SFH600-0 Equivalent & Substitute Parts

Part Overview

The SFH600-0 is a 6-DIP optoisolator transistor with base output manufactured by Vishay Semiconductor Opto Division. This component provides 5300Vrms isolation with a single channel transistor output configuration, designed for DC input applications requiring galvanic isolation in industrial and consumer electronics.

The SFH600-0 is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs and field replacements. Active alternatives with compatible electrical and mechanical specifications are available from multiple manufacturers.

Key Parameters

Parameter	SFH600-0 Value
Voltage - Isolation	5300Vrms
Number of Channels	1
Current Transfer Ratio (Min)	40% @ 10mA
Current Transfer Ratio (Max)	80% @ 10mA
Output Type	Transistor with Base
Voltage - Output (Max)	70V
Current - Output / Channel	50mA
Vce Saturation (Max)	400mV
Operating Temperature	-55°C ~ 100°C
Package / Case	6-DIP (0.300", 7.62mm)
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the SFH600-0 is determined by the following critical parameters:

Mandatory Compatibility Criteria:

Package / Case: 6-DIP (0.300", 7.62mm) — ensures mechanical and pin compatibility
Mounting Type: Through Hole — maintains PCB assembly compatibility
Output Type: Transistor with Base — preserves circuit functionality
Operating Temperature: -55°C ~ 100°C — ensures thermal envelope compatibility
Input Type: DC — maintains signal compatibility

Electrical Performance Criteria:

Voltage - Isolation: 5300Vrms or higher — ensures isolation rating meets or exceeds original specification
Current Transfer Ratio: 40% minimum @ 10mA — establishes minimum switching performance
Voltage - Output (Max): 70V — defines maximum collector voltage rating
Current - Output / Channel: 50mA or higher — ensures output current capability
Vce Saturation (Max): 400mV or lower — maintains saturation performance

Compliance Criteria:

RoHS Status: ROHS3 Compliant — ensures regulatory compliance
Moisture Sensitivity Level: 1 (Unlimited) — maintains handling and storage compatibility

Substitute parts are grouped by Current Transfer Ratio performance bands (40-80%, 63-125%, 100-200%, 160-320%, 200-400%) to facilitate selection based on circuit requirements.

Parameter Comparison

Part Number	Manufacturer	Product Status	Voltage - Isolation	CTR Min @ 10mA	CTR Max @ 10mA	Voltage - Output (Max)	Current - Output	Vce Sat (Max)	Operating Temp	Package
SFH600-0	Vishay Semiconductor Opto Division	Obsolete	5300Vrms	40%	80%	70V	50mA	400mV	-55°C ~ 100°C	6-DIP
CNY17-1X	Isocom Components 2004 LTD	Active	5300Vrms	40%	80%	70V	50mA	400mV	-55°C ~ 100°C	6-DIP
CNY17-1-000E	Broadcom Limited	Active	5000Vrms	40%	80%	70V	150mA	300mV	-55°C ~ 100°C	6-DIP
CNY17-2	Lite-On Inc.	Active	5000Vrms	63%	125%	70V	150mA	300mV	-55°C ~ 100°C	6-DIP
CNY17-2X	Isocom Components 2004 LTD	Active	5300Vrms	63%	125%	70V	50mA	400mV	-55°C ~ 100°C	6-DIP
CNY17-3	Quality Technologies	Active	Not specified	Not specified	100%	70V	Not specified	Not specified	Not specified	6-DIP
CNY17-3X	Isocom Components 2004 LTD	Active	5300Vrms	100%	200%	70V	50mA	400mV	-55°C ~ 100°C	6-DIP
CNY17-4	Lite-On Inc.	Active	5000Vrms	160%	320%	70V	150mA	300mV	-55°C ~ 100°C	6-DIP
CNY17-4X	Isocom Components 2004 LTD	Active	5300Vrms	160%	320%	70V	50mA	400mV	-55°C ~ 100°C	6-DIP
CNY17-5	Isocom Components 2004 LTD	Active	5300Vrms	200%	400%	70V	50mA	400mV	-55°C ~ 100°C	6-DIP
CNY17-5X	Isocom Components 2004 LTD	Active	5300Vrms	200%	400%	70V	50mA	400mV	-55°C ~ 100°C	6-DIP

