4N32300 Equivalent & Substitute Parts

Part Overview

The 4N32300 is an optoisolator with Darlington output and base connection, manufactured by onsemi. It provides 5300Vrms isolation voltage in a 6-DIP through-hole package. The product is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing system maintenance, redesign, and procurement planning.

Substiute Parts

4N32300

onsemiIn Stock: 982614N32300 Datasheet

Current PartRFQ

4N32

Vishay Semiconductor Opto DivisionIn Stock: 1526684N32 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 4N32300 is determined by strict alignment of electrical and mechanical parameters. The following criteria establish valid substitution:

Critical Parameters for Substitution:

• Isolation voltage: 5300Vrms minimum
• Output configuration: Darlington with Base
• Number of channels: 1
• Package type: 6-DIP through-hole
• Operating temperature range: -55°C to 100°C minimum
• Current transfer ratio: 500% @ 10mA minimum

The 4N32 from Vishay Semiconductor Opto Division meets all critical substitution criteria. Both parts share identical isolation voltage, output type, channel count, package configuration, and operating temperature range. Differences in maximum output current (150mA vs. 100mA) and forward voltage specifications are within acceptable tolerance for this component category.

Parameter Comparison

Engineering Selection Recommendations

The 4N32 from Vishay Semiconductor Opto Division is a direct substitute for the 4N32300. Both parts are classified as obsolete and carry identical REACH and compliance status. The Vishay 4N32 maintains full electrical and mechanical compatibility with the onsemi 4N32300 across all specified parameters.

Selection between these parts should be based on availability and procurement lead time, as both meet the complete set of electrical and mechanical requirements for applications requiring 5300Vrms isolation, Darlington output with base connection, and 6-DIP through-hole mounting.

Frequently Asked Questions (FAQ)

Q: Can the 4N32 replace the 4N32300 in existing designs? A: Yes. The 4N32 meets all electrical and mechanical specifications of the 4N32300, including isolation voltage, output configuration, package type, and operating temperature range. Direct substitution is possible without circuit modification.

Q: What is the difference in output current between these parts? A: The 4N32300 specifies 150mA maximum output current per channel, while the 4N32 specifies 100mA. Applications requiring output current above 100mA should retain the 4N32300 if available, or evaluate circuit redesign requirements.

Q: Are both parts RoHS compliant? A: The 4N32300 status is not specified in the provided data. The 4N32 from Vishay is ROHS3 compliant. Compliance requirements should be confirmed with the specific application and regulatory requirements.

Q: Why are both parts classified as obsolete? A: Obsolete status indicates these parts are no longer in active production. For new designs, evaluation of current-generation optoisolator alternatives is recommended. For legacy system maintenance, both parts remain available through authorized distributors.

Q: Does package type affect substitution? A: No. Both parts use identical 6-DIP (0.300", 7.62mm) through-hole packaging. Pin configuration and board layout compatibility are maintained.