CF453215-100K Equivalent & Substitute Parts

Part Overview

The CF453215-100K is a 10 µH shielded multilayer inductor manufactured by Bourns Inc., rated for 250 mA with a maximum DC resistance of 1.6Ohm in a 1812 (4532 Metric) surface mount package. This part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements. Substitute parts must maintain electrical equivalence across inductance, current rating, DC resistance, and frequency characteristics while accommodating packaging and shielding variations.

Key Parameters

Parameter	CF453215-100K
Inductance	10 µH
Tolerance	±10%
Current Rating	250 mA
DC Resistance (Max)	1.6Ohm
Q @ Frequency	50 @ 2.52MHz
Self Resonant Frequency	20MHz
Package / Case	1812 (4532 Metric)
Shielding	Shielded
Core Material	Ferrite
Operating Temperature	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following critical parameters:

Inductance Value: 10 µH (±10% tolerance)
Current Rating: 250 mA minimum
DC Resistance: 1.6Ohm maximum
Package: 1812 (4532 Metric) surface mount
Frequency Characteristics: Q @ 2.52MHz and self-resonant frequency within acceptable range
Compliance: RoHS3 compliance required for new designs

Substitute parts are grouped into two categories based on shielding configuration:

Category A - Unshielded Alternatives: Parts with unshielded drum core or wirewound construction. These provide electrical equivalence but differ in electromagnetic field containment. Suitable for applications where EMI shielding is not a design requirement.

Category B - Shielded Alternatives: Parts maintaining shielded construction equivalent to the original CF453215-100K. Limited availability in this category.

Parameter Comparison

Part Number	Manufacturer	Inductance	Current Rating	DCR (Max)	Shielding	Core Type	Operating Temp	Product Status	RoHS Status
CF453215-100K	Bourns Inc.	10 µH	250 mA	1.6Ohm	Shielded	Ferrite	-55°C ~ 125°C	Obsolete	ROHS3 Compliant
CM453232-100KL	Bourns Inc.	10 µH	250 mA	1.6Ohm	Unshielded	Ferrite	-40°C ~ 125°C	Active	ROHS3 Compliant
3613C100KV	TE Connectivity	10 µH	250 mA	1.6Ohm	Unshielded	Ferrite	Not specified	Active	ROHS3 Compliant
74476610	Würth Elektronik	10 µH	250 mA	1.6Ohm	Unshielded	Ferrite	-40°C ~ 105°C	Active	ROHS3 Compliant
IMC1812BN100K	Vishay Dale	10 µH	250 mA	1.6Ohm	Unshielded	Iron Powder	-55°C ~ 125°C	Active	ROHS3 Compliant
IMC1812ET100K	Vishay Dale	10 µH	250 mA	1.6Ohm	Unshielded	Iron Powder	-55°C ~ 125°C	Active	ROHS3 Compliant
IMC1812RQ100K	Vishay Dale	10 µH	250 mA	1.6Ohm	Unshielded	Iron Powder	-55°C ~ 125°C	Active	RoHS non-compliant
IMC1812RV100K	Vishay Dale	10 µH	250 mA	1.6Ohm	Unshielded	Iron Powder	-55°C ~ 125°C	Active	RoHS non-compliant

Engineering Selection Recommendations

Primary Recommendation - Active, RoHS3 Compliant Unshielded Options:

CM453232-100KL (Bourns Inc.) and 74476610 (Würth Elektronik) are the preferred substitutes. Both maintain full electrical equivalence, are actively manufactured, and carry ROHS3 compliance. CM453232-100KL operates across -40°C ~ 125°C, while 74476610 operates -40°C ~ 105°C. Selection depends on application temperature requirements.

Secondary Recommendation - Iron Powder Core Options:

IMC1812ET100K and IMC1812BN100K (Vishay Dale) provide active alternatives with extended temperature range (-55°C ~ 125°C) matching the original part. Iron powder core construction differs from ferrite but maintains electrical specifications. Both are ROHS3 compliant.

Not Recommended for New Designs:

IMC1812RQ100K and IMC1812RV100K are RoHS non-compliant and should not be selected for applications requiring regulatory compliance.

Shielding Consideration:

The original CF453215-100K features shielded construction. All listed substitutes except the original are unshielded. If EMI shielding is a circuit requirement, application-level shielding or alternative shielded inductors must be evaluated separately.

Frequently Asked Questions (FAQ)

Q: Can unshielded inductors replace the shielded CF453215-100K?

A: Electrically, yes. All substitute parts maintain the 10 µH inductance, 250 mA current rating, and 1.6Ohm maximum DC resistance. However, unshielded construction does not contain electromagnetic fields. If the original design relied on shielding for EMI control, circuit-level analysis is required to determine if unshielded operation is acceptable.

Q: What is the difference between ferrite and iron powder core materials?

A: Both materials are provided in the substitute list. Ferrite cores (CM453232-100KL, 3613C100KV, 74476610) and iron powder cores (IMC1812 series) achieve the same inductance and current ratings specified. Core material selection affects frequency response characteristics and temperature stability but does not change the primary electrical parameters listed.

Q: Are all substitutes RoHS3 compliant?

A: No. IMC1812RQ100K and IMC1812RV100K are RoHS non-compliant. For applications requiring regulatory compliance, select from CM453232-100KL, 3613C100KV, 74476610, IMC1812BN100K, or IMC1812ET100K.

Q: What packaging options are available?

A: All substitutes are supplied in 1812 (4532 Metric) surface mount packages. Packaging formats vary: CM453232-100KL is available in Cut Tape and Digi-Reel; 74476610 in Tape & Reel; IMC1812ET100K and IMC1812RV100K in Tape & Reel; IMC1812BN100K in Bulk; 3613C100KV in standard packaging.

Q: Does operating temperature range affect substitution?

A: The original CF453215-100K operates -55°C ~ 125°C. CM453232-100KL and 74476610 operate -40°C ~ 125°C and -40°C ~ 105°C respectively. Vishay Dale IMC1812 series matches the full -55°C ~ 125°C range. Select based on application temperature requirements.

Q: What is the inventory status of these parts?

A: CF453215-100K (obsolete) has 1038 pcs in stock. Active alternatives include CM453232-100KL (45,100 pcs), 74476610 (6,175 pcs), IMC1812ET100K (1,143 pcs), IMC1812RV100K (747 pcs), IMC1812BN100K (726 pcs), IMC1812RQ100K (638 pcs), and 3613C100KV (1,089 pcs).

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message