ASPI-0804T-221M-T Equivalent & Substitute Parts

Part Overview

The ASPI-0804T-221M-T is a 220 µH unshielded drum core wirewound inductor manufactured by Abracon LLC, rated for 800 mA continuous current with a maximum DC resistance of 610mOhm. This surface mount component operates across the temperature range of -40°C to 85°C and is ROHS3 compliant. The part is currently active in production with 994 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter tolerances for this inductor category.

Key Parameters

Parameter	Value
Inductance	220 µH
Inductance Tolerance	±20%
Current Rating	800 mA
DC Resistance (DCR)	610mOhm Max
Core Type	Ferrite, Drum Core, Wirewound
Shielding	Unshielded
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package	Nonstandard
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the ASPI-0804T-221M-T is determined by the following criteria:

Inductance value must be 220 µH with ±20% tolerance
Core material must be ferrite with drum core wirewound construction
Shielding configuration must be unshielded
Mounting type must be surface mount, nonstandard package
Current rating must support the application requirement of 800 mA or higher
DC resistance must not exceed the maximum allowable value for the application
Operating temperature range must encompass or exceed the required operating conditions
RoHS3 compliance is mandatory

The three substitute parts identified meet these core electrical and mechanical parameters while offering variations in DC resistance, current saturation ratings, and operating temperature ranges.

Parameter Comparison

Parameter	ASPI-0804T-221M-T (Abracon)	B82476A1224M000 (EPCOS-TDK)	B82476B1224M100 (EPCOS-TDK)	UP2B-221-R (Eaton)
Inductance	220 µH	220 µH	220 µH	220 µH
Inductance Tolerance	±20%	±20%	±20%	±20%
Current Rating (Amps)	800 mA	800 mA	880 mA	773 mA
DC Resistance (DCR)	610mOhm Max	530mOhm Max	530mOhm Max	671.7mOhm Max
Core Type	Ferrite, Drum Core, Wirewound	Ferrite, Drum Core, Wirewound	Ferrite, Drum Core, Wirewound	Ferrite, Drum Core, Wirewound
Shielding	Unshielded	Unshielded	Unshielded	Unshielded
Operating Temperature	-40°C ~ 85°C	-55°C ~ 150°C	-55°C ~ 150°C	-40°C ~ 85°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Size / Dimension	0.510" L x 0.370" W (12.95mm x 9.40mm)	0.510" L x 0.370" W (12.95mm x 9.40mm)	0.510" L x 0.370" W (12.95mm x 9.40mm)	0.550" L x 0.410" W (13.97mm x 10.41mm)
Height - Seated (Max)	0.205" (5.21mm)	0.200" (5.08mm)	0.200" (5.08mm)	0.236" (6.00mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All three substitute parts maintain active product status and ROHS3 compliance, meeting regulatory requirements equivalent to the ASPI-0804T-221M-T.

B82476A1224M000 and B82476B1224M100 are manufactured by EPCOS-TDK Electronics and feature improved DC resistance specifications (530mOhm Max versus 610mOhm Max), resulting in lower power dissipation. Both parts support extended operating temperature ranges of -55°C to 150°C. B82476B1224M100 provides an increased current rating of 880 mA and includes AEC-Q200 automotive qualification. These EPCOS-TDK parts maintain identical footprint dimensions to the original part.

UP2B-221-R from Eaton Electronics operates within the same temperature range as the original part (-40°C to 85°C) and is part of the UNI-PAC™ series. This part exhibits slightly higher DC resistance (671.7mOhm Max) and marginally lower current rating (773 mA). Physical dimensions are larger, with increased length, width, and height compared to the original specification.

Frequently Asked Questions (FAQ)

Q: Can B82476A1224M000 or B82476B1224M100 be used as direct replacements for ASPI-0804T-221M-T?

A: Yes, both EPCOS-TDK parts are electrically and mechanically compatible. They maintain identical inductance values, tolerance, core construction, and footprint dimensions. The lower DC resistance values represent an improvement in performance characteristics.

Q: What is the difference between B82476A1224M100 and B82476B1224M100?

A: B82476B1224M100 provides a higher current rating (880 mA versus 800 mA) and includes AEC-Q200 automotive qualification. Both parts share identical DC resistance, operating temperature range, and physical dimensions.

Q: Is UP2B-221-R suitable for applications requiring the original ASPI-0804T-221M-T specifications?

A: UP2B-221-R meets the core electrical requirements of 220 µH inductance and supports 773 mA continuous current. However, the larger physical dimensions (0.550" L x 0.410" W versus 0.510" L x 0.370" W) and higher DC resistance (671.7mOhm Max) must be evaluated against specific board layout and thermal design constraints.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all three substitute parts are ROHS3 compliant and REACH unaffected, matching the regulatory status of the original ASPI-0804T-221M-T.

Q: What is the impact of DC resistance differences on circuit performance?

A: Lower DC resistance reduces power dissipation and heat generation. B82476A1224M000 and B82476B1224M100 (530mOhm Max) dissipate less power than ASPI-0804T-221M-T (610mOhm Max) at equivalent current levels. UP2B-221-R (671.7mOhm Max) exhibits higher dissipation and should be evaluated for thermal compatibility.

Q: Do the substitute parts require PCB layout modifications?

A: B82476A1224M000 and B82476B1224M100 maintain identical footprint dimensions and can be used without layout changes. UP2B-221-R requires PCB layout verification due to larger physical dimensions.

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