PICOASMDC012S-2 Equivalent & Substitute Parts

Part Overview

The PICOASMDC012S-2 is a Polymeric PTC Resettable Fuse manufactured by Littelfuse Inc., rated at 15V with a 120 mA hold current. This component is designed for overcurrent protection in surface mount applications using the 0805 (2012 Metric) package format. The part is currently Active in product status with 4043 units in stock. PTC resettable fuses are essential in circuit protection where automatic recovery after fault conditions is required, eliminating the need for manual fuse replacement.

Substiute Parts

PICOASMDC012S-2

Littelfuse Inc.In Stock: 4062PICOASMDC012S-2 Datasheet

Current PartRFQ

PTSA080515V012

Eaton - Electronics DivisionIn Stock: 2311PTSA080515V012 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PICOASMDC012S-2 is determined by the following critical electrical and mechanical parameters:

• Voltage Rating: 15V maximum
• Hold Current (Ih): 120 mA
• Trip Current (It): 300 mA
• Package Format: 0805 (2012 Metric) surface mount
• Current - Max: 20 A
• Resistance - Post Trip (R1): Maximum 9 Ohms

The substitute part PTSA080515V012 meets all mandatory electrical specifications and package requirements, making it functionally equivalent for circuit protection applications requiring these exact ratings.

Parameter Comparison

Engineering Selection Recommendations

Both the PICOASMDC012S-2 and PTSA080515V012 are Active products suitable for new designs and production applications. The PICOASMDC012S-2 carries ROHS3 compliance, while the PTSA080515V012 is REACH Unaffected and holds UL approval. Selection between these parts should be based on supply availability, manufacturing certifications required by your application, and PCB layout constraints related to package geometry variations (standard versus concave configuration).

Frequently Asked Questions (FAQ)

Q: Can PTSA080515V012 directly replace PICOASMDC012S-2 in existing designs?

A: Yes. Both parts share identical electrical ratings (15V, 120 mA hold current, 300 mA trip current) and the same 0805 (2012 Metric) surface mount package. The primary difference is the concave package variant of the Eaton part, which may require PCB layout verification for clearance compatibility.

Q: What are the key electrical parameters that define substitution eligibility?

A: Voltage rating (15V), hold current (120 mA), trip current (300 mA), maximum current (20 A), and post-trip resistance (9 Ohms maximum) are the critical parameters. Any substitute must match these specifications exactly.

Q: Are there compliance differences between these parts?

A: The PICOASMDC012S-2 is ROHS3 compliant. The PTSA080515V012 is REACH Unaffected and carries UL approval. Both have MSL 1 (Unlimited) moisture sensitivity ratings. Verify compliance requirements for your specific application and region.

Q: What is the difference between the standard and concave package variants?

A: The PTSA080515V012 uses a concave package configuration, which affects the physical profile and may impact PCB footprint clearance. Verify mechanical compatibility with your board design before substitution.

Q: Are both parts suitable for new production designs?

A: Yes. Both parts maintain Active product status, indicating ongoing manufacturer support and availability for new designs and production applications.