Overview
The ASMCJ45A-HF is an ESD And Surge Protection made by Comchip in a DO-214AB(SMC) package with 2 pins.
PCBKit's library has its KiCad symbol (Device:D_TVS, from KiCad's library) and its footprint (Diode_SMD:D_SMC, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C20185332).
Symbol
Footprint
Parameters
10- Clamping Voltage
- 72.7V
- Number of Channels
- 1
- Operating Temperature
- -55℃~+150℃
- Peak Pulse Current (Ipp)
- 20.6A@10/1000us
- Peak Pulse Power Dissipation (Ppp)
- 1.5kW@10/1000us
- Polarity
- Unidirectional
- Reverse Leakage Current (Ir)
- 5uA
- Reverse Stand-Off Voltage (Vrwm)
- 45V
- Type
- TVS
- Voltage - Breakdown
- 55.3V
Order codes
1- ASMCJ45A-HFLCSC C20185332
Pinout
2| Pin | Name | Type |
|---|---|---|
| 1 | A1 | Passive |
| 2 | A2 | Passive |
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<iframe src="https://pcbkit.io/embed/parts/comchip/ASMCJ45A-HF" title="ASMCJ45A-HF in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/comchip/ASMCJ45A-HF.jpg" alt="ASMCJ45A-HF" width="1200" height="900">[](https://pcbkit.io/parts/comchip/ASMCJ45A-HF)Questions
Is there a KiCad symbol and footprint for the ASMCJ45A-HF?
Yes. The symbol is Device:D_TVS and the footprint Diode_SMD:D_SMC, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the ASMCJ45A-HF?
DO-214AB(SMC), with 2 pins. Its footprint is drawn on this page.
Where is the ASMCJ45A-HF datasheet?
Comchip publishes it: the Datasheet link on this page opens it.
Where can I order the ASMCJ45A-HF?
JLCPCB lists it as part C20185332, with 0 in stock; the sellers' links on this page open their listings.
What can replace the ASMCJ45A-HF?
Parts like it in the library: the 5.0SMDJ45CA/TR13 by Brightking, the SMCJ45CA by hongjiacheng, the SMDJ45A by hongjiacheng and the SMDJ45CA by BORN. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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