NXP Semiconductors UM10468 User manual

UM10468
SSL2108X buck evaluation board
Rev. 1 — 30 August 2011 User manual
Document information
Info Content
Keywords SSL2108X, Buck, down converter, AC/DC converter, retrofit SSL, LED
driver, LED retrofit lamp, non-dimmable
Abstract The SSL2108X is a range of high-voltage Integrated Circuits (ICs),
intended to drive non-dimmable retrofit LED lamps in general lighting
applications. This document describes the evaluation board for mains
operated non-dimmable LED drivers using the SSL21081, SSL21082,
SSL21083 and SSL21084 controller ICs.
Refer to the SSL2108X data sheet for details on the SSL2108X device
and application note AN11041 for general application information.

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Contact information
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: [email protected]
NXP Semiconductors UM10468
SSL2108X buck evaluation board
Revision history
Rev Date Description
v.1 20110830 first issue

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SSL2108X buck evaluation board
1. Introduction
The SSL2108X is a family of high-voltage Integrated Circuits (IC), designed to drive
non-dimmable retrofit LED lamps in general lighting applications. The product family
consists of four ICs with different configurations which are shown in Table 1.
[1] SO12 package variants have more fused leads for lower thermal resistance and can be used when a higher
output power is needed.
Main benefits of the product family are:
•Small Printed-Circuit Board (PCB) footprint providing a compact solution
•High-efficiency (up to 95 %)
•Ease of integration
•Low electronic Bill Of Material (BOM)
The SSL2108X provides accurate output control with more than 5 % LED current
accuracy. The ICs can operate using Pulse-Width Modulation (PWM) dimming and have
many protection features including easy external temperature feedback.
The SSL2108X driver family is the high performance solution for the next generation of
retrofit LED lamps. These ICs provide a high efficiency, high-power factor solution in a
small form factor.
Remark: Unless otherwise stated all voltages are in V (DC).
WARNING
Lethal voltage and fire ignition hazard
The non-insulated high voltages that are present when operating this product, constitute a
risk of electric shock, personal injury, death and/or ignition of fire.
This product is intended for evaluation purposes only. It shall be operated in a designated test
area by personnel qualified according to local requirements and labor laws to work with
non-insulated mains voltages and high-voltage circuits. This product shall never be operated
unattended.
Table 1. SSL2108X type number overview
Type Package Vmains range
(V (AC)) Internal MOSFET characteristics Adjustable brownout protection
SSL21081 SO8 100 to 120 300 V; 2 no
SSL21082 SO12[1] yes
SSL21083 SO8 100 to 230 600 V; 5 no
SSL21084 SO12[1] yes

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2. Safety warning
This reference board is connected to a high AC voltage (up to 250 V). Avoid touching the
demo board during operation. An isolated housing is obligatory when used in
uncontrolled, non-laboratory environments. Galvanic isolation of the mains phase using a
fixed or variable transformer (Variac) is always recommended. These devices are
recognized by the symbols shown in Figure 1
3. Specification
[1] Refer to Section 5 for more detailed information.
a. Isolated b. Not isolated
Fig 1. Variac isolation symbols
019aab173
019aab174
Table 2. Specifications for the reference board
Parameter Value Comment
AC line input voltage
SSL21081 and SSL21082 85 V (AC) to 138 V (AC) optimized for 100 V (AC)
SSL21083 and SSL21084 230 V (AC) optimized for 100 V (AC)
Output voltage (VLED)
SSL21081 and SSL21082 20 V to 70 V optimized for 60 V
SSL21083 and SSL21084 20 V to 140 V optimized for 120 V
Output current (ILED)
SSL21081 95 mA, 70 mA, 38 mA adjust using jumpers J7A, J8A, J9A
SSL21082 160 mA, 125 mA, 105 mA adjust using jumpers J7A, J8A, J9A
SSL21083 55 mA, 35 mA, 18 mA adjust using jumpers J7A, J8A, J9A
SSL21084 80 mA, 69 mA, 53 mA adjust using jumpers J7A, J8A, J9A
Maximum LED output power (Po(LED))
SSL21081 and SSL21083 6 W optimized for 6 W using dedicated loads[1]
SSL21082 and SSL21084 15 W optimized for 10 W using dedicated loads[1]
Switching frequency
Nominal switching frequency
(fsw(nom))100 kHz -
Board dimension (L WH)
SSL21081,SSL21082,SSL21083
and SSL21084 70 mm 60 mm 23 mm maximum footprint
Temperature
Operating temperature 40 Cto+100C-

