CNY17F2TM Equivalent & Substitute Parts

Part Overview

The CNY17F2TM is a 4170Vrms optoisolator with transistor output manufactured by onsemi in a 6-DIP through-hole package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The CNY17F2TM provides single-channel isolation with 1 channel configuration, 50mA output current capability, and operates across -40°C to 100°C temperature range.

Substiute Parts

CNY17F2TM

onsemiIn Stock: 675CNY17F2TM Datasheet

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CNY17F2M

Fairchild SemiconductorIn Stock: 5459CNY17F2M Datasheet

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CNY17F2TVM

onsemiIn Stock: 1388CNY17F2TVM Datasheet

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CNY17F-1M

Lite-On Inc.In Stock: 12367CNY17F-1M Datasheet

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CNY17F-2M

Lite-On Inc.In Stock: 12477CNY17F-2M Datasheet

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CNY17F-3M

Lite-On Inc.In Stock: 41112CNY17F-3M Datasheet

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CNY17F-4M

Lite-On Inc.In Stock: 10124CNY17F-4M Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the CNY17F2TM is determined by the following critical parameters:

Mandatory Matching Parameters:

• Number of Channels: 1
• Output Type: Transistor
• Package / Case: 6-DIP
• Mounting Type: Through Hole
• Input Type: DC
• Voltage - Output (Max): 70V
• Vce Saturation (Max): 400mV or lower

Allowable Parameter Variations:

• Voltage - Isolation: 4170Vrms or higher (higher isolation voltage is acceptable)
• Current Transfer Ratio: Range must encompass or exceed the original specification
• Current - Output / Channel: 50mA or higher (higher current capability is acceptable)
• Operating Temperature: Must include the -40°C to 100°C range or extend it
• Turn On / Turn Off Time and Rise / Fall Time: Variations acceptable within circuit timing requirements

Substitute parts are grouped based on isolation voltage rating and current transfer ratio classification, as these directly impact circuit performance and component selection criteria.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (4170Vrms Isolation):

CNY17F2M and CNY17F2TVM maintain identical isolation voltage and current transfer ratio specifications to the CNY17F2TM. CNY17F2TVM is manufactured by onsemi (original manufacturer) and carries ROHS3 compliance with active product status, making it the preferred direct replacement. CNY17F2M from Fairchild Semiconductor provides equivalent electrical performance with active status but features a different package height (0.300" vs 0.400"), requiring PCB layout verification before substitution.

Higher Isolation Voltage Alternatives (5000Vrms Isolation):

CNY17F-1M, CNY17F-2M, CNY17F-3M, and CNY17F-4M from Lite-On Inc. provide enhanced isolation voltage (5000Vrms) with extended operating temperature range (-55°C to 100°C). These parts are classified by current transfer ratio: CNY17F-1M (40-80%), CNY17F-2M (63-125%), CNY17F-3M (100-200%), and CNY17F-4M (160-320%). All Lite-On variants offer 150mA output current and improved Vce saturation (300mV), with ROHS3 compliance and active product status. Selection among these variants depends on required current transfer ratio matching for circuit gain specifications.

Compliance and Availability:

All substitute parts carry ROHS3 compliance except CNY17F2M. CNY17F2TVM and all Lite-On variants maintain active product status, ensuring long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can CNY17F2M be used as a direct replacement despite the different package height?

A: CNY17F2M has a 6-DIP package height of 0.300" compared to the CNY17F2TM's 0.400". While electrical specifications are identical, the reduced height requires PCB layout verification to confirm component clearance and mounting compatibility. Consult PCB design documentation before substitution.

Q: What is the difference between the Lite-On CNY17F variants?

A: The Lite-On CNY17F-1M, CNY17F-2M, CNY17F-3M, and CNY17F-4M differ in current transfer ratio classification. CNY17F-2M matches the CNY17F2TM's 63-125% range. CNY17F-1M provides lower gain (40-80%), CNY17F-3M provides higher gain (100-200%), and CNY17F-4M provides maximum gain (160-320%). Selection depends on circuit requirements for input-to-output current transfer characteristics.

Q: Is higher isolation voltage always acceptable?

A: Yes. The CNY17F variants with 5000Vrms isolation exceed the CNY17F2TM's 4170Vrms requirement and are electrically compatible. Higher isolation voltage provides additional safety margin and is acceptable for direct substitution in applications requiring 4170Vrms or lower isolation.

Q: What are the advantages of CNY17F2TVM over CNY17F2M?

A: CNY17F2TVM is manufactured by onsemi (the original CNY17F2TM manufacturer), maintains identical 0.400" package height, carries ROHS3 compliance, and has active product status. These factors provide superior design continuity and supply chain reliability compared to CNY17F2M.

Q: Can I substitute a higher current-rated part (150mA) for the 50mA CNY17F2TM?

A: Yes. Higher output current capability is acceptable and provides additional design margin. The Lite-On variants rated for 150mA output current are fully compatible with applications designed for 50mA output. Circuit performance remains unchanged as the output stage operates within its rated specifications.

Q: Are there temperature range considerations for substitution?

A: The CNY17F2TM operates -40°C to 100°C. All substitute parts meet or exceed this range. Lite-On variants extend to -55°C, providing wider temperature coverage. If your application operates within -40°C to 100°C, all substitutes are acceptable. For applications requiring -55°C operation, select Lite-On variants.