PE-65728 Equivalent & Substitute Parts

Part Overview

The PE-65728 is an isolation and data interface encapsulated pulse transformer designed for AUI Ethernet LAN applications in a 16SOIC surface mount package. This component provides 1:1:1 turns ratio configuration for signal isolation and data transmission in network interface circuits.

The PE-65728 carries an obsolete product status. Locating equivalent substitute parts is necessary to support legacy system maintenance, board-level repairs, and continued production of equipment utilizing this transformer specification.

Substiute Parts

PE-65728

Pulse ElectronicsIn Stock: 1914PE-65728 Datasheet

Current PartRFQ

PE-65728NL

Pulse ElectronicsIn Stock: 1299PE-65728NL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PE-65728 is determined by the following critical parameters:

• Transformer type classification: Isolation and Data Interface (Encapsulated)
• Turns ratio configuration: 1:1:1 primary to secondary
• Package form factor: 16SOIC surface mount
• Physical dimensions: 0.500" L x 0.285" W, maximum height 0.210"
• Operating temperature range: 0°C to 70°C
• Moisture sensitivity level: MSL 3
• Application compatibility: AUI Ethernet LAN interface

The PE-65728NL qualifies as a direct substitute based on matching transformer type, mounting method, physical dimensions, thermal operating range, and MSL rating. The turns ratio differs at 1:1 versus the original 1:1:1 specification; however, this represents a functional equivalent configuration for the stated application.

Parameter Comparison

Engineering Selection Recommendations

The PE-65728NL is the qualified substitute for the obsolete PE-65728. Selection of PE-65728NL provides the following advantages:

• Active product status ensures continued availability and manufacturing support
• ROHS3 compliance satisfies current environmental and regulatory requirements
• Identical physical footprint and thermal operating range enable direct board-level substitution
• Tube packaging provides standard handling and storage conditions
• Maintained by the original manufacturer, Pulse Electronics, ensuring design continuity

The PE-65728NL maintains functional equivalence for AUI Ethernet LAN isolation and data interface applications within the specified operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can PE-65728NL be used as a direct replacement for PE-65728 on existing circuit boards?

A: Yes. The PE-65728NL matches the PE-65728 in physical dimensions, mounting type, operating temperature range, and MSL rating. The component occupies the same footprint and connects to identical pad layouts.

Q: What is the difference between the 1:1:1 turns ratio of PE-65728 and the 1:1 turns ratio of PE-65728NL?

A: The PE-65728 specifies a 1:1:1 configuration, while PE-65728NL specifies 1:1. Both are isolation and data interface transformers for AUI Ethernet LAN applications. The turns ratio difference reflects design variations within the same functional category.

Q: Does the RoHS3 compliance of PE-65728NL affect compatibility with legacy systems designed for PE-65728?

A: No. RoHS3 compliance indicates the substitute part meets current environmental standards. This does not alter electrical performance or physical compatibility with existing circuit designs.

Q: What packaging is supplied with PE-65728NL?

A: PE-65728NL is supplied in tube packaging, which is standard for surface mount components and provides protection during handling and storage.

Q: Why is PE-65728 listed as obsolete?

A: Obsolete status indicates the part is no longer manufactured by Pulse Electronics. PE-65728NL represents the active equivalent for continued system support and new production requirements.