CNY17F-2S(TA)-V Equivalent & Substitute Parts

Part Overview

The CNY17F-2S(TA)-V is an optoisolator with transistor output manufactured by Everlight Electronics Co Ltd. This component provides 5000Vrms isolation voltage in a 6-SMD surface mount package with a current transfer ratio of 63% to 125% at 10mA. The part is Active status and RoHS3 compliant.

Substitute parts are necessary when the primary part experiences supply constraints, extended lead times, or when design flexibility permits selection from alternative manufacturers offering equivalent electrical and mechanical characteristics within the same product category.

Substiute Parts

CNY17F-2S(TA)-V

Everlight Electronics Co LtdIn Stock: 1098CNY17F-2S(TA)-V Datasheet

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CNY17F-1S

Lite-On Inc.In Stock: 1918CNY17F-1S Datasheet

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CNY17F-2S

Lite-On Inc.In Stock: 1796CNY17F-2S Datasheet

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CNY17F-3S

Lite-On Inc.In Stock: 2933CNY17F-3S Datasheet

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CNY17F-4S

Lite-On Inc.In Stock: 2532CNY17F-4S Datasheet

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CNY17F3SM

onsemiIn Stock: 17828CNY17F3SM Datasheet

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CNY17F4SM

Fairchild SemiconductorIn Stock: 2269CNY17F4SM Datasheet

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CNY17F4SR2M

onsemiIn Stock: 6133CNY17F4SR2M Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the CNY17F-2S(TA)-V is based on the following critical parameters that must align for direct replacement:

Primary Substitution Criteria:

• Voltage - Isolation: 5000Vrms or higher
• Number of Channels: 1
• Output Type: Transistor
• Current Transfer Ratio (Min): 63% @ 10mA or higher
• Current Transfer Ratio (Max): 125% @ 10mA or higher
• Package / Case: 6-SMD, Gull Wing
• Mounting Type: Surface Mount
• Vce Saturation (Max): 300mV or lower

Secondary Compatibility Parameters:

• Voltage - Output (Max): 70V or higher
• Operating Temperature Range: Must encompass application requirements
• RoHS3 Compliance: Required for regulatory alignment

Substitute parts are grouped into two categories:

Group 1 - Direct Electrical Equivalents (5000Vrms Isolation): CNY17F-1S, CNY17F-2S, CNY17F-3S, and CNY17F-4S from Lite-On Inc. These parts maintain the 5000Vrms isolation voltage specification and differ primarily in current transfer ratio grades.

Group 2 - Functional Equivalents (4170Vrms Isolation): CNY17F3SM, CNY17F4SM, and CNY17F4SR2M from onsemi and Fairchild Semiconductor. These parts operate at 4170Vrms isolation voltage, which is lower than the primary part but remain within the optoisolator transistor output category with compatible electrical performance for many applications.

Parameter Comparison

Engineering Selection Recommendations

Group 1 Substitutes - Lite-On CNY17F Series (5000Vrms):

CNY17F-2S from Lite-On Inc. is the closest electrical equivalent to the CNY17F-2S(TA)-V. Both parts share identical current transfer ratio specifications (63% to 125% @ 10mA), 5000Vrms isolation voltage, and 300mV maximum Vce saturation. The primary difference is packaging format (Tube versus Tape & Reel) and manufacturer. This part is RoHS3 compliant and REACH unaffected, suitable for direct substitution in applications requiring the specified current transfer ratio grade.

CNY17F-1S offers lower current transfer ratio (40% to 80% @ 10mA) and is suitable only when lower gain characteristics are acceptable. CNY17F-3S and CNY17F-4S provide higher current transfer ratios (100-200% and 160-320% respectively) and are suitable when higher gain is required or beneficial for circuit operation.

All Lite-On CNY17F variants maintain 5000Vrms isolation, 300mV Vce saturation, and 6-SMD Gull Wing packaging. Operating temperature range is -55°C to 100°C, which is 10°C lower than the primary part at the upper limit.

