CNY17-2X Optoisolator Equivalent & Substitute Parts

Part Overview

The CNY17-2X is a single-channel optoisolator transistor with base output manufactured by Isocom Components 2004 LTD. This component provides 5300Vrms isolation voltage and is designed for DC input applications requiring transistor output with base access. The part is currently in active production status with 702 units in stock. Substitute parts become necessary when primary inventory is depleted, when alternative sourcing is required for supply chain continuity, or when design flexibility permits selection from qualified equivalent components meeting identical electrical and mechanical specifications.

Key Parameters

Parameter	Value
Manufacturer Part Number	CNY17-2X
Manufacturer	Isocom Components 2004 LTD
Category	Optoisolators
Number of Channels	1
Voltage - Isolation	5300Vrms
Current Transfer Ratio (Min)	63% @ 10mA
Current Transfer Ratio (Max)	125% @ 10mA
Output Type	Transistor with Base
Voltage - Output (Max)	70V
Current - Output / Channel	50mA
Package / Case	6-DIP (0.300", 7.62mm)
Operating Temperature	-55°C ~ 100°C
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the CNY17-2X is determined by strict equivalence across the following critical parameters:

Single channel configuration
5300Vrms isolation voltage rating
Current transfer ratio range: 63% to 125% @ 10mA
Transistor output with base access
Maximum output voltage: 70V
Maximum output current: 50mA per channel
6-DIP through-hole package format (0.300", 7.62mm)
Operating temperature range: -55°C to 100°C
DC input type
ROHS3 compliance and MSL 1 rating

The CNY17-2XG (Isocom Components 2004 LTD) and SFH600-1 (Vishay Semiconductor Opto Division) meet all mandatory electrical and mechanical parameters for direct substitution. Timing characteristics (turn-on/turn-off and rise/fall times) may vary within acceptable operational margins but do not disqualify these parts from equivalent status.

Parameter Comparison

Parameter	CNY17-2X	CNY17-2XG	SFH600-1
Manufacturer	Isocom Components 2004 LTD	Isocom Components 2004 LTD	Vishay Semiconductor Opto Division
Number of Channels	1	1	1
Voltage - Isolation	5300Vrms	5300Vrms	5300Vrms
Current Transfer Ratio (Min)	63% @ 10mA	63% @ 10mA	63% @ 10mA
Current Transfer Ratio (Max)	125% @ 10mA	125% @ 10mA	125% @ 10mA
Output Type	Transistor with Base	Transistor with Base	Transistor with Base
Voltage - Output (Max)	70V	70V	70V
Current - Output / Channel	50mA	50mA	50mA
Voltage - Forward (Vf) (Typ)	1.2V	1.2V	1.25V
Vce Saturation (Max)	400mV	400mV	400mV
Operating Temperature	-55°C ~ 100°C	-55°C ~ 100°C	-55°C ~ 100°C
Package / Case	6-DIP (0.300", 7.62mm)	6-DIP (0.300", 7.62mm)	6-DIP (0.300", 7.62mm)
Mounting Type	Through Hole	Through Hole	Through Hole
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Last Time Buy

Engineering Selection Recommendations

The CNY17-2X remains the primary selection for new designs and ongoing production due to its active product status and current inventory availability (702 units in stock).

The CNY17-2XG is a direct parametric equivalent from the same manufacturer with identical electrical specifications and active production status. This part is suitable for immediate substitution with 788 units currently available. Timing characteristics show minor variations (turn-on time 4.2µs vs. 3µs, turn-off time 23µs vs. 2.3µs) that remain within acceptable operational margins for most applications.

The SFH600-1 manufactured by Vishay Semiconductor Opto Division meets all critical electrical and mechanical parameters and carries ROHS3 compliance. However, this part is designated as Last Time Buy, indicating discontinued production. While 2189 units are currently in stock, this part should be selected only when CNY17-2X and CNY17-2XG are unavailable, as future procurement will not be possible. The forward voltage specification differs slightly (1.25V vs. 1.2V), which is within acceptable tolerance for most circuit designs.

Frequently Asked Questions (FAQ)

Q: Can CNY17-2XG be used as a direct replacement for CNY17-2X in existing designs?

A: Yes. Both parts share identical isolation voltage (5300Vrms), current transfer ratio specifications (63-125% @ 10mA), output voltage and current ratings (70V, 50mA), and 6-DIP package format. The parts are electrically and mechanically interchangeable.

Q: What are the timing differences between CNY17-2X and CNY17-2XG?

A: The CNY17-2XG exhibits longer turn-off time (23µs vs. 2.3µs) and turn-on time (4.2µs vs. 3µs), with correspondingly higher rise and fall times. These differences do not affect substitution eligibility but may impact circuit performance in high-speed switching applications. Circuit validation is the responsibility of the design engineer.

Q: Why is SFH600-1 marked as Last Time Buy?

A: SFH600-1 is in end-of-life status with no future production planned. While currently available in inventory (2189 units), this part should be reserved for applications where CNY17-2X or CNY17-2XG cannot be sourced.

Q: Are all three parts pin-compatible?

A: Yes. All three parts use the 6-DIP (0.300", 7.62mm) through-hole package format with identical pinout for transistor output with base configuration.

Q: What is the difference in forward voltage between these parts?

A: CNY17-2X and CNY17-2XG specify 1.2V typical forward voltage, while SFH600-1 specifies 1.25V. This 0.05V difference is negligible for most circuit applications and does not disqualify SFH600-1 from substitution.

Q: Can these parts be used in applications requiring temperatures below -55°C or above 100°C?

A: No. All three parts are rated for -55°C to 100°C operating temperature. Applications outside this range require alternative component selection.

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