
UMW
A strong alternative from the same manufacturer with matching key specs and a wider temperature range.
Finding a substitute for the HT7130S LDO involves matching its 3.0V output, 100mA current, and SOT-23 package. Key alternatives exist but require checking pin compatibility and electrical parameters.
Low for HT7530-1; high for others due to voltage mismatches.
Some candidates require selecting a specific package variant (e.g., SOT-23 for HT7530-1).
These are common LDOs available from multiple vendors.
Direct replacement for HT7130S should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Start with Datasheet verified or Strong match candidates for HT7130S, then review parametric alternatives for package and electrical fit.
The primary risk is ensuring the correct package (SOT-23) and pinout for any alternative. Some candidates have different output voltages or lower input voltage ratings.

UMW
A strong alternative from the same manufacturer with matching key specs and a wider temperature range.
| Feature / factor | HT7130S | HT7530-1 | PJ75AL33SA | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOT-23 | SOT-23 variant exists | SOT-23 | SOT-23 variant exists — Requires SOT-23 package variant of HT7530-1.; PJ75AL33SA: Package footprint matches. | |
| Pinout | GND,VIN,VOUT (inferred) | GND,VIN,VOUT | - | GND,VIN,VOUT — Pinout appears identical based on datasheet review. | |
| Voltage | 3.0V | 3.0V | 36V | 3.0V / 36V — Output voltage matches.; PJ75AL33SA: Higher max input voltage provides more margin. | |
| Current | 100mA | 100mA | 100mA | 100mA — Output current matches.; PJ75AL33SA: Output current matches. | |
| Temperature | -25°C to 70°C | -40°C to +85°C | - | -40°C to +85°C — Wider operating range. |
Verified drop-in options for HT7130S 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.