PD104R-684K Equivalent & Substitute Parts

Part Overview

The PD104R-684K is a 680 µH unshielded drum core wirewound inductor manufactured by API Delevan Inc., designed for surface mount applications with a current rating of 280 mA and maximum DC resistance of 2.3 Ohm. This component is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this inductor category.

Substiute Parts

PD104R-684K

API Delevan Inc.In Stock: 795PD104R-684K Datasheet

Current PartRFQ

SDR1006-681KL

Bourns Inc.In Stock: 6610SDR1006-681KL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PD104R-684K is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Inductance value: 680 µH (±10% tolerance band)
• Current rating: minimum 280 mA
• DC resistance: within acceptable operating limits for the application
• Core material: Ferrite drum core construction
• Shielding configuration: Unshielded

Mechanical Equivalence Criteria:

• Mounting type: Surface Mount
• Package classification: Nonstandard drum core form factor
• Operating temperature range: minimum -40°C to 125°C overlap

Compliance Criteria:

• RoHS3 compliance required
• Moisture sensitivity level: MSL 1 (Unlimited)
• Active product status

The SDR1006-681KL from Bourns Inc. meets all substitution criteria within these parameters.

Parameter Comparison

Engineering Selection Recommendations

PD104R-684K Selection Basis:

• Primary choice when operating temperature range must extend to -55°C
• API Delevan manufacturer specification required
• Current inventory: 781 pieces available

SDR1006-681KL Selection Basis:

• Functionally equivalent for applications within -40°C to 125°C range
• Lower DC resistance (2.25 Ohm vs. 2.3 Ohm maximum) provides improved efficiency
• Higher saturation current (650 mA vs. 280 mA) offers additional design margin
• Bourns manufacturer specification required
• Current inventory: 6600 pieces available
• Both components maintain ROHS3 compliance and MSL 1 rating

Component selection between these two parts depends on manufacturer preference, temperature range requirements, and inventory availability. Both parts satisfy the core electrical and mechanical specifications for 680 µH surface mount inductor applications.

Frequently Asked Questions (FAQ)

Q: Can SDR1006-681KL replace PD104R-684K in all applications?

A: SDR1006-681KL is functionally equivalent for applications operating within -40°C to 125°C. Applications requiring operation below -40°C must use PD104R-684K to maintain the specified -55°C lower temperature limit.

Q: What is the significance of the different saturation current ratings?

A: PD104R-684K has saturation current of 280 mA, matching its rated current. SDR1006-681KL has saturation current of 650 mA, indicating higher current handling capability before inductance degradation occurs. This difference does not affect substitution for applications operating at or below 280 mA.

Q: Are the physical dimensions compatible?

A: Both components use nonstandard drum core packages. PD104R-684K dimensions are 9.80mm L × 8.79mm W × 4.00mm H. SDR1006-681KL dimensions are 9.80mm L × 9.80mm W × 5.80mm H. Width and height differences require PCB layout verification before substitution.

Q: Do both parts meet the same compliance standards?

A: Yes. Both PD104R-684K and SDR1006-681KL are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating. Both are classified as Active products.

Q: What is the DC resistance difference impact?

A: SDR1006-681KL has maximum DC resistance of 2.25 Ohm compared to PD104R-684K at 2.3 Ohm maximum. This 0.05 Ohm difference represents approximately 2% lower resistance, resulting in reduced power dissipation and improved thermal performance in the substitute part.