CNY17-2 Optoisolator Equivalent & Substitute Parts

Part Overview

The CNY17-2 is a 5000Vrms optoisolator transistor with base output in 6-DIP packaging, designed for high-voltage isolation applications. The original Vishay Semiconductor Opto Division CNY17-2. is classified as "Not For New Designs," making equivalent and substitute parts necessary for ongoing production and new circuit implementations. The Lite-On Inc. CNY17-2 variant and related parametric equivalents provide active product alternatives that maintain functional compatibility within specified electrical and mechanical tolerances.

Key Parameters

Parameter	Value
Isolation Voltage	5000Vrms
Number of Channels	1
Output Type	Transistor with Base
Current Transfer Ratio (Min)	63% @ 10mA
Current Transfer Ratio (Max)	125% @ 10mA
Maximum Output Voltage	70V
Maximum Output Current	50mA (primary) / 150mA (Lite-On variant)
Package / Case	6-DIP (0.300", 7.62mm)
Operating Temperature Range	-55°C ~ 110°C (Vishay) / -55°C ~ 100°C (Lite-On)
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Direct Manufacturer Equivalents: Parts sharing identical isolation voltage (5000Vrms), channel count (1), output type (Transistor with Base), package (6-DIP), and input type (DC). The Lite-On Inc. CNY17-2 qualifies as a direct equivalent with active product status, though output current capability differs (150mA vs. 50mA).

Parametric Equivalents: Vishay parts CNY17-2X001 and CNY117-2 maintain all critical electrical parameters including current transfer ratio range (63%–125% @ 10mA), isolation voltage, output voltage maximum (70V), and package form factor. These parts are electrically interchangeable with the original CNY17-2. specification.

Manufacturer-Recommended Alternatives: The Lite-On CNY17-1 provides functional substitution with reduced current transfer ratio (40%–80% @ 10mA) and is classified as manufacturer-recommended. This part is suitable only where lower CTR specifications are acceptable.

Parameter Comparison

Part Number	Manufacturer	Product Status	Isolation Voltage	CTR Min @ 10mA	CTR Max @ 10mA	Output Current / Channel	Vce Sat (Max)	Operating Temp Range	Inventory
CNY17-2.	Vishay Semiconductor Opto Division	Not For New Designs	5000Vrms	63%	125%	50mA	400mV	-55°C ~ 110°C	1870 Pcs
CNY17-2	Lite-On Inc.	Active	5000Vrms	63%	125%	150mA	300mV	-55°C ~ 100°C	43100 Pcs
CNY17-2X001	Vishay Semiconductor Opto Division	Active	5000Vrms	63%	125%	50mA	400mV	-55°C ~ 110°C	1300 Pcs
CNY117-2	Vishay Semiconductor Opto Division	Active	5000Vrms	63%	125%	50mA	400mV	-55°C ~ 110°C	12670 Pcs
CNY117-2X001	Vishay Semiconductor Opto Division	Active	5000Vrms	63%	125%	50mA	400mV	-55°C ~ 110°C	770 Pcs
CNY17-1	Lite-On Inc.	Active	5000Vrms	40%	80%	150mA	300mV	-55°C ~ 100°C	48700 Pcs

Engineering Selection Recommendations

Primary Selection: The Lite-On Inc. CNY17-2 is the preferred direct substitute. It maintains active product status, identical current transfer ratio specification (63%–125% @ 10mA), and 5000Vrms isolation voltage. The enhanced output current capability (150mA vs. 50mA) provides design margin. Operating temperature range is -55°C to 100°C, which covers most industrial applications; designs requiring operation above 100°C must use Vishay variants (CNY17-2X001, CNY117-2, or CNY117-2X001).

Secondary Selection: Vishay CNY17-2X001 or CNY117-2 are parametric equivalents with identical electrical specifications to the original CNY17-2. and extended temperature range to 110°C. These are suitable for high-temperature environments and provide continuity with legacy designs.

Conditional Selection: Lite-On CNY17-1 is acceptable only where circuit design permits reduced current transfer ratio (40%–80% @ 10mA). This part offers higher inventory availability but requires design verification to confirm CTR tolerance compatibility.

All substitute parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8541.49.8000, maintaining regulatory equivalence with the original part.

Frequently Asked Questions (FAQ)

Q: Can CNY17-2 from Lite-On replace the original Vishay CNY17-2.?

A: Yes. Both parts share identical isolation voltage (5000Vrms), current transfer ratio range (63%–125% @ 10mA), output type (Transistor with Base), and 6-DIP package. The Lite-On variant has active product status and higher output current capability (150mA). Operating temperature range differs: Lite-On is -55°C to 100°C; Vishay is -55°C to 110°C. Select based on temperature requirements.

Q: What is the difference between CNY17-2X001 and CNY117-2?

A: Both are Vishay parametric equivalents with identical electrical specifications: 5000Vrms isolation, 63%–125% CTR @ 10mA, 50mA output current, and -55°C to 110°C operating range. The primary difference is the base product number (CNY17 vs. CNY117). Electrical performance is equivalent; selection may depend on inventory availability or design documentation requirements.

Q: Is CNY17-1 a suitable replacement for CNY17-2?

A: CNY17-1 is not a direct replacement. It has reduced current transfer ratio (40%–80% @ 10mA) compared to CNY17-2 (63%–125% @ 10mA). Use CNY17-1 only if circuit design explicitly permits the lower CTR specification. Both parts share 5000Vrms isolation, 6-DIP package, and 150mA output current capability.

Q: Are all substitute parts in the same package?

A: Yes. All listed parts use 6-DIP (0.300", 7.62mm) through-hole packaging. Pin-to-pin compatibility is maintained across all substitutes, enabling direct board-level replacement without layout modification.

Q: What compliance certifications apply to these parts?

A: All parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. Moisture sensitivity level is 1 (Unlimited) for all variants, indicating no special storage or handling requirements.

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