PD54R-333K Equivalent & Substitute Parts

Part Overview

The PD54R-333K is a 33 µH unshielded drum core wirewound inductor manufactured by API Delevan Inc., rated for 900 mA continuous current with a maximum DC resistance of 280 mOhm. This surface mount component operates across the temperature range of -55°C to 125°C and is classified as Active product status with ROHS3 compliance. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this inductance value and current rating category.

Substiute Parts

PD54R-333K

API Delevan Inc.In Stock: 1194PD54R-333K Datasheet

Current PartRFQ

SDR0604-330KL

Bourns Inc.In Stock: 16847SDR0604-330KL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PD54R-333K is determined by the following criteria:

Primary Electrical Parameters:

• Inductance value: 33 µH (±10% tolerance band)
• Current rating: minimum 880 mA (≥97.8% of original 900 mA rating)
• DC resistance: maximum 280 mOhm (no increase in resistive losses)

Physical & Environmental Parameters:

• Core type: Ferrite drum core, wirewound construction
• Shielding configuration: Unshielded
• Mounting: Surface mount, nonstandard package
• Operating temperature: minimum -40°C to 125°C (covers or exceeds original range)
• Compliance: ROHS3 and REACH requirements maintained

The SDR0604-330KL from Bourns Inc. meets all substitution criteria within these parameter boundaries.

Parameter Comparison

Engineering Selection Recommendations

PD54R-333K (API Delevan Inc.) is the primary component selection when:

• Operating temperature environment extends below -40°C
• Original design specifications mandate the full -55°C to 125°C range
• Inventory availability from API Delevan is confirmed (1088 Pcs in stock)

SDR0604-330KL (Bourns Inc.) is an acceptable substitute when:

• Operating temperature remains within -40°C to 125°C
• Lower DC resistance (250 mOhm vs. 280 mOhm) provides improved efficiency
• Current rating of 880 mA satisfies circuit requirements (97.8% of original rating)
• Higher inventory availability is required (16816 Pcs in stock)
• Both components maintain ROHS3 compliance and identical moisture sensitivity classification

Both components are Active status products with equivalent mechanical compatibility in surface mount applications.

Frequently Asked Questions (FAQ)

Q: Can SDR0604-330KL replace PD54R-333K in all applications?

A: SDR0604-330KL is compatible when the operating temperature range does not require operation below -40°C. The original PD54R-333K supports -55°C minimum; SDR0604-330KL supports -40°C minimum. Verify circuit operating conditions before substitution.

Q: What is the significance of the 20 mA current rating difference?

A: The SDR0604-330KL current rating of 880 mA represents 97.8% of the PD54R-333K rating of 900 mA. This 2.2% variance is within acceptable engineering tolerance for most applications. Confirm circuit peak and continuous current requirements do not exceed 880 mA.

Q: Does the lower DC resistance of SDR0604-330KL affect circuit performance?

A: The SDR0604-330KL DC resistance of 250 mOhm is lower than the PD54R-333K maximum of 280 mOhm. Lower resistance reduces resistive losses and heat generation, which is beneficial for circuit efficiency. No negative performance impact is introduced by this substitution parameter.

Q: Are the physical dimensions compatible for PCB layout?

A: PD54R-333K dimensions are 5.70mm L × 5.11mm W × 4.50mm H. SDR0604-330KL dimensions are 5.80mm L × 5.80mm W × 4.80mm H. Both are nonstandard surface mount packages. Verify PCB footprint and clearance specifications accommodate the slightly larger SDR0604-330KL footprint before layout finalization.

Q: What compliance certifications apply to both parts?

A: Both PD54R-333K and SDR0604-330KL are ROHS3 compliant, REACH unaffected, classified as EAR99 for export control, and carry HTSUS code 8504.50.4000. Moisture sensitivity level is 1 (Unlimited) for both components.