TLP620-4 Equivalent & Substitute Parts

Part Overview

The TLP620-4 is a quad optocoupler with transistor output manufactured by Isocom Components 2004 LTD. This 16-pin DIP optoisolator provides galvanic isolation up to 5300Vrms across four independent channels, supporting both AC and DC input signals. The component is classified as Active product status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across isolation voltage, channel configuration, output characteristics, and package specifications.

Key Parameters

Parameter	Value
Manufacturer Part Number	TLP620-4
Manufacturer	Isocom Components 2004 LTD
Category	Optoisolators
Number of Channels	4
Voltage - Isolation	5300Vrms
Current Transfer Ratio (Min)	50% @ 5mA
Current Transfer Ratio (Max)	600% @ 5mA
Output Type	Transistor
Voltage - Output (Max)	55V
Current - Output / Channel	50mA
Vce Saturation (Max)	400mV
Operating Temperature	-30°C ~ 100°C
Package / Case	16-DIP (0.300", 7.62mm)
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the TLP620-4 are qualified based on strict equivalence across the following critical parameters:

Isolation Voltage: 5300Vrms (mandatory match)
Channel Configuration: 4 channels (mandatory match)
Output Type: Transistor output (mandatory match)
Package: 16-DIP (0.300", 7.62mm) (mandatory match)
Electrical Characteristics: Current transfer ratio range, output voltage rating, output current per channel, and saturation voltage (mandatory match)
Input Type: AC/DC capability (mandatory match)
Operating Temperature Range: -30°C ~ 100°C (mandatory match)
Compliance: RoHS3 and REACH status (mandatory match)

The identified substitutes—TLP620-4X and ISP620-4X—maintain identical electrical performance and mechanical compatibility with the primary part number across all specified parameters.

Parameter Comparison

Parameter	TLP620-4	TLP620-4X	ISP620-4X
Manufacturer	Isocom Components 2004 LTD	Isocom Components 2004 LTD	Isocom Components 2004 LTD
Number of Channels	4	4	4
Voltage - Isolation	5300Vrms	5300Vrms	5300Vrms
Current Transfer Ratio (Min)	50% @ 5mA	50% @ 5mA	50% @ 5mA
Current Transfer Ratio (Max)	600% @ 5mA	600% @ 5mA	600% @ 5mA
Output Type	Transistor	Transistor	Transistor
Voltage - Output (Max)	55V	55V	55V
Current - Output / Channel	50mA	50mA	50mA
Voltage - Forward (Vf) (Typ)	1.15V	1.15V	1.15V
Current - DC Forward (If) (Max)	50 mA	50 mA	50 mA
Vce Saturation (Max)	400mV	400mV	400mV
Rise / Fall Time (Typ)	4µs, 3µs	4µs, 3µs	4µs, 3µs
Input Type	AC, DC	AC, DC	AC, DC
Operating Temperature	-30°C ~ 100°C	-30°C ~ 100°C	-30°C ~ 100°C
Package / Case	16-DIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)
Mounting Type	Through Hole	Through Hole	Through Hole
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99	EAR99
HTSUS	8541.49.8000	8541.49.8000	8541.49.8000

Engineering Selection Recommendations

All three part numbers—TLP620-4, TLP620-4X, and ISP620-4X—are Active product status components manufactured by Isocom Components 2004 LTD with identical electrical specifications and mechanical compatibility. Selection between these parts is determined by packaging format and inventory availability rather than functional performance.

TLP620-4 is supplied in standard packaging with 4077 units in stock. TLP620-4X and ISP620-4X are supplied in tube packaging with 5300 and 910 units in stock respectively. All three variants maintain RoHS3 compliance, REACH unaffected status, and MSL Level 1 (unlimited moisture sensitivity rating), confirming suitability for standard manufacturing and storage conditions without special handling requirements.

Frequently Asked Questions (FAQ)

Q: Can TLP620-4X be used as a direct replacement for TLP620-4?

A: Yes. TLP620-4X maintains identical electrical characteristics, isolation voltage, channel configuration, output specifications, and 16-DIP package dimensions. The difference is packaging format (tube versus standard). Both are Active status components with equivalent compliance certifications.

Q: Are ISP620-4X and TLP620-4 functionally equivalent?

A: Yes. ISP620-4X provides the same 5300Vrms isolation, 4-channel transistor output, current transfer ratio range, output voltage and current ratings, and operating temperature range. The 16-DIP package and through-hole mounting are identical. Compliance status and electrical performance are equivalent.

Q: What is the difference between TLP620-4 and TLP620-4X packaging?

A: TLP620-4 uses standard packaging while TLP620-4X uses tube packaging. Both maintain the same 16-DIP (0.300", 7.62mm) physical dimensions and through-hole mounting compatibility. Packaging format does not affect electrical performance or circuit board integration.

Q: Can these parts be used interchangeably in existing designs?

A: Yes. All three part numbers share identical electrical specifications, isolation voltage, channel count, output type, and package dimensions. Circuit board layouts, PCB footprints, and electrical schematics require no modification when substituting between TLP620-4, TLP620-4X, and ISP620-4X.

Q: Are there any compliance or regulatory differences between these substitutes?

A: No. All three parts maintain RoHS3 compliance, REACH unaffected status, MSL Level 1 rating, EAR99 export classification, and identical HTSUS codes. Regulatory and environmental compliance is equivalent across all variants.

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