HT7833-A
EVVO
Needs validationhigh risk
Matches low quiescent current but has a much lower max input voltage (12V vs 40V).
Best Alternatives to GM7333TB
GM7333TB is a 40V, 200mA LDO with a very low 5µA quiescent current in a SOT89 package. Finding a direct replacement is difficult due to its unique combination of high input voltage and low power consumption.
AI replacement insight
Electrical riskhigh
All candidates have significantly lower max input voltage or higher quiescent current.
Package riskhigh
Most have different packages; the one with a similar package has an incompatible pinout.
Can it be replaced directly?
There is no direct, drop-in replacement for the GM7333TB among common alternatives. All candidates require significant engineering review and likely a board redesign.
Best replacement path
Requires board redesign. Select a part based on the most critical parameter for the application: either high Vin or low Iq, as no single part matches both.
Main risk
Critical mismatches in maximum input voltage and quiescent current.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | GM7333TB | HT7833-A | CJA1117B-3.3 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOT89-3(B) | SOT-89 option exists | - | SOT-89-3L — Form factor is compatible, but pinout is not. | |
| Voltage | 40V | 12V | - | 15V — Max input voltage is significantly lower. | |
| Quiescent Current | 5µA | 2µA | - | ~5mA — Quiescent current is orders of magnitude higher. | |
| Current | 0.2A | 0.45A | - | 1.0A — Higher output current capability. | |
| Pinout | GND, VIN, VOUT | - | GND, VOUT, VIN | GND, VOUT, VIN — Pinout is incompatible. VIN and VOUT are swapped. |
Application & sourcing insights
Questions & answers
No direct drop-in replacement has been identified. Alternatives like CJA1117B-3.3 have a similar package but different pinout and electrical ratings. Thorough review of application requirements is essential.