CNY17-2S-TA Equivalent & Substitute Parts

Part Overview

The CNY17-2S-TA is an optoisolator transistor with base output manufactured by Lite-On Inc., designed for 5000Vrms isolation applications. This single-channel device provides galvanic isolation in surface mount 6-SMD packaging with gull wing leads. The part is currently active in production with 841 pieces in stock inventory. Substitute parts are identified to address supply availability, inventory levels, or specific performance band requirements while maintaining electrical and mechanical compatibility within the CNY17 series.

Substiute Parts

CNY17-2S-TA

Lite-On Inc.In Stock: 938CNY17-2S-TA Datasheet

Current PartRFQ

CNY17-3-500E

Broadcom LimitedIn Stock: 4769CNY17-3-500E Datasheet

MFR RecommendedRFQ

CNY17-4-500E

Broadcom LimitedIn Stock: 6090CNY17-4-500E Datasheet

MFR RecommendedRFQ

CNY17-2-500E

Broadcom LimitedIn Stock: 1305CNY17-2-500E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution within the CNY17 series is determined by the following fixed parameters that must remain constant across all equivalent and substitute parts:

• Isolation voltage: 5000Vrms
• Number of channels: 1
• Output type: Transistor with Base
• Maximum output voltage: 70V
• Maximum output current: 150mA
• Rise/Fall time: 5µs, 5µs
• Operating temperature range: -55°C to 100°C
• Mounting type: Surface Mount
• Package/Case: 6-SMD, Gull Wing
• Input type: DC
• Vce saturation: 300mV

The substitute parts are grouped into two categories based on Current Transfer Ratio (CTR) performance bands:

Parametric Equivalent (CTR 63-125% @ 10mA): CNY17-2-500E matches the CTR specification of the main part CNY17-2S-TA.

MFR Recommended Substitutes (Higher CTR Performance): CNY17-3-500E (CTR 100-200% @ 10mA) and CNY17-4-500E (CTR 160-320% @ 10mA) provide enhanced current transfer ratio performance while maintaining all other electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), ensuring regulatory and environmental compatibility with the main part CNY17-2S-TA.

CNY17-2-500E is the parametric equivalent, providing identical CTR performance specifications (63-125% @ 10mA) with marginally lower forward voltage (1.4V vs 1.45V). This part is suitable for direct replacement in applications where CTR performance band matching is required.

CNY17-3-500E and CNY17-4-500E are MFR recommended substitutes with enhanced CTR performance bands. These parts are suitable for applications where higher current transfer efficiency is acceptable or beneficial. The higher CTR values (100-200% and 160-320% respectively) indicate improved optical coupling efficiency while maintaining all other electrical and mechanical parameters.

Selection between substitute parts should be based on application requirements for current transfer ratio performance and component availability.

Frequently Asked Questions (FAQ)

Q: Can CNY17-3-500E or CNY17-4-500E be used as direct replacements for CNY17-2S-TA?

A: Yes. All three parts share identical isolation voltage (5000Vrms), output type (Transistor with Base), maximum output voltage (70V), maximum output current (150mA), rise/fall time (5µs, 5µs), operating temperature range (-55°C to 100°C), and package configuration (6-SMD, Gull Wing). The primary difference is the Current Transfer Ratio performance band. Applications designed for CNY17-2S-TA CTR specifications (63-125%) will function with the higher CTR variants, though circuit behavior may differ if CTR-dependent biasing is employed.

Q: What is the difference between CNY17-2-500E and CNY17-3-500E?

A: CNY17-2-500E provides CTR of 63-125% @ 10mA, matching the main part CNY17-2S-TA. CNY17-3-500E provides higher CTR of 100-200% @ 10mA, indicating improved optical coupling efficiency. Both maintain identical electrical and mechanical specifications for isolation voltage, output characteristics, and package configuration.

Q: Are there packaging differences between these parts?

A: CNY17-2S-TA and CNY17-4-500E are supplied in 6-SMD packaging. CNY17-2-500E is supplied in Cut Tape (CT) & Digi-Reel format. CNY17-3-500E is supplied in 6-DIP Gull Wing packaging. All parts use surface mount technology with gull wing lead configuration and are compatible with standard PCB assembly processes.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. CNY17-2-500E, CNY17-3-500E, and CNY17-4-500E are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of CNY17-2S-TA.

Q: Which substitute part should be selected for maximum inventory availability?

A: CNY17-4-500E has the highest inventory level at 6069 pieces in stock, followed by CNY17-3-500E at 4749 pieces, and CNY17-2-500E at 1245 pieces.