CNY17-2S(TA) Equivalent & Substitute Parts

Part Overview

The CNY17-2S(TA) 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 designed for applications requiring galvanic isolation between input and output circuits with transistor-based output control.

The CNY17-2S(TA) is an active product with full RoHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified based on matching isolation voltage, channel configuration, output type, package format, and operating temperature range. Substitute parts from Vishay Semiconductor Opto Division offer comparable or enhanced electrical characteristics within the same product family.

Substiute Parts

CNY17-2S(TA)

Everlight Electronics Co LtdIn Stock: 728CNY17-2S(TA) Datasheet

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CNY17-1X007T

Vishay Semiconductor Opto DivisionIn Stock: 12712CNY17-1X007T Datasheet

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CNY17-2X007T

Vishay Semiconductor Opto DivisionIn Stock: 2066CNY17-2X007T Datasheet

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CNY17-2X017T

Vishay Semiconductor Opto DivisionIn Stock: 8438CNY17-2X017T Datasheet

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CNY17-3X007

Vishay Semiconductor Opto DivisionIn Stock: 2307CNY17-3X007 Datasheet

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CNY17-3X007T

Vishay Semiconductor Opto DivisionIn Stock: 3499CNY17-3X007T Datasheet

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CNY17-3X017

Vishay Semiconductor Opto DivisionIn Stock: 4279CNY17-3X017 Datasheet

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CNY17-3X017T

Vishay Semiconductor Opto DivisionIn Stock: 1723CNY17-3X017T Datasheet

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CNY17-4X007T

Vishay Semiconductor Opto DivisionIn Stock: 35417CNY17-4X007T Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CNY17-2S(TA) are selected based on the following critical parameters that determine functional compatibility:

Primary Matching Criteria:

• Voltage - Isolation: 5000Vrms (all substitutes match)
• Number of Channels: 1 (all substitutes match)
• Output Type: Transistor with Base (all substitutes match)
• Package / Case: 6-SMD, Gull Wing (all substitutes match)
• Mounting Type: Surface Mount (all substitutes match)
• Operating Temperature: -55°C ~ 110°C (all substitutes match)
• Input Type: DC (all substitutes match)

Secondary Compatibility Factors:

• Current Transfer Ratio: Substitutes are grouped by CTR performance bands (40-80%, 63-125%, 100-200%, 160-320%)
• Voltage - Output (Max): CNY17-2S(TA) supports 80V; Vishay substitutes support 70V maximum
• Vce Saturation: CNY17-2S(TA) 300mV maximum; Vishay substitutes 400mV maximum
• Turn On / Turn Off Time: CNY17-2S(TA) 10µs/9µs; Vishay substitutes 3µs/2.3µs (faster)
• Packaging Format: Tape & Reel (TR), Cut Tape (CT) & Digi-Reel®, or Tube

All substitute parts maintain RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Matching CTR Range):

CNY17-2X007T and CNY17-2X017T from Vishay Semiconductor Opto Division provide identical current transfer ratio specifications (63% to 125% @ 10mA) as the CNY17-2S(TA). Both are available in Tape & Reel packaging and maintain full RoHS3 compliance. The primary trade-off is reduced maximum output voltage (70V versus 80V) and increased Vce saturation (400mV versus 300mV), offset by faster switching times (3µs/2.3µs versus 10µs/9µs).

Higher CTR Performance:

CNY17-3X007, CNY17-3X007T, CNY17-3X017, and CNY17-3X017T offer elevated current transfer ratio performance (100% to 200% @ 10mA). These parts are suitable for applications requiring higher input-to-output current gain. Tape & Reel variants (CNY17-3X007T, CNY17-3X017T) are available for automated assembly processes.

Maximum CTR Performance:

CNY17-4X007T delivers the highest current transfer ratio range (160% to 320% @ 10mA) and is available in Cut Tape & Digi-Reel® packaging with the largest inventory (35,400 pcs). This variant is appropriate for applications demanding maximum optical coupling efficiency.

