P6SMB6.8A
FTR Qiaoguang
Needs validationmedium risk
P6SMB6.8A is a same-package 600W TVS candidate with slightly weaker surge limits.
Best Alternatives to SMBJ6.0A
SMBJ6.0A is a 600W unidirectional SMB TVS diode. Available alternates need electrical review because clamp and pulse-current limits differ.
AI replacement insight
Electrical riskmedium
closest parts still differ in Vrwm/Vc/Ipp
Package risklow
kept parts list SMB package
Firmware risklow
passive TVS, no firmware
Sourcing riskmedium
some lifecycles are '-'
Can it be replaced directly?
No verified pin-compatible replacement is proven from the provided data.
Best replacement path
Review P6SMB6.8A first, then SMBJ6.8A after resolving datasheet conflicts.
Main risk
Different standoff, clamp voltage, and pulse current can reduce protection margin.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | SMBJ6.0A | P6SMB6.8A | SMBJ6.8A | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | DO-214AA SMB | DO-214AA SMB | DO-214AA SMB | DO-214AA SMB — same package text; SMBJ6.8A: same package text | |
| Pinout | 2 pins | 2 pins | 2 pins | 2 pins — pin count only; SMBJ6.8A: pin count only | |
| Voltage | 6.0V; Vc10.3V | 5.8V; Vc10.5V | 5.0/5.8V; Vc9.2/10.5V | 5.8V; Vc10.5V / 5.0/5.8V; Vc9.2/10.5V — lower Vrwm, higher clamp; SMBJ6.8A: ES values conflict | |
| Current | 58.25A | 57.1A | 65.3/57.1A | 57.1A / 65.3/57.1A — slightly lower Ipp; SMBJ6.8A: ES values conflict | |
| Power | 600W | 600W | 600W | 600W — same Ppp; SMBJ6.8A: same Ppp |
Application & sourcing insights
Questions & answers
P6SMB6.8A is the closest kept candidate, but it is a review-required parametric downgrade risk.