CNW82S Optoisolator Equivalent & Substitute Parts

Part Overview

The CNW82S is an optoisolator with transistor output manufactured by onsemi, designed for high-voltage isolation applications. It features a single channel with 5900Vrms isolation voltage and 100mA output current capability in a 6-SMD surface mount package. The CNW82S is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

CNW82S

onsemiIn Stock: 750CNW82S Datasheet

Current PartRFQ

CNY17F-1S

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

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CNW82S is determined by the following critical parameters:

• Isolation Voltage: Minimum 5000Vrms (CNW82S specifies 5900Vrms)
• Number of Channels: Must be 1 channel
• Output Type: Must be transistor output
• Package / Case: Must be 6-SMD, Gull Wing for mechanical compatibility
• Mounting Type: Must be Surface Mount
• Current - Output / Channel: Minimum 100mA capability
• Voltage - Output (Max): Minimum 50V rating

The CNY17F-1S meets these substitution criteria and is classified as an active product, providing design continuity for applications currently using the obsolete CNW82S.

Parameter Comparison

Engineering Selection Recommendations

The CNY17F-1S is a direct functional substitute for the CNW82S based on matching package, channel configuration, and output type. The CNY17F-1S provides superior electrical performance across multiple parameters: higher current transfer ratio (40-80% vs. 0.4%), increased output current capability (150mA vs. 100mA), and lower saturation voltage (300mV vs. 400mV). While the CNY17F-1S isolation voltage is rated at 5000Vrms compared to the CNW82S at 5900Vrms, this remains suitable for applications within the CNW82S operating envelope.

The CNY17F-1S holds active product status with ROHS3 compliance, ensuring long-term availability and alignment with current regulatory requirements. The CNW82S, being obsolete and RoHS non-compliant, should be replaced with the CNY17F-1S for new designs and production continuity.

Frequently Asked Questions (FAQ)

Q: Can the CNY17F-1S directly replace the CNW82S in existing designs?

A: Yes. Both components share identical package geometry (6-SMD, Gull Wing), channel count (1), and output type (transistor). The CNY17F-1S meets or exceeds the electrical specifications of the CNW82S across all critical parameters.

Q: What is the isolation voltage difference between these parts?

A: The CNW82S is rated at 5900Vrms isolation, while the CNY17F-1S is rated at 5000Vrms. For applications requiring isolation voltage above 5000Vrms, design verification is necessary to confirm the CNY17F-1S meets system requirements.

Q: Are there any compliance differences?

A: Yes. The CNW82S is RoHS non-compliant, while the CNY17F-1S is ROHS3 compliant. For new designs and regulated applications, the CNY17F-1S is the appropriate choice.

Q: What are the key performance improvements of the CNY17F-1S?

A: The CNY17F-1S provides higher current transfer ratio (40-80% vs. 0.4%), increased output current per channel (150mA vs. 100mA), higher maximum output voltage (70V vs. 50V), and lower saturation voltage (300mV vs. 400mV).

Q: Is the CNY17F-1S actively manufactured?

A: Yes. The CNY17F-1S is classified as an active product with current manufacturing support, ensuring long-term availability compared to the obsolete CNW82S.