3C92CTXV Optoisolator Equivalent & Substitute Parts

Part Overview

The 3C92CTXV is a 1000VDC isolation optoisolator with transistor output in TO-72-4 metal can packaging, manufactured by TT Electronics/Optek Technology. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The device provides single-channel isolation suitable for applications requiring high voltage isolation with DC input and transistor output configuration.

Key Parameters

Parameter	Value
Isolation Voltage	1000VDC
Number of Channels	1
Output Type	Transistor
Current Transfer Ratio (Min)	30% @ 10mA
Current Transfer Ratio (Max)	200% @ 10mA
Maximum Output Voltage	50V
Maximum Output Current	30mA
Turn On / Turn Off Time	9µs, 6µs (Max)
Vce Saturation (Max)	400mV
Operating Temperature Range	-55°C ~ 125°C
Package Type	TO-206AF, TO-72-4 Metal Can
Mounting Type	Through Hole

Substitute Part Grouping Explanation

Substitution for the 3C92CTXV is based on electrical and mechanical parameter equivalence across the optoisolator product line. All substitute parts maintain identical specifications for isolation voltage (1000VDC), channel configuration (1 channel), output type (transistor), current transfer ratio range (30% to 200% @ 10mA), maximum output voltage (50V), maximum output current (30mA), switching times (9µs on, 6µs off maximum), saturation voltage (400mV maximum), operating temperature range (-55°C to 125°C), and package configuration (TO-72-4 metal can through-hole mounting).

The primary distinction among substitute parts is product status and compliance certification. The 3C92CTXV is obsolete, while substitute parts 3C92C, 3C91C, and 3C92CTX are active products with RoHS3 compliance, making them suitable for new designs and ongoing procurement.

Parameter Comparison

Parameter	3C92CTXV (Main)	3C92C (Substitute)	3C91C (Substitute)	3C92CTX (Substitute)
Manufacturer	TT Electronics/Optek Technology	TT Electronics/Optek Technology	TT Electronics/Optek Technology	TT Electronics/Optek Technology
Product Status	Obsolete	Active	Active	Active
Isolation Voltage	1000VDC	1000VDC	1000VDC	1000VDC
Number of Channels	1	1	1	1
Output Type	Transistor	Transistor	Transistor	Transistor
Current Transfer Ratio (Min)	30% @ 10mA	30% @ 10mA	30% @ 10mA	30% @ 10mA
Current Transfer Ratio (Max)	200% @ 10mA	200% @ 10mA	200% @ 10mA	200% @ 10mA
Maximum Output Voltage	50V	50V	50V	50V
Maximum Output Current	30mA	30mA	30mA	30mA
Turn On / Turn Off Time	9µs, 6µs (Max)	9µs, 6µs (Max)	9µs, 6µs (Max)	9µs, 6µs (Max)
Vce Saturation (Max)	400mV	400mV	400mV	400mV
Operating Temperature Range	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Package Type	TO-206AF, TO-72-4 Metal Can	TO-206AF, TO-72-4 Metal Can	TO-206AF, TO-72-4 Metal Can	TO-206AF, TO-72-4 Metal Can
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
RoHS Status	RoHS non-compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

For new designs and ongoing procurement, the 3C92C is the manufacturer-recommended substitute for the obsolete 3C92CTXV. Both parts maintain identical electrical and mechanical specifications while 3C92C carries active product status and RoHS3 compliance certification.

The 3C91C and 3C92CTX are parametric equivalents offering identical functional performance and compliance status. Selection among these three active alternatives should be based on inventory availability and procurement lead times, as all three parts satisfy the electrical and mechanical requirements of the 3C92CTXV application.

The 3C92CTXV's RoHS non-compliant status makes it unsuitable for applications subject to RoHS3 regulatory requirements. All three substitute parts address this compliance gap while maintaining full electrical equivalence.

Frequently Asked Questions (FAQ)

Q: Can 3C92C, 3C91C, or 3C92CTX be used as direct replacements for 3C92CTXV?

A: Yes. All three parts are parametric equivalents with identical isolation voltage (1000VDC), channel count (1), output type (transistor), current transfer ratio range (30% to 200% @ 10mA), output voltage rating (50V), output current rating (30mA), switching times (9µs on, 6µs off maximum), saturation voltage (400mV maximum), operating temperature range (-55°C to 125°C), and TO-72-4 through-hole package configuration.

Q: What is the primary difference between the substitute parts?

A: The 3C92CTXV is obsolete with RoHS non-compliant status. The substitute parts 3C92C, 3C91C, and 3C92CTX are all active products with RoHS3 compliance. All electrical and mechanical parameters are identical across all four parts.

Q: Are there any package or pinout differences?

A: No. All parts use the TO-206AF, TO-72-4 metal can package with through-hole mounting. Pinout and mechanical dimensions are identical.

Q: Which substitute should be selected for new designs?

A: The 3C92C is the manufacturer-recommended substitute. However, 3C91C and 3C92CTX are equally suitable from an electrical and compliance perspective. Selection may be based on inventory availability and procurement lead times.

Q: Does the RoHS3 compliance of substitute parts affect circuit performance?

A: No. RoHS3 compliance indicates material composition compliance with regulatory requirements and does not alter electrical performance or functional characteristics. All electrical parameters remain identical.

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