AISC-1210H-1R0N-T Equivalent & Substitute Parts

Part Overview

The AISC-1210H-1R0N-T is a 1 µH unshielded drum core wirewound inductor manufactured by Abracon LLC, rated for 2.3 A continuous current with a maximum DC resistance of 63mOhm. This component is designed for surface mount applications in the 1210 (3225 Metric) package format. The part is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

AISC-1210H-1R0N-T

Abracon LLCIn Stock: 899AISC-1210H-1R0N-T Datasheet

Current PartRFQ

74479298210

Würth ElektronikIn Stock: 202074479298210 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AISC-1210H-1R0N-T is determined by the following critical parameters:

• Inductance Value: Must be 1 µH with ±30% tolerance
• Package / Case: Must be 1210 (3225 Metric) surface mount
• Current Rating: Must meet or exceed 2.3 A
• DC Resistance: Must not exceed 63mOhm to maintain circuit performance
• Compliance: Must maintain ROHS3 compliance and REACH unaffected status

The substitute part 74479298210 (Würth Elektronik WE-PMCI series) meets all critical substitution criteria. While this part features shielding (versus the original unshielded design) and operates across a wider temperature range (-40°C ~ 125°C versus -25°C ~ 85°C), these represent functional improvements rather than incompatibilities. The substitute delivers superior DC resistance (54mOhm versus 63mOhm maximum) and higher current saturation capability (4A), enabling direct replacement in the specified application.

Parameter Comparison

Engineering Selection Recommendations

The 74479298210 (Würth Elektronik WE-PMCI) is the qualified substitute for the obsolete AISC-1210H-1R0N-T. Selection is based on the following engineering factors:

Compliance & Availability: The substitute maintains full ROHS3 compliance and REACH unaffected status, matching the original part's regulatory requirements. As an active product with 2010 units in stock, it provides immediate procurement availability compared to the obsolete original.

Electrical Performance: The substitute meets all minimum electrical requirements. The 2.5 A current rating exceeds the original 2.3 A specification, and the 54mOhm maximum DC resistance is superior to the original 63mOhm specification. Both parts share identical 1 µH inductance and ±30% tolerance specifications.

Thermal & Environmental: The substitute's extended operating temperature range (-40°C ~ 125°C) encompasses the original range (-25°C ~ 85°C), providing broader environmental compatibility.

Physical Compatibility: Both parts use the 1210 (3225 Metric) surface mount package. The substitute dimensions (3.20mm L x 2.50mm W x 1.00mm H seated) are compatible with PCB layouts designed for the original (4.60mm L x 2.50mm W x 2.50mm H seated).

Frequently Asked Questions (FAQ)

Q: Can the 74479298210 be used as a direct replacement for the AISC-1210H-1R0N-T?

A: Yes. Both parts share the same inductance value (1 µH), tolerance (±30%), package format (1210 / 3225 Metric), and surface mount configuration. The substitute meets or exceeds all electrical specifications of the original part.

Q: What is the difference between shielded and unshielded inductors?

A: Shielded inductors (like the 74479298210) contain electromagnetic shielding to reduce radiated emissions and susceptibility to external magnetic fields. Unshielded inductors (like the AISC-1210H-1R0N-T) have no such shielding. In most applications, shielded inductors provide improved performance without functional incompatibility.

Q: Does the substitute's lower DC resistance affect circuit operation?

A: No. Lower DC resistance (54mOhm versus 63mOhm maximum) represents an improvement, reducing resistive losses and heat generation in the inductor. This is beneficial for circuit efficiency and reliability.

Q: Are there any package dimension concerns?

A: The substitute is slightly smaller in length (3.20mm versus 4.60mm) and height (1.00mm versus 2.50mm seated). Verify PCB layout clearances, particularly for height-constrained applications. The width (2.50mm) is identical.

Q: What is the current saturation rating, and why does the substitute specify it?

A: Current saturation (Isat) is the current level at which inductor core saturation begins, causing inductance to degrade. The substitute specifies 4A saturation, providing design margin above the 2.5A continuous rating. The original part does not specify this parameter.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the AISC-1210H-1R0N-T and 74479298210 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.