SS14LHRVG Equivalent & Substitute Parts

Part Overview

The SS14LHRVG 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 electrical performance parameters and mechanical compatibility align within specified tolerances. The SS14LHRVG serves as the reference baseline for this substitution analysis.

Substiute Parts

SS14LHRVG

Taiwan Semiconductor CorporationIn Stock: 710SS14LHRVG 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 eligibility for the SS14LHRVG is determined by matching the following critical parameters:

Electrical Parameters (Must Match or Exceed):

• Voltage - DC Reverse (Vr) (Max): 40 V minimum
• Current - Average Rectified (Io): 1 A minimum
• Technology: Schottky diode
• 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 or Exceed):

• Operating Temperature - Junction: -55°C minimum to 125°C maximum
• RoHS Status: ROHS3 Compliant
• Grade: Automotive (preferred)
• Qualification: AEC-Q101 (preferred)

Substitute parts are classified as either Parametric Equivalent or Similar based on adherence to these criteria. Parametric Equivalent parts maintain identical electrical specifications. Similar parts meet all critical parameters with minor variations in secondary characteristics such as forward voltage or reverse leakage current.

Parameter Comparison

Engineering Selection Recommendations

SS14L (Parametric Equivalent): The SS14L maintains identical electrical specifications to the SS14LHRVG across all critical parameters: 40 V reverse voltage, 1 A average rectified current, 550 mV forward voltage at 1 A, and fast recovery characteristics. Both components use the DO-219AB package with Sub SMA supplier device package designation. However, the SS14L carries a "Not For New Designs" product status, indicating this part is in mature or declining production phase. Selection of SS14L is appropriate for legacy system maintenance, repair, or replacement applications where design continuity is required. New design implementations should prioritize the active-status