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SS34alternatives & cross reference

1 Chinese-brand replacement candidate for SS34 (Vishay) in Discrete semiconductors — each labeled with its verification level and parameter differences. Shenzhen sourcing, quote in 24 hours.

SS34

Yangjie · Discrete semiconductors

VerifiedFAE reviewed
Same standard partPin-compatibleUpdated 2026-10-28Vendor document
ParameterSS34SS34Engineering note
Operating junction temperature range-55 °C to +150 °C-55 °C to +125 °CThe target has a 25 °C lower maximum junction temperature.
Non-repetitive forward surge current100 A70 AThe target provides reduced single-cycle surge margin.
Package description in the existing seedSMC (DO-214AB)SMC (DO-214AB)The prior seed note incorrectly called the package SMA; both exact datasheets specify SMC.

FAE documentary review accepted with thermal and surge boundaries: both exact SS34 parts are 3 A / 40 V Schottky rectifiers in SMC (DO-214AB) with a 0.50 V maximum forward voltage at 3 A and the cathode indicated by the band. The target reduces maximum junction temperature from +150 C to +125 C and non-repetitive surge current from 100 A to 70 A. Applications must remain within the target thermal and inrush limits. Document review only; not bench, reliability or production qualified.

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Disclaimer

Cross-reference suggestions for SS34 are provided for engineering convenience and are based on published specifications, vendor documents, or parametric analysis as labeled on each entry. They do not constitute an endorsement by, or an affiliation with, Vishay, and they are not a guarantee of suitability for any specific application. Always validate alternatives against both manufacturers' current datasheets and your own qualification process before production use.