
Xinghua Huayu Electronics Co., Ltd.
HYG-7525A-5027 is the closest rated SMD buzzer candidate, but pinout and size need review.
HYG-8503A-5027 is a 5V SMD passive buzzer. The closest listed candidate is electrically similar but still needs pinout and footprint review.
Vp-p basis must match the circuit drive.
Body and pad dimensions are missing.
Passive buzzer drive may need timing check.
Lifecycle field is not explicit.
No pin-compatible replacement is confirmed from the supplied data.
Review HYG-7525A-5027 first, then verify footprint, pinout, polarity, and drive waveform.
Mechanical and pinout evidence is incomplete.

Xinghua Huayu Electronics Co., Ltd.
HYG-7525A-5027 is the closest rated SMD buzzer candidate, but pinout and size need review.
| Feature / factor | HYG-8503A-5027 | HYG-7525A-5027 | Alt 2 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SMD, dims missing | SMD, dims missing | SMD, dims missing — mounting only matches | ||
| Pinout | 2 pins | missing | missing — no pin count | ||
| Voltage | 5V, 4-6V | 5Vp-p, 4-6Vp-p | 5Vp-p, 4-6Vp-p — basis differs | ||
| Current | 90mA max | 90mA max | 90mA max — same limit | ||
| Temperature | -20~60C | -20~60C | -20~60C — same range | ||
| Resistance | 30Ω±5 | 30Ω±5 | 30Ω±5 — same coil |
HYG-7525A-5027 is the closest listed candidate by voltage, SPL, current, coil resistance, and temperature.