H11D2 Optoisolator Equivalent & Substitute Parts

Part Overview

The H11D2 is an optoisolator transistor with base output manufactured by onsemi, designed for high-voltage isolation applications requiring 5300Vrms isolation capability. This component features a single-channel configuration with transistor output and integrated base connection, housed in a 6-DIP through-hole package. The H11D2 is classified as obsolete, making identification of equivalent parts essential for ongoing system support and component procurement.

Substiute Parts

H11D2

onsemiIn Stock: 1548H11D2 Datasheet

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H11D2

onsemiIn Stock: 1548H11D2 Datasheet

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H11D2

onsemiIn Stock: 1548H11D2 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the H11D2 optoisolator is determined by strict equivalence across the following critical parameters:

• Isolation Voltage: 5300Vrms minimum
• Number of Channels: Single channel (1)
• Output Configuration: Transistor with Base
• Maximum Output Voltage: 300V or greater
• Output Current Capability: 100mA or greater per channel
• Current Transfer Ratio: 20% minimum at 10mA input
• Package Type: 6-DIP through-hole form factor
• Operating Temperature Range: -55°C to 100°C minimum

All substitute parts must match these parameters exactly to ensure functional and mechanical compatibility within existing circuit designs.

Parameter Comparison

Engineering Selection Recommendations

The H11D2 is classified as obsolete. Component selection for replacement applications must prioritize parts with identical electrical specifications and 6-DIP through-hole packaging to ensure direct compatibility with existing PCB layouts and circuit designs.

Compliance considerations include REACH status (REACH Unaffected) and ECCN classification (EAR99), which apply to the H11D2 and must be verified for substitute parts to ensure regulatory alignment in procurement and export scenarios.

Moisture Sensitivity Level (MSL) rating of 1 (Unlimited) indicates no moisture sensitivity constraints during storage and handling.

Frequently Asked Questions (FAQ)

Q: What makes the H11D2 substitutable with another optoisolator?

A: Substitution requires exact matching of isolation voltage (5300Vrms), single-channel configuration, transistor-with-base output type, maximum output voltage (300V), output current capability (100mA), current transfer ratio (20% minimum), and 6-DIP through-hole package format.

Q: Can the H11D2 be replaced with a different package type?

A: No. The 6-DIP through-hole package is a mechanical requirement for PCB compatibility. Alternative package types (such as surface-mount variants) are not direct substitutes without circuit board redesign.

Q: Does the operating temperature range affect substitution?

A: Yes. Substitute parts must support the full operating temperature range of -55°C to 100°C. Parts with narrower temperature ranges are not equivalent.

Q: What is the significance of the 5µs turn-on and turn-off times?

A: These timing specifications define the switching speed of the optoisolator. Substitute parts must match these values to maintain circuit timing performance and signal integrity.

Q: How does the current transfer ratio impact part selection?

A: The minimum 20% current transfer ratio at 10mA input determines the optical coupling efficiency. Substitute parts must meet or exceed this specification to ensure reliable signal transmission across the isolation barrier.

Q: Is the Vce saturation specification critical for substitution?

A: Yes. The 400mV maximum Vce saturation directly affects output voltage levels and power dissipation in the output transistor stage. Substitute parts must match this specification.