H11AA2TM Equivalent & Substitute Parts

Part Overview

The H11AA2TM is an optoisolator transistor with base output manufactured by onsemi, featuring 7500Vpk isolation voltage in a 6-DIP through-hole package. This component provides galvanic isolation for AC and DC input signals with a single transistor output channel rated for 50mA maximum output current.

The H11AA2TM is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this optoisolator.

Substiute Parts

H11AA2TM

onsemiIn Stock: 918H11AA2TM Datasheet

Current PartRFQ

H11AA1-X006

Vishay Semiconductor Opto DivisionIn Stock: 2649H11AA1-X006 Datasheet

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H11AA2G

Isocom Components 2004 LTDIn Stock: 1201H11AA2G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the H11AA2TM is determined by the following critical parameters:

• Single channel optoisolator architecture with transistor output and base connection
• Isolation voltage rating of 7500Vpk or higher
• Current transfer ratio minimum of 10% @ 10mA or greater
• Output stage specifications: maximum output voltage ≥30V, output current ≥50mA, Vce saturation ≤400mV
• Input compatibility: AC and DC input signal support
• Through-hole 6-DIP package with 0.400" (10.16mm) body width
• Operating temperature range spanning -40°C to 100°C or wider
• Moisture sensitivity level MSL 1 (Unlimited)

The substitute parts identified are H11AA1-X006 and H11AA2G. Both maintain the core functional requirements of single-channel optoisolation with transistor output and base connection in 6-DIP through-hole packages. Variations in isolation voltage rating, current transfer ratio, and operating temperature range are documented in the parameter comparison table below.

Parameter Comparison

Engineering Selection Recommendations

H11AA2G is the primary substitute for the H11AA2TM. Both components share identical package dimensions (6-DIP 0.400"), matching current output ratings (50mA), and equivalent Vce saturation characteristics (400mV). The H11AA2G is currently in active production status with RoHS3 compliance certification. The isolation voltage specification differs (7.5Vpk versus 7500Vpk); applications requiring the full 7500Vpk isolation rating must evaluate this parameter against actual system requirements.

H11AA1-X006 is a secondary substitute option. This component is in active production status and offers superior current transfer ratio performance (20% @ 10mA versus 10% @ 10mA). However, the package body width differs (0.300" versus 0.400"), which may require PCB layout verification for through-hole mounting compatibility. The isolation voltage is specified as 5300Vrms, which is lower than the H11AA2TM rating. This component is suitable only for applications where the reduced isolation voltage meets system requirements.

Both substitute parts maintain REACH Unaffected status and MSL 1 (Unlimited) moisture sensitivity classification, consistent with the original component.

Frequently Asked Questions (FAQ)

Q: Can H11AA2G directly replace H11AA2TM in existing PCB designs?

A: H11AA2G shares the same 6-DIP (0.400", 10.16mm) package dimensions and pin configuration as H11AA2TM, enabling direct through-hole mounting without PCB layout modification. Electrical parameters including output current (50mA), maximum output voltage (35V), and Vce saturation (400mV) are compatible. The isolation voltage specification differs; verify that your application does not require the full 7500Vpk rating specified for H11AA2TM.

Q: What is the key difference between H11AA1-X006 and H11AA2TM?

A: H11AA1-X006 features a narrower 6-DIP package body (0.300" versus 0.400"), which may affect PCB mounting hole spacing compatibility. The current transfer ratio is higher (20% @ 10mA versus 10% @ 10mA), and the isolation voltage is lower (5300Vrms versus 7500Vpk). PCB layout verification is required before substitution.

Q: Are both substitute parts RoHS compliant?

A: H11AA2G carries RoHS3 compliance certification. H11AA1-X006 also carries RoHS3 compliance certification. Both components maintain REACH Unaffected status, consistent with the original H11AA2TM.

Q: Which substitute part should I select for new designs?

A: H11AA2G is recommended for new designs due to active production status, matching package dimensions, and equivalent electrical performance. H11AA1-X006 is suitable only if the narrower package body and lower isolation voltage rating are acceptable for your application requirements.

Q: What is the operating temperature range difference between these parts?

A: H11AA2TM operates from -40°C to 100°C. H11AA2G operates from -30°C to 100°C, providing a narrower low-temperature range. H11AA1-X006 operates from -55°C to 100°C, providing an extended low-temperature range. Select based on your system's thermal operating requirements.