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SSL2108X buck evaluation board
4. Performance data
4.1 Output load
4.2 Efficiency Curve
Fig 2. SSL21081 load curve: Ioas a function of Vo
60
80
40
100
120
l
o
(mA)
20
V
o
(V)
0 1008040 6020
019aac361
Fig 3. SSL21081: Efficiency () as a function of output power (Po)
84
90
88
86
92
η
(%)
Po (W)
08624
019aac362

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4.3 Input voltage dependency
4.4 ElectroMagnetic Compatibility data
Fig 4. SSL21081 input voltage dependency: Ioas a function of Vmains = VIN
40
80
120
l
o
(mA)
0
V
mains
(V)
40 14012080 10060
019aac363
(1) Peak values.
(2) Average values.
Fig 5. SSL21081 EMC measurement L-phase according to FCC15 norm
019aac364
(1)
(2)

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SSL2108X buck evaluation board
(1) Peak values.
(2) Average values.
Fig 6. SSL21081 EMC measurement N-phase according to FCC15 norm
(1) Peak values.
(2) Average values.
Fig 7. SSL21083 EMC measurement L-phase according to EN55015 norm
019aac365
(1)
(2)

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(1) Peak values.
(2) Average values.
Fig 8. SSL21083 EMC measurement N-phase according to EN55015 norm

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SSL2108X buck evaluation board
4.5 SSL21081 mains harmonics
Table 3. SSL21081 mains conducted harmonics
Line Percent (%) Class-C Except Line Percent (%) Class-C Except
1 100 100 100 21 5.9 3 undefined
2 0 2 undefined 22 0 2 undefined
3 84.7 30 86 23 4.4 3 undefined
4 0 2 undefined 24 0.4 2 undefined
5 59.8 10 61 25 3.8 3 undefined
6 0 2 undefined 26 0.4 2 undefined
7 34.1 7 undefined 27 3.6 3 undefined
8 0 2 undefined 28 0 2 undefined
9 17.9 5 undefined 29 3.2 3 undefined
10 0 2 undefined 30 0 2 undefined
11 15.4 3 undefined 31 2.2 3 undefined
12 0 2 undefined 32 0.2 2 undefined
13 13.9 3 undefined 33 2.2 3 undefined
14 0 2 undefined 34 0.2 2 undefined
15 9.7 3 undefined 35 2 3 undefined
16 4.5 2 undefined 36 0.4 2 undefined
17 7 3 undefined 37 1.9 3 undefined
18 0.6 2 undefined 38 0 2 undefined
19 6.8 3 undefined 39 1.4 3 undefined
20 0.3 2 undefined 40 0 2 undefined
(1) Input voltage VIN.
(2) Input current II.
Fig 9. VIN and IIfor a 100 V; 60 Hz AC mains supply
019aac366
(1)
(2)

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(1) Drain voltage VDRAIN.
(2) Source voltage VSOURCE.
Fig 10. VDRAIN and VSOURCE typical waveforms
019aac367
(1)
(2)

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5. Connection data
The evaluation board operates from either:
•SSL21081 and SSL21082: 100 V (AC) to 120 V (AC) mains supply voltage
•SSL21083 and SSL21084: 230 V (AC) mains supply voltage
The evaluation board is designed to work with an LED module with an operating voltage
of:
•SSL21081 and SSL21082: 60 V
•SSL21083 and SSL21084: 120 V
Loads consisting of multiple high-power LEDs in series with similar operating voltages can
also be used. A dedicated SHARP GW5BDQ27KK3 LED load for connecting to connector
K2A is available on request. Other loads can be connected to either connector K2A or K3.
When attaching an LED load to a board under power (hot plugging), an inrush peak
current occurs due to discharge of capacitor C3. After several discharges, the LEDs will
deteriorate or become damaged.
Jumper settings J1A to J6A shown in Table 4 set the package-specific circuitry to enable
each device to function correctly.
5.1 The board connections
When connecting the evaluation board consider the following:
•Place a galvanic isolated transformer between the AC source and the evaluation
board connector K1A, if used.
•Connect a user-defined LED module to connector K2A or K3. Ensure that the anode
of the LED module is connected to one of the positive LED terminals.
•Connector K4 can be used:
–to connect an external NTC resistance. Remove the pre-soldered NTC RT1 (see
Ref. 1)
–to use a PWM dimming signal to the converter (see Ref. 1)
Table 4. SSL2108X jumper settings overview
IC Package Jumper settings
J1A J2A J3A J4A J5A J6A
SSL21081 SO8 no yes no yes no yes
SSL21083
SSL21082 SO12 yes no yes no yes no
SSL21084

