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Taiwan Semiconductor Corporation 1.5SMC51CA V7G — Circuit Protection

1.5SMC51CA V7G TVS Diode, 1500W, 43.6V Standoff, DO-214AB

MPN1.5SMC51CA V7G
Active

Taiwan Semiconductor 1.5SMC series bidirectional Zener TVS diode, 1.5SMC51CA V7G, 1500W peak pulse power, 43.6V standoff, 70.1V clamp, DO-214AB (SMC) package.

$0.6500Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5SMC51CA V7G specifications
ParameterValue
TypeZener
Series1.5SMC
MountingSurface Mount
Voltage - breakdown48.5V
Voltage - clamping (Max) @ ipp70.1V
Voltage - reverse standoff43.6V
Current - peak pulse (10/1000μs)22A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C ~ 150°C (TJ)
PackageTape & Reel (TR)
ApplicationsTelecom
CaseDO-214AB, SMC
Bidirectional channels1

Product details

Surge protection for 43.6V rails

The 1.5SMC51CA V7G: This part is a standard fit for telecom line cards, base station power feeds, and network interface protection where bidirectional clamping is needed — the single bidirectional channel handles both positive and negative transients on a single pair.

When a transient exceeds the minimum breakdown voltage of 48.5V, the device starts conducting and clamps the surge to a maximum of 70.1V.

Package and reflow considerations

Tape & Reel packaging feeds standard pick-and-place lines without a feeder change.

Frequently asked questions

What is the 1.5SMC51CA V7G used for?

This bidirectional Zener TVS diode protects 43.6V DC or AC signal/power rails from transient overvoltage events, clamping surges up to 70.1V at 22A. It is commonly deployed in telecom equipment, base stations, and network interface cards where bidirectional surge protection is required.