ProjectsPricingInsights

Best Alternatives to PC817X2NIPW

Package: 4-DIPSHARPPhotovoltaic OutputIsolation Voltage: 5000 VrmsCTR Rank: B (6.5-13 mA)Collector-Emitter Voltage (VCEO): 80 VForward Current (IF): 50 mAOperating Temperature: -30 to +100 °C

The SHARP PC817X2NIPW is a general-purpose 4-pin DIP phototransistor optocoupler with 5kV isolation, used for signal isolation. Finding a replacement involves matching its CTR, package, and voltage ratings.

AI replacement insight

Electrical risklow

Low for same-series parts, Medium for different CTR or family.

Package riskhigh

High if a non-DIP package is chosen; requires board redesign.

Sourcing risklow

The PC817 series is widely available from multiple vendors.

Can it be replaced directly?

PC817X2NSZ9F is a likely direct replacement, matching package, CTR, and voltage ratings. Pinout verification is recommended.

Best replacement path

Use another PC817X2 series part like PC817X2NSZ9F for the highest chance of compatibility.

Main risk

The main risk is selecting a part with a different Current Transfer Ratio (CTR) bin (e.g., PC817X1 or PC817X3), which can alter circuit behavior.

Recommended alternatives

4
PC817X2NSZ9F package
PC817X2NSZ9F

SHARP

Needs validationlow risk

Likely pin-compatible replacement from the same SHARP PC817 series with matching CTR and package.

View details

Alternative comparison matrix

Feature / factorPC817X2NIPWPC817X2NSZ9FPC817X2NSZWPC817X3YIPWCompatibility / risk
Package4-DIP4-DIP4-DIP4-DIP4-DIP — Identical package and pin count.; PC817X2NSZW: Identical package and pin count.; PC817X3YIPW: Package matches.
VoltageVCEO: 80V, Viso: 5kVVCEO: 80V, Viso: 5kVVCEO: 80V, Viso: 5kVVCEO: 80VVCEO: 80V, Viso: 5kV / VCEO: 350V — Collector-Emitter and Isolation voltages match.; PC817X2NSZW: Collector-Emitter and Isolation voltages match.; PC817X3YIPW: Voltage ratings match.; PC851XNNIP9F: Significantly higher VCEO.
CtrX2 bin (6.5-13%)X2 bin (6.5-13%)X2 bin (6.5-13%)X3 bin (e.g. 10-20mA Ic)X2 bin (6.5-13%) / X3 bin (e.g. 10-20mA Ic) / 40% — Identical Current Transfer Ratio bin.; PC817X2NSZW: Identical Current Transfer Ratio bin.; PC817X3YIPW: Higher CTR may affect gain and stability.; PC851XNNIP9F: Much higher CTR.
Temperature-30°C to +100°C-30°C to +100°C-30°C to +100°C--30°C to +100°C / -25°C to +100°C — Operating temperature range matches.; PC817X2NSZW: Operating temperature range matches.; PC851XNNIP9F: Narrower operating temperature range.
FamilyPC817---PC851 — Different product family.

Application & sourcing insights

Questions & answers

PC817X2NSZ9F and PC817X2NSZW are strong alternatives from the same SHARP PC817 family, offering matching key electrical specifications and package. They are likely pin-compatible replacements.