H22A2 Equivalent & Substitute Parts

Part Overview

The H22A2 is an optical sensor manufactured by onsemi, designed as a through-beam phototransistor with slotted, PC pin configuration. This component operates with a 0.118" (3mm) sensing distance and is classified as an unamplified optical sensor. The H22A2 is currently listed as obsolete, making identification of equivalent and substitute parts essential for ongoing system support and component procurement.

Substiute Parts

H22A2

onsemiIn Stock: 5925H22A2 Datasheet

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H22A2

onsemiIn Stock: 5925H22A2 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the H22A2 must satisfy the following critical parameters to ensure functional equivalence:

• Sensing Distance: 0.118" (3mm) through-beam configuration
• Output Configuration: Phototransistor output type
• Electrical Specifications: Maximum DC forward current of 60 mA and collector-emitter breakdown voltage of 30 V
• Response Time: 8µs or 50µs performance characteristics
• Operating Temperature: -55°C to 100°C range
• Mounting and Package: Through hole mounting with flange and slotted PC pin configuration
• Sensor Type: Unamplified optical sensor

Substitution is valid only when all specified parameters match or exceed the original component's ratings within the defined tolerances for optical sensor applications.

Parameter Comparison

Engineering Selection Recommendations

The H22A2 is classified as obsolete. When selecting substitute components, prioritize parts that maintain identical electrical and mechanical specifications to ensure direct compatibility in existing circuit designs and mechanical assemblies.

Compliance certifications including REACH status (REACH Unaffected) and ECCN classification (EAR99) should be verified for the substitute part to ensure regulatory alignment with the original component.

The moisture sensitivity level (MSL 1 - Unlimited) indicates no special handling requirements during storage or assembly, a characteristic that should be maintained in substitute selections.

Frequently Asked Questions (FAQ)

Q: What makes a part a valid substitute for the H22A2?

A: A valid substitute must match all specified parameters: 0.118" (3mm) through-beam sensing distance, phototransistor output configuration, 60 mA maximum DC forward current, 30 V collector-emitter breakdown voltage, 8µs or 50µs response time, -55°C to 100°C operating temperature range, through-hole flange mounting, and slotted PC pin package configuration.

Q: Can I use a different sensing distance optical sensor as a substitute?

A: No. The sensing distance is a critical parameter that determines the functional application of the sensor. Substitutes must maintain the 0.118" (3mm) specification.

Q: Are there any packaging considerations when replacing the H22A2?

A: Yes. The H22A2 uses slotted PC pins with through-hole flange mounting. Any substitute must use identical packaging to ensure mechanical compatibility with existing PCB layouts and mechanical fixtures.

Q: Does the obsolete status affect substitute selection?

A: The obsolete status indicates the component is no longer in active production. Substitute parts should be selected based on electrical and mechanical equivalence. Inventory availability may vary by distributor.

Q: What is the significance of the unamplified sensor type?

A: The unamplified designation means the sensor provides direct phototransistor output without integrated signal conditioning or amplification. Substitutes must maintain this output type to preserve circuit compatibility.