ISC1210BN1R0K Equivalent & Substitute Parts

Part Overview

The ISC1210BN1R0K is a 1 µH shielded drum core wirewound inductor manufactured by Vishay Dale, rated for 400 mA with a maximum DC resistance of 600mOhm. This component is classified as Active and is currently in stock. The part operates across a temperature range of -55°C to 125°C and is housed in a 1210 (3225 Metric) surface mount package. Substitute parts are identified when equivalent electrical performance can be maintained within the specified inductance, current rating, and frequency characteristics while accommodating variations in shielding, core material, and DC resistance within acceptable engineering tolerances.

Substiute Parts

ISC1210BN1R0K

Vishay DaleIn Stock: 926ISC1210BN1R0K Datasheet

Current PartRFQ

74476401

Würth ElektronikIn Stock: 217874476401 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ISC1210BN1R0K are qualified based on the following critical parameters:

• Inductance value of 1 µH with ±10% tolerance
• Current rating of 400 mA minimum
• Surface mount package format 1210 (3225 Metric)
• DC resistance within acceptable operational limits
• Frequency characteristics compatible with the test frequency of 7.96 MHz

The Würth Elektronik 74476401 qualifies as a substitute based on matching inductance, current rating, package dimensions, and tolerance specifications. Variations in core material (ferrite vs. iron powder), shielding configuration (unshielded vs. shielded), and DC resistance (700mOhm vs. 600mOhm) are permissible within the scope of equivalent substitution when the primary electrical parameters remain constant.

Parameter Comparison

Engineering Selection Recommendations

Both the ISC1210BN1R0K and 74476401 maintain equivalent electrical performance at the specified inductance, current rating, and frequency test parameters. The primary differentiators are compliance certifications and operating temperature ranges.

The Würth Elektronik 74476401 is ROHS3 compliant, whereas the Vishay Dale ISC1210BN1R0K is RoHS non-compliant. Applications requiring RoHS3 compliance should specify the 74476401. The ISC1210BN1R0K supports an extended operating temperature range of -55°C to 125°C compared to the 74476401 range of -40°C to 105°C. Applications requiring operation below -40°C or above 105°C must retain the ISC1210BN1R0K.

The 100mOhm increase in maximum DC resistance for the 74476401 (700mOhm vs. 600mOhm) is within acceptable tolerance for most applications but should be evaluated in power dissipation-critical circuits.

Frequently Asked Questions (FAQ)

Q: Can the 74476401 directly replace the ISC1210BN1R0K in all applications?

A: Direct replacement is possible when the application does not require operation below -40°C or above 105°C, and when RoHS compliance is not mandated. The increased DC resistance of the 74476401 must be evaluated for power dissipation impact.

Q: What is the significance of shielding differences between these parts?

A: The ISC1210BN1R0K is shielded while the 74476401 is unshielded. Shielding reduces electromagnetic interference emission and susceptibility. Applications sensitive to EMI should retain the shielded ISC1210BN1R0K configuration.

Q: Are the physical dimensions compatible for PCB layout?

A: Both parts use the 1210 (3225 Metric) package with nearly identical footprints. Dimensions are 0.126" L x 0.098" W with maximum seated heights of 0.095" and 0.094" respectively. PCB layouts designed for either part are mechanically compatible.

Q: What is the impact of core material differences?

A: The ISC1210BN1R0K uses iron powder core material while the 74476401 uses ferrite. Both achieve equivalent inductance and Q factor at the test frequency of 7.96 MHz. Core material selection affects frequency response characteristics beyond the test frequency and temperature stability, which should be evaluated for specific application requirements.

Q: Does packaging format affect substitution eligibility?

A: The ISC1210BN1R0K is supplied in Bulk packaging while the 74476401 is supplied in Tape & Reel (TR) format. Both are surface mount components in identical package cases. Packaging format does not affect electrical equivalence but may impact procurement and assembly processes.