FPF2103 Equivalent & Substitute Parts

Part Overview

The FPF2103 is a Power Switch/Driver IC from onsemi's IntelliMAX™ series, configured as a 1:1 P-Channel high-side switch rated for 200mA output current in a SOT-23-5 surface mount package. The device features on/off control with integrated status flag and comprehensive fault protection including current limiting, over-temperature, and under-voltage lockout (UVLO).

The FPF2103 is classified as obsolete. Identifying equivalent substitute parts ensures design continuity and supply chain reliability for applications requiring this specific power switching functionality.

Substiute Parts

FPF2103

onsemiIn Stock: 1368FPF2103 Datasheet

Current PartRFQ

FPF2102

onsemiIn Stock: 17130FPF2102 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the FPF2103 is determined by strict equivalence across the following critical parameters:

• Output Type & Configuration: P-Channel, high-side, 1:1 ratio
• Current Rating: 200mA maximum output current
• Load Voltage Range: 1.8V ~ 5.5V
• On-Resistance: 125mOhm typical
• Control Interface: On/Off non-inverting input
• Protection Features: Current limiting, over-temperature, UVLO
• Package: SOT-23-5 (SC-74A, SOT-753)
• Mounting: Surface mount

The FPF2102 meets all these criteria and is classified as a parametric equivalent. Both devices share identical electrical specifications, protection mechanisms, and physical packaging, making them functionally interchangeable within the specified operating parameters.

Parameter Comparison

Engineering Selection Recommendations

Both the FPF2103 and FPF2102 are classified as obsolete products. The FPF2102 is the direct parametric equivalent with full electrical and mechanical compatibility. Selection between these parts should be based on:

• Availability: The FPF2102 currently has 17,100 units in stock compared to 1,346 units for the FPF2103, providing superior supply chain availability.
• Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements.
• Certification: Both devices carry identical MSL ratings (1 - Unlimited) and ECCN/HTSUS classifications.

For new designs or production requiring this power switch functionality, the FPF2102 offers equivalent performance with improved inventory position.

Frequently Asked Questions (FAQ)

Q: Can the FPF2102 directly replace the FPF2103 in existing designs?

A: Yes. The FPF2102 is a parametric equivalent with identical electrical specifications, protection features, and SOT-23-5 packaging. No circuit modifications are required.

Q: Are there any differences in pin configuration between these parts?

A: No. Both devices use the same SC-74A/SOT-753 package with identical pin assignments and functionality.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the FPF2103 and FPF2102 are ROHS3 compliant, REACH unaffected, and carry identical MSL ratings of 1 (Unlimited).

Q: What is the significance of the obsolete product status?

A: Both parts are classified as obsolete, indicating they are no longer in active production. The FPF2102 offers superior availability with significantly higher stock levels, making it the preferred choice for ongoing supply requirements.

Q: Are the thermal and electrical performance characteristics identical?

A: Yes. Both devices share identical on-resistance (125mOhm typical), current ratings (200mA), operating temperature range (-40°C ~ 85°C), and fault protection mechanisms.