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CR54NP-151KC Equivalent & Substitute Parts
Part Overview
The CR54NP-151KC is a 150 µH unshielded drum core wirewound inductor manufactured by Sumida America Components Inc. This surface mount component is rated for 400 mA continuous current with a maximum DC resistance of 1.1 Ohm and operates across the temperature range of -40°C to 100°C. The part is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to inventory constraints, supply chain considerations, or design flexibility needs while maintaining functional compatibility.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Inductance | 150 | µH |
| Inductance Tolerance | ±10 | % |
| Current Rating | 400 | mA |
| DC Resistance (Max) | 1.1 | Ohm |
| Core Material | Ferrite | — |
| Shielding | Unshielded | — |
| Mounting Type | Surface Mount | — |
| Operating Temperature Range | -40 to 100 | °C |
| Package Type | Nonstandard | — |
| RoHS Status | ROHS3 Compliant | — |
Substitute Part Grouping Explanation
Substitute parts for the CR54NP-151KC are qualified based on strict equivalence of the following critical parameters:
Electrical Equivalence Criteria:
- Inductance value: 150 µH
- Inductance tolerance: ±10%
- Current rating: 400 mA minimum
- DC resistance: 1.1 Ohm maximum
- Core material: Ferrite
- Shielding configuration: Unshielded
Mechanical Equivalence Criteria:
- Mounting type: Surface Mount
- Package classification: Nonstandard
- Inductance test frequency: 1 kHz
Compliance Criteria:
- RoHS3 compliance required
- Moisture Sensitivity Level: 1 (Unlimited)
The SDR0604-151KL from Bourns Inc. meets all mandatory electrical and mechanical parameters for direct substitution with the CR54NP-151KC.
Parameter Comparison
| Parameter | CR54NP-151KC (Sumida) | SDR0604-151KL (Bourns) | Compatibility |
|---|---|---|---|
| Inductance | 150 µH | 150 µH | Equivalent |
| Inductance Tolerance | ±10% | ±10% | Equivalent |
| Current Rating | 400 mA | 400 mA | Equivalent |
| DC Resistance (Max) | 1.1 Ohm | 1.1 Ohm | Equivalent |
| Core Material | Ferrite | Ferrite | Equivalent |
| Shielding | Unshielded | Unshielded | Equivalent |
| Mounting Type | Surface Mount | Surface Mount | Equivalent |
| Operating Temperature Range | -40°C to 100°C | -40°C to 125°C | Compatible (Substitute rated higher) |
| Inductance Test Frequency | 1 kHz | 1 kHz | Equivalent |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Equivalent |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | Equivalent |
| Physical Dimensions (L x W) | 5.80mm x 5.30mm | 5.80mm x 5.80mm | Compatible (Width difference noted) |
| Height (Max) | 4.85mm | 4.80mm | Compatible |
Engineering Selection Recommendations
The SDR0604-151KL qualifies as a direct electrical and functional substitute for the CR54NP-151KC based on matched inductance, current rating, DC resistance, core material, and shielding specifications. Both components are Active product status and RoHS3 compliant, meeting current regulatory requirements.
The SDR0604-151KL provides an extended operating temperature range (-40°C to 125°C versus -40°C to 100°C), which offers additional thermal margin in applications operating near the upper temperature limit. Physical dimensions are compatible with minor width variation (5.80mm x 5.80mm versus 5.80mm x 5.30mm), and height specifications are equivalent within manufacturing tolerance.
Selection between CR54NP-151KC and SDR0604-151KL should be based on availability, lead time, cost considerations, and specific PCB layout constraints related to the width dimension difference.
Frequently Asked Questions (FAQ)
Q: Can SDR0604-151KL replace CR54NP-151KC in existing designs?
A: Yes. The SDR0604-151KL meets all critical electrical parameters: 150 µH inductance at ±10% tolerance, 400 mA current rating, and 1.1 Ohm maximum DC resistance. Both components use ferrite cores, are unshielded, and operate as surface mount inductors. Physical dimensions are compatible with PCB layout considerations for the width difference.
Q: What is the significance of the width dimension difference?
A: The CR54NP-151KC measures 5.80mm x 5.30mm while the SDR0604-151KL measures 5.80mm x 5.80mm. The 0.50mm width increase must be verified against PCB layout constraints and component spacing requirements. Height specifications are equivalent at approximately 4.8mm.
Q: Are both parts RoHS3 compliant?
A: Yes. Both CR54NP-151KC and SDR0604-151KL are RoHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), meeting current environmental and regulatory requirements.
Q: What is the difference in operating temperature range?
A: The CR54NP-151KC operates from -40°C to 100°C, while the SDR0604-151KL operates from -40°C to 125°C. The SDR0604-151KL provides 25°C additional upper temperature margin. For applications operating below 100°C, both parts are functionally equivalent.
Q: Are the inductance test conditions identical?
A: Yes. Both components specify inductance measurement at 1 kHz, ensuring consistent inductance values across equivalent designs.
Q: What packaging format is used for both parts?
A: Both CR54NP-151KC and SDR0604-151KL are supplied in Tape & Reel (TR) packaging for automated assembly processes.
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