PD104R-334K Equivalent & Substitute Parts

Part Overview

The PD104R-334K is a 330 µH unshielded drum core wirewound inductor manufactured by API Delevan Inc., rated for 420 mA with a maximum DC resistance of 1.1Ohm. This surface mount component operates across the temperature range of -55°C to 125°C and is ROHS3 compliant. The part is currently active in production with 1101 pieces available in stock. Equivalent and substitute parts are identified when design requirements permit tolerance in physical dimensions, operating temperature ranges, or current ratings while maintaining the core electrical specifications of 330 µH inductance at ±10% tolerance.

Substiute Parts

PD104R-334K

API Delevan Inc.In Stock: 1178PD104R-334K Datasheet

Current PartRFQ

22R334MC

Murata Power Solutions Inc.In Stock: 261122R334MC Datasheet

SimilarRFQ

SDR1006-331KL

Bourns Inc.In Stock: 1471SDR1006-331KL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PD104R-334K is determined by the following electrical and mechanical parameters:

Primary Electrical Criteria:

• Inductance value of 330 µH at ±10% tolerance
• Unshielded configuration
• Surface mount packaging
• ROHS3 compliance

Secondary Electrical Criteria (Allowable Variation):

• Current rating of 420 mA or higher
• DC resistance within 1.1Ohm to 1.21Ohm range
• Operating temperature range that encompasses or exceeds -55°C to 125°C

Mechanical Criteria (Allowable Variation):

• Nonstandard package case
• Physical dimensions compatible with board layout constraints

The two substitute parts identified—22R334MC and SDR1006-331KL—meet the primary electrical criteria and maintain compatibility within the allowable secondary parameter ranges.

Parameter Comparison

Engineering Selection Recommendations

PD104R-334K (API Delevan Inc.) remains the primary choice when the full operating temperature range of -55°C to 125°C is required and physical dimensions of 9.80mm x 8.79mm x 4.00mm are compatible with board layout.

22R334MC (Murata Power Solutions Inc.) is suitable for applications where the operating temperature range can be limited to -40°C to 85°C and where the smaller footprint of 7.80mm x 7.00mm x 7.90mm provides board space advantages. The DC resistance of 1.21Ohm is within acceptable tolerance for equivalent thermal performance.

SDR1006-331KL (Bourns Inc.) is suitable for applications requiring higher current capacity (520 mA saturation current of 850mA) while maintaining the extended upper temperature limit of 125°C. Physical dimensions of 9.80mm x 9.80mm x 5.80mm must be verified for board compatibility.

All three parts maintain ROHS3 compliance, unlimited moisture sensitivity rating, and REACH unaffected status, ensuring regulatory consistency across substitution options.

Frequently Asked Questions (FAQ)

Q: Can 22R334MC replace PD104R-334K in all applications? A: The 22R334MC is electrically equivalent for inductance and current rating but operates only to 85°C maximum. Substitution is valid only if the application does not require operation below -40°C or above 85°C.

Q: What is the impact of the higher DC resistance in 22R334MC? A: The 22R334MC has a maximum DC resistance of 1.21Ohm compared to 1.1Ohm in the PD104R-334K. This 0.11Ohm difference results in approximately 10% higher resistive losses and should be evaluated for thermal performance in the specific circuit application.

Q: Is SDR1006-331KL a direct replacement? A: SDR1006-331KL maintains the full temperature range (-40°C to 125°C) and provides higher current capacity (520 mA). The primary consideration is the larger footprint of 9.80mm x 9.80mm, which must be accommodated in the PCB layout.

Q: Are all three parts ROHS3 compliant? A: Yes, PD104R-334K, 22R334MC, and SDR1006-331KL are all ROHS3 compliant with unlimited moisture sensitivity rating and REACH unaffected status.

Q: What determines substitution eligibility? A: Substitution is based on matching the 330 µH inductance at ±10% tolerance, unshielded configuration, surface mount packaging, and current rating of 420 mA or higher. Operating temperature range and physical dimensions may vary based on application requirements.