IS4N45G Equivalent & Substitute Parts

Part Overview

The IS4N45G is an optoisolator Darlington with base output manufactured by Isocom Components 2004 LTD. This 6-pin DIP component provides galvanic isolation with a 5300Vrms rating and single-channel configuration. The part is currently active in production with 891 units in stock. Alternative models become necessary when addressing specific inventory constraints, supply chain requirements, or application-specific lead time considerations while maintaining identical electrical and mechanical specifications.

Substiute Parts

IS4N45G

Isocom Components 2004 LTDIn Stock: 965IS4N45G Datasheet

Current PartRFQ

IS4N45XG

Isocom Components 2004 LTDIn Stock: 1124IS4N45XG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IS4N45G is determined by strict equivalence across the following critical parameters:

• Voltage - Isolation: 5300Vrms
• Number of Channels: 1
• Current Transfer Ratio (Min): 250% @ 1mA
• Output Type: Darlington with Base
• Voltage - Output (Max): 55V
• Current - Output / Channel: 150mA
• Vce Saturation (Max): 1.2V
• Operating Temperature: -25°C ~ 100°C
• Package / Case: 6-DIP (0.400", 10.16mm)
• Mounting Type: Through Hole

The IS4N45XG meets all specified electrical and mechanical parameters, maintaining identical isolation voltage, channel configuration, current transfer characteristics, output specifications, and thermal operating range. Both parts share the same series designation (IS4N45) and package footprint, ensuring direct functional and physical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both IS4N45G and IS4N45XG are active production components manufactured by Isocom Components 2004 LTD with identical ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on inventory availability and supply chain lead times. The IS4N45XG currently maintains higher inventory levels (1107 units) compared to the IS4N45G (891 units), making it suitable for applications requiring extended procurement windows or larger production volumes. Both parts carry equivalent regulatory certifications (EAR99 ECCN classification, 8541.49.8000 HTSUS code) and moisture sensitivity level 1 (unlimited shelf life), ensuring interchangeable deployment in production environments.

Frequently Asked Questions (FAQ)

Q: Can IS4N45XG be used as a direct replacement for IS4N45G?

A: Yes. Both parts are parametrically equivalent across all electrical specifications, isolation voltage, output characteristics, and thermal operating range. The 6-DIP package footprint and through-hole mounting type are identical, enabling direct PCB substitution without design modification.

Q: Are there differences in isolation voltage between these parts?

A: No. Both IS4N45G and IS4N45XG provide 5300Vrms isolation voltage with identical single-channel configuration and Darlington output topology.

Q: Do these parts have the same current transfer ratio?

A: Yes. Both parts specify a minimum current transfer ratio of 250% at 1mA input current, ensuring equivalent optical coupling efficiency and switching performance.

Q: What is the maximum output current for both parts?

A: Both IS4N45G and IS4N45XG support 150mA maximum output current per channel with a maximum output voltage of 55V and Vce saturation of 1.2V.

Q: Are both parts suitable for the same operating temperature range?

A: Yes. Both parts operate across -25°C to 100°C, providing identical thermal performance specifications for industrial and commercial applications.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both IS4N45G and IS4N45XG are ROHS3 compliant, REACH unaffected, and classified under EAR99 ECCN with 8541.49.8000 HTSUS code, ensuring equivalent regulatory compliance for export and domestic applications.

Q: Is the package footprint identical between these parts?

A: Yes. Both parts use 6-DIP (0.400", 10.16mm) through-hole packaging, ensuring identical PCB layout compatibility and assembly process requirements.