Group 2 Substitutes - onsemi and Fairchild (4170Vrms):

CNY17F3SM and CNY17F4SM operate at 4170Vrms isolation voltage, approximately 830V lower than the primary specification. These parts are suitable only for applications where 4170Vrms isolation meets design requirements. CNY17F3SM matches the 100-200% current transfer ratio range, while CNY17F4SM provides 160-320% range.

CNY17F4SR2M from onsemi is packaged in Tape & Reel format and provides 160-320% current transfer ratio at 4170Vrms isolation. This part is RoHS3 compliant and REACH unaffected.

All Group 2 parts exhibit 400mV maximum Vce saturation, which is 100mV higher than the primary part. Operating temperature range is -40°C to 100°C, restricting low-temperature operation to -40°C minimum.

Compliance Status:

All substitute parts maintain RoHS3 compliance. Lite-On parts include REACH unaffected status. Fairchild CNY17F4SM does not specify RoHS status in provided data. All parts are classified as EAR99 for export control purposes.

Frequently Asked Questions (FAQ)

Q: Can CNY17F-2S from Lite-On directly replace CNY17F-2S(TA)-V from Everlight?

A: Yes, for applications where the operating temperature range of -55°C to 100°C is acceptable. Both parts share identical electrical specifications: 5000Vrms isolation, 63-125% current transfer ratio @ 10mA, 300mV Vce saturation, and 6-SMD Gull Wing packaging. The primary difference is manufacturer and packaging format (Tube versus Tape & Reel). Verify packaging requirements for your assembly process.

Q: What is the key difference between Group 1 (Lite-On) and Group 2 (onsemi/Fairchild) substitutes?

A: Group 1 parts maintain 5000Vrms isolation voltage matching the primary specification. Group 2 parts operate at 4170Vrms isolation, which is 830V lower. Group 2 parts also exhibit 400mV Vce saturation versus 300mV for Group 1. Select Group 1 for applications requiring 5000Vrms isolation. Select Group 2 only when 4170Vrms isolation meets design requirements and lower Vce saturation is not critical.

Q: Can I use CNY17F-4S instead of CNY17F-2S(TA)-V?

A: CNY17F-4S is electrically compatible in terms of isolation voltage (5000Vrms), package (6-SMD Gull Wing), and Vce saturation (300mV). However, CNY17F-4S provides 160-320% current transfer ratio versus 63-125% for the primary part. Use CNY17F-4S only if your circuit design accommodates higher current transfer ratio. Verify circuit performance with the higher gain specification.

Q: What are the temperature limitations when using Lite-On substitutes?

A: Lite-On CNY17F series parts operate from -55°C to 100°C, which is 10°C lower than the primary part at the upper temperature limit (-55°C to 110°C). If your application requires operation above 100°C, the primary part CNY17F-2S(TA)-V or alternative parts with -55°C to 110°C range must be used.

Q: Are there packaging format differences between substitutes?

A: Yes. The primary part CNY17F-2S(TA)-V is supplied in Tape & Reel (TR) format. Lite-On CNY17F series substitutes are supplied in Tube format. onsemi CNY17F4SR2M is supplied in Tape & Reel format. Verify your assembly equipment compatibility with the packaging format before selection.

Q: What does the current transfer ratio specification mean for substitution?

A: Current transfer ratio (CTR) defines the output current relative to input current. The primary part specifies 63-125% CTR @ 10mA. Substitutes with lower CTR (CNY17F-1S: 40-80%) provide less output current for the same input. Substitutes with higher CTR (CNY17F-4S: 160-320%) provide more output current. Select a substitute with CTR range that matches or exceeds your circuit requirements.

Q: Is RoHS3 compliance maintained across all substitutes?

A: RoHS3 compliance is confirmed for the primary part, all Lite-On CNY17F variants, and onsemi parts (CNY17F3SM, CNY17F4SR2M). Fairchild CNY17F4SM does not specify RoHS status in available data. Verify RoHS compliance requirements for your application before selecting Fairchild parts.

Q: Can I mix different CTR grades in the same circuit?

A: No. Different current transfer ratio grades will produce different output currents for identical input signals. If multiple optoisolators are used in a circuit, maintain consistent CTR grades to ensure predictable circuit behavior. Select all parts from the same CTR grade specification.