CDR95NP-470MC Equivalent & Substitute Parts

Part Overview

The CDR95NP-470MC is a 47 µH unshielded drum core wirewound inductor manufactured by Sumida America Components Inc., rated for 1.5 A continuous current with a maximum DC resistance of 151 mOhm. This component is classified as obsolete, making identification of equivalent substitute parts essential for ongoing design support and procurement continuity. The part operates across the temperature range of -40°C to 100°C and is RoHS3 compliant with MSL 1 rating.

Key Parameters

Parameter	Value
Inductance	47 µH
Current Rating	1.5 A
DC Resistance (Max)	151 mOhm
Tolerance	±20%
Saturation Current	2 A
Core Type	Ferrite Drum Core
Shielding	Unshielded
Operating Temperature	-40°C to 100°C
Mounting Type	Surface Mount
Package Type	Nonstandard
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the CDR95NP-470MC are selected based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Electrical Compatibility:

Inductance value: 47 µH (exact match required)
Inductance tolerance: ±20% or tighter
Current rating: minimum 1.5 A continuous
DC resistance: must not exceed 151 mOhm significantly
Saturation current: minimum 1.6 A

Mechanical Compatibility:

Mounting type: Surface Mount (SMD)
Package classification: Nonstandard
Physical dimensions: comparable footprint and height
Core material: Ferrite drum core preferred for equivalent performance

Compliance Requirements:

RoHS3 compliance mandatory
MSL 1 rating required
Operating temperature range: minimum -40°C to 100°C

The three substitute parts identified meet these criteria with varying degrees of parameter alignment.

Parameter Comparison

Parameter	CDR95NP-470MC (Main)	P0751.473NLT	SDR1005-470KL	SDE1006A-470K
Manufacturer	Sumida America Components Inc.	Pulse Electronics	Bourns Inc.	Bourns Inc.
Inductance	47 µH	47 µH	47 µH	47 µH
Tolerance	±20%	±20%	±10%	±10%
Current Rating (Amps)	1.5 A	1.6 A	1.4 A	1.8 A
Saturation Current (Isat)	2.0 A	1.6 A	1.6 A	1.95 A
DC Resistance (Max)	151 mOhm	168 mOhm	190 mOhm	170 mOhm
Core Type	Ferrite Drum Core	Wirewound	Ferrite Drum Core	Ferrite Drum Core
Shielding	Unshielded	Unshielded	Unshielded	Unshielded
Operating Temperature	-40°C to 100°C	-40°C to 130°C	-40°C to 125°C	-40°C to 125°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Packaging	Nonstandard	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)

Engineering Selection Recommendations

P0751.473NLT (Pulse Electronics)

This substitute provides the closest current rating match at 1.6 A, exceeding the 1.5 A requirement of the main part. DC resistance of 168 mOhm is within acceptable tolerance of the original 151 mOhm specification. The part is active in production with extended operating temperature range to 130°C. Inductance tolerance of ±20% matches the original specification. RoHS3 compliance and MSL 1 rating are confirmed. This part is suitable for direct substitution in applications where the slightly higher DC resistance is acceptable.

SDR1005-470KL (Bourns Inc.)

This substitute offers tighter inductance tolerance at ±10% compared to the original ±20%, providing improved consistency. Current rating of 1.4 A is marginally below the 1.5 A requirement but saturation current of 1.6 A provides operational margin. DC resistance of 190 mOhm exceeds the original specification and represents the highest resistance among substitutes. Operating temperature range extends to 125°C. The part is active in production with RoHS3 compliance and MSL 1 rating. Selection of this part requires verification that the higher DC resistance does not impact circuit performance.

SDE1006A-470K (Bourns Inc.)

This substitute provides the highest current rating at 1.8 A, offering the greatest margin above the 1.5 A requirement. DC resistance of 170 mOhm is moderate among the substitutes. Inductance tolerance of ±10% provides improved specification consistency. The part carries AEC-Q200 automotive qualification, indicating enhanced reliability screening. Operating temperature range extends to 125°C. RoHS3 compliance and MSL 1 rating are confirmed. This part is suitable for applications requiring higher current capacity or automotive-grade reliability.

Frequently Asked Questions (FAQ)

Q: Can the P0751.473NLT substitute for the CDR95NP-470MC in all applications?

A: The P0751.473NLT meets the primary electrical requirements with matching 47 µH inductance and ±20% tolerance. Current rating of 1.6 A exceeds the 1.5 A requirement. DC resistance of 168 mOhm is 17 mOhm higher than the original specification. Substitution is valid where this resistance increase does not degrade circuit performance. Physical dimensions differ slightly (12.95mm x 9.40mm vs. 12.90mm x 9.40mm), requiring PCB layout verification.

Q: Why does the SDR1005-470KL have higher DC resistance than the original part?

A: DC resistance in wirewound inductors is determined by wire gauge, winding configuration, and core material. The SDR1005-470KL achieves the same 47 µH inductance with a different winding design, resulting in 190 mOhm maximum resistance. This represents a design trade-off between inductance value, current rating, and physical size. Applications sensitive to resistive losses should evaluate this parameter against circuit requirements.

Q: What is the significance of the ±10% tolerance in the Bourns substitutes compared to the ±20% original specification?

A: Tighter tolerance indicates more consistent inductance values across production batches. The SDR1005-470KL and SDE1006A-470K both specify ±10% tolerance, compared to ±20% for the CDR95NP-470MC. This provides improved circuit performance predictability and reduced design margin requirements in applications where inductance variation affects circuit function.

Q: Are all substitute parts available in the same packaging format?

A: The CDR95NP-470MC packaging is listed as nonstandard. The three substitute parts are supplied in Tape & Reel (TR) format, which is standard for surface mount component distribution. This packaging difference does not affect electrical performance but may require adjustment to procurement and assembly processes.

Q: Which substitute part is recommended for automotive applications?

A: The SDE1006A-470K carries AEC-Q200 automotive qualification, indicating compliance with automotive reliability and environmental testing standards. This part is the appropriate selection for automotive circuit applications requiring qualified component documentation.

Q: How do the operating temperature ranges compare?

A: The original CDR95NP-470MC operates from -40°C to 100°C. The P0751.473NLT extends to 130°C, while both Bourns parts (SDR1005-470KL and SDE1006A-470K) operate to 125°C. All substitutes maintain the -40°C lower limit. Selection depends on application thermal requirements; extended upper temperature range provides additional design margin for high-temperature environments.

Q: Are all parts RoHS3 compliant?

A: All four parts, including the original CDR95NP-470MC and the three substitutes, are confirmed RoHS3 compliant with MSL 1 (unlimited moisture sensitivity level) rating. This ensures compatibility with modern manufacturing processes and environmental regulations.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message