ISC1210ER8R2K Equivalent & Substitute Parts

Part Overview

The ISC1210ER8R2K is a 8.2 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 current rating of 195 mA and a maximum DC resistance of 1.65Ohm. The part is currently active in production and ROHS3 compliant. Equivalent substitute parts may be required due to inventory availability, supply chain considerations, or specific application requirements where alternative core materials or electrical characteristics are acceptable within design tolerances.

Substiute Parts

ISC1210ER8R2K

Vishay DaleIn Stock: 1009ISC1210ER8R2K Datasheet

Current PartRFQ

CMH322522-8R2KL

Bourns Inc.In Stock: 3102CMH322522-8R2KL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ISC1210ER8R2K with the CMH322522-8R2KL is permissible based on the following alignment of critical electrical and mechanical parameters:

Both parts maintain identical inductance values of 8.2 µH with ±10% tolerance, ensuring functional equivalence in circuits designed for this inductance specification. Both components are housed in the 1210 (3225 Metric) surface mount package with compatible physical dimensions and mounting characteristics. Both parts feature shielded drum core wirewound construction, operate across the identical temperature range of -55°C to 125°C, and carry ROHS3 compliance and unlimited moisture sensitivity level (MSL 1) ratings.

The primary differences between these parts are the core material composition (iron powder versus ferrite), current rating (195 mA versus 170 mA), and DC resistance (1.65Ohm Max versus 2Ohm Max). These variations remain within acceptable substitution parameters for applications where the substitute part's current rating and resistance characteristics do not exceed circuit design limits.

Parameter Comparison

Engineering Selection Recommendations

Both the ISC1210ER8R2K and CMH322522-8R2KL are active production components with ROHS3 compliance and identical moisture sensitivity ratings. Selection between these parts should be based on circuit current requirements and acceptable DC resistance limits. The ISC1210ER8R2K supports a higher current rating of 195 mA with lower DC resistance of 1.65Ohm Max, making it suitable for applications requiring maximum current capacity. The CMH322522-8R2KL, with a 170 mA current rating and 2Ohm Max DC resistance, is suitable for applications where these electrical characteristics remain within design specifications. Both parts maintain identical inductance, tolerance, temperature range, and package specifications, ensuring mechanical and thermal compatibility in surface mount applications.

Frequently Asked Questions (FAQ)

Q: Can the CMH322522-8R2KL directly replace the ISC1210ER8R2K in all applications?

A: Direct replacement is permissible only when the circuit design accommodates the CMH322522-8R2KL's lower current rating (170 mA versus 195 mA) and higher DC resistance (2Ohm Max versus 1.65Ohm Max). If the application requires the full 195 mA current capacity or mandates lower resistance, the ISC1210ER8R2K is the appropriate choice.

Q: Are there physical compatibility concerns between these parts?

A: No. Both components use the identical 1210 (3225 Metric) surface mount package with compatible physical dimensions (0.126" L x 0.098" W) and seated heights within 0.001" of each other, ensuring PCB footprint compatibility.

Q: What is the significance of the core material difference?

A: The ISC1210ER8R2K uses iron powder core material while the CMH322522-8R2KL uses ferrite core material. Both achieve the same inductance value and Q factor at the test frequency of 7.96MHz. Core material selection affects frequency response characteristics and saturation behavior, but both materials are suitable for the specified operating parameters.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the ISC1210ER8R2K and CMH322522-8R2KL are ROHS3 compliant, REACH unaffected, carry MSL 1 (Unlimited) ratings, and share identical ECCN and HTSUS classifications.

Q: What is the self-resonant frequency difference between these parts?

A: The ISC1210ER8R2K has a self-resonant frequency of 35MHz, while the CMH322522-8R2KL has 30MHz. This difference reflects the core material composition and may affect performance in high-frequency applications near these frequency ranges.