H2005A LAN Pulse Transformer Equivalent & Substitute Parts

Part Overview

The H2005A is a LAN Pulse Transformer module manufactured by Pulse Electronics, designed for VoIP dual-line LAN applications. This component features a 1CT:1CT turns ratio configuration in a 24-SOIC surface mount package. The H2005A is classified as obsolete, making identification of suitable substitute parts essential for ongoing system support and new design implementations where legacy component compatibility is required.

Substiute Parts

H2005A

Pulse ElectronicsIn Stock: 2517H2005A Datasheet

Current PartRFQ

H2005ANL

Pulse ElectronicsIn Stock: 1333H2005ANL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the H2005A is determined by strict alignment of the following critical parameters:

• Transformer Type: LAN (identical functional classification)
• Turns Ratio - Primary:Secondary: 1CT:1CT (electrical performance equivalence)
• Mounting Type: Surface Mount (PCB assembly compatibility)
• Package Type: 24-SOIC (footprint and pinout compatibility)
• Physical Dimensions: 0.510" L x 0.600" W, Height 0.290" max (board layout fit)
• Operating Temperature Range: 0°C ~ 70°C (thermal operating envelope)

The H2005ANL meets all substitution criteria and is classified as a direct manufacturer equivalent with active product status.

Parameter Comparison

Engineering Selection Recommendations

The H2005ANL is a direct functional equivalent to the H2005A with identical electrical and mechanical specifications. The primary distinction is product lifecycle status: the H2005A is obsolete while the H2005ANL maintains active manufacturing status.

For new designs and ongoing production support, the H2005ANL is the appropriate selection. This part offers improved regulatory compliance through ROHS3 certification and enhanced moisture handling characteristics (MSL 3 versus MSL 4), providing superior reliability in storage and assembly environments.

Both parts share identical REACH and ECCN classifications, ensuring equivalent regulatory treatment in international supply chains.

Frequently Asked Questions (FAQ)

Q: Can the H2005ANL be used as a direct replacement for the H2005A in existing designs?

A: Yes. The H2005ANL is electrically and mechanically identical to the H2005A. Both parts feature the same 1CT:1CT turns ratio, 24-SOIC package footprint, and physical dimensions. PCB layouts and schematics require no modification.

Q: What is the significance of the RoHS compliance difference?

A: The H2005A is RoHS non-compliant while the H2005ANL is ROHS3 compliant. For applications subject to RoHS regulations or customer requirements mandating RoHS compliance, the H2005ANL is the required selection.

Q: How do the Moisture Sensitivity Levels differ?

A: The H2005A carries MSL 4 (72-hour floor life) while the H2005ANL carries MSL 3 (168-hour floor life). MSL 3 provides extended handling time before reflow soldering, reducing risk of moisture-induced defects during assembly.

Q: Are there any pinout or footprint differences between these parts?

A: No. Both parts use the 24-SOIC package with identical pinout and footprint. No PCB redesign is necessary.

Q: Why is the H2005A listed as obsolete?

A: The H2005A has been superseded by the H2005ANL. Pulse Electronics maintains the H2005ANL as the active production part for this transformer module category.