ISC1210BN1R5J Equivalent & Substitute Parts

Part Overview

The ISC1210BN1R5J 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 operates at 370 mA current rating with 750mOhm maximum DC resistance and is rated for -55°C to 125°C operating temperature. The part is currently active in production. Equivalent and substitute parts are identified based on matching electrical specifications and mechanical compatibility within the 1210 package form factor.

Key Parameters

Parameter	Value
Inductance	1.5 µH
Tolerance	±5%
Current Rating	370 mA
DC Resistance (DCR)	750mOhm Max
Package / Case	1210 (3225 Metric)
Mounting Type	Surface Mount
Shielding	Shielded
Core Material	Iron Powder
Operating Temperature	-55°C ~ 125°C

Substitute Part Grouping Explanation

Substitute parts for the ISC1210BN1R5J are qualified based on the following critical parameters:

Inductance Value: 1.5 µH (exact match required)
Tolerance: ±5% (exact match required)
Current Rating: 370 mA (exact match required)
Package / Case: 1210 (3225 Metric) (exact match required)
Mounting Type: Surface Mount (exact match required)
DC Resistance: Maximum 850mOhm (allowable variance from 750mOhm specification)

The substitute parts identified are manufactured by TDK Corporation and utilize ferrite core material instead of iron powder. All substitutes maintain identical inductance, tolerance, current rating, and package specifications. The primary differences are core material composition, shielding configuration, and operating temperature range.

Parameter Comparison

Parameter	ISC1210BN1R5J (Vishay Dale)	NLV32T-1R5J-EF (TDK)	NLV32T-1R5J-EFD (TDK)	NLV32T-1R5J-PF (TDK)
Inductance	1.5 µH	1.5 µH	1.5 µH	1.5 µH
Tolerance	±5%	±5%	±5%	±5%
Current Rating (Amps)	370 mA	370 mA	370 mA	370 mA
DC Resistance (DCR)	750mOhm Max	850mOhm Max	850mOhm Max	850mOhm Max
Q @ Freq	30 @ 7.96MHz	30 @ 7.96MHz	30 @ 7.96MHz	30 @ 7.96MHz
Frequency - Self Resonant	90MHz	85MHz	85MHz	85MHz
Operating Temperature	-55°C ~ 125°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C
Package / Case	1210 (3225 Metric)	1210 (3225 Metric)	1210 (3225 Metric)	1210 (3225 Metric)
Shielding	Shielded	Unshielded	Unshielded	Unshielded
Core Material	Iron Powder	Ferrite	Ferrite	Ferrite
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Not For New Designs

Engineering Selection Recommendations

NLV32T-1R5J-EF is the primary substitute for new designs. This part maintains all critical electrical parameters while offering ROHS3 compliance and active product status. The ferrite core construction and unshielded configuration differ from the original ISC1210BN1R5J, requiring circuit-level evaluation for electromagnetic compatibility.

NLV32T-1R5J-EFD is an alternative substitute with identical electrical specifications to NLV32T-1R5J-EF and includes AEC-Q200 automotive qualification rating. This part is suitable for applications requiring automotive-grade reliability.

NLV32T-1R5J-PF is not recommended for new designs due to its "Not For New Designs" product status, though it remains available in inventory. This part is suitable only for legacy system maintenance or replacement applications.

All TDK substitutes operate within a narrower temperature range (-40°C to 105°C) compared to the original part (-55°C to 125°C). Applications requiring the full -55°C to 125°C range must retain the ISC1210BN1R5J or evaluate alternative sources.

Frequently Asked Questions (FAQ)

Q: Can NLV32T-1R5J-EF directly replace ISC1210BN1R5J in existing designs?

A: Direct mechanical and electrical substitution is possible based on matching inductance, tolerance, current rating, and package specifications. However, the change from shielded iron powder core to unshielded ferrite core requires electromagnetic compatibility assessment. Applications sensitive to radiated emissions or susceptible to external magnetic field interference may require circuit redesign or shielding modifications.

Q: What is the impact of the 100mOhm increase in DC resistance?

A: The NLV32T substitute parts specify 850mOhm maximum DCR compared to 750mOhm for the ISC1210BN1R5J. This 13% increase results in proportionally higher resistive losses. For current-limited applications, this may increase component heating. Thermal analysis is recommended for designs operating near maximum current ratings.

Q: Are the TDK substitutes suitable for high-temperature applications?

A: The TDK NLV32T series operates from -40°C to 105°C, which is narrower than the ISC1210BN1R5J range of -55°C to 125°C. Applications requiring operation below -40°C or above 105°C must retain the original Vishay Dale part or identify alternative sources.

Q: What is the difference between NLV32T-1R5J-EF and NLV32T-1R5J-EFD?

A: Both parts are electrically and mechanically identical. NLV32T-1R5J-EFD includes AEC-Q200 automotive qualification, making it suitable for automotive and high-reliability applications. NLV32T-1R5J-EF is the standard industrial version without automotive certification.

Q: Why is NLV32T-1R5J-PF marked "Not For New Designs"?

A: This designation indicates the part is in mature/legacy status. While available in inventory, it is not recommended for new product development. Use NLV32T-1R5J-EF or NLV32T-1R5J-EFD for new designs.

Q: Does the unshielded configuration of TDK substitutes affect circuit performance?

A: Unshielded inductors are more susceptible to external magnetic field coupling and radiate more electromagnetic energy than shielded designs. Circuit-level evaluation is necessary to determine if this affects signal integrity, noise performance, or regulatory compliance in the target application.

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