PM75-820K Equivalent & Substitute Parts

Part Overview

The PM75-820K is an 82 µH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 780 mA with a maximum DC resistance of 370mOhm. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and procurement continuity. The part operates across a temperature range of -30°C to 100°C and is mounted as a surface mount device in a nonstandard package measuring 7.80mm x 7.80mm.

Substiute Parts

PM75-820K

Bourns Inc.In Stock: 806PM75-820K Datasheet

Current PartRFQ

SDR0805-820KL

Bourns Inc.In Stock: 1948SDR0805-820KL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PM75-820K is determined by strict equivalence across the following electrical and mechanical parameters:

• Inductance value: 82 µH with ±10% tolerance
• Current rating: 780 mA minimum
• DC resistance: 370mOhm maximum
• Core type: Ferrite, unshielded drum core wirewound construction
• Mounting: Surface mount, nonstandard package
• Physical dimensions: 7.80mm x 7.80mm footprint with 5.30mm maximum seated height

The SDR0805-820KL meets all specified electrical and mechanical requirements for direct substitution. Both parts share identical inductance, current rating, DC resistance specifications, core material, and physical dimensions. The substitute part is manufactured by the same supplier (Bourns Inc.) and maintains compatibility with the original design envelope.

Parameter Comparison

Engineering Selection Recommendations

The SDR0805-820KL is the direct equivalent substitute for the obsolete PM75-820K. Both parts are manufactured by Bourns Inc. and provide identical electrical performance and physical compatibility.

The SDR0805-820KL offers additional advantages for new designs and ongoing procurement:

• Active product status ensures long-term availability and supply chain continuity
• ROHS3 compliance meets current environmental and regulatory requirements
• Tape & Reel packaging provides standard handling and automated assembly compatibility
• Extended operating temperature range (-40°C to 125°C) provides broader thermal margin compared to the original part (-30°C to 100°C)

For applications currently using the PM75-820K, direct substitution with the SDR0805-820KL requires no circuit modifications or design changes. All electrical and mechanical parameters remain equivalent.

Frequently Asked Questions (FAQ)

Q: Can the SDR0805-820KL be used as a direct replacement for the PM75-820K?

A: Yes. Both parts share identical inductance (82 µH), current rating (780 mA), DC resistance (370mOhm max), core material (ferrite), shielding (unshielded), and physical dimensions (7.80mm x 7.80mm x 5.30mm max height). No circuit modifications are required.

Q: What is the difference in operating temperature range between these parts?

A: The PM75-820K operates from -30°C to 100°C. The SDR0805-820KL operates from -40°C to 125°C. The substitute part provides extended temperature coverage at both lower and upper limits.

Q: Why is the PM75-820K listed as obsolete?

A: The PM75-820K is an older product designation. The SDR0805-820KL is the current active equivalent from Bourns Inc. and is recommended for all new designs and replacement procurement.

Q: Are there packaging differences between these parts?

A: The PM75-820K uses nonstandard packaging. The SDR0805-820KL is supplied in standard Tape & Reel (TR) format, which is compatible with automated assembly equipment and provides improved handling and storage characteristics.

Q: Does the SDR0805-820KL meet RoHS compliance requirements?

A: Yes. The SDR0805-820KL is ROHS3 compliant. The original PM75-820K is RoHS non-compliant. For applications requiring RoHS compliance, the SDR0805-820KL is the appropriate selection.

Q: Are the physical footprints identical?

A: Yes. Both parts have identical surface mount footprints of 7.80mm x 7.80mm with a maximum seated height of 5.30mm. PCB layout modifications are not required for substitution.