PD104R-273K Equivalent & Substitute Parts Reference

Part Overview

The PD104R-273K is a 27 µH unshielded drum core wirewound inductor manufactured by API Delevan Inc., designed for surface mount applications. This component features a current rating of 1.45 A with a maximum DC resistance of 110 mOhm and operates across the temperature range of -55°C to 125°C. The part is ROHS3 compliant and carries an active product status. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility allow direct replacement in circuit designs.

Substiute Parts

PD104R-273K

API Delevan Inc.In Stock: 1128PD104R-273K Datasheet

Current PartRFQ

SDR1006-270KL

Bourns Inc.In Stock: 19047SDR1006-270KL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PD104R-273K is determined by the following critical parameters:

Primary Electrical Criteria:

• Inductance value: 27 µH at 1 kHz test frequency
• Inductance tolerance: ±10%
• DC resistance: 110 mOhm maximum
• Core type: Ferrite, unshielded drum core
• Mounting: Surface mount configuration

Secondary Electrical Criteria:

• Current rating must equal or exceed 1.45 A
• Operating temperature range must encompass or exceed -55°C to 125°C

Mechanical & Compliance Criteria:

• Package classification: Nonstandard
• RoHS3 compliance required
• Moisture sensitivity level: 1 (Unlimited)
• REACH unaffected status

The SDR1006-270KL from Bourns Inc. qualifies as a substitute part because it maintains the same inductance value, tolerance, DC resistance specification, core material, and shielding configuration. The substitute part exceeds the current rating requirement (1.75 A versus 1.45 A) and maintains full compliance with RoHS3 and REACH requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: PD104R-273K

The PD104R-273K remains the primary choice when the extended lower temperature operating range of -55°C is required. This part is active in production with 1018 units in stock and carries full ROHS3 compliance and REACH unaffected status.

Substitute Selection: SDR1006-270KL

The SDR1006-270KL from Bourns Inc. is suitable for applications where the operating temperature range of -40°C to 125°C is acceptable. This substitute provides higher current saturation capability (3.4 A versus 1.45 A) and additional performance data including Q factor (25 @ 2.52 MHz) and self-resonant frequency (11 MHz). The substitute maintains identical inductance, tolerance, and DC resistance specifications. Both parts are ROHS3 compliant and carry unlimited moisture sensitivity rating. Inventory availability for the substitute is significantly higher at 18,967 units.

Frequently Asked Questions (FAQ)

Q: Can SDR1006-270KL replace PD104R-273K in all applications?

A: The SDR1006-270KL is electrically and mechanically compatible for applications operating within the -40°C to 125°C temperature range. If your circuit requires operation below -40°C, the PD104R-273K with its -55°C lower limit is required.

Q: Are the physical dimensions compatible?

A: Both parts are classified as nonstandard package types. The PD104R-273K measures 0.386" L x 0.346" W x 0.157" H (9.80mm x 8.79mm x 4.00mm). The SDR1006-270KL measures 0.386" L x 0.386" W x 0.228" H (9.80mm x 9.80mm x 5.80mm). The substitute is slightly larger in width and height. PCB layout verification is required before substitution.

Q: Do both parts have identical electrical performance?

A: Both parts share the same inductance value (27 µH), tolerance (±10%), and DC resistance (110 mOhm max). The SDR1006-270KL provides higher current rating (1.75 A versus 1.45 A) and saturation current (3.4 A versus 1.45 A), making it suitable for higher current applications.

Q: What compliance certifications apply to both parts?

A: Both the PD104R-273K and SDR1006-270KL are ROHS3 compliant, REACH unaffected, and carry moisture sensitivity level 1 (unlimited). Both are classified under HTSUS code 8504.50.4000 and ECCN EAR99.

Q: Which part should I select for new designs?

A: Selection depends on temperature range requirements. For designs requiring -55°C operation, specify PD104R-273K. For designs operating within -40°C to 125°C, either part is acceptable; SDR1006-270KL offers higher current capability and greater inventory availability.