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BCW252

Public Made by Adom

by adom

BC Solid State Relays (MOS Output), DIP-8. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.

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BCW252

BC · Solid State Relays (MOS Output) · DIP-8

BCW252 from BC, in a DIP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 LED+ input LED anode (input +); max continuous IF = 50 mA, peak IFP = 1000 mA (f=100 Hz, 1% duty), forward voltage typ. 1.3 V / max 1.5 V at IF = 10 mA.
2 LED− input LED cathode (input −); reverse voltage max VR = 5 V; operate (turn-on) current typ. 0.5 mA / max 3 mA.
3 NC unconnected No internal connection.
4 NC unconnected No internal connection.
5 OUT2A bidirectional Output switch channel 2, terminal A; PhotoMOS MOSFET switch, max load voltage 60 V AC-peak or DC, max load current 1.1 A, Ron typ. 0.27 Ω / max 0.7 Ω at IF = 5 mA.
6 OUT2B bidirectional Output switch channel 2, terminal B; PhotoMOS MOSFET switch, max load voltage 60 V AC-peak or DC, max load current 1.1 A, off-state leakage max 1 µA at rated VL.
7 OUT1B bidirectional Output switch channel 1, terminal B; PhotoMOS MOSFET switch, max load voltage 60 V AC-peak or DC, max load current 1.1 A, output capacitance typ. 230 pF at VL = 0 V / f = 1 MHz.
8 OUT1A bidirectional Output switch channel 1, terminal A; PhotoMOS MOSFET switch, max load voltage 60 V AC-peak or DC, max load current 1.1 A, peak load current 2.5 A (100 ms, 1 shot).

Key specifications

Parameter Value
Manufacturer BC
Package DIP-8
Category Optoisolators
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Operating Temperature TOPR -40 85 ℃ 2
Storage Temperature TSTG -40 100 ℃ 2
Continuous LED Current IF 50 mA 2
Peak LED Current IFP 1000 mA f=100Hz,Duty=1% 2
LED Reverse Voltage VR 5 V 2
Input Power Dissipation PIN 75 mW 2
Load Voltage VL 60 V AC peak or DC 2
Load Current IL 1.1 A 2
Peak Load Current IPEAK 2.5 A 100ms,1shot 2
Output Power Dissipation POUT 800 mW 2
Total Allowable Power Dissipation PT 850 mW 2
I/O Breakdown Voltage VI/O 3750 Vrms 2
LED Forward Voltage VF 1.3 1.5 V IF=10mA 2
Operation LED Current IF ON 0.5 3 mA 2
Recovery LED Voltage VF OFF 0.5 V 2
On-Resistance RON 0.27 0.7 Ω IF=5mA,IL=Rating, within 1 sec. 2
Off-State Leakage Current ILEAK 1 µA VL=Rating 2
Turn-On Time TON 1.5 5 ms IF=5mA,IL=100mA 2
Turn-Off Time TOFF 0.05 0.5 ms 2
I/O Insulation Resistance RI/O 1000 MΩ DC500V 2
Output Capacitance COUT 230 pF VL=0V,f=1MHz 2
I/O Capacitance CI/O 1.8 pF f=1MHz 2

CAD (KiCad official)

  • Symbol: BCW252
  • Footprint: Package_DIP:DIP-8_W7.62mm
  • 3D model: DIP-8 (KiCad packages3D, STEP)
  • 3D model files: bcw252-etched.step / bcw252-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bcw252.step / bcw252.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: BC datasheet (3 pp, sha256 90faac752ebc33e9, retrieved 2026-10-21, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF