CNY17-2S1(TA)-V Equivalent & Substitute Parts

Part Overview

The CNY17-2S1(TA)-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 part is currently active in production with 894 pieces in stock. Equivalent and substitute parts are identified to support design flexibility, supply chain continuity, and application-specific performance requirements where the main part may have limited availability or where alternative electrical characteristics better suit specific circuit requirements.

Substiute Parts

CNY17-2S1(TA)-V

Everlight Electronics Co LtdIn Stock: 962CNY17-2S1(TA)-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 for the CNY17-2S1(TA)-V are identified from the CNY17 series manufactured by Lite-On Inc. Substitution eligibility is determined by the following critical parameters:

Core Compatibility Criteria:

• Voltage - Isolation: 5000Vrms (all substitutes match)
• Number of Channels: 1 (all substitutes match)
• Output Type: Transistor with Base (all substitutes match)
• Input Type: DC (all substitutes match)
• Mounting Type: Surface Mount (all substitutes match)
• Package / Case: 6-SMD, Gull Wing (all substitutes match)
• Supplier Device Package: 6-SMD (all substitutes match)

Electrical Performance Variations: Substitute parts differ in Current Transfer Ratio ranges, which determine switching speed and gain characteristics. The CNY17-2S1(TA)-V operates at 63%-125% CTR. Substitute parts are grouped by CTR performance:

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

Packaging Variations:

• Tape & Reel (TR) packaging: CNY17-3S-TA, CNY17-3S-TA1, CNY17-4S-TA1
• Tube packaging: CNY17-1S, CNY17-3S, CNY17-4S

All substitute parts maintain compliance with ROHS3 and MSL 1 specifications.

Parameter Comparison

Engineering Selection Recommendations

Substitution Compatibility Assessment:

All listed substitute parts from the CNY17 series are functionally compatible with the CNY17-2S1(TA)-V based on core isolation voltage, channel configuration, output type, and package specifications. Selection among substitutes depends on application-specific Current Transfer Ratio requirements and operating temperature range constraints.

Operating Temperature Consideration: The CNY17-2S1(TA)-V operates to 110°C maximum. All Lite-On substitute parts operate to 100°C maximum. Applications requiring operation above 100°C are limited to the original Everlight part.

Output Voltage Rating: The CNY17-2S1(TA)-V supports 80V maximum output voltage. All Lite-On substitutes support 70V maximum output voltage. Applications requiring output voltages between 70V and 80V require the original part.

Current Transfer Ratio Selection:

• For applications requiring CTR 63%-125%: CNY17-2S1(TA)-V (original) or CNY17-3S series (100%-200% overlaps the upper range)
• For applications requiring lower CTR (40%-80%): CNY17-1S
• For applications requiring higher CTR (160%-320%): CNY17-4S series

Packaging Format:

• Tape & Reel (TR) format: CNY17-3S-TA, CNY17-3S-TA1, CNY17-4S-TA1 (high-volume production)
• Tube format: CNY17-1S, CNY17-3S, CNY17-4S (lower-volume or prototype applications)

Compliance Status: All parts maintain ROHS3 compliance and MSL 1 (unlimited moisture sensitivity level). No compliance restrictions apply to substitution.

Frequently Asked Questions (FAQ)

Q1: Can CNY17-3S-TA1 directly replace CNY17-2S1(TA)-V in production?

A: CNY17-3S-TA1 is mechanically and electrically compatible for most applications. Both parts share identical isolation voltage (5000Vrms), channel count (1), output type (transistor with base), and 6-SMD package configuration. However, verify that the application tolerates the lower maximum output voltage (70V vs. 80V) and maximum operating temperature (100°C vs. 110°C). Current Transfer Ratio differs (100%-200% vs. 63%-125%), which affects switching gain characteristics.

Q2: What is the difference between CNY17-3S-TA and CNY17-3S-TA1?

A: Both parts are electrically identical with 100%-200% CTR and identical electrical specifications. The primary difference is packaging format designation (TA vs. TA1), which may reflect manufacturing date codes or supplier lot tracking. Both are supplied in Tape & Reel format and are functionally interchangeable.

Q3: Why does CNY17-2S1(TA)-V have higher maximum output voltage (80V) than substitute parts (70V)?

A: Output voltage rating is determined by the transistor output stage design. The CNY17-2S1(TA)-V is rated for 80V maximum, while the Lite-On CNY17 series variants are rated for 70V maximum. This is a fixed design characteristic and cannot be changed through substitution. Applications requiring 70V-80V operation must use the original CNY17-2S1(TA)-V.

Q4: Which substitute part has the highest inventory availability?

A: CNY17-4S-TA1 has the highest inventory at 26,600 pieces, followed by CNY17-3S-TA1 at 25,200 pieces. Both are supplied in Tape & Reel format suitable for high-volume production.

Q5: Can CNY17-1S be used where CNY17-2S1(TA)-V is specified?

A: CNY17-1S is mechanically compatible but has significantly lower Current Transfer Ratio (40%-80% vs. 63%-125%). This lower gain may result in reduced switching speed or increased input current requirements. Use only if circuit design accommodates lower CTR performance. Electrical isolation, package, and mounting type are compatible.

Q6: What is the impact of different Current Transfer Ratio ranges on circuit performance?

A: Current Transfer Ratio determines the ratio of output collector current to input LED current. Higher CTR (CNY17-4S at 160%-320%) provides greater switching gain and faster response with lower input current. Lower CTR (CNY17-1S at 40%-80%) requires higher input current for equivalent output switching. Mid-range CTR (CNY17-3S at 100%-200%) provides balanced performance. Select based on input drive capability and output current requirements.

Q7: Are all substitute parts ROHS3 compliant?

A: Yes. The CNY17-2S1(TA)-V and all listed substitute parts (CNY17-1S, CNY17-3S, CNY17-3S-TA, CNY17-3S-TA1, CNY17-4S, CNY17-4S-TA1) are ROHS3 compliant. No compliance restrictions apply to substitution.

Q8: What is the difference between Tape & Reel and Tube packaging?

A: Tape & Reel (TR) packaging is used for automated high-volume production with pick-and-place equipment. Tube packaging is used for lower-volume applications or manual assembly. Both formats contain identical components. Select based on production volume and assembly method. CNY17-3S-TA, CNY17-3S-TA1, and CNY17-4S-TA1 are available in Tape & Reel format.

Q9: Can CNY17-2S1(TA)-V be used in applications requiring operation above 100°C?

A: Yes. The CNY17-2S1(TA)-V is rated for -55°C to 110°C operation. All Lite-On substitute parts are rated only to 100°C maximum. For applications requiring 100°C-110°C operation, the original CNY17-2S1(TA)-V is required.

Q10: What are the key parameters that must match for substitution?

A: Core substitution parameters are: Voltage - Isolation (5000Vrms), Number of Channels (1), Output Type (Transistor with Base), Input Type (DC), Mounting Type (Surface Mount), and Package / Case (6-SMD, Gull Wing). All listed substitutes match these parameters. Secondary parameters that may differ include Current Transfer Ratio, maximum output voltage, and operating temperature range. Verify application tolerance for these variations before substitution.