Page 1.2 25A & 1.5A SOLID STATE SPST SWITCH MODULES 40-184A/185A
pickering
SECTION 1 - TECHNICAL SPECIFICATION
Operating/Storage Conditions
Operating Temperature:
Humidity:
Altitude:
0 °C to +55 °C
Up to 90 % non-condensing
5000 m
Storage Temperature:
Humidity:
Altitude:
-20 °C to +75 °C
Up to 90 % non-condensing
15000 m
Hardware Interlock
The 40-184A modules are available with an optional
hardware interlock. The interlock, when activated,
will return all relays to their default unpowered
state (assuming the relays are fully functional)
and also provide error notification via the software
interface. The interlock feature can be daisy-
chained between additional hardware interlock
enabled modules for example to allow one signal
to disable multiple cards. For further details please
refer to the Hardware Interlock section within the
user manual.
100 Ω
+3.3 V
GND
External
Wire Link
Front Panel
Connector
Interlock
Daisy-chain
Interlock
Detection
Circiuitry
Processor Relay Driver(s)
SPI Serial
Comms
Output Enable
SPI Serial
Comms
Output Enable
Drive
Outputs
To
Relays
Interlock Signal Routing Diagram for 40-184A
Versions With Hardware Interlock Option
Interlock Connector
Switching Specification
Switch Type Solid State MOSFET
Default Relay State: Open with or without power
applied
Max Switch Voltage:
Continuous Switch Current:
Peak Current:
±100 V* (DC or AC peak)†
25 A, all channels
simultaneously
90 A for 200 µs
Max Total Module Current: 6 channels each carrying 25 A
Initial On Path Resistance:
Leakage Current:
<40 mΩ at 25 °C typical
<1µA at 25 °C
Rise/Fall Time:
Operate Time:
Maximum Operating Speed:
<5 µs typical
20 µs
1845 cycles/sec
(100
VDC, 1.3A)
1848 cycles/sec
(25 VDC, 25A)
Expected Life (operations): Indefinite when used within
ratings
* For full voltage rating, signal sources to be switched must
be fully isolated from mains supply and safety earth.
† Differential voltage between channels must not exceed
rated voltage, additional caution should be used when
applying AC voltages as multiple asynchronous supplies can
create high differential voltages between channels.
Power Requirements
+3.3 V +5 V +12 V -12 V
300 mA 550 mA 0 0
Mechanical Characteristics
40-184A-001: Double slot 3U PXI (CompactPCI card).
40-184A-002: Single slot 3U PXI (CompactPCI card).
3D models for all versions in a variety of popular file formats
are available on request.
Connectors
PXI bus via 32-bit P1/J1 backplane connector. Signals via front
panel connectors, for pin outs refer to the operating manual.
• 40-184A-001: 2 x male 8-pin power D-Type connectors.
• 40-184A-002: 1 x male 8-pin power D-Type connector.
• Interlock: 1 x 4-pin female 00 series connector*
(40-184A versions with hardware interlock option)
*Mating half supplied when hardware interlock option ordered,
to be wired by end user.
40-184A
pickeringtest.com Page 2
Specifications
