IS733G Optoisolator - Equivalent & Substitute Parts

Part Overview

The IS733G is an optoisolator transistor with base output manufactured by Isocom Components 2004 LTD. This single-channel device provides 5300Vrms isolation and is designed for AC/DC input applications requiring galvanic isolation in 6-DIP through-hole packaging. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when identical electrical and mechanical parameters are maintained across the same product series, ensuring direct functional equivalence without design modification.

Substiute Parts

IS733G

Isocom Components 2004 LTDIn Stock: 1216IS733G Datasheet

Current PartRFQ

IS733XG

Isocom Components 2004 LTDIn Stock: 994IS733XG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IS733G are identified based on strict parametric equivalence within the IS733 series. The substitution criteria are:

• Identical isolation voltage rating (5300Vrms)
• Matching current transfer ratio specifications (15% minimum, 300% maximum @ 1mA)
• Same output type (Transistor with Base)
• Identical maximum output voltage (35V) and output current (50mA)
• Matching saturation voltage (200mV maximum)
• Same operating temperature range (-30°C ~ 100°C)
• Identical package and mounting configuration (6-DIP through-hole)
• Equivalent compliance certifications (RoHS3, REACH Unaffected)

Parts meeting all these criteria are classified as parametric equivalents and may be used interchangeably in circuit designs without modification.

Parameter Comparison

Engineering Selection Recommendations

The IS733XG is a direct parametric equivalent to the IS733G. Both parts are active products from the same manufacturer with identical electrical specifications, isolation ratings, and package configurations. Both maintain RoHS3 compliance and REACH unaffected status, meeting current regulatory requirements for industrial and commercial applications.

Selection between IS733G and IS733XG should be based on availability and lead time requirements, as both parts are functionally interchangeable. No circuit redesign or validation is required when substituting between these parts.

Frequently Asked Questions (FAQ)

Q: Can IS733XG replace IS733G in existing designs? A: Yes. IS733XG is a parametric equivalent with identical electrical and mechanical specifications. Direct substitution is possible without circuit modification.

Q: Are there any package differences between IS733G and IS733XG? A: No. Both parts use 6-DIP (0.400", 10.16mm) through-hole packaging with identical pin configurations and mounting requirements.

Q: Do both parts meet the same compliance standards? A: Yes. Both IS733G and IS733XG are RoHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Q: What determines if a part is a valid substitute for IS733G? A: Valid substitutes must maintain identical isolation voltage (5300Vrms), current transfer ratio range (15%-300% @ 1mA), output specifications (35V maximum, 50mA per channel), saturation voltage (200mV maximum), operating temperature range (-30°C to 100°C), and 6-DIP through-hole package configuration.

Q: Are there inventory differences between the two parts? A: Inventory levels may vary. IS733G has 1164 pieces in stock, while IS733XG has 895 pieces available. Verify current stock status with your supplier for procurement planning.