ISC1210ER150K Equivalent & Substitute Parts

Part Overview

The ISC1210ER150K is a 15 µH shielded drum core wirewound inductor manufactured by Vishay Dale, designed for surface mount applications in the 1210 (3225 Metric) package. This component operates across a temperature range of -55°C to 125°C with a maximum DC resistance of 2.5Ohm and supports a current rating of 165 mA. The part is actively produced and ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this inductance value and package class.

Key Parameters

Parameter	Value	Unit
Inductance	15	µH
Inductance Tolerance	±10	%
Current Rating	165	mA
DC Resistance (Max)	2.5	Ohm
Package / Case	1210 (3225 Metric)	—
Mounting Type	Surface Mount	—
Operating Temperature Range	-55 to 125	°C
Shielding	Shielded	—
Q @ Frequency	30 @ 2.52 MHz	—
Self Resonant Frequency	20	MHz

Substitute Part Grouping Explanation

Substitution eligibility for the ISC1210ER150K is determined by the following critical parameters:

Inductance value must be 15 µH with ±10% tolerance
Package must be 1210 (3225 Metric) for mechanical and electrical compatibility
Mounting type must be Surface Mount
Operating temperature range must encompass -55°C to 125°C
Shielding configuration must be Shielded
Current rating must meet or exceed the application requirement
DC resistance must remain within acceptable limits for the circuit design
Q factor and self-resonant frequency must support the intended frequency of operation

The CMH322522-150KL from Bourns Inc. meets these substitution criteria with equivalent inductance, package dimensions, temperature range, and shielding characteristics.

Parameter Comparison

Parameter	ISC1210ER150K (Vishay Dale)	CMH322522-150KL (Bourns Inc.)	Compatibility
Inductance	15 µH	15 µH	Equivalent
Inductance Tolerance	±10%	±10%	Equivalent
Current Rating	165 mA	130 mA	Substitute has lower rating
DC Resistance (Max)	2.5 Ohm	2.8 Ohm	Substitute has higher resistance
Package / Case	1210 (3225 Metric)	1210 (3225 Metric)	Equivalent
Size / Dimension	0.126" L x 0.098" W (3.20mm x 2.49mm)	0.126" L x 0.098" W (3.20mm x 2.50mm)	Equivalent
Height - Seated (Max)	0.095" (2.41mm)	0.094" (2.40mm)	Equivalent
Operating Temperature Range	-55°C to 125°C	-55°C to 125°C	Equivalent
Shielding	Shielded	Shielded	Equivalent
Q @ Frequency	30 @ 2.52 MHz	30 @ 2.52 MHz	Equivalent
Self Resonant Frequency	20 MHz	20 MHz	Equivalent
Mounting Type	Surface Mount	Surface Mount	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Equivalent
REACH Status	REACH Unaffected	REACH Unaffected	Equivalent

Engineering Selection Recommendations

Both the ISC1210ER150K and CMH322522-150KL are active production components with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and use.

The primary distinction between these parts lies in current rating and DC resistance. The ISC1210ER150K supports 165 mA with 2.5Ohm maximum DC resistance, while the CMH322522-150KL is rated for 130 mA with 2.8Ohm maximum DC resistance. Selection between these parts depends on circuit current requirements and acceptable power dissipation limits. Applications requiring the full 165 mA rating or lower DC resistance losses must use the ISC1210ER150K. Applications with current demands at or below 130 mA and acceptable DC resistance characteristics may use the CMH322522-150KL.

Both components share identical inductance values, package dimensions, temperature operating range, shielding configuration, and frequency characteristics, ensuring mechanical and electrical interchangeability within the specified parameter constraints.

Frequently Asked Questions (FAQ)

Q: Can the CMH322522-150KL replace the ISC1210ER150K in all applications?

A: Substitution is valid only when circuit current requirements do not exceed 130 mA and the additional 0.3Ohm DC resistance does not create unacceptable power dissipation. Both parts maintain identical inductance, package form factor, and operating temperature range.

Q: What is the impact of the 0.3Ohm difference in DC resistance?

A: DC resistance affects power dissipation according to P = I²R. At 130 mA, the ISC1210ER150K dissipates 42.25 mW while the CMH322522-150KL dissipates 47.32 mW. Circuit thermal design must accommodate this difference.

Q: Are the package dimensions truly identical?

A: Both parts use the 1210 (3225 Metric) package with equivalent length and width. Height measurements differ by 0.01mm (0.095" versus 0.094"), which is negligible for PCB assembly and clearance considerations.

Q: Do core material differences affect substitution?

A: The ISC1210ER150K uses iron powder core material while the CMH322522-150KL uses ferrite core material. Both achieve the specified 15 µH inductance, 30 Q factor at 2.52 MHz, and 20 MHz self-resonant frequency within the provided parameters.

Q: What compliance certifications apply to both parts?

A: Both components are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic component use in regulated markets.

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