ASPI-1306T-471M-T Equivalent & Substitute Parts

Part Overview

The ASPI-1306T-471M-T is a 470 µH unshielded drum core wirewound inductor manufactured by Abracon LLC, designed for surface mount applications. This component is rated for 820 mA continuous current with a maximum DC resistance of 850 mOhm and operates across the temperature range of -40°C to 85°C. The part is currently active in production and ROHS3 compliant, making it suitable for modern electronic assemblies requiring fixed inductance filtering, energy storage, or signal conditioning in power management and RF circuits.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across critical parameters including inductance value, current rating, DC resistance, package dimensions, and operating temperature specifications.

Substiute Parts

ASPI-1306T-471M-T

Abracon LLCIn Stock: 783ASPI-1306T-471M-T Datasheet

Current PartRFQ

74458247

Würth ElektronikIn Stock: 326074458247 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ASPI-1306T-471M-T is determined by strict equivalence across the following critical parameters:

• Inductance Value: 470 µH ±20% tolerance
• Current Rating: Minimum 820 mA continuous current capability
• DC Resistance: Maximum 850 mOhm
• Core Material & Type: Ferrite drum core, unshielded construction
• Mounting Configuration: Surface mount technology
• Package Footprint: 0.730" L x 0.600" W (18.54mm x 15.24mm) with maximum seated height of 0.280" (7.11mm)
• Compliance: ROHS3 compliant status

The substitute part 74458247 (Würth Elektronik WE-PD4 series) meets all critical electrical and mechanical parameters required for direct substitution in applications using the ASPI-1306T-471M-T.

Parameter Comparison

Engineering Selection Recommendations

Both the ASPI-1306T-471M-T and 74458247 are active production components with full ROHS3 compliance and REACH unaffected status, qualifying them for use in regulated electronic assemblies. The substitute part 74458247 offers an extended operating temperature range (-40°C to 125°C versus -40°C to 85°C), providing additional thermal margin in applications subject to elevated ambient conditions. The saturation current specification of 1.6 A for the Würth Elektronik part exceeds the 1.4 A rating of the Abracon part, indicating improved headroom under transient current conditions. Both components share identical inductance, current rating, DC resistance, package footprint, and test frequency specifications, ensuring functional equivalence in circuit applications.

Frequently Asked Questions (FAQ)

Q: Can the 74458247 be used as a direct replacement for ASPI-1306T-471M-T in existing designs?

A: Yes. Both parts share identical inductance (470 µH ±20%), current rating (820 mA), DC resistance (850 mOhm max), core type (ferrite drum core unshielded), package dimensions (0.730" L x 0.600" W, 18.54mm x 15.24mm), and seated height (0.280", 7.11mm). The footprint and electrical performance are equivalent for direct PCB substitution.

Q: What are the differences between these two inductors?

A: The primary differences are: (1) saturation current—74458247 rated at 1.6 A versus 1.4 A for ASPI-1306T-471M-T; (2) self-resonant frequency—3 MHz for ASPI-1306T-471M-T versus 2.3 MHz for 74458247; (3) operating temperature range—74458247 extends to 125°C maximum versus 85°C for ASPI-1306T-471M-T. All other critical parameters are identical.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both ASPI-1306T-471M-T and 74458247 are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for commercial and industrial electronic applications.

Q: Does package compatibility require any PCB layout modifications?

A: No. Both inductors use identical nonstandard surface mount packages with matching footprints (0.730" L x 0.600" W, 18.54mm x 15.24mm) and seated height (0.280", 7.11mm). No PCB redesign is necessary for substitution.

Q: Which part should be selected for high-temperature applications?

A: The 74458247 (Würth Elektronik) is suitable for applications requiring operation up to 125°C. The ASPI-1306T-471M-T is rated to 85°C maximum and should be selected only when the application temperature range does not exceed this limit.