FP1007R2-R12-R Equivalent & Substitute Parts

Part Overview

The FP1007R2-R12-R is a 120 nH unshielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This surface mount component is rated for 51 A continuous current with a saturation current of 81 A and features a DC resistance of 0.48 mOhm. The part is classified as Active product status and is RoHS Compliant with MSL 1 (Unlimited moisture sensitivity level).

Substitute parts are identified when equivalent electrical performance can be maintained within the allowed parameter tolerances for the application, particularly when the main part experiences supply constraints or when alternative sourcing is required for cost or logistics optimization.

Substiute Parts

FP1007R2-R12-R

Eaton - Electronics DivisionIn Stock: 2244FP1007R2-R12-R Datasheet

Current PartRFQ

PA1320.121NLT

Pulse ElectronicsIn Stock: 2786PA1320.121NLT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FP1007R2-R12-R is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Inductance value: 120 nH (exact match required)
• DC Resistance: 0.48 mOhm (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Current Rating: Must be equal to or greater than 51 A continuous
• Saturation Current (Isat): Must be equal to or greater than 81 A

Acceptable Variation Parameters:

• Inductance Tolerance: Substitute tolerance may differ from ±10% if the substitute maintains the nominal 120 nH value within the application's circuit requirements
• Operating Temperature Range: Substitute range must encompass or exceed -40°C to 125°C
• Shielding: Substitutes may differ in shielding characteristics if the application circuit design permits
• Package dimensions: Minor variations acceptable if footprint compatibility is maintained within PCB design constraints

The PA1320.121NLT from Pulse Electronics meets the critical electrical parameters (120 nH inductance, 0.48 mOhm DCR, surface mount) and current requirements (40 A continuous, 74 A saturation). Differences in shielding (shielded vs. unshielded) and tolerance (±20% vs. ±10%) represent design trade-offs that must be evaluated within specific application context.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (FP1007R2-R12-R): The FP1007R2-R12-R remains the preferred selection when application requirements demand the full 51 A continuous current rating and 81 A saturation current specification. The unshielded drum core design and ±10% inductance tolerance provide the specified performance envelope. Active product status and RoHS Compliance confirm ongoing manufacturer support and regulatory alignment.

Substitute Part Selection (PA1320.121NLT): The PA1320.121NLT is suitable for applications where continuous current requirements do not exceed 40 A and saturation current does not exceed 74 A. The shielded design may provide EMI performance benefits in noise-sensitive circuits, though this represents a design change from the unshielded primary part. The ±20% inductance tolerance is wider than the primary part and must be verified against circuit design margins. ROHS3 Compliance and extended temperature range (-40°C to 130°C) provide regulatory and thermal advantages. Dimensionally similar package footprint (10.41 x 8.00 x 6.50 mm vs. 10.20 x 7.80 x 6.50 mm) permits PCB layout compatibility with minor adjustments.

Substitution Constraints:

• Do not substitute if application requires continuous current above 40 A
• Do not substitute if application requires saturation current above 74 A
• Verify circuit tolerance to ±20% inductance variation before substitution
• Evaluate shielding impact on EMI performance and board layout

Frequently Asked Questions (FAQ)

Q: Can PA1320.121NLT replace FP1007R2-R12-R in all applications?

A: No. The PA1320.121NLT has lower current ratings (40 A continuous vs. 51 A, and 74 A saturation vs. 81 A). Substitution is valid only when application current requirements remain below 40 A continuous operation.

Q: What is the impact of the shielding difference?

A: The FP1007R2-R12-R is unshielded; the PA1320.121NLT is shielded. Shielding reduces radiated EMI but may increase package size and cost. Circuit design must accommodate this change, particularly in high-frequency or noise-sensitive applications.

Q: Are the inductance tolerances compatible?

A: The FP1007R2-R12-R specifies ±10% tolerance; the PA1320.121NLT specifies ±20%. Both parts maintain the nominal 120 nH value. Applications with tight inductance tolerance requirements (within ±10%) should use the primary part. Applications tolerant of ±20% variation may use the substitute.

Q: Do the package dimensions differ significantly?

A: Dimensions are similar but not identical. FP1007R2-R12-R: 10.20 x 7.80 x 6.50 mm; PA1320.121NLT: 10.41 x 8.00 x 6.50 mm. Both use surface mount packaging with identical height. PCB footprint compatibility must be verified for the specific board design.

Q: Are both parts RoHS compliant?

A: Yes. FP1007R2-R12-R is RoHS Compliant; PA1320.121NLT is ROHS3 Compliant. Both meet current regulatory requirements for lead-free and restricted substance compliance.

Q: What is the DC resistance relationship?

A: Both parts specify 0.48 mOhm DC resistance. This parameter is identical and ensures equivalent power dissipation characteristics at rated current levels.

Q: Can I use PA1320.121NLT if my circuit operates at 45 A?

A: No. The PA1320.121NLT is rated for 40 A continuous current. Operating at 45 A exceeds the part's continuous current specification and risks thermal failure and inductance degradation.

Q: What is the operating temperature difference?

A: FP1007R2-R12-R operates -40°C to 125°C; PA1320.121NLT operates -40°C to 130°C. The substitute provides 5°C additional high-temperature margin. Both cover standard industrial temperature ranges.