H11G2 Optoisolator Equivalent & Substitute Parts

Part Overview

The H11G2 is a 5300Vrms isolation optoisolator with Darlington output and base connection, manufactured by onsemi in a 6-DIP through-hole package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The H11G2 provides single-channel isolation suitable for applications requiring high voltage isolation with Darlington output configuration.

Substiute Parts

H11G2

onsemiIn Stock: 6599H11G2 Datasheet

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H11G2M

onsemiIn Stock: 2340H11G2M Datasheet

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LTV-725V

Lite-On Inc.In Stock: 6158LTV-725V Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the H11G2 optoisolator are identified based on the following critical parameters that determine functional compatibility:

Primary Matching Criteria:

• Single-channel optoisolator configuration
• Darlington output with base connection
• 6-DIP through-hole package (0.300", 7.62mm)
• Isolation voltage rating of 4170Vrms or higher
• Current transfer ratio minimum of 1000%
• DC input type
• Operating temperature range that encompasses or exceeds the application requirements

Substitution Logic: Parts are grouped as suitable substitutes when they maintain the same package footprint, output topology (Darlington with base), and meet or exceed the isolation voltage and current transfer ratio specifications. Variations in maximum output voltage, saturation voltage, and forward voltage are acceptable within the Darlington output class, provided the substitute part's ratings do not fall below the H11G2 specifications for critical parameters.

Parameter Comparison

Engineering Selection Recommendations

H11G2M (onsemi): This part maintains identical electrical specifications to the H11G2 with the exception of isolation voltage (4170Vrms versus 5300Vrms). The H11G2M is classified as active product status with RoHS3 compliance, making it suitable for applications where the lower isolation voltage rating is acceptable. The H11G2M is packaged in tube format and represents a direct onsemi product line continuation.

LTV-725V (Lite-On Inc.): This part provides 5000Vrms isolation voltage, which approaches the H11G2 specification. The LTV-725V offers higher maximum output voltage (300V versus 80V) and higher current output capability (150mA), making it suitable for applications requiring greater output drive capability. The LTV-725V is active product status with RoHS3 compliance. The operating temperature range is narrower (-25°C to 100°C) compared to the H11G2 (-55°C to 100°C), which may limit suitability for extended low-temperature applications.

Selection between substitutes depends on isolation voltage requirements, output voltage/current demands, and operating temperature range specifications of the target application.

Frequently Asked Questions (FAQ)

Q: Can H11G2M be used as a direct replacement for H11G2? A: H11G2M is electrically compatible for applications where 4170Vrms isolation voltage is sufficient. The H11G2M maintains identical current transfer ratio, output type, and package configuration. Verify that your application does not require the full 5300Vrms isolation rating of the original H11G2.

Q: What are the key differences between H11G2 and LTV-725V? A: The LTV-725V provides 5000Vrms isolation (versus 5300Vrms), higher maximum output voltage (300V versus 80V), and higher output current capability (150mA versus unspecified). The LTV-725V has a narrower operating temperature range (-25°C to 100°C versus -55°C to 100°C). Both use identical 6-DIP package footprints.

Q: Are all substitute parts pin-compatible with H11G2? A: All listed substitutes use the 6-DIP (0.300", 7.62mm) package with through-hole mounting. Verify pinout compatibility with your specific application schematic, as Darlington with base output configuration may have different pin assignments across manufacturers.

Q: Which substitute part is recommended for new designs? A: Both H11G2M and LTV-725V are active product status. H11G2M maintains onsemi product line continuity. LTV-725V offers enhanced output capabilities. Selection depends on isolation voltage requirements and output specifications of your application.

Q: What compliance certifications apply to substitute parts? A: H11G2M carries RoHS3 compliance. LTV-725V carries RoHS3 compliance. Both parts are REACH Unaffected and classified as EAR99 for export control purposes.