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Diotec Semiconductor 1.5SMCJ70A — Circuit Protection

1.5SMCJ70A Zener TVS Diode, 70V Standoff, DO-214AB

MPN1.5SMCJ70A
Active

Diotec Semiconductor 1.5SMCJ70A unidirectional Zener TVS diode, 1500W peak pulse, 70V reverse standoff, 113V clamping @ 13.3A, DO-214AB SMC strip, surface mount.

$0.8704Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5SMCJ70A specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown77.8V
Voltage - clamping (Max) @ ipp113V
Voltage - reverse standoff70V
Current - peak pulse (10/1000μs)13.3A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-50°C~150°C(TJ)
PackageStrip
ApplicationsGeneral Purpose
CaseDO-214AB, SMC
Unidirectional channels1

Product details

Clamping and standoff ratings

The 1.5SMCJ70A: That 113V clamping maximum is the number that matters for downstream protection — the 1500W headline is a thermal rating for the single-event pulse shape, not a voltage setpoint the diode holds under surge. Operating junction temperature runs from -50°C to 150°C, so the part handles the thermal headroom of a protected power-supply or IO line in an enclosed panel without derating concerns up to the rated pulse.

Package and board-level fit

The DO-214AB SMC package is the standard SMB footprint — pin-compatible across most 1500W unidirectional TVS families from multiple brands, so swapping in a second-source alternative at the BOM stage usually requires only a footprint confirmation. Surface-mount termination; the package ships in strip form per the listing. General-purpose application rating means it is suited for IO bus protection, power supply clamping, and rail-to-rail transient suppression — not power-line mains protection, which requires a different peak pulse and repetition duty rating.

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Frequently asked questions

What package does the 1.5SMCJ70A use?

DO-214AB (SMC) in strip packaging, surface-mount termination. The SMB footprint is the industry-standard pin layout for 1500W unidirectional TVS diodes, so compatible alternatives in the same package are widely available from multiple brands.