CNY17-4 Optoisolator Equivalent & Substitute Parts

Part Overview

The CNY17-4 is a 5000Vrms optoisolator with transistor output and base connection, manufactured by Everlight Electronics Co Ltd in a 6-DIP through-hole package. This component provides galvanic isolation for DC input signals with single-channel transistor output configuration. The part is Active status and ROHS3 compliant. Substitute parts are identified based on matching isolation voltage, package type, mounting configuration, and output stage characteristics within the CNY17 product family.

Substiute Parts

CNY17-4

Everlight Electronics Co LtdIn Stock: 89819CNY17-4 Datasheet

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CNY17-1-000E

Broadcom LimitedIn Stock: 4295CNY17-1-000E Datasheet

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CNY17-2-000E

Broadcom LimitedIn Stock: 8318CNY17-2-000E Datasheet

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CNY17-3-000E

Broadcom LimitedIn Stock: 9886CNY17-3-000E Datasheet

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CNY17-4-000E

Broadcom LimitedIn Stock: 12615CNY17-4-000E Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts within the CNY17 family are grouped by Current Transfer Ratio (CTR) performance at 10mA input current. The CNY17-4 and CNY17-4-000E share identical CTR specifications (160% minimum, 320% maximum), making them direct functional equivalents. All substitute parts maintain the following critical parameters:

• Isolation voltage: 5000Vrms
• Single channel configuration
• Transistor with base output stage
• 6-DIP through-hole package
• DC input type
• ROHS3 compliance
• MSL 1 rating

Substitution is determined by CTR matching and output voltage/current ratings. The CNY17-1-000E, CNY17-2-000E, and CNY17-3-000E represent lower CTR grades within the same product family and package.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent: CNY17-4-000E (Broadcom Limited) is the direct functional equivalent to CNY17-4. Both parts share identical CTR specifications (160% minimum, 320% maximum at 10mA) and are Active status products with ROHS3 compliance. The CNY17-4-000E is supplied in tube packaging and maintains all critical electrical parameters for substitution.

Alternative Grades: The CNY17-1-000E, CNY17-2-000E, and CNY17-3-000E are lower CTR grades within the same product family. These parts are suitable for applications where lower current transfer ratios are acceptable. All substitute parts maintain 5000Vrms isolation, 6-DIP package compatibility, and ROHS3 compliance.

Temperature Consideration: The CNY17-4 operates to 110°C maximum, while all Broadcom substitutes operate to 100°C maximum. Applications requiring operation above 100°C must use the CNY17-4 (Everlight).

Output Voltage Rating: The CNY17-4 supports 80V maximum output voltage, while Broadcom substitutes support 70V maximum. Applications requiring output voltages between 70V and 80V must use the CNY17-4.

All substitute parts are Active status and ROHS3 compliant, meeting regulatory requirements for new designs.

Frequently Asked Questions (FAQ)

Q: Can CNY17-4-000E directly replace CNY17-4 in existing designs?

A: Yes. CNY17-4-000E shares identical Current Transfer Ratio specifications (160% minimum, 320% maximum at 10mA), isolation voltage (5000Vrms), package type (6-DIP), and output stage configuration (transistor with base). Both are Active status and ROHS3 compliant. The primary difference is packaging format (tube vs. unspecified) and operating temperature maximum (100°C vs. 110°C). Verify application temperature requirements do not exceed 100°C.

Q: What is the difference between CNY17-1-000E, CNY17-2-000E, CNY17-3-000E, and CNY17-4-000E?

A: These parts differ in Current Transfer Ratio (CTR) performance at 10mA input current. CNY17-1-000E provides 40-80% CTR, CNY17-2-000E provides 63-125% CTR, CNY17-3-000E provides 100-200% CTR, and CNY17-4-000E provides 160-320% CTR. All other parameters (isolation voltage, package, output stage) remain identical. Select the grade matching your circuit's required CTR performance.

Q: Are all substitute parts pin-compatible with CNY17-4?

A: Yes. All substitute parts use the 6-DIP (0.300", 7.62mm) through-hole package with identical pinout. PCB footprints and socket compatibility are maintained across all listed substitutes.

Q: What is the maximum operating temperature for each part?

A: CNY17-4 (Everlight) operates from -55°C to 110°C. CNY17-1-000E, CNY17-2-000E, CNY17-3-000E, and CNY17-4-000E (Broadcom) all operate from -55°C to 100°C. Applications requiring operation above 100°C must use the CNY17-4.

Q: What output voltage ratings apply to each part?

A: CNY17-4 supports maximum output voltage of 80V. CNY17-1-000E, CNY17-2-000E, CNY17-3-000E, and CNY17-4-000E support maximum output voltage of 70V. Circuits requiring output voltages between 70V and 80V must use CNY17-4.

Q: Are all parts RoHS compliant?

A: Yes. CNY17-4 and all listed substitutes are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the difference in rise and fall times between CNY17-4 and Broadcom substitutes?

A: CNY17-4 specifies rise time of 6µs and fall time of 8µs. Broadcom substitutes specify 5µs for both rise and fall times. Applications with strict timing requirements should account for these differences.

Q: Can lower CTR grades (CNY17-1, CNY17-2, CNY17-3) be used in place of CNY17-4?

A: Lower CTR grades can be used only if circuit design accommodates reduced current transfer efficiency. CNY17-4 provides 160-320% CTR, while CNY17-3-000E provides 100-200% CTR. Verify input drive current and output load requirements are compatible with the selected grade's CTR performance.