ISC1210ER1R8K Equivalent & Substitute Parts

Part Overview

The ISC1210ER1R8K is a 1.8 µH shielded drum core wirewound inductor manufactured by Vishay Dale, designed for surface mount applications in the 1210 (3225 Metric) package. This component operates at 350 mA current rating with a maximum DC resistance of 850mOhm and is rated for operating temperatures from -55°C to 125°C. The part is currently active in production and ROHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical specifications can be maintained within the allowed parameter tolerances for this inductor category.

Substiute Parts

ISC1210ER1R8K

Vishay DaleIn Stock: 701ISC1210ER1R8K Datasheet

Current PartRFQ

CMH322522-1R8KL

Bourns Inc.In Stock: 2962CMH322522-1R8KL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ISC1210ER1R8K is determined by the following critical parameters:

Inductance value must match at 1.8 µH within the specified ±10% tolerance band. Current rating must be equal to or greater than 350 mA to ensure safe operation under rated load conditions. The package and case designation must be 1210 (3225 Metric) to guarantee mechanical and electrical compatibility with existing PCB layouts and assembly processes. Shielding type must remain shielded to maintain electromagnetic isolation properties. Operating temperature range must encompass the full -55°C to 125°C specification. DC resistance must not exceed the maximum allowable value to prevent excessive power dissipation and thermal effects in the circuit.

The substitute part CMH322522-1R8KL from Bourns Inc. meets all these critical parameters and qualifies as a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the ISC1210ER1R8K and CMH322522-1R8KL are active production components with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and use. The CMH322522-1R8KL substitute maintains all critical electrical parameters including inductance, current rating, and operating temperature range. The DC resistance of the substitute is 900mOhm maximum compared to 850mOhm maximum for the original part, representing a 50mOhm increase within acceptable design margins for this inductor category. Physical dimensions are equivalent within manufacturing tolerances, with height differences of 0.01mm (0.001") that do not impact PCB assembly or clearance requirements. Selection between these parts should be based on availability, lead time, and supply chain considerations, as both components are functionally equivalent for the specified application.

Frequently Asked Questions (FAQ)

Q: Can the CMH322522-1R8KL be used as a direct replacement for the ISC1210ER1R8K?

A: Yes. Both components share identical inductance values of 1.8 µH, matching tolerance of ±10%, equal current rating of 350 mA, identical package designation of 1210 (3225 Metric), and equivalent operating temperature range of -55°C to 125°C. The DC resistance difference of 50mOhm is within acceptable substitution parameters for this inductor class.

Q: What is the difference in core material between these two parts?

A: The ISC1210ER1R8K uses an iron powder core, while the CMH322522-1R8KL uses a ferrite core. Both configurations achieve the specified electrical performance and are suitable for the stated application parameters.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity level (MSL) ratings of 1 (Unlimited). Both are rated for the same operating temperature range and meet current regulatory standards.

Q: Does the 5 MHz difference in self-resonant frequency affect substitution suitability?

A: The self-resonant frequency difference (85MHz versus 80MHz) is within normal manufacturing variation for this inductor category and does not impact substitution eligibility when all other critical parameters are met.

Q: Are the physical dimensions compatible with existing PCB layouts?

A: Yes. Both parts use the 1210 (3225 Metric) package with equivalent length and width dimensions. Height differences are 0.01mm (0.001"), which is within standard PCB assembly tolerances and does not require layout modifications.