BDR6120S
Ningbo Songle Relay Co., Ltd.
Needs validationlow risk
A potential pin-compatible upgrade with higher current (1A) and a wider voltage range (2.2V-7.5V).
Best Alternatives to FM116C
FM116C is a common SOT23-6 H-bridge motor driver for low-voltage applications. Several alternatives exist with similar or improved performance, but careful review of pinout and electrical parameters is required.
AI replacement insight
Electrical risklow
Many alternatives offer superior voltage and current ratings.
Package risklow
SOT23-6 is a standard package with high availability.
Firmware riskmedium
Most use standard INA/INB control, but some alternatives have different interfaces.
Can it be replaced directly?
Direct replacement for FM116C should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
Upgrade to a higher-current driver like BDR6120S or MX113H after verifying pinout from the datasheet.
Main risk
The main risk is assuming pin-for-pin compatibility without datasheet verification, which could lead to circuit failure.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | FM116C | BDR6120S | MX113H | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOT23-6 | SOT23-6 | SOT23-6 | SOT23-6 — Package matches.; MX113H: Package matches. | |
| Voltage | 2.5 V to 5 V | 2.2V to 7.5V | 2V to 8V | 2.2V to 7.5V / 2V to 8V — Wider operating voltage range.; MX113H: Wider operating voltage range. | |
| Current | 400mA / 600mA | 1A / 2.5A | 1A / 1.5A | 1A / 2.5A / 1A / 1.5A — Significantly higher continuous and peak current.; MX113H: Higher continuous and peak current. | |
| Temperature | -20 °C to +85 °C | -20°C to 85°C | - | -20°C to 85°C — Operating temperature range matches. | |
| Interface | CMOS Input | PWM (INA-INB) | - | PWM (INA-INB) — Likely compatible, but requires pinout verification. | |
| Standby Current | 0.1 uA | - | <0.1uA | <0.1uA — Standby current matches. |
Application & sourcing insights
Questions & answers
Verified drop-in options for FM116C are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.