PE-53651 Equivalent & Substitute Parts

Part Overview

The PE-53651 is a 5.1 µH unshielded toroidal inductor manufactured by Pulse Electronics, rated for 5.4 A continuous current with a maximum DC resistance of 17.7 mOhm. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design support and procurement continuity. The SLIC series toroidal inductor is designed for surface mount applications in nonstandard packaging configurations.

Substiute Parts

PE-53651

Pulse ElectronicsIn Stock: 1176PE-53651 Datasheet

Current PartRFQ

PE-53651NL

Pulse ElectronicsIn Stock: 2516PE-53651NL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PE-53651 is determined by strict equivalence across the following electrical and mechanical parameters:

• Inductance value: 5.1 µH (exact match required)
• Current rating: 5.4 A (exact match required)
• DC resistance: 17.7 mOhm maximum (exact match required)
• Inductor type: Toroidal configuration
• Shielding classification: Unshielded
• Mounting technology: Surface mount
• Physical footprint: 0.570" L x 0.565" W x 0.360" H maximum seated height
• Operating temperature range: -40°C to 130°C

The PE-53651NL meets all electrical and mechanical substitution criteria as a direct equivalent part. The primary distinction between these parts is product status and packaging configuration, not functional performance.

Parameter Comparison

Engineering Selection Recommendations

The PE-53651NL is the direct functional equivalent to the obsolete PE-53651. Both parts are manufactured by Pulse Electronics within the SLIC series and maintain identical electrical specifications and physical dimensions. Selection between these parts should be based on the following factors:

PE-53651NL advantages: Active product status ensures long-term availability and supply chain continuity. ROHS3 compliance satisfies regulatory requirements for new designs and procurement in regulated markets. Higher inventory levels (2480 Pcs) support immediate availability. Bulk packaging configuration reduces per-unit cost for volume applications.

PE-53651 considerations: Remaining inventory of 1094 pieces may be suitable for legacy system maintenance or repair applications where RoHS non-compliance does not present regulatory constraints.

For new designs and ongoing production, PE-53651NL is the appropriate selection due to active product status and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can PE-53651NL be used as a direct replacement for PE-53651 in existing designs?

A: Yes. The PE-53651NL is electrically and mechanically identical to the PE-53651. All electrical parameters (inductance, current rating, DC resistance) and physical dimensions are equivalent. The parts are interchangeable at the component level.

Q: What is the difference between PE-53651 and PE-53651NL?

A: The primary differences are product status, packaging format, and regulatory compliance. PE-53651 is obsolete with standard packaging, while PE-53651NL is an active product supplied in bulk packaging with ROHS3 compliance certification. Electrical performance and physical form factor are identical.

Q: Why is the PE-53651 listed as obsolete?

A: Obsolete status indicates that Pulse Electronics has discontinued active production and support for this part number. The PE-53651NL serves as the active equivalent for ongoing procurement and design applications.

Q: Are there any compatibility concerns when substituting PE-53651NL for PE-53651?

A: No compatibility concerns exist. The nonstandard package dimensions, surface mount configuration, and operating temperature range are identical between both parts. PCB footprints and thermal characteristics remain unchanged.

Q: Does RoHS compliance affect electrical performance?

A: No. RoHS3 compliance in the PE-53651NL reflects material composition standards and does not alter electrical specifications, inductance value, current rating, or DC resistance characteristics.

Q: What packaging quantities are available for each part?

A: PE-53651 is available in standard packaging with 1094 pieces in stock. PE-53651NL is supplied in bulk packaging with 2480 pieces available. Bulk packaging typically offers cost advantages for volume procurement.