CDR156NP-100LC Equivalent & Substitute Parts

Part Overview

The CDR156NP-100LC is a 10 µH unshielded drum core wirewound inductor manufactured by Sumida America Components Inc., rated for 5.5 A continuous current with a maximum DC resistance of 25 mOhm. This surface mount component operates across the temperature range of -40°C to 100°C and is classified as obsolete product status.

Due to the obsolete status of the CDR156NP-100LC, identifying equivalent and substitute parts is essential for ongoing production support, design revisions, and inventory management. Substitute components must maintain electrical compatibility while meeting the same functional requirements within acceptable parameter tolerances.

Substiute Parts

CDR156NP-100LC

Sumida America Components Inc.In Stock: 1205CDR156NP-100LC Datasheet

Current PartRFQ

P0250.103NLT

Pulse ElectronicsIn Stock: 872P0250.103NLT Datasheet

DirectRFQ

HC1-100-R

Eaton - Electronics DivisionIn Stock: 6088HC1-100-R Datasheet

SimilarRFQ

SDR1806-100ML

Bourns Inc.In Stock: 1405SDR1806-100ML Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CDR156NP-100LC are classified based on strict electrical parameter alignment. The primary substitution criteria are:

Critical Parameters for Substitution:

• Inductance value: 10 µH (fixed requirement)
• Inductance tolerance: ±15% or tighter
• Current rating: minimum 5.5 A continuous
• DC resistance: maximum 25 mOhm
• Saturation current: minimum 9.6 A
• Operating temperature: minimum -40°C to 100°C coverage
• Shielding configuration: Unshielded
• Mounting type: Surface Mount

Direct Substitutes meet all critical electrical parameters within specified tolerances and maintain mechanical compatibility.

Similar Substitutes meet the core inductance and current requirements but may have variations in secondary parameters such as saturation current, DC resistance, or operating temperature range that require application-level verification.

Parameter Comparison

Engineering Selection Recommendations

P0250.103NLT (Pulse Electronics) is classified as a direct substitute based on matching inductance value, tolerance, and DC resistance specifications. However, the current rating of 4.3 A is below the main part specification of 5.5 A. This part is suitable only for applications where the actual operating current does not exceed 4.3 A. The extended operating temperature range (-40°C to 130°C) provides additional thermal margin. Product status is active with established supply chain availability.

HC1-100-R (Eaton - Electronics Division) is classified as a similar substitute with significant performance advantages in current handling (12.79 A rating) and DC resistance (5.7 mOhm). The saturation current of 5.3 A is lower than the main part, which may limit performance in high-current transient conditions. The smaller physical footprint (13.00mm x 13.00mm vs. 18.50mm x 15.00mm) may require PCB layout modifications. Product status is active with high inventory availability (6045 pcs).

SDR1806-100ML (Bourns Inc.) is classified as a similar substitute with electrical parameters closely aligned to the main part. Current rating (5.3 A) and DC resistance (25 mOhm) are nearly equivalent. Inductance tolerance is ±20%, which is wider than the main part specification. Physical dimensions are comparable to the main part. Product status is active with established supply availability (1351 pcs).

All substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing processes and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can P0250.103NLT replace CDR156NP-100LC in all applications?

A: P0250.103NLT is electrically compatible for inductance and DC resistance specifications. However, the current rating of 4.3 A is lower than the main part's 5.5 A rating. Substitution is valid only when the actual operating current remains below 4.3 A. Applications requiring the full 5.5 A rating must use HC1-100-R or SDR1806-100ML.

Q: What are the physical compatibility considerations?

A: All substitute parts are surface mount components with nonstandard package dimensions. HC1-100-R has a significantly smaller footprint (13.00mm x 13.00mm) compared to the main part (18.50mm x 15.00mm), requiring PCB layout verification. P0250.103NLT and SDR1806-100ML have comparable dimensions to the main part with minor variations in height.

Q: How does saturation current affect substitution decisions?

A: Saturation current defines the threshold at which inductance begins to degrade under high current conditions. HC1-100-R has a saturation current of 5.3 A, which is lower than the main part's 9.6 A. In applications with current transients or peaks approaching saturation, HC1-100-R may exhibit reduced inductance. P0250.103NLT and SDR1806-100ML both have saturation currents of 10 A, providing margin above the main part specification.

Q: Are all substitutes RoHS compliant?

A: Yes. All substitute parts (P0250.103NLT, HC1-100-R, and SDR1806-100ML) are ROHS3 compliant with MSL 1 rating, matching the main part's environmental and regulatory status.

Q: What is the impact of inductance tolerance differences?

A: The main part specifies ±15% tolerance. SDR1806-100ML has ±20% tolerance, which is wider. In precision applications where inductance tolerance is critical, SDR1806-100ML may require additional circuit compensation or selection screening. P0250.103NLT and HC1-100-R maintain ±15% tolerance alignment.

Q: Which substitute offers the best overall compatibility?

A: SDR1806-100ML provides the closest electrical and mechanical match to CDR156NP-100LC, with equivalent current rating (5.3 A vs. 5.5 A), matching DC resistance (25 mOhm), comparable physical dimensions, and active product status with established supply availability.