
Overview
The BL3H4B is an uncategorised made by Galaxy Microelectronics in a SSOP-4 package with 5 pins.
PCBKit's library has its footprint (Package_SO:SSOP-4_4.4x2.6mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C41425721).
Symbol
The library has no symbol for this part yet.
Footprint
Parameters
13- Current Transfer Ratio (CTR) Maximum/Saturation Value
- 300%
- Current Transfer Ratio (CTR) Minimum
- 20%
- Fall time
- 18us
- Forward Current(If)
- 50mA
- Input type
- DC
- Isolation Voltage(Vrms)
- 3.75kV
- Load Voltage
- 80V
- Operating Temperature
- -55℃~+100℃
- Output Current
- 50mA
- Rise time
- 18us
- Total Power Dissipation(Pd)
- 200mW
- Vce Saturation(VCE(sat))
- 100mV@20mA,1mA
- Voltage - Forward(Vf)
- 1.2V
Order codes
1- BL3H4BLCSC C41425721
Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/galaxy-microelectronics/BL3H4B" title="BL3H4B in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/galaxy-microelectronics/BL3H4B.jpg" alt="BL3H4B" width="1200" height="900">[](https://pcbkit.io/parts/galaxy-microelectronics/BL3H4B)Questions
Is there a KiCad symbol and footprint for the BL3H4B?
Yes. the footprint Package_SO:SSOP-4_4.4x2.6mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the BL3H4B?
SSOP-4, with 5 pins. Its footprint is drawn on this page.
Where is the BL3H4B datasheet?
Galaxy Microelectronics publishes it: the Datasheet link on this page opens it.
Where can I order the BL3H4B?
JLCPCB lists it as part C41425721, with 0 in stock; the sellers' links on this page open their listings.
What can replace the BL3H4B?
Parts like it in the library: the PC3H7C by AOTE, the PS2811-1(AT) by AOTE, the BL3H7C by Galaxy Microelectronics and the BL3H4A by Galaxy Microelectronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Parts like it
8PC3H7C
SSOP-4UncategorisedAOTEPS2811-1(AT)
SSOP-4UncategorisedAOTEBL3H7C
SSOP-4UncategorisedGalaxy MicroelectronicsBL3H4A
SSOP-4UncategorisedGalaxy MicroelectronicsIS280B-N
SSOP-4- LCDH ROHSISOMICRONUncategorisedIS280C-N
SSOP-4UncategorisedISOMICRONPS2805-1-A
SSOP-4UncategorisedNECQX3H4A-CUH-S
SSOP-4UncategorisedNQUNXIN