S0603-56NJ3S Equivalent and Substitute Parts

Part Overview

The S0603-56NJ3S is a 56 nH unshielded drum core wirewound inductor manufactured by API Delevan Inc., rated for 600 mA with a maximum DC resistance of 340mOhm in a 0603 (1608 Metric) surface mount package. This component is actively produced and widely used in high-frequency circuit applications. Finding alternative models becomes necessary when supply constraints occur, specific compliance requirements need to be met, or performance optimizations within acceptable parameter ranges are desired.

Substiute Parts

S0603-56NJ3S
API Delevan Inc.In Stock: 1038S0603-56NJ3S Datasheet
S0603-56NJ3S
Current Part
PM0603-56NJ-RC
Bourns Inc.In Stock: 6876PM0603-56NJ-RC Datasheet
PM0603-56NJ-RC
Similar

Key Parameters

Parameter Specification
Inductance 56 nH
Tolerance ±5%
Current Rating 600 mA
DC Resistance (Max) 340mOhm
Core Material Alumina
Shielding Unshielded
Mounting Type Surface Mount
Package 0603 (1608 Metric)
Operating Temperature -55°C ~ 125°C
Frequency - Self Resonant 1.9 GHz

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict compliance with the following parameters:

  • Inductance Value: 56 nH with ±5% tolerance (allowable range: 53.2 nH to 58.8 nH)
  • Current Rating: 600 mA minimum
  • DC Resistance: Must not exceed 340mOhm maximum
  • Core Material: Alumina drum core
  • Shielding Configuration: Unshielded
  • Mounting Type: Surface mount
  • Package Form Factor: 0603 (1608 Metric)
  • Product Type: Drum core, wirewound inductor

The substitute part PM0603-56NJ-RC meets all critical electrical and mechanical parameters required for direct replacement in this application category.

Parameter Comparison

Parameter S0603-56NJ3S (API Delevan) PM0603-56NJ-RC (Bourns)
Manufacturer API Delevan Inc. Bourns Inc.
Inductance 56 nH 56 nH
Tolerance ±5% ±5%
Current Rating (Amps) 600 mA 600 mA
DC Resistance (Max) 340mOhm 310mOhm
Core Material Alumina Alumina
Shielding Unshielded Unshielded
Mounting Type Surface Mount Surface Mount
Package / Case 0603 (1608 Metric) 0603 (1608 Metric)
Operating Temperature Range -55°C ~ 125°C -40°C ~ 125°C
Frequency - Self Resonant 1.9 GHz 1.9 GHz
Product Status Active Active
RoHS Compliance RoHS non-compliant ROHS3 Compliant
Moisture Sensitivity Level 1 (Unlimited) 1 (Unlimited)

Engineering Selection Recommendations

Both the S0603-56NJ3S and PM0603-56NJ-RC are active products suitable for selection. The PM0603-56NJ-RC offers advantages in DC resistance performance (310mOhm vs. 340mOhm maximum) and RoHS3 compliance status for applications requiring environmental compliance certification. The S0603-56NJ3S provides extended low-temperature operability down to -55°C compared to -40°C for the Bourns equivalent. Selection should be based on specific compliance requirements and operating temperature constraints of the target application.

Frequently Asked Questions (FAQ)

Q: Can PM0603-56NJ-RC directly replace S0603-56NJ3S in existing designs? A: Yes. Both inductors share identical inductance values (56 nH), tolerance specifications (±5%), current ratings (600 mA), core material (Alumina), shielding configuration (Unshielded), and package form factor (0603). The PM0603-56NJ-RC has lower DC resistance, which provides improved performance characteristics.

Q: What are the physical dimension differences between these parts? A: The S0603-56NJ3S measures 0.062" L x 0.035" W with a maximum seated height of 0.040". The PM0603-56NJ-RC measures 0.065" L x 0.041" W with a maximum seated height of 0.047". Verify PCB layout clearances before substitution in space-constrained designs.

Q: Which part should be selected for low-temperature applications? A: The S0603-56NJ3S supports operating temperatures from -55°C to 125°C, while the PM0603-56NJ-RC operates from -40°C to 125°C. Select the S0603-56NJ3S for applications requiring operation below -40°C.

Q: Are there RoHS compliance differences between these inductors? A: Yes. The S0603-56NJ3S is RoHS non-compliant, while the PM0603-56NJ-RC is ROHS3 Compliant. For designs requiring RoHS certification, specify the PM0603-56NJ-RC.

Q: Do packaging formats differ between these parts? A: The S0603-56NJ3S is supplied in standard packaging, while the PM0603-56NJ-RC is available in Tape & Reel (TR) format. Confirm packaging requirements with your procurement specifications.

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