
TECH PUBLIC
A functional alternative in the same package, but with a lower power rating that requires engineering review.
BV-D505ZC is a 5V bidirectional TVS diode in a SOD-523 package, offering 100W surge protection. When seeking alternatives, matching the bidirectional polarity, 5V working voltage, and low clamping voltage is critical.
Candidates have lower power ratings. Clamping voltage must be verified.
All viable candidates share the same SOD-523 package.
Multiple manufacturers produce similar parts in this category.
No direct, fully equivalent replacement has been identified. All candidates require review, primarily for differences in power rating.
Consider TPPESD5V0S1BB or TPESD5B5.0ST1G if a lower power rating (approx. 63W vs 100W) is acceptable for your application.
The main risk is using a substitute with a lower power rating, which could compromise circuit protection under high surge conditions.

TECH PUBLIC
A functional alternative in the same package, but with a lower power rating that requires engineering review.
| Feature / factor | BV-D505ZC | TPESD5B5.0ST1G | TPPESD5V0S1BB | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOD-523 | SOD-523 | SOD-523 | SOD-523 — Same package and pin count.; TPPESD5V0S1BB: Same package and pin count. | |
| Polarity Or Type | Bi-directional | Bi-directional | Bi-directional | Bi-directional — Polarity matches target.; TPPESD5V0S1BB: Polarity matches target. | |
| Voltage | 5.0V | 5.0V | 5.0V | 5.0V — Working voltage matches.; TPPESD5V0S1BB: Working voltage matches. | |
| Power | 100W | Est. ~63W (7A*9V) | Est. ~63W (7A*9V) | Est. ~63W (7A*9V) — Implied power is lower than target.; TPPESD5V0S1BB: Implied power is lower than target. | |
| Capacitance | 15 pF | 15 pF | 15 pF | 15 pF — Junction capacitance matches.; TPPESD5V0S1BB: Junction capacitance matches. |
TPPESD5V0S1BB and TPESD5B5.0ST1G are functional alternatives in the same package, but have a lower power rating. Verify your circuit's peak surge requirements before substitution.