H11G2SD Optoisolator Equivalent & Substitute Parts

Part Overview

The H11G2SD is a 6-SMD surface mount optoisolator with Darlington output and base connection, manufactured by onsemi. This component provides 5300Vrms isolation voltage and is designed for applications requiring high-voltage galvanic isolation with Darlington output configuration. The H11G2SD is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements.

Substiute Parts

H11G2SD

onsemiIn Stock: 3120H11G2SD Datasheet

Current PartRFQ

H11G2SM

onsemiIn Stock: 2873H11G2SM Datasheet

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H11G2SR2M

onsemiIn Stock: 19295H11G2SR2M Datasheet

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H11G2SM

onsemiIn Stock: 2873H11G2SM Datasheet

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H11G2SMT&R

Isocom Components 2004 LTDIn Stock: 958H11G2SMT&R Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the H11G2SD is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Output Type: Darlington with Base (mandatory match)
• Number of Channels: 1 (mandatory match)
• Voltage - Output (Max): 80V (mandatory match)
• Vce Saturation (Max): 1V (mandatory match)
• Current Transfer Ratio (Min): 1000% @ 10mA (mandatory match)
• Voltage - Forward (Vf) (Typ): 1.3V (mandatory match)
• Current - DC Forward (If) (Max): 60 mA (mandatory match)

Mechanical Compatibility Requirements:

• Mounting Type: Surface Mount (mandatory match)
• Package / Case: 6-SMD, Gull Wing (mandatory match)

Isolation Voltage Consideration: The H11G2SD provides 5300Vrms isolation. Substitute parts with lower isolation voltage (4170Vrms) remain functionally compatible for applications not requiring the full 5300Vrms specification. Parts with significantly different isolation specifications (such as 7.5Vpk) fall outside the substitution range.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (H11G2SM and H11G2SR2M):

H11G2SM and H11G2SR2M are direct functional equivalents manufactured by onsemi with active product status. Both parts maintain identical electrical characteristics including 1000% current transfer ratio, 80V maximum output voltage, and 1V maximum Vce saturation. The primary difference is packaging format: H11G2SM is supplied in Tube packaging, while H11G2SR2M is supplied in Cut Tape (CT) & Digi-Reel format. Both are ROHS3 compliant and REACH unaffected. The reduced isolation voltage (4170Vrms versus 5300Vrms) is acceptable for applications not requiring the full isolation specification of the obsolete H11G2SD. Operating temperature range is reduced to -40°C ~ 100°C compared to the original -55°C ~ 100°C.

Alternative Substitute (H11G2SMT&R):

H11G2SMT&R, manufactured by Isocom Components 2004 LTD, maintains the same 6-SMD Gull Wing package and Darlington with Base output configuration. This part is supplied in Tape & Reel (TR) format and is ROHS3 compliant. However, H11G2SMT&R exhibits deviations in several parameters: isolation voltage is specified as 7.5Vpk (significantly lower than the original 5300Vrms), Vce saturation is 1.2V (versus 1V), current DC forward maximum is 50 mA (versus 60 mA), and operating temperature range is -25°C ~ 100°C. Current transfer ratio is not specified. This part is suitable only for applications with relaxed isolation voltage requirements.

Frequently Asked Questions (FAQ)

Q: Can H11G2SM or H11G2SR2M be used as direct replacements for H11G2SD?

A: Yes. Both H11G2SM and H11G2SR2M are functionally equivalent to H11G2SD in terms of electrical performance and package configuration. The primary consideration is isolation voltage: H11G2SM and H11G2SR2M provide 4170Vrms isolation compared to H11G2SD's 5300Vrms. For applications requiring the full 5300Vrms isolation specification, these substitutes are not suitable. For applications with lower isolation voltage requirements, these parts are compatible.

Q: What is the difference between H11G2SM and H11G2SR2M?

A: H11G2SM and H11G2SR2M are electrically identical. The difference is packaging format: H11G2SM is supplied in Tube packaging, while H11G2SR2M is supplied in Cut Tape (CT) & Digi-Reel format. Selection depends on assembly process requirements and inventory management preferences.

Q: Is H11G2SMT&R a suitable substitute?

A: H11G2SMT&R maintains the same package type and output configuration but has significant parameter deviations. The isolation voltage specification (7.5Vpk) is substantially lower than the original H11G2SD (5300Vrms), and current transfer ratio is not specified. This part is suitable only for applications with minimal isolation voltage requirements and where current transfer ratio specification is not critical.

Q: What are the temperature operating range differences?

A: H11G2SD operates from -55°C to 100°C. H11G2SM and H11G2SR2M operate from -40°C to 100°C, reducing the lower temperature limit by 15°C. H11G2SMT&R operates from -25°C to 100°C, further reducing the lower temperature limit. For applications requiring operation below -40°C, H11G2SM and H11G2SR2M are not suitable.

Q: Are all substitute parts RoHS compliant?

A: H11G2SM, H11G2SR2M, and H11G2SMT&R are all ROHS3 compliant. The original H11G2SD does not specify RoHS status. All substitute parts are REACH unaffected.

Q: What packaging formats are available?

A: H11G2SM is supplied in Tube packaging. H11G2SR2M is supplied in Cut Tape (CT) & Digi-Reel format. H11G2SMT&R is supplied in Tape & Reel (TR) format. Selection depends on assembly equipment compatibility and production volume requirements.