
Overview
The STCM21T is a balun made by Sunltech Tech in a SMD-5P,3.8x3.8mm package with 5 pins. -40℃~+85℃ 1.5dB 10dB 1:2 2.5dB 300kHz~500MHz 5° SMD-5P,3.8x3.8mm Balun ROHS.
PCBKit's library has its footprint (EasyEDA_Cloud:XFMR-SMD_5P-L3.8-W3.8-P1.27-BL, from EasyEDA), ready for a KiCad board. 966 are in stock at JLCPCB (part C5125528).
Symbol
The library has no symbol for this part yet.
Footprint
Parameters
10- Amplitude Balance (Max)
- 1.5dB
- Frequency Range
- 300kHz~500MHz
- Height
- 2.8mm
- Impedance - Unbalanced/Balanced
- 1:2
- Insertion Loss (Max)
- 2.5dB
- Length
- 3.8mm
- Operating Temperature
- -40℃~+85℃
- Phase Difference
- 5°
- Return Loss(Min)
- 10dB
- Width
- 3.8mm
Order codes
1- STCM21TLCSC C5125528
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<iframe src="https://pcbkit.io/embed/parts/sunltech-tech/STCM21T" title="STCM21T in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/sunltech-tech/STCM21T.jpg" alt="STCM21T" width="1200" height="900">[](https://pcbkit.io/parts/sunltech-tech/STCM21T)Questions
Is there a KiCad symbol and footprint for the STCM21T?
Yes. the footprint EasyEDA_Cloud:XFMR-SMD_5P-L3.8-W3.8-P1.27-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the STCM21T?
SMD-5P,3.8x3.8mm, with 5 pins. Its footprint is drawn on this page.
Where is the STCM21T datasheet?
Sunltech Tech publishes it: the Datasheet link on this page opens it.
Where can I order the STCM21T?
JLCPCB lists it as part C5125528, with 966 in stock; the sellers' links on this page open their listings.
What can replace the STCM21T?
Parts like it in the library: the H2WBC2-1TL by HenryTech, the CX2040LNL by Pulse Elec, the CX2041NL by Pulse Elec and the STC113M+ by Sunltech Tech. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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