ISC1210ER1R5K Equivalent & Substitute Parts

Part Overview

The ISC1210ER1R5K is a 1.5 µH shielded drum core wirewound inductor manufactured by Vishay Dale, designed for surface mount applications in the 1210 (3225 Metric) package. This component is rated for 370 mA continuous current with a maximum DC resistance of 750mOhm and operates across the temperature range of -55°C to 125°C. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances.

Substiute Parts

ISC1210ER1R5K

Vishay DaleIn Stock: 1045ISC1210ER1R5K Datasheet

Current PartRFQ

744764015

Würth ElektronikIn Stock: 3272744764015 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ISC1210ER1R5K are identified based on the following critical parameters that must remain equivalent:

• Inductance value: 1.5 µH with ±10% tolerance
• Current rating: 370 mA minimum
• Package / Case: 1210 (3225 Metric) surface mount
• Mounting type: Surface mount
• Physical dimensions: Compatible with 1210 footprint
• RoHS compliance: ROHS3 Compliant

The Würth Elektronik 744764015 qualifies as a substitute based on matching inductance, current rating, package dimensions, and surface mount compatibility. Variations in core material (ferrite vs. iron powder), shielding configuration (unshielded vs. shielded), and operating temperature range represent design trade-offs that may be acceptable depending on application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the ISC1210ER1R5K and 744764015 meet the core electrical requirements of 1.5 µH inductance at 370 mA current rating within the 1210 surface mount package. Both components are ROHS3 compliant with MSL 1 rating and active production status.

The primary differences between these parts are:

DC Resistance: The ISC1210ER1R5K specifies 750mOhm maximum, while the 744764015 specifies 850mOhm maximum. This 100mOhm difference may impact thermal performance in current-limited applications.

Operating Temperature Range: The ISC1210ER1R5K operates from -55°C to 125°C, providing extended low-temperature performance compared to the 744764015 range of -40°C to 105°C.

Shielding and Core Material: The ISC1210ER1R5K uses an iron powder core with shielding, while the 744764015 uses an unshielded ferrite core. Shielding reduces electromagnetic interference emission, which may be critical in noise-sensitive applications.

Self Resonant Frequency: The 744764015 exhibits a higher self resonant frequency (250MHz vs. 90MHz), which may provide advantages in high-frequency applications.

Selection between these parts should be based on specific application requirements regarding thermal dissipation, temperature extremes, EMI performance, and frequency response characteristics.

Frequently Asked Questions (FAQ)

Q: Can the 744764015 be used as a direct replacement for the ISC1210ER1R5K?

A: The 744764015 is mechanically and electrically compatible for applications where the operating temperature range of -40°C to 105°C is acceptable, the 100mOhm higher DC resistance does not exceed thermal limits, and unshielded operation does not introduce unacceptable EMI. Verification against specific application requirements is necessary.

Q: What is the significance of shielding in these inductors?

A: The ISC1210ER1R5K includes shielding to contain electromagnetic fields and reduce radiated emissions. The 744764015 is unshielded. Applications sensitive to EMI or operating in noise-critical environments may require the shielded variant.

Q: Are the physical dimensions identical between these parts?

A: The parts are dimensionally equivalent within manufacturing tolerance. Both fit the 1210 (3225 Metric) footprint with maximum seated heights of approximately 2.40-2.41mm. PCB layout compatibility is maintained.

Q: How do the core materials affect performance?

A: Iron powder cores (ISC1210ER1R5K) and ferrite cores (744764015) exhibit different frequency response characteristics. The ferrite core in the 744764015 provides higher self resonant frequency (250MHz vs. 90MHz), which may be advantageous in higher frequency applications.

Q: Are both parts RoHS compliant?

A: Yes, both the ISC1210ER1R5K and 744764015 are ROHS3 compliant with MSL 1 (unlimited) moisture sensitivity rating, suitable for standard PCB assembly processes.