SDR2207-7R8ML Equivalent & Substitute Parts

Part Overview

The SDR2207-7R8ML is a 7.8 µH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 7.5 A continuous current with a maximum DC resistance of 20 mOhm. This component is classified as Active and is ROHS3 compliant. Substitute parts are necessary when the primary manufacturer part is unavailable, when supply chain optimization is required, or when design flexibility permits equivalent electrical and mechanical performance from alternative manufacturers.

Substiute Parts

SDR2207-7R8ML

Bourns Inc.In Stock: 986SDR2207-7R8ML Datasheet

Current PartRFQ

P1252.782NLT

Pulse ElectronicsIn Stock: 2857P1252.782NLT Datasheet

DirectRFQ

P1252.782NL

Pulse ElectronicsIn Stock: 2549P1252.782NL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SDR2207-7R8ML are qualified based on the following electrical and mechanical parameters:

• Inductance value: 7.8 µH (exact match required)
• Tolerance: ±20% (exact match required)
• Current rating: 7.5 A minimum (exact match required)
• Saturation current: 11 A minimum (exact match required)
• DC resistance: 20 mOhm maximum (lower or equal values acceptable)
• Shielding configuration: Unshielded (exact match required)
• Operating temperature range: Minimum -40°C to +125°C (equal or wider range acceptable)
• Mounting type: Surface Mount (exact match required)
• Inductance test frequency: 100 kHz (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)
• Moisture sensitivity: MSL 1 (exact match required)

The substitute parts listed below meet all critical electrical parameters and are manufactured by Pulse Electronics under the P1252NL series.

Parameter Comparison

Engineering Selection Recommendations

Both P1252.782NLT and P1252.782NL are qualified substitutes for the SDR2207-7R8ML based on electrical equivalence and compliance certifications. All three parts are Active products with ROHS3 compliance and REACH unaffected status.

The Pulse Electronics substitutes offer improved DC resistance performance (18 mOhm maximum versus 20 mOhm maximum), resulting in lower power dissipation. The operating temperature range of the Pulse parts extends to 130°C, providing a 5°C margin above the Bourns specification.

Dimensional variations are minimal. The Pulse parts are slightly larger in length and width (22.33mm x 15.14mm versus 22.00mm x 15.00mm) but have a lower seated height (7.49mm versus 7.80mm). These dimensional differences must be evaluated against specific PCB layout constraints.

P1252.782NLT is supplied in Tape & Reel packaging, while P1252.782NL packaging information is not specified. Selection between these two Pulse variants should be based on procurement and assembly process requirements.

Frequently Asked Questions (FAQ)

Q: Can P1252.782NLT or P1252.782NL be used as direct replacements for SDR2207-7R8ML?

A: Yes. Both Pulse Electronics parts meet all critical electrical parameters: 7.8 µH inductance, ±20% tolerance, 7.5 A current rating, 11 A saturation current, unshielded configuration, and 100 kHz test frequency. All three parts are ROHS3 compliant and MSL 1 rated.

Q: What are the differences in DC resistance between these parts?

A: The SDR2207-7R8ML has a maximum DC resistance of 20 mOhm. Both P1252.782NLT and P1252.782NL have a maximum DC resistance of 18 mOhm, representing a 10% improvement in resistance performance.

Q: Are there temperature rating differences?

A: The SDR2207-7R8ML operates from -40°C to 125°C. The Pulse Electronics substitutes operate from -40°C to 130°C, providing a 5°C higher upper temperature limit.

Q: What are the physical dimension differences?

A: The SDR2207-7R8ML measures 22.00mm length x 15.00mm width x 7.80mm height (seated). The Pulse parts measure 22.33mm length x 15.14mm width x 7.49mm height (seated). Length and width are slightly larger; height is slightly smaller. PCB layout compatibility must be verified.

Q: What is the difference between P1252.782NLT and P1252.782NL?

A: Both parts are electrically identical. P1252.782NLT is specified with Tape & Reel packaging. P1252.782NL packaging is not specified in the provided data. Selection should be based on procurement format and assembly process requirements.

Q: Are all three parts currently available?

A: Yes. SDR2207-7R8ML has 961 pieces in stock. P1252.782NLT has 2765 pieces in stock. P1252.782NL has 2495 pieces in stock. All three parts are classified as Active products.