Overview
The SR3.3.TCT is an ESD And Surge Protection made by SEMTECH in a SOT-143 package with 4 pins. -55℃~+125℃ 150W 15V 1uA 2 3.3V 3pF、10pF ESD IEC 61000-4-2、IEC 61000-4-4 SOT-143 ESD and Surge Protection (TVS/ESD) ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:SR3.3.TCT, from EasyEDA) and its footprint (Package_TO_SOT_SMD:SOT-143, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C512377).
Symbol
Footprint
Parameters
11- Clamping Voltage
- 15V
- Junction Capacitance
- 6pF
- Number of Channels
- 2
- Operating Temperature
- -55℃~+125℃
- Peak Pulse Current (Ipp)
- 10A@8/20us
- Peak Pulse Power Dissipation (Ppp)
- 150W@8/20us
- Reverse Leakage Current (Ir)
- 1uA
- Reverse Stand-Off Voltage (Vrwm)
- 3.3V
- Type
- TVS
- Voltage - Breakdown
- 3.5V
- level of protection
- IEC 61000-4-2, IEC 61000-4-4
Order codes
1- SR3.3.TCTLCSC C512377
Pinout
4| Pin | Name | Type |
|---|---|---|
| 1 | 1 | Unspecified |
| 2 | 2 | Unspecified |
| 3 | 3 | Unspecified |
| 4 | 4 | Unspecified |
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<iframe src="https://pcbkit.io/embed/parts/semtech/SR3.3.TCT" title="SR3.3.TCT in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/semtech/SR3.3.TCT.jpg" alt="SR3.3.TCT" width="1200" height="900">[](https://pcbkit.io/parts/semtech/SR3.3.TCT)Questions
Is there a KiCad symbol and footprint for the SR3.3.TCT?
Yes. The symbol is EasyEDA_Cloud:SR3.3.TCT and the footprint Package_TO_SOT_SMD:SOT-143, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the SR3.3.TCT?
SOT-143, with 4 pins. Its footprint is drawn on this page.
Where is the SR3.3.TCT datasheet?
SEMTECH publishes it: the Datasheet link on this page opens it.
Where can I order the SR3.3.TCT?
JLCPCB lists it as part C512377, with 0 in stock; the sellers' links on this page open their listings.
What can replace the SR3.3.TCT?
Parts like it in the library: the CD143A-SR3.3 by Bourns, the CM1293A-02SR by onsemi, the D1213A-02SR by Diodes Incorporated and the CM1213A-02SR by onsemi. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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