Engineering Selection Recommendations

Direct Replacement (Identical Electrical and Mechanical Specifications):

CNY17-1X from Isocom Components 2004 LTD is the primary direct substitute. It maintains identical isolation voltage (5300Vrms), Current Transfer Ratio range (40-80% @ 10mA), output current (50mA), and saturation voltage (400mV). This part is active and ROHS3 compliant with unlimited moisture sensitivity rating.

Higher Performance Alternatives with Enhanced Output Current:

CNY17-1-000E (Broadcom Limited) and CNY17-2 (Lite-On Inc.) provide increased output current capability (150mA versus 50mA) with identical isolation voltage minimum of 5000Vrms. These parts are suitable for applications requiring higher load current while maintaining the same package and thermal specifications. Both are active and ROHS3 compliant.

Performance-Graded Substitutes:

CNY17-2X, CNY17-3X, CNY17-4X, CNY17-5, and CNY17-5X offer progressively higher Current Transfer Ratio performance (63-125%, 100-200%, 160-320%, and 200-400% respectively). These parts maintain 5300Vrms isolation and 50mA output current, matching the original SFH600-0 mechanical and thermal envelope. All are active and ROHS3 compliant.

Selection Criteria:

For direct replacement in existing designs: CNY17-1X
For designs requiring higher output current: CNY17-1-000E or CNY17-2
For designs requiring higher Current Transfer Ratio: CNY17-3X, CNY17-4X, CNY17-5, or CNY17-5X
All recommended substitutes are active products with ROHS3 compliance and unlimited moisture sensitivity

Frequently Asked Questions (FAQ)

Q: Can CNY17-1X be used as a direct replacement for SFH600-0?

A: Yes. CNY17-1X matches all critical parameters: 5300Vrms isolation, 40-80% Current Transfer Ratio @ 10mA, 70V maximum output voltage, 50mA output current, 400mV maximum saturation voltage, and 6-DIP through-hole package. Both operate across -55°C to 100°C.

Q: What is the difference between CNY17-1X and CNY17-2X?

A: Both maintain 5300Vrms isolation and 6-DIP package compatibility. CNY17-2X provides higher Current Transfer Ratio (63-125% versus 40-80%), which results in faster switching response and higher output current gain. Select CNY17-2X if the circuit requires improved switching performance or higher base drive efficiency.

Q: Why do some substitutes show 5000Vrms instead of 5300Vrms isolation?

A: Parts with 5000Vrms isolation (CNY17-1-000E, CNY17-2, CNY17-4) still exceed the minimum isolation requirement for most applications. However, if the design specifically requires 5300Vrms isolation, select parts with the "-X" suffix (CNY17-1X, CNY17-2X, CNY17-3X, CNY17-4X, CNY17-5X) which maintain this specification.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), matching the original SFH600-0 compliance profile.

Q: What is the significance of Current Transfer Ratio (CTR) performance bands?

A: Current Transfer Ratio determines the output current gain relative to input current. Higher CTR values (200-400%) provide faster switching and require less input drive current compared to lower CTR values (40-80%). Select based on circuit requirements for switching speed and input current availability.

Q: Can CNY17-1-000E be used in place of SFH600-0 despite lower isolation voltage?

A: CNY17-1-000E provides 5000Vrms isolation versus the original 5300Vrms. While this represents a 300V reduction, it remains suitable for most industrial isolation applications. However, if the design margin specifically requires 5300Vrms, select alternatives with the "-X" designation.

Q: Is the 6-DIP package identical across all substitute parts?

A: Yes. All substitute parts use 6-DIP (0.300", 7.62mm) through-hole package with identical pin spacing and mounting requirements, ensuring direct PCB compatibility without layout modifications.

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