KEPO KPT-1420A User manual

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Customer: Sharp Microwave oven
Applied To :
Product Name : Piezo Transducer
ModelName : KPT-1420A
Drawing No. : OEM2103
RoHSCompliance
SPECIFICATION
Ningbo Kepo Electronics Co.,Ltd.
SignatureofKEPO
Approved by
SignatureofApproval
Date
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CONTENTS
ModelNo. :
Ningbo Kepo Electronics Co.,Ltd. http://www.chinaacoustic.com
1. Scope
2.General
3.ElectricalandAcousticCharacteristics.
4. ReliabilityTest
5.MeasurementBlockDiagram&Responsecurve
6.Dimensions
7. Packing
8.Revision
2/10
1.2
OEM2103SPE
SpecificationforTransducer
KPT-1420A

Ningbo Kepo Electronics Co.,Ltd. http://www.chinaacoustic.com
2.1Out-Diameter: 14.2mm
2.2Height : 11 mm
2.3Weight : 2g
2.4Operating Temperaturerange:
-20 +70 without loss of function
2.5StoreTemperaturerange:
-30 +80℃without loss of function
2. General
This productspecification is applied tothe piezoelectric sounderin alarm
systems.Pleasecontact uswhen using this product foranyotherapplicationsthan
described inthe above.
1. Scope
3. Electricaland Acoustic Characteristics.
7
5
6
4
Items
3
2
1
Specification
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Test condition : 15 ~35 ℃, 25%~85%RH, 860~1060 mbar
SpecificationforTransducer 1.2
2mAat 2.0KHz/5Vp-pSquare Wave
30Vp-pSquareWave
5Vp-pSquareWave
70dBat 2.0KHz/5Vp-pSquareWave/10cm
2.0±0.5KHz
15000pF±30%
Resonant Frequency
Max.Rated Current
Max.AllowableVoltage
Capacitanceat 100Hz
CaseMaterial/Color
Rated Voltage
PC/BLACK
Min.Sound PressureLevel
KPT-1420A OEM2103SPE

Ningbo Kepo Electronics Co.,Ltd. http://www.chinaacoustic.com
4. Reliability Test
Afterbeing worked inachamberat +80±2 for1hour, then
soundershall be placed inachamberat -40±2 for1hour(1
cycleis the belowdiagram).
After10abovecycles, soundershall be measured afterbeing
placed innaturalcondition for1hour.
Afterbeing placed inachamberwith 90 to95%R.H.at +60±
2for 2hand then being placed innaturalcondition for240h,
soundershall be measured.
First being worked inachamberwith -40±2for 240hand
then being placed inachamberwith -40±2 ℃for16h, finally
being placed innaturalcondtion for2h, soundershall be
measured.
Afterbeing woked inachamberwith +85±2 for240hand
then being placed innaturalcondition for2h, soundershall be
measured.
4
3
ThermalShock
Test
HumidityTest
2
1
LowTemperature
Test
High Temperature
Test
Item Specification
Aftertest(1~7item), the transducrS.P.L. differenceshall be within ±10dB, and the
appearancenot exist anychange tobe harmfultonormaloperation(e.g.
cracks,rusts,damagesand especially distortion).
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SpecificationforTransducer 1.2
-40
+80
1hour
20 Sec.
1hour
KPT-1420A OEM2103SPE

Ningbo Kepo Electronics Co.,Ltd. http://www.chinaacoustic.com
Soundershall be measured afterbeing applied vibration of
amplitude of1.5mmwith10 to30Hzband of vibration frequency
toeachof 3perpendiculardirectionsfor2hour.
5Vibration
Resistance
Item Specification
Sounderpacked inthe carton aredropped insix direction
fromthe height of 80cmtothe concretefloor.
Drop Test
6
7
Terminal
StrengthPulling The force10secondsof9.8Nis applied go eachterminalin
axialdirection.
Solderability Lead terminals areimmersed inrosin for5secondsand the
immersed insolderbath of +260±5°Cfor3±0.5seconds.
8
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SpecificationforTransducer 1.2
4. Reliability Test
KPT-1420A OEM2103SPE
S.G.:DF1010Oscillaterorequivalent
MIC:ND10S.P.L.orequivalent
piezoelectricsounder
10cm
5. Measurement Block Diagram& Response curve
≥1m
Sound meter
Run continuouslyfor240hourswithinput signal20Vp-p,4KHz
Squarewave, soundershall be measured afterbeing placed in
naturalcondition for4hours.
9Run continuously
test

Ningbo Kepo Electronics Co.,Ltd. http://www.chinaacoustic.com
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SpecificationforTransducer 1.2
KPT-1420A OEM2103SPE
1Vrms Sine Wave/10cm

Ningbo Kepo Electronics Co.,Ltd. http://www.chinaacoustic.com
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SpecificationforTransducer 1.2
KPT-1420A OEM2103SPE
3Vp-pSquare Wave/10cm

KEPO
Ningbo Kepo Electronics Co.,Ltd. http://www.chinaacoustic.com
7. Dimensions
UNIT: mm
Tolerance: ±0.5
FIRSTANGLEPROJECTION
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SpecificationforTransducer 1.2
KPT-1420A OEM2103SPE

Ningbo Kepo Electronics Co.,Ltd. http://www.chinaacoustic.com
8. Packing
QTY: 350Pcs
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SIZE:330x55x230mm
SpecificationforTransducer 1.2
KPT-1420A OEM2103SPE
Lable
EligibilityCertificate
CompanyName：NingBoKEPOElectronicsco.,LTD
P/N：RALMBA008DRZZQTY：350PCS
Production Date：Inspector：
Shipment Date：
Lot Number：
ROHS Compliance
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Ningbo Kepo Electronics Co.,Ltd. http://www.chinaacoustic.com
9. Revision
SpecificationforTransducer
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Rev.
No. DATE PAGE DESCRIPTION SIGN
1.2
/2006.09.20 primary
1.0
KPT-1420A OEM2103SPE
1.1 2007.02.14 Change PIN
8
1.2 2007.04.27 8Change PIN