CNY172VM Equivalent & Substitute Parts

Part Overview

The CNY172VM is an optoisolator transistor with base output manufactured by onsemi, designed for high-voltage isolation applications. This component provides 4170Vrms isolation voltage in a single-channel configuration with transistor output and integrated base connection. The part is currently in active production status with 1128 units in stock. Equivalent and substitute parts are identified when identical electrical performance and mechanical compatibility can be maintained across the specified parameter range.

Substiute Parts

CNY172VM

onsemiIn Stock: 1190CNY172VM Datasheet

Current PartRFQ

CNY172M

onsemiIn Stock: 18084CNY172M Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CNY172VM are identified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution logic is based on the following key parameters that must remain identical:

• Voltage - Isolation: 4170Vrms
• Number of Channels: 1
• Output Type: Transistor with Base
• Current Transfer Ratio range: 63% to 125% @ 10mA
• Voltage - Output (Max): 70V
• Current - Output / Channel: 50mA
• Vce Saturation (Max): 400mV
• Operating Temperature range: -40°C ~ 100°C
• Package / Case: 6-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole

The CNY172M meets all these criteria and is classified as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the CNY172VM and CNY172M are active production parts from onsemi with identical electrical and mechanical specifications. Both parts maintain ROHS3 compliance and REACH unaffected status. The CNY172M offers higher inventory availability (18019 units) compared to the CNY172VM (1128 units). Selection between these parts should be based on supply chain requirements and lead time considerations, as all functional parameters are equivalent.

Frequently Asked Questions (FAQ)

Q: Can CNY172M be used as a direct replacement for CNY172VM?

A: Yes. The CNY172M is a parametric equivalent with identical isolation voltage (4170Vrms), current transfer ratio (63-125% @ 10mA), output characteristics (70V max, 50mA per channel), and package configuration (6-DIP through-hole). All electrical and mechanical specifications match exactly.

Q: Are there any differences in compliance or certifications between these parts?

A: No. Both parts carry identical RoHS3 compliance and REACH unaffected status. Both are manufactured by onsemi and maintain active production status.

Q: What is the significance of the 6-DIP package specification?

A: The 6-DIP (0.300", 7.62mm) package defines the physical form factor and pin configuration. Both the CNY172VM and CNY172M use this identical package, ensuring mechanical compatibility in through-hole PCB applications without layout modifications.

Q: Does the difference in inventory levels affect technical compatibility?

A: No. Inventory levels reflect supply availability only and do not impact electrical performance or functional compatibility. Both parts are equivalent for circuit design purposes.

Q: What parameters must remain constant for substitution validity?

A: Isolation voltage (4170Vrms), channel count (1), output type (transistor with base), current transfer ratio range (63-125%), maximum output voltage (70V), maximum output current (50mA), saturation voltage (400mV), operating temperature range (-40°C to 100°C), and package type (6-DIP through-hole) must all remain identical for valid substitution.