Best Alternatives to LTV-356T-C

Package: 4-SOPLITEONPhotovoltaic OutputIsolation Voltage: 3750 VrmsCTR Rank: C (200-400%)Collector-Emitter Voltage (VCEO): 80 VForward Current (IF): 50 mAPackage Type: Mini-flat (4-pin)

LTV-356T-C is a popular 4-SOP optocoupler with an 80V VCEO and a 200-400% CTR. Alternatives exist but require careful review of the Current Transfer Ratio (CTR) and Collector-Emitter Voltage (VCEO).

AI replacement insight

Electrical riskmedium

Current Transfer Ratio (CTR) variation is the main concern and requires validation.

Package risklow

Several alternatives exist in the same 4-SOP package family.

Can it be replaced directly?

No guaranteed drop-in replacement was found. The closest is LTV-356T, which has a wider CTR range and requires testing.

Best replacement path

Use LTV-356T, the base part from the same manufacturer, and verify circuit gain.

Main risk

Electrical mismatch, primarily the Current Transfer Ratio (CTR), which can affect signal integrity and loop stability.

Recommended alternatives

2
LTV-356T package
LTV-356T

LITEON

Needs validationmedium risk

Same family from LITEON with a wider CTR range (50-600%) that fully includes the target's 200-400% range.

View details

Alternative comparison matrix

Feature / factorLTV-356T-CLTV-356TVOMA617A-8X001TAlt 3Compatibility / risk
Package4-SOP (Mini-flat)4-SOP (Mini-flat)4-SOP4-SOP (Mini-flat) — Package matches target.; VOMA617A-8X001T: Package appears compatible.
Voltage80 V80 V3750 VRMS80 V / 3750 VRMS — VCEO matches.; VOMA617A-8X001T: Isolation voltage matches.
Ctr200% - 400%50% - 600%130% - 260%50% - 600% / 130% - 260% — Wider CTR range fully contains target's range.; VOMA617A-8X001T: CTR range is lower and only partially overlaps.
Temperature-55°C to +110°C-55°C to +110°C-40°C to +110°C-55°C to +110°C / -40°C to +110°C — Operating temperature range matches.; VOMA617A-8X001T: Lower operating temperature limit is higher.

Application & sourcing insights

Questions & answers

The base part, LTV-356T from LITEON, is a strong functional alternative as it has the same key ratings but a wider CTR range that includes the target's specification.