BC237BAlternatives & Equivalent Parts

BC237B is marked OBSOLETE. Compare the equivalents below, check each part's lifecycle, and request a quote on a suitable replacement.

About BC237B

BC237B is a Transistor BJT NPN component manufactured by ON Semiconductor. It comes in a Other package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.

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Specification Comparison

ParameterBC237BSourceWP59EGW
ManufacturerON SemiconductorKingbright
Package TypeOtherOther
Pin Count33
Temperature Range~ 150.0°C-40.0°C ~ 85.0°C
Price$0.0328$0.1346
StockIn StockIn Stock
LifecycleOBSOLETEACTIVE
Electrical Parameters
Manufacturer Package CodeCASE 29-11
Factory Lead Time4 Weeks
YTEOL06
Collector Current-Max (IC)0.1 A
Collector-Emitter Voltage-Max45 V
ConfigurationSINGLECOMMON CATHODE, 2 ELEMENTS
DC Current Gain-Min (hFE)200
JEDEC-95 CodeTO-92
JESD-30 CodeO-PBCY-T3
JESD-609 Codee0
Number of Elements1
Package Body MaterialPLASTIC/EPOXY
Package ShapeROUND
Package StyleCYLINDRICAL
Peak Reflow Temperature (Cel)235
Polarity/Channel TypeNPN
Power Dissipation-Max (Abs)0.35 W
Qualification StatusNot Qualified
Surface MountNONO
Terminal FinishTIN LEAD
Terminal FormTHROUGH-HOLE
Terminal PositionBOTTOM
Transistor ApplicationAMPLIFIER
Transistor Element MaterialSILICON
Transition Frequency-Nom (fT)200 MHz
Pbfree CodeYes
ColorHIGH EFFICIENCY RED/GREEN
Forward Current-Max0.025 A
Forward Voltage-Max2.5 V
Lens TypeDIFFUSED WHITE
Luminous Intensity-Nom60.0 mcd
Mounting FeatureRADIAL MOUNT
Number of Functions1
Optoelectronic Device TypeDUAL COLOR LED
Overall Height8.6 mm
Packing MethodBAG
Peak Wavelength627/565 nm
Reverse Voltage-Max5 V
ShapeROUND
Size5 mm
T-codeT-1 3/4
Terminal Pitch2.54 mm
Viewing Angle30 deg

Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.

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Get one quote covering this alternative for BC237B — response within 24 hours.

Quick Links

WP59EGW

suggested

Why Look for Alternatives?

Finding alternatives for BC237B is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.

When evaluating BC237B replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.

Can't Find What You Need?

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FAQ

What is equivalent to BC237B?

Known equivalents for BC237B include WP59EGW. Contact FindMyChip for a full compatibility analysis for your specific application.

Can I use a different manufacturer's part instead of BC237B?

In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.

How do I verify BC237B alternatives?

Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.