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6. Functional description
The SSL2108X IC (Ref. 1) uses Boundary Conduction Mode (BCM) with peak current
control. The SSL2108X controls and drives the converter. In addition, the SSL2108X
offers a low component count LED buck converter solution. Valley switching and PWM
dimming are implemented into the SSL2108X together with several protection features:
•UnderVoltage LockOut (UVLO)
•Leading-Edge Blanking (LEB)
•OverCurrent Protection (OCP)
•Internal OverTemperature Protection (OTP)
•Brownout protection
•Short-Winding Protection (SWP)
•Output Short Protection (OSP)
•NTC over temperature control and protection
Both the SWP and the OSP are latched protections circuits. These protective features
cause the IC to halt until a reset is executed. If VCC drops below its restart level, the IC
resets the latched protection mode. Restarting the evaluation board is done by removing
AC mains supply voltage. All other protective features cause a safe restart of the
converter. Refer to the SSL2108X data sheet for detailed information on all protective
features.
Depending on the selected SSL2108X version, the evaluation board is optimized for an
LED voltage, LED current and resulting output power. See Table 2. As a default, jumper
J7A is set to apply the full output power to the LED load. Setting jumper J8A or J9A
instead reduces the output power to either 66 % or 33 % of the original output power.
Remark: Do not remove or set jumpers when the board is connected to the AC mains
supply voltage because LED damage can occur.
Fig 11. Board connection diagram
J5
K3
LED +
LED load
LED load
LED -
LED +
LED -
K2
IC1
X55
J6
J10
D2
C1D1C8
L2
FUSE 1
K1
K4 RT1
C2 D3 L3 C3
L1
J3
J2
J1
J4
J9
J8
J7
NTC -
L
N
NTC +
mains
input
external NTC/
PWM input
019aac358

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Jumper J10A is connected in series with the brownout capacitor C8. Removing this
jumper sets the brownout protection trigger values to be reset to default value.
Remark: Brownout protection is only available in the SSL21082 and SSL21084.
TVS Diode D2 is present to protect the DC circuit against overvoltage.
7. Board optimization
The EMC filter calculations for components C1, C2, L1 are described in AN11041 (see
Ref. 2). On the evaluation board, L2 and C8 have been added to provide extra filtering to
meet EMC norms.
Power factor of the evaluation board depends mainly on the input resistance of the input
fused resistor FUS1. A higher resistance proportionally increases the power factor but
reduces the overall efficiency of the evaluation board.
Another way to get higher power factor is to add a valley fill circuit. The valley fill circuit
improves power factor with reduced efficiency losses. The disadvantage is the higher
component count needed. Figure 12 gives an overview for the SSL21081 of input
resistance as a function of power factor and efficiency.
Remark: Calculations for other components on the SSL2108X evaluation board can be
found in AN11041 (see Ref. 2).
(1) Efficiency curve.
(2) Power factor curve.
Fig 12. Input resistance (RIN) as a function of Power Factor (PF) and Efficiency ()
019aac359
R
in
(Ω)
0 1208040
78
90
86
82
94
0.8
0.6
0.4
0.2
0.0
η
(%)
PF
(1)
(2)

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7.1 Active bypass
An increased value for the inrush current resistor causes the board to operate with the
most phase cut dimmers, but also lowers the efficiency. If a higher power factor is not
required, but leading-edge dimmer compatibility and high efficiency are important, the
active bypass option is available. In this circuit, the inrush current resistor is bypassed
using an SCR (see Figure 13).
Fig 13. Active bypass
019aac538
56 Ω
1 MΩ
MCR22-6
22 nF

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8. Negative Temperature Coefficient (NTC) function
The NTC pin can act as a control for thermal protection, an input for disabling/enabling the
light output using PWM dimming and a soft-start function.
When using the NTC pin as a control for thermal protection, the pre-soldered NTC RT1
can be used. Alternatively, a user-defined NTC resistor can be directly connected to this
pin through connector K4. Remove the pre-soldered NTC RT1 in this case. If necessary, a
resistor R6 can be mounted to fine-tune the NTC protection. As the default, a 0 
resistance is mounted.
In addition, a PWM signal can be connected to connector K4, making PWM dimming
possible. Capacitor C7 is used as the soft-start capacitor. When using the soft-start
capacitor, the NTC protection function changes from auto-restart protection to a latched
protection.
Remark: Detailed information on the NTC function can be found in the SSL2108X
data sheet (see Ref. 1).

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9. Schematic
Fig 14. Schematic
019aac360
L1
K1 K2
K3
LED+
LED+
LED-
LED-
earth
N
to mains RGND
to LED’s
DRAINHV 1
SSL21081/
SSL21083
SSL21082/
SSL21084
2
3
4
5
6
7
14
13
12
11
10
9
8
n.c.
GND
(GND)
(DVDT)
(SOURCE)
(NTC)
(VCC)
S
VCC
NTC
NTC+
NTC-
GND
RGND
n.c.
GND
GND
DVDT
TONMAX
GND
IC1
C3C2
C1
L1
L2
C8
D1
D2
FUS 1
C4
C6
J10
J5
J1
J7J8J9
J2
J3
J4
J6
C7
C6
R6
RT1
NTC
K4
R5
R1R2R3R4
L3
D3
TP3
test point
TP7
test point
TP6
test point
TP5
test point
TP2
test point
TP4
test point
TP2
test point
TP1
test point
TP2
test point

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10. Bill of materials (BOM)
10.1 BOM for SSL21081 evaluation board
Table 5. SSL21081 Bill of materials
Ref. Description and value Manufacturer and part no. Remark
A1 SSL21081 controller IC NXP Semiconductors -
A1A IC socket Wells-cti; 652B0142211-002 not mounted
C1 filter capacitor; 10 F; 200 V Nichicon; UVZ2D100MPD1TD -
C2 filter capacitor; 10 F; 200 V Nichicon; UVZ2D100MPD1TD -
C3 ripple capacitor; 2.2 F; 450 V Panasonic; ECA2WHG2R2 -
C4 dV/dt capacitor; 2 kV; 150 pF Multicomp; MCCA000740 -
C5 VCC supply; capacitor; 10 F; 25 V Murata; GRM21BR61E106KA73L -
C6 ton(max) capacitor - not mounted
C7 soft-start/ripple filter; 22 F; 10 V Kemet; C1206C226M8PACTU -
C8 filter capacitor - not mounted
D1 bridge rectifier; 1 A; 600 V Multicomp; DBLS105G -
D2 TVS; 200 V; 1.5 KW ST Microelectronics; 1.5KE 200A -
D3 ES1J; 1 A; 600 V Multicomp; ES1J -
Fus 1 fused resistor; 2 W; 10 R Welwyn; EMC2-10RK -
J1 to J9 headers Fischer Elektronik; MK 05/50G -
J10 header Fischer Elektronik; MK 05/50G not mounted
J1A jumper Lumberg; 2,54MKB not mounted
J2A jumper Lumberg; 2,54MKB -
J3A jumper Lumberg; 2,54MKB not mounted
J4A jumper Lumberg; 2,54MKB -
J5A jumper Lumberg; 2,54MKB not mounted
J6A jumper Lumberg; 2,54MKB -
J7A jumper Lumberg; 2,54MKB -
J8A jumper Lumberg; 2,54MKB not mounted
J9A jumper Lumberg; 2,54MKB not mounted
J10A jumper Lumberg; 2,54MKB not mounted
K1 header Weidmuller; SL 5.08/3/90 -
K1A socket Weidmuller; BL 5.08/3 -
K2 header Weidmuller; SL 5.08/2/90 -
K2A socket Weidmuller; BL 5.08/2 -
K3 header Fischer Elektronik; BL3.36Z -
K4 header Fischer Elektronik; BL3.36Z -
L1 filter inductor; 1 mH; 170 mA Murata power solutions; 22R105C -
L2 filter inductor; Short - -
L3 buck inductor; 1 mH; 0.5 A Wurth elektronik; 768772102 -
R1 Rsense; 6.8 ; 0.33 W; 1 % Panasonic; ERJ8BQF6R8V -
R2 Rsense; 3.3 ; 0.33 W; 1 % Panasonic; ERJ8BQF3R3V -

