H11D4G Equivalent & Substitute Parts

Part Overview

The H11D4G is a single-channel optoisolator with transistor output and base connection, manufactured by Isocom Components 2004 LTD. This component provides galvanic isolation between input and output circuits with a maximum isolation voltage of 7.5Vpk and supports DC input signals. The part is classified as Active status and is suitable for applications requiring isolated signal transmission in industrial and consumer electronics. Alternative models within the H11D series are available to address inventory constraints or specific application requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

H11D4G

Isocom Components 2004 LTDIn Stock: 1220H11D4G Datasheet

Current PartRFQ

H11D3XG

Isocom Components 2004 LTDIn Stock: 974H11D3XG Datasheet

Parametric EquivalentRFQ

H11D4XG

Isocom Components 2004 LTDIn Stock: 1031H11D4XG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The H11D4G has two parametric equivalents within the H11D series: H11D3XG and H11D4XG. These parts are classified as direct substitutes based on the following criteria:

Substitution-Determining Parameters:

• Number of Channels: 1 (identical across all parts)
• Voltage - Isolation: 7.5Vpk (identical across all parts)
• Current Transfer Ratio (Min): 20% @ 10mA (identical across all parts)
• Output Type: Transistor with Base (identical across all parts)
• Voltage - Output (Max): 200V (identical across all parts)
• Current - Output / Channel: 100mA (identical across all parts)
• Voltage - Forward (Vf) (Typ): 1.2V (identical across all parts)
• Current - DC Forward (If) (Max): 60mA (identical across all parts)
• Vce Saturation (Max): 400mV (identical across all parts)
• Operating Temperature: -55°C ~ 100°C (identical across all parts)
• Package / Case: 6-DIP (0.400", 10.16mm) (identical across all parts)
• Mounting Type: Through Hole (identical across all parts)

All electrical performance characteristics, thermal operating range, and physical packaging specifications are identical across the H11D4G, H11D3XG, and H11D4XG. These parts are interchangeable at the functional level for applications requiring single-channel optoisolation with transistor output configuration.

Parameter Comparison

Engineering Selection Recommendations

All three parts—H11D4G, H11D3XG, and H11D4XG—maintain Active product status and are ROHS3 compliant with REACH Unaffected classification. Selection between these optoisolators should be based on availability and inventory status rather than electrical or mechanical performance differences, as all parameters are identical.

The H11D4G currently has 1141 pieces in stock, H11D3XG has 963 pieces, and H11D4XG has 948 pieces. For applications requiring immediate procurement, the H11D4G offers the highest inventory availability. All parts are supplied in Tube packaging with Through Hole mounting configuration suitable for standard PCB assembly processes.

Compliance certifications (ROHS3, REACH Unaffected, EAR99 ECCN classification, and HTSUS code 8541.49.8000) are consistent across all three parts, ensuring regulatory equivalence for international applications.

Frequently Asked Questions (FAQ)

Q: Are H11D3XG and H11D4XG direct replacements for H11D4G?

A: Yes. All electrical parameters, thermal specifications, and physical packaging are identical. These parts are functionally interchangeable in any application designed for the H11D4G.

Q: What determines substitutability for the H11D4G optoisolator?

A: Substitutability is determined by matching the following parameters: single-channel configuration, 7.5Vpk isolation voltage, 20% minimum current transfer ratio at 10mA input, transistor output with base connection, 200V maximum output voltage, 100mA output current capability, 1.2V typical forward voltage, 60mA maximum DC forward current, 400mV maximum Vce saturation, -55°C to 100°C operating temperature range, and 6-DIP through-hole package. All three parts meet these criteria identically.

Q: Can these parts be used interchangeably on the same PCB?

A: Yes. The 6-DIP (0.400", 10.16mm) package dimensions and through-hole mounting specifications are identical across all three parts. No PCB layout modifications are required for substitution.

Q: Are there any compliance or regulatory differences between these parts?

A: No. All three parts carry identical ROHS3 compliance, REACH Unaffected status, EAR99 ECCN classification, and HTSUS code 8541.49.8000. They are equivalent for regulatory and export purposes.

Q: What is the moisture sensitivity level for these optoisolators?

A: All three parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.