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Best Alternatives to HTLP181GB-S

Package: SOP-4HXY MOSFETPhotovoltaic OutputIsolation Voltage: 3750 VrmsCTR Range: 100-600%Collector-Emitter Voltage (VCEO): 80 VOutput Current: 50 mAOperating Temperature: 0°C to +70°C

Finding a substitute for the HTLP181GB-S SOP-4 optocoupler involves matching key electrical specs. Strong alternatives like the LITEON LTV-217 series offer compatible performance with an improved temperature range.

AI replacement insight

Electrical risklow

Strong candidates match or exceed voltage ratings. CTR range should be verified.

Package risklow

All viable candidates use the same SOP-4 package, but pinout should be confirmed.

Sourcing risklow

Candidates from major manufacturers like LITEON and UMW are generally well-distributed.

Can it be replaced directly?

Yes, several potential replacements exist, but require datasheet review. LTV217TP1B-V-G is a strong candidate.

Best replacement path

LTV217TP1B-V-G and LTV-217-TP1-B-G from LITEON are the strongest alternatives, matching key electrical specs and package.

Main risk

The primary risk is ensuring the replacement's Current Transfer Ratio (CTR) meets the application's gain requirements.

Recommended alternatives

3
LTV-217-TP1-B-G package
LTV-217-TP1-B-G

LITEON

Needs validationlow risk

A strong alternative with matching key electrical parameters and a wider temperature range.

View details

Alternative comparison matrix

Feature / factorHTLP181GB-SLTV-217-TP1-B-GLTV217TP1B-V-GPS2501-SCompatibility / risk
PackageSOP-4SOP-4SOP-4SOP-4SOP-4 — Same package and pin count.; LTV217TP1B-V-G: Same package and pin count.; PS2501-S: Same package and pin count.
Voltage80 V80 V80 V80 V80 V — Collector-Emitter Voltage (VCEO) matches.; LTV217TP1B-V-G: Collector-Emitter Voltage (VCEO) matches.; PS2501-S: Collector-Emitter Voltage (VCEO) matches.
Current100% - 600%130% - 260%130% - 260%80% - 600%130% - 260% / 80% - 600% — Current Transfer Ratio (CTR) range is within target's range.; LTV217TP1B-V-G: Current Transfer Ratio (CTR) range is within target's range.; PS2501-S: Current Transfer Ratio (CTR) minimum is lower.
Temperature0°C to +70°C-55°C to +110°C-55°C to +110°C-55°C to +100°C-55°C to +110°C / -55°C to +100°C — Wider operating temperature range.; LTV217TP1B-V-G: Wider operating temperature range.; PS2501-S: Wider operating temperature range.

Application & sourcing insights

Questions & answers

Verified drop-in options for HTLP181GB-S 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.