SS14LHRUG Equivalent & Substitute Parts

Part Overview

The SS14LHRUG is a Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 40 V DC reverse voltage and 1 A average rectified current in a Sub SMA surface mount package. This component is classified as Active product status and carries AEC-Q101 automotive qualification with ROHS3 compliance.

Equivalent and substitute parts are identified when alternative manufacturers or packaging configurations provide identical or compatible electrical and mechanical parameters. The SS14LHRUG is available in Tape & Reel packaging; alternative configurations and manufacturers may be required based on inventory availability, supply chain considerations, or specific application requirements.

Substiute Parts

SS14LHRUG

Taiwan Semiconductor CorporationIn Stock: 1238SS14LHRUG Datasheet

Current PartRFQ

SS14L

Taiwan Semiconductor CorporationIn Stock: 23363SS14L Datasheet

Parametric EquivalentRFQ

SS1FL4HM3/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 33227SS1FL4HM3/H Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SS14LHRUG is determined by equivalence in the following critical parameters:

Electrical Parameters (Must Match):

• Voltage - DC Reverse (Vr) (Max): 40 V
• Current - Average Rectified (Io): 1 A
• Technology: Schottky
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Mechanical Parameters (Must Match):

• Package / Case: DO-219AB
• Mounting Type: Surface Mount
• Supplier Device Package: Sub SMA or DO-219AB (SMF)

Compliance Parameters (Must Match for Automotive Applications):

• Grade: Automotive
• Qualification: AEC-Q101
• RoHS Status: ROHS3 Compliant

Substitute parts are grouped into two categories:

Parametric Equivalent: SS14L (Taiwan Semiconductor Corporation) — Identical electrical and mechanical specifications with alternative packaging configuration (Cut Tape & Digi-Reel®). Product status is Not For New Designs.

Similar Manufacturer Part: SS1FL4HM3/H (Vishay General Semiconductor - Diodes Division) — Equivalent electrical performance with minor parameter variations and extended operating temperature range. Active product status with AEC-Q101 qualification.

Parameter Comparison

Engineering Selection Recommendations

For Active Product Status Applications:

The SS14LHRUG maintains Active product status and is the primary selection for new designs. This part is in full production with 1140 pieces in stock inventory.

For Equivalent Electrical Performance with Alternative Packaging:

The SS14L provides identical electrical specifications (40 V, 1 A, 550 mV forward voltage, 400 µA reverse leakage) and is manufactured by the same supplier. However, SS14L carries Not For New Designs status and is supplied in Cut Tape & Digi-Reel® packaging rather than Tape & Reel. This part is suitable for legacy system support or high-volume applications where alternative packaging is acceptable. Inventory availability is significantly higher at 23,321 pieces.

For Cross-Manufacturer Substitution with Enhanced Performance:

The SS1FL4HM3/H (Vishay eSMP® series) provides equivalent electrical performance with measurable improvements: forward voltage is reduced to 500 mV (versus 550 mV), reverse leakage is reduced to 200 µA (versus 400 µA), and operating temperature range extends to 150°C (versus 125°C). This part maintains Active product status, AEC-Q101 automotive qualification, and ROHS3 compliance. The SS1FL4HM3/H is supplied in Tape & Reel packaging and has 33,182 pieces in stock inventory. Capacitance specification is provided at 115 pF @ 4 V, 1 MHz.

All three parts are qualified to AEC-Q101 automotive standards, carry ROHS3 compliance, and feature MSL 1 (Unlimited) moisture sensitivity rating. Selection between these parts depends on packaging requirements, inventory constraints, and performance optimization priorities.

Frequently Asked Questions (FAQ)

Q: Can SS14L be used as a direct replacement for SS14LHRUG?

A: SS14L provides identical electrical parameters (40 V reverse voltage, 1 A current, 550 mV forward voltage, 400 µA reverse leakage) and the same DO-219AB package. The primary difference is packaging configuration: SS14L is supplied in Cut Tape & Digi-Reel® format rather than Tape & Reel. SS14L carries Not For New Designs status, making it suitable for legacy applications or high-volume production where packaging format is not a constraint. For new designs, SS14LHRUG (Active status) is the recommended selection.

Q: What are the key differences between SS14LHRUG and SS1FL4HM3/H?

A: Both parts meet the core electrical requirements of 40 V reverse voltage and 1 A current in DO-219AB packages. SS1FL4HM3/H (Vishay) offers three measurable improvements: lower forward voltage (500 mV versus 550 mV), lower reverse leakage (200 µA versus 400 µA), and extended operating temperature range (-55 to 150°C versus -55 to 125°C). Both parts are Active status, AEC-Q101 qualified, and ROHS3 compliant. SS1FL4HM3/H is manufactured by Vishay General Semiconductor - Diodes Division, while SS14LHRUG is manufactured by Taiwan Semiconductor Corporation.

Q: Are all three parts suitable for automotive applications?

A: SS14LHRUG and SS1FL4HM3/H both carry Automotive grade designation and AEC-Q101 qualification. SS14L does not specify automotive grade or AEC-Q101 qualification in the provided parameters. For automotive applications requiring AEC-Q101 compliance, SS14LHRUG or SS1FL4HM3/H are the appropriate selections.

Q: What is the significance of the DO-219AB package designation?

A: DO-219AB is the standardized package designation for Sub SMA (Surface Mount) Schottky diodes. All three substitute parts use this identical package, ensuring mechanical and thermal compatibility on printed circuit boards. The package supports surface mount assembly processes and provides consistent footprint dimensions across manufacturers.

Q: Does packaging configuration (Tape & Reel versus Cut Tape) affect electrical performance?

A: Packaging configuration does not affect electrical performance. Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® are supply and handling formats only. The electrical specifications, thermal characteristics, and reliability of the diode remain identical regardless of packaging configuration. Selection between packaging formats depends on production volume, assembly equipment compatibility, and inventory management requirements.

Q: What is the significance of the eSMP® series designation for SS1FL4HM3/H?

A: eSMP® is Vishay's proprietary series designation for enhanced Surface Mount Package Schottky diodes. This designation indicates the part belongs to Vishay's optimized product line with specified performance characteristics. The eSMP® designation does not affect substitution compatibility; it is a manufacturer-specific product family identifier.

Q: Are there any temperature-related considerations when selecting between these parts?

A: SS14LHRUG and SS14L are rated to 125°C junction temperature, while SS1FL4HM3/H extends to 150°C. For applications operating near or above 125°C, SS1FL4HM3/H provides additional thermal margin. For standard applications within the -55 to 125°C range, all three parts are equivalent in thermal performance.

Q: What does "Not For New Designs" status mean for SS14L?

A: Not For New Designs status indicates that SS14L is in mature production phase and may be subject to discontinuation. While the part remains available and functional, it is not recommended for incorporation into new product designs. SS14L is suitable for sustaining production of existing products or legacy system support. For new designs, Active status parts (SS14LHRUG or SS1FL4HM3/H) are the appropriate selections.