ASPI-0403S-822M Equivalent & Substitute Parts

Part Overview

The ASPI-0403S-822M is a fixed inductor manufactured by Abracon LLC with an inductance value of 8.2 mH and a current rating of 30 mA. This component is classified as obsolete and is no longer in active production. Due to its obsolete status, identifying equivalent substitute parts is essential for ongoing system maintenance, repair, and redesign applications where this inductor is specified in legacy designs.

Substiute Parts

ASPI-0403S-822M

Abracon LLCIn Stock: 852ASPI-0403S-822M Datasheet

Current PartRFQ

SRR1208-822KL

Bourns Inc.In Stock: 1442SRR1208-822KL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ASPI-0403S-822M is determined by the following critical electrical and mechanical parameters:

• Inductance Value: 8.2 mH (primary functional requirement)
• Current Rating: Minimum 30 mA (must meet or exceed the original specification)
• DC Resistance: Electrical characteristic affecting circuit performance
• RoHS Compliance: ROHS3 Compliant status for regulatory alignment
• Moisture Sensitivity Level: MSL 1 for environmental compatibility
• REACH Compliance: REACH Unaffected status for material restrictions

The substitute part SRR1208-822KL from Bourns Inc. meets these core substitution criteria with matching inductance and superior current handling capability.

Parameter Comparison

Engineering Selection Recommendations

The SRR1208-822KL from Bourns Inc. is the qualified substitute for the obsolete ASPI-0403S-822M based on the following engineering criteria:

Electrical Compatibility: Both components share the identical 8.2 mH inductance value, which is the primary functional specification. The substitute part provides a current rating of 200 mA, which exceeds the original 30 mA requirement, ensuring adequate performance margin in the application.

Regulatory Compliance: Both the original and substitute parts maintain ROHS3 Compliant and REACH Unaffected status, satisfying environmental and material restriction requirements for continued use in regulated applications.

Environmental Specifications: Both components feature Moisture Sensitivity Level 1 (Unlimited), indicating compatibility with standard storage and handling conditions without special moisture control requirements.

Product Status Advantage: The substitute part maintains Active product status with current manufacturing support, ensuring long-term availability and supply chain continuity compared to the obsolete original part.

DC Resistance Consideration: The substitute part exhibits lower DC resistance (17 Ohm Max versus 29.81 Ohm), which may result in reduced power dissipation and improved circuit efficiency in the application.

Frequently Asked Questions (FAQ)

Q: Can the SRR1208-822KL directly replace the ASPI-0403S-822M in all applications?

A: The SRR1208-822KL meets the core electrical requirements with matching 8.2 mH inductance and superior current handling. However, physical package differences must be verified for mechanical fit in the PCB layout. The substitute is a surface mount component with specified dimensions (12.70mm x 12.70mm x 8.50mm max height), whereas the original part packaging details are not provided.

Q: What are the key differences between these two inductors?

A: The primary differences are: (1) Current rating—the substitute supports 200 mA versus 30 mA for the original; (2) DC resistance—the substitute has 17 Ohm Max versus 29.81 Ohm for the original; (3) Shielding—the substitute is shielded; (4) Core type—the substitute uses ferrite drum core wirewound construction; (5) Product status—the substitute is active while the original is obsolete.

Q: Are there any compliance concerns when substituting this part?

A: No compliance concerns exist. Both parts maintain identical RoHS3 Compliant and REACH Unaffected status, and both feature MSL 1 (Unlimited) moisture sensitivity levels, ensuring regulatory and environmental compatibility.

Q: Does the lower DC resistance of the substitute affect circuit performance?

A: The lower DC resistance (17 Ohm Max versus 29.81 Ohm) of the substitute typically results in reduced power dissipation and improved efficiency. This is generally beneficial for circuit performance, though specific circuit analysis may be required for applications with tight power budget constraints.

Q: What packaging format is the substitute part supplied in?

A: The SRR1208-822KL is supplied in Tape & Reel (TR) packaging, which is standard for surface mount production environments. The original part packaging format is not specified in available documentation.

Q: Is the inductance tolerance specification important for substitution?

A: The substitute part specifies ±10% inductance tolerance. The original part tolerance is not documented. For applications requiring tighter tolerance control, this specification difference should be evaluated against circuit requirements.