Lower CTR Performance:

CNY17-1X007T provides the lowest current transfer ratio range (40% to 80% @ 10mA) and is available in Cut Tape & Digi-Reel® packaging. This variant is suitable for applications with higher input current availability.

All substitute parts maintain the required 5000Vrms isolation voltage, single-channel configuration, transistor-with-base output type, 6-SMD gull wing package, and -55°C to 110°C operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can CNY17-2X007T directly replace CNY17-2S(TA) in existing designs?

A: CNY17-2X007T is functionally compatible with CNY17-2S(TA) for applications where the maximum output voltage requirement does not exceed 70V and Vce saturation of 400mV is acceptable. Both parts share identical current transfer ratio specifications (63-125% @ 10mA), isolation voltage (5000Vrms), channel count (1), output type (transistor with base), and package format (6-SMD gull wing). The faster switching times of CNY17-2X007T (3µs/2.3µs versus 10µs/9µs) may improve circuit performance in high-frequency applications.

Q: What is the difference between Tape & Reel and Cut Tape & Digi-Reel® packaging?

A: Tape & Reel (TR) packaging is supplied on continuous tape wound on a reel, suitable for high-volume automated pick-and-place assembly. Cut Tape (CT) & Digi-Reel® packaging provides the same components on cut tape segments or alternative reel formats. Both formats contain identical components; packaging selection depends on assembly equipment compatibility and order quantity requirements.

Q: Why do Vishay substitutes have lower maximum output voltage (70V) compared to CNY17-2S(TA) (80V)?

A: The maximum output voltage specification reflects the rated breakdown voltage of the output transistor. While CNY17-2S(TA) supports 80V, all Vishay CNY17 variants in this comparison are rated for 70V maximum. Applications operating below 70V output voltage are unaffected by this difference. Applications requiring output voltages between 70V and 80V must retain the CNY17-2S(TA).

Q: How do current transfer ratio (CTR) specifications affect component selection?

A: Current transfer ratio defines the ratio of output collector current to input LED current. Higher CTR values (CNY17-3 and CNY17-4 series) require less input current to achieve the same output current, improving input circuit efficiency. Lower CTR values (CNY17-1 series) require higher input current but may provide more stable performance in certain circuit topologies. Selection depends on input current availability and output current requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The CNY17-2S(TA) and all listed Vishay substitute parts (CNY17-1X007T, CNY17-2X007T, CNY17-2X017T, CNY17-3X007, CNY17-3X007T, CNY17-3X017, CNY17-3X017T, CNY17-4X007T) are RoHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Q: What is the significance of the "X007" and "X017" designations in Vishay part numbers?

A: The "X007" and "X017" suffixes indicate different internal lead frame or die configurations within the same electrical specification band. These designations do not affect electrical performance or compatibility; they represent manufacturing variants. Both configurations deliver identical electrical characteristics for the specified CTR range.

Q: Can CNY17-3X007T be used in place of CNY17-2S(TA) if the application only requires lower input current?

A: CNY17-3X007T can be used if the application circuit is designed to accommodate the higher current transfer ratio (100-200% @ 10mA). The higher CTR means less input current is required to drive the output transistor. However, if the existing circuit is optimized for the CNY17-2S(TA) CTR range (63-125%), the higher CTR of CNY17-3X007T may cause excessive output current or require circuit redesign to limit input current.

Q: What are the switching time implications when substituting CNY17-2S(TA) with Vishay variants?

A: CNY17-2S(TA) has turn-on and turn-off times of 10µs and 9µs respectively. All Vishay substitutes offer faster switching (3µs turn-on, 2.3µs turn-off). In applications with switching frequencies below 50 kHz, this difference is negligible. In higher-frequency applications, the faster Vishay variants reduce propagation delay and may improve circuit timing performance.