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Best Alternatives to HT7133-1

Package: TO-243AAUMWVoltage Regulators - LinearSeries: 71xxPackage: Tape & Reel (TR) Cut Tape (CT) Digi-Reel®Voltage - Input (Max): 30VVoltage - Output (Min/Fixed): 3.3VVoltage - Output (Max): -

HT7133-1 is a 3.3V low-dropout (LDO) regulator from UMW in a SOT-89-3 package, supporting a wide 30V input and delivering 100mA. This page provides analysis of potential alternatives.

AI replacement insight

Electrical risklow

Low for HT7533-1; high for others due to lower input voltage.

Package risklow

Low for candidates in the same SOT-89-3 package.

Firmware risklow

Not applicable for these simple analog components.

Can it be replaced directly?

Direct replacement for HT7133-1 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

HT7533-1 is the most promising path, offering matching package and electricals, but requires pinout verification.

Main risk

The primary risk is pinout incompatibility, even for parts in the same SOT-89-3 package.

Recommended alternatives

2
HT7533-1 package
HT7533-1

UMW

Needs validationlow risk

Strong functional alternative in the same package with matching key electrical ratings.

View details

Alternative comparison matrix

Feature / factorHT7133-1HT7533-1ME6209A33PGAlt 3Compatibility / risk
PackageSOT-89-3SOT-89-3-SOT-89-3 — Package matches target.
Voltage30V3.3V-3.3V — Output voltage matches target.
Current0.1A0.1A-0.25A — Output current is higher than target.
Pinoutnull3-3 — Pinout not verified; target pin count is missing.

Application & sourcing insights

Questions & answers

Verified drop-in options for HT7133-1 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.