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10.2 BOM for SSL21082 evaluation board
R3 Rsense; 5.1 0.25 W; 1 % Vishay dale; CRCW12065R10FKEA -
R4 Rsense; 16 ; 0.25 W; 1 % VIshay dale; CRCW120616R0FKEA -
R5 inrush resistor; 0 Multicomp; MC 0.1W 0805 0R -
R6 resistor; 0 Multicomp; MC 0.1W 0805 0R -
RT1 NTC; 100 kEPCOS; B57164K104J -
TP1 to TP8 test pins Vero; 20-313138 -
X56 jumper link Fischer Elektronik; 2412 015 30123 -
X57 jumper link; Fischer Elektronik; 2412 015 30123 -
Table 5. SSL21081 Bill of materials …continued
Ref. Description and value Manufacturer and part no. Remark
Table 6. SSL21082 Bill of materials
Ref. Description and value Manufacturer and part no. Remark
A1 SSL21082 Controller IC NXP Semiconductors; SSL21082T -
A1A IC Socket; n.m. Wells-cti; 652B0142211-002 not mounted
C1 filter capacitor; 10 F; 200 V Nichicon; UVZ2D100MPD1TD -
C2 filter capacitor; 10 F; 200 V Nichicon; UVZ2D100MPD1TD -
C3 ripple capacitor; 2.2 F; 450 V Panasonic; ECA2WHG2R2 -
C4 dV/dt capacitor; 150 pF; 2000 V Multicomp; MCCA000740 -
C5 VCC supply capacitor; 10 µF; 25 V MURATA; GRM21BR61E106KA73L -
C6 ton(max) capacitor; 100 pF; 100 V AVX; 08051A101JAT2A -
C7 soft-start/ripple filter; 22 F; 10 V KEMET; C1206C226M8PACTU -
C8 filter capacitor; n.m. - not mounted
D1 bridge rectifier; 1 A; 600 V Multicomp; DBLS105G -
D2 TVS; 200 V; 1.5 kW ST Microelectronics; 1.5KE200A -
D3 ES1J; 1 A; 600 V Multicomp; ES1J -
Fus 1 fused resistor; 2 W; 10 Welwyn; EMC2-10RK -
J1 to J9 headers Fischer Elektronik; MK 05/50G -
J10 header Fischer Elektronik; MK 05/50G -
J1A jumper Lumberg; 2,54MKB -
J2A jumper; n.m. Lumberg; 2,54MKB not mounted
J3A jumper Lumberg; 2,54MKB -
J4A jumper; n.m. Lumberg; 2,54MKB not mounted
J5A jumper Lumberg; 2,54MKB -
J6' jumper; n.m. Lumberg; 2,54MKB not mounted
J7A jumper Lumberg; 2,54MKB -
J8A jumper; n.m. Lumberg; 2,54MKB not mounted
J9A jumper; n.m. Lumberg; 2,54MKB not mounted
J10A jumper Lumberg; 2,54MKB -
K1 header Weidmuller; SL 5.08/3/90 -
K1A socket Weidmuller; BL 5.08/3 -
K2 header Weidmuller; SL 5.08/2/90 -

