STPS1L30AFN Equivalent & Substitute Parts

Part Overview

The STPS1L30AFN is a Schottky rectifier diode manufactured by STMicroelectronics, rated for 30 V DC reverse voltage and 1 A average rectified current in a surface mount SMAflat package. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design requirements and procurement needs. Equivalent parts maintain identical electrical performance characteristics while offering active product status and improved supply chain availability.

Substiute Parts

STPS1L30AFN

STMicroelectronicsIn Stock: 92729STPS1L30AFN Datasheet

Current PartRFQ

STPS1L30A

STMicroelectronicsIn Stock: 17265STPS1L30A Datasheet

MFR RecommendedRFQ

SS13L_R1_00001

Panjit International Inc.In Stock: 2560SS13L_R1_00001 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the STPS1L30AFN is determined by strict equivalence across the following electrical and mechanical parameters:

Primary Equivalence Criteria:

• Voltage - DC Reverse (Vr) (Max): 30 V
• Current - Average Rectified (Io): 1 A
• Technology: Schottky
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr: 200 µA @ 30 V
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Package Compatibility Consideration: The STPS1L30AFN uses a DO-221AC SMAflat package. Substitute parts using DO-214AC SMA packages are mechanically compatible with standard surface mount assembly processes, though physical footprint dimensions differ slightly. Both package types are surface mount configurations suitable for automated placement.

Substitute parts are classified into two categories:

1. MFR Recommended Substitute (STPS1L30A): Active product status from original manufacturer STMicroelectronics with identical electrical specifications and RoHS/REACH compliance.

2. Similar Substitute (SS13L_R1_00001): Active product from alternative manufacturer Panjit International Inc. with equivalent electrical performance within specified tolerances and identical compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

STPS1L30A (MFR Recommended Substitute): The STPS1L30A is the primary substitute for the obsolete STPS1L30AFN. This part is manufactured by STMicroelectronics, the original equipment manufacturer, and maintains active product status. Electrical specifications are identical to the main part, including forward voltage, reverse voltage, current rating, and leakage characteristics. RoHS3 compliance and unlimited moisture sensitivity level (MSL 1) are maintained. The package transition from DO-221AC SMAflat to DO-214AC SMA is a standard industry practice for surface mount rectifier diodes. This substitute is suitable for direct replacement in new designs and production continuity.

SS13L_R1_00001 (Similar Substitute): The SS13L_R1_00001 from Panjit International Inc. provides an alternative substitute when STPS1L30A availability is constrained. This part meets all primary electrical equivalence criteria with identical reverse voltage, current rating, and leakage specifications. Forward voltage is specified at 420 mV @ 1 A, representing a 25 mV increase compared to the 395 mV specification of the main part and STPS1L30A. Operating temperature range is -55°C to 125°C, which differs from the 150°C maximum junction temperature of the main part. RoHS3 compliance and MSL 1 rating are maintained. This substitute is suitable for applications where the forward voltage tolerance and operating temperature range are compatible with circuit requirements.

Frequently Asked Questions (FAQ)

Q: Can STPS1L30A directly replace STPS1L30AFN without circuit modification?

A: The STPS1L30A provides electrical equivalence with identical voltage, current, and leakage specifications. The package change from DO-221AC SMAflat to DO-214AC SMA requires PCB footprint adjustment, but no circuit modification is necessary. Both packages are surface mount configurations with compatible electrical performance.

Q: What is the significance of the forward voltage difference between STPS1L30A and SS13L_R1_00001?

A: STPS1L30A specifies 395 mV forward voltage at 1 A, while SS13L_R1_00001 specifies 420 mV at 1 A. This 25 mV difference affects power dissipation and voltage drop across the diode. Circuit designs with tight voltage margin requirements should account for this specification difference when selecting between these substitutes.

Q: Are both substitute parts RoHS compliant?

A: Both STPS1L30A and SS13L_R1_00001 are ROHS3 compliant and REACH unaffected, matching the compliance status of the main part STPS1L30AFN.

Q: What is the difference between DO-221AC and DO-214AC packages?

A: Both are surface mount packages for Schottky diodes. DO-221AC is designated as SMAflat with flat leads, while DO-214AC is designated as SMA with standard leads. Both are compatible with automated surface mount assembly processes. PCB footprint dimensions differ, requiring layout adjustment during design transition.

Q: Why is STPS1L30A recommended over SS13L_R1_00001?

A: STPS1L30A is manufactured by STMicroelectronics, the original equipment manufacturer of the obsolete STPS1L30AFN, providing design continuity and supply chain consistency. Electrical specifications are identical to the main part. SS13L_R1_00001 is a viable alternative when STPS1L30A is unavailable, with the noted forward voltage and operating temperature differences.

Q: Is the operating temperature difference between STPS1L30A and SS13L_R1_00001 significant?

A: STPS1L30A specifies 150°C maximum junction temperature, while SS13L_R1_00001 specifies -55°C to 125°C operating range. Applications requiring operation at junction temperatures above 125°C must use STPS1L30A. For applications within the -55°C to 125°C range, both parts are suitable.

Q: What is the moisture sensitivity level (MSL) rating?

A: Both substitute parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. Components can be stored and handled without special moisture control measures, matching the main part specification.