IS627G Optoisolator Darlington Output - Equivalent & Substitute Parts

Part Overview

The IS627G is an optoisolator with Darlington output manufactured by Isocom Components 2004 LTD. This single-channel device provides 5300Vrms isolation in a 4-DIP through-hole package and is classified as Active product status. Alternative models become necessary when addressing inventory constraints, supply chain disruptions, or specific application requirements while maintaining identical electrical and mechanical specifications.

Substiute Parts

IS627G

Isocom Components 2004 LTDIn Stock: 791IS627G Datasheet

Current PartRFQ

IS852XG

Isocom Components 2004 LTDIn Stock: 906IS852XG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the IS627G is determined by strict equivalence across the following critical parameters:

• Voltage - Isolation: 5300Vrms
• Number of Channels: 1
• Output Type: Darlington
• Current Transfer Ratio range: 1000% to 15000% @ 1mA
• Voltage - Output (Max): 300V
• Current - Output / Channel: 150mA
• Package / Case: 4-DIP (0.400", 10.16mm)
• Mounting Type: Through Hole
• Operating Temperature: -30°C ~ 100°C

The IS852XG meets all these criteria and qualifies as a parametric equivalent substitute.

Parameter Comparison

Engineering Selection Recommendations

Both IS627G and IS852XG are Active products manufactured by Isocom Components 2004 LTD with identical ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on availability and supply chain considerations. Both devices meet all electrical, mechanical, and environmental specifications for direct substitution in applications requiring single-channel optoisolation with Darlington output at 5300Vrms isolation rating in 4-DIP through-hole packages.

Frequently Asked Questions (FAQ)

Q: Can IS852XG replace IS627G in existing designs? A: Yes. The IS852XG is a parametric equivalent with identical electrical characteristics, isolation voltage, output current rating, package dimensions, and mounting type. No circuit modifications are required.

Q: Are there any differences in compliance or certifications? A: No. Both parts carry identical ROHS3 compliance, REACH unaffected status, and Active product status from the same manufacturer.

Q: What determines substitution eligibility for these optoisolators? A: Substitution is based on matching isolation voltage (5300Vrms), channel count (1), output type (Darlington), current transfer ratio range (1000-15000% @ 1mA), maximum output voltage (300V), output current per channel (150mA), package type (4-DIP), and operating temperature range (-30°C to 100°C).

Q: Are the packages physically identical? A: Yes. Both use 4-DIP (0.400", 10.16mm) through-hole packages with identical pin configurations and PCB footprints.

Q: What is the current transfer ratio significance? A: Current transfer ratio defines the optoisolator's efficiency. Both parts operate at 1000% minimum and 15000% maximum @ 1mA input, ensuring consistent performance in isolation and signal transmission applications.