STPS2H100AFN Schottky Diode Equivalent & Substitute Parts

Part Overview

The STPS2H100AFN is a surface mount Schottky rectifier diode manufactured by STMicroelectronics, rated for 100 V DC reverse voltage and 2 A average rectified current. This component is classified as obsolete, which necessitates identification of equivalent substitute parts for ongoing design support and procurement continuity. The STPS2H100AFN features fast recovery characteristics (≤500 ns for currents >200 mA) and is packaged in the DO-221AC SMAflat form factor with notched leads. Finding suitable alternatives ensures design flexibility and supply chain resilience for applications requiring this electrical and mechanical specification class.

Substiute Parts

STPS2H100AFN

STMicroelectronicsIn Stock: 2337STPS2H100AFN Datasheet

Current PartRFQ

STPS2H100AF

STMicroelectronicsIn Stock: 5292STPS2H100AF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the STPS2H100AFN is based on strict electrical and mechanical parameter matching within the Schottky diode category. The following parameters determine substitution eligibility:

Electrical Parameters (Must Match):

• Voltage - DC Reverse (Vr) Max: 100 V
• Current - Average Rectified (Io): 2 A
• Voltage - Forward (Vf) Max @ If: 790 mV @ 2 A
• Speed: Fast Recovery ≤500 ns (>200 mA)
• Current - Reverse Leakage @ Vr: 1 µA @ 100 V
• Technology: Schottky

Mechanical Parameters (Must Match):

• Package / Case: DO-221AC, SMA Flat Leads
• Mounting Type: Surface Mount

Compliance Parameters (Must Match):

• RoHS Status: ROHS3 Compliant

The STPS2H100AF qualifies as a direct substitute because it maintains identical electrical specifications, package form factor, and regulatory compliance status. The primary distinction is product status (active vs. obsolete) and packaging format (Tape & Reel vs. Cut Tape).

Parameter Comparison

Engineering Selection Recommendations

The STPS2H100AF is the direct electrical and mechanical equivalent of the STPS2H100AFN. Selection between these parts should be based on the following engineering criteria:

Use STPS2H100AF when:

• Active production status is required for new designs or ongoing procurement
• Automotive-grade qualification (AEC-Q101) is specified or beneficial for application reliability
• Extended operating temperature range (-65°C to 175°C) is required
• Tape & Reel packaging format is compatible with assembly processes
• Long-term supply chain continuity is a priority

Use STPS2H100AFN when:

• Existing inventory of Cut Tape format is available and acceptable
• Legacy design documentation specifies this exact part number
• Packaging format compatibility with existing assembly equipment is critical

Both parts maintain identical electrical performance, forward voltage characteristics, reverse leakage specifications, and recovery speed. The DO-221AC SMAflat package footprint is identical, ensuring PCB layout compatibility. Both parts comply with ROHS3 regulations and carry unlimited moisture sensitivity level (MSL 1).

Frequently Asked Questions (FAQ)

Q: Can STPS2H100AF be used as a direct replacement for STPS2H100AFN in existing designs?

A: Yes. The STPS2H100AF provides identical electrical specifications (100 V reverse voltage, 2 A current rating, 790 mV forward voltage at 2 A, and ≤500 ns recovery time) and uses the same DO-221AC SMAflat package. PCB footprints and circuit performance are equivalent. The primary difference is product status (active vs. obsolete) and packaging format (Tape & Reel vs. Cut Tape).

Q: What is the difference between Cut Tape and Tape & Reel packaging?

A: Cut Tape (CT) format provides individual component strips cut to specified lengths, suitable for manual assembly or small-volume production. Tape & Reel (TR) format supplies components on continuous reel tape, optimized for automated pick-and-place assembly equipment. Both formats contain identical components; the difference is in supply and handling format only.

Q: Does the STPS2H100AF automotive qualification affect circuit performance?

A: No. AEC-Q101 qualification indicates the part meets automotive industry reliability and testing standards. It does not alter electrical performance or forward voltage characteristics. The automotive grade ensures enhanced quality control and reliability documentation, beneficial for applications requiring traceability and compliance verification.

Q: Are there any thermal performance differences between these parts?

A: No. Both parts share identical forward voltage (790 mV @ 2 A) and reverse leakage (1 µA @ 100 V) specifications, which directly determine heat dissipation. The STPS2H100AF specifies an extended operating temperature range (-65°C to 175°C) compared to the STPS2H100AFN (175°C maximum junction temperature), but this reflects measurement capability rather than thermal performance change.

Q: Can these parts be used interchangeably in high-frequency switching applications?

A: Yes. Both parts meet the fast recovery specification (≤500 ns for currents >200 mA), which is the critical parameter for switching performance. Recovery time determines switching losses and frequency capability in rectification circuits. Identical recovery specifications ensure equivalent performance in high-frequency applications.

Q: What compliance certifications apply to both parts?

A: Both STPS2H100AFN and STPS2H100AF are ROHS3 compliant and REACH unaffected. The STPS2H100AF additionally carries AEC-Q101 automotive qualification. Both parts have unlimited moisture sensitivity level (MSL 1), indicating no special storage or handling requirements.