CNY17-2S(TB)-V Equivalent & Substitute Parts

Part Overview

The CNY17-2S(TB)-V is an optoisolator transistor with base output manufactured by Everlight Electronics Co Ltd. This component provides 5000Vrms isolation with a single channel configuration in a 6-SMD surface mount package. The device is classified as Active status and is RoHS3 compliant with MSL Level 1 (Unlimited moisture sensitivity).

Substitute parts are identified to address application requirements including packaging format variations (Tube vs. Tape & Reel), current transfer ratio specifications, and inventory availability across the CNY17 series manufactured by Lite-On Inc.

Substiute Parts

CNY17-2S(TB)-V

Everlight Electronics Co LtdIn Stock: 1176CNY17-2S(TB)-V Datasheet

Current PartRFQ

CNY17-1S

Lite-On Inc.In Stock: 2438CNY17-1S Datasheet

SimilarRFQ

CNY17-3S

Lite-On Inc.In Stock: 8636CNY17-3S Datasheet

SimilarRFQ

CNY17-3S-TA

Lite-On Inc.In Stock: 21490CNY17-3S-TA Datasheet

SimilarRFQ

CNY17-3S-TA1

Lite-On Inc.In Stock: 25223CNY17-3S-TA1 Datasheet

SimilarRFQ

CNY17-4S

Lite-On Inc.In Stock: 3802CNY17-4S Datasheet

SimilarRFQ

CNY17-4S-TA1

Lite-On Inc.In Stock: 26690CNY17-4S-TA1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts within the CNY17 series are qualified based on the following criteria:

Isolation Voltage: All substitute parts maintain 5000Vrms isolation voltage, matching the primary requirement.

Channel Configuration: All substitutes provide single-channel operation consistent with the main part.

Output Type: All substitutes feature Transistor with Base output configuration.

Package Format: Substitutes are available in two packaging formats: Tube and Tape & Reel (TR). The CNY17-2S(TB)-V is supplied in standard packaging; Tape & Reel variants (CNY17-3S-TA, CNY17-3S-TA1, CNY17-4S-TA1) are available for high-volume automated assembly.

Current Transfer Ratio (CTR): Substitutes are grouped by CTR performance bands:

• CNY17-1S: 40% - 80% @ 10mA (lower CTR)
• CNY17-3S / CNY17-3S-TA / CNY17-3S-TA1: 100% - 200% @ 10mA (mid-range CTR)
• CNY17-4S / CNY17-4S-TA1: 160% - 320% @ 10mA (higher CTR)

Electrical Compatibility: All substitutes share identical maximum output voltage (70V for Lite-On variants vs. 80V for main part), forward voltage characteristics, saturation voltage, and DC forward current ratings.

Temperature Range: Lite-On substitutes operate -55°C ~ 100°C, compared to the main part's -55°C ~ 110°C upper limit.

Parameter Comparison

Engineering Selection Recommendations

Packaging Selection: Choose Tape & Reel variants (CNY17-3S-TA1, CNY17-4S-TA1) for automated pick-and-place assembly operations. Select Tube packaging (CNY17-1S, CNY17-3S, CNY17-4S) for manual assembly or lower-volume production runs.

Current Transfer Ratio Selection:

• CNY17-1S (40%-80% CTR) is suitable for applications requiring lower gain characteristics.
• CNY17-3S / CNY17-3S-TA / CNY17-3S-TA1 (100%-200% CTR) provides mid-range performance matching typical isolation circuit requirements.
• CNY17-4S / CNY17-4S-TA1 (160%-320% CTR) is specified for applications requiring higher current transfer efficiency.

Temperature Consideration: Applications operating above 100°C require the CNY17-2S(TB)-V (rated to 110°C). All Lite-On substitutes are rated to 100°C maximum.

Output Voltage Consideration: Applications requiring output voltage above 70V must use CNY17-2S(TB)-V (80V maximum). Lite-On variants are limited to 70V maximum output.

Compliance: All parts maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, suitable for standard storage and handling conditions.

Frequently Asked Questions (FAQ)

Q: Can CNY17-1S replace CNY17-2S(TB)-V directly?

A: CNY17-1S is electrically compatible in terms of isolation voltage, package format, and pin configuration. However, the current transfer ratio range (40%-80%) is lower than the main part (63%-125%). Selection depends on circuit design requirements for input-to-output current gain.

Q: What is the difference between CNY17-3S and CNY17-3S-TA?

A: Both parts are identical in electrical specifications and performance. The difference is packaging format: CNY17-3S is supplied in Tube packaging for manual assembly, while CNY17-3S-TA is supplied in Tape & Reel format for automated assembly equipment.

Q: Are CNY17-3S-TA and CNY17-3S-TA1 interchangeable?

A: Yes. Both parts have identical electrical specifications, current transfer ratio ranges (100%-200%), and operating characteristics. The suffix "-TA1" indicates a manufacturing revision or tape configuration variant, but electrical performance is equivalent.

Q: Can I use CNY17-4S in applications requiring the CNY17-2S(TB)-V?

A: CNY17-4S is compatible for isolation voltage, channel count, and package format. The higher current transfer ratio (160%-320%) is suitable if circuit design accommodates increased gain. Operating temperature is limited to 100°C (vs. 110°C for main part) and maximum output voltage is 70V (vs. 80V for main part).

Q: What is the impact of different forward voltage (Vf) specifications?

A: CNY17-2S(TB)-V has Vf of 1.65V maximum, while all Lite-On substitutes specify 1.45V typical. This 0.2V difference affects input LED current requirements and power dissipation in the input circuit. Circuit design must account for this variation in LED drive calculations.

Q: Which substitute offers the best inventory availability?

A: CNY17-3S-TA1 and CNY17-4S-TA1 offer the highest inventory levels (25,200 and 26,600 units respectively) in Tape & Reel packaging. CNY17-3S offers 8,562 units in Tube packaging.

Q: Are all substitutes suitable for high-temperature applications?

A: No. The CNY17-2S(TB)-V operates to 110°C, while all Lite-On substitutes are rated to 100°C maximum. Applications requiring operation above 100°C must use the original CNY17-2S(TB)-V part.