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10.3 BOM for SSL21083 evaluation board
K2A socket Weidmuller; BL 5.08/2 -
K3 header Fischer Elektronik; BL3.36Z -
K4 header Fischer Elektronik; BL3.36Z -
L1 filter inductor; 1 mH; 170 mA Murata power solutions; 22R105C -
L2 filter inductor; short - -
L3 buck inductor; 680 H; 0.35 A Panasonic; ELC09D681F -
R1 Rsense; 0.33 W; 1 %; 6.8 Panasonic; ERJ8BQF6R8V -
R2 Rsense; 0.3 3 W; 1 %; 1.6 Panasonic; ERJ8BQF1R6V -
R3 Rsense; 0.25 W; 1 %; 2.2 Panasonic; ERJ8BQF2R2V -
R4 Rsense; 0.25 W; 1 %; 2.7 Panasonic; ERJ8BQF2R7V -
R5 inrush resistor; 0 Multicomp; MC 0.1 W 0805 0 R -
R6 resistor; 0 Multicomp; MC 0.1 W 0805 0 R -
RT1 NTC; 100 kEPCOS; B57164K104J -
TP1 to TP8 test pins Vero; 20-313138 -
X56 jumper link Fischer Elektronik; 2412 015 30123 -
X57 jumper link Fischer Elektronik; 2412 015 30123 -
Table 6. SSL21082 Bill of materials …continued
Ref. Description and value Manufacturer and part no. Remark
Table 7. SSL21083 Bill of materials
Ref. Description and value Manufacturer and part no. Remark
A1 SSL21083 Controller IC NXP Semiconductors; SSL21083 -
A1A IC Socket; n.m. Wells-cti; 652B0142211-002 not mounted
C1 filter capacitor; 4.7 F; 400 V Panasonic; ECA2GHG4R7 -
C2 filter capacitor; 4.7 F; 400 V Panasonic; ECA2GHG4R7 -
C3 ripple capacitor; 3.3 F; 400 V Panasonic; ECA2GHG3R3 -
C4 dV/dt capacitor; 100 pF; 1000 V Johanson Dielectrics;
102R18W101KV4E -
C5 VCC supply capacitor; 10 F; 25 V Murata; GRM21BR61E106KA73L -
C6 ton(max) capacitor; n.m. - -
C7 soft-start/ripple filter; 22 F 10 V KEMET; C1206C226M8PACTU -
C8 filter capacitor; n.m. - not mounted
D1 bridge rectifier; 1 A; 600 V Multicomp; DBLS105G -
D2 TVS; 400 V; 1.5 kW ST Microelectronics; 1.5KE400A -
D3 ES1J; 1 A; 600 V Multicomp; ES1J -
Fus 1 fused resistor; 2 W; 22 Welwyn; EMC2-22RKI -
J1-J9 headers Fischer elektronik; MK 05/50G -
J10 header; n.m. Fischer Elektronik; MK 05/50G not mounted
J1A jumper; n.m. Lumberg; 2,54MKB not mounted
J2A jumper Lumberg; 2,54MKB -
J3A jumper; n.m. Lumberg; 2,54MKB not mounted
J4A jumper Lumberg; 2,54MKB -

UM10468 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
User manual Rev. 1 — 30 August 2011 20 of 27
NXP Semiconductors UM10468
SSL2108X buck evaluation board
J5A jumper; n.m. Lumberg; 2,54MKB not mounted
J6A jumper Lumberg; 2,54MKB -
J7A jumper Lumberg; 2,54MKB -
J8A jumper; n.m. Lumberg; 2,54MKB not mounted
J9A jumper; n.m. Lumberg; 2,54MKB not mounted
J10A jumper; n.m. Lumberg; 2,54MKB not mounted
K1 header Weidmuller; SL 5.08/3/90 -
K1A socket Weidmuller; BL 5.08/3 -
K2 header Weidmuller; SL 5.08/2/90 -
K2A socket Weidmuller; BL 5.08/2 -
K3 header Fischer Elektronik; BL3.36Z -
K4 header Fischer Elektronik; BL3.36Z -
L1 filter inductor; 1 mH; 170 mA Murata power solutions; 22R105C -
L2 filter inductor; wire - -
L3 buck inductor; 3.3 mH; 100 mA Murata power solutions; 22R335C -
R1 Rsense; 0.125 W; 1 %; 20 Multicomp; MC 0.125W 1206 1% 20R -
R2 Rsense; 0.33 W; 5 %; 4.3 Panasonic; ERJ8BQF4R3V -
R3 Rsense; 0.33 W; 1 %,6.8 Panasonic; ERJ8BQF6R8V -
R4 Rsense; 0.33 W; 5 %; 18 Panasonic; ERJT08J180V -
R5 inrush resistor; 0 Multicomp; MC 0.1W 0805 0R -
R6 resistor; 0 Multicomp; MC 0.1W 0805 0R -
RT1 NTC; 100 kEPCOS; B57164K104J -
TP1-TP8 test pins Vero; 20-313138 -
X56 jumper link Fischer Elektronik; 2412 015 30123 -
X57 jumper link Fischer Elektronik; 2412 015 30123 -
Table 7. SSL21083 Bill of materials …continued
Ref. Description and value Manufacturer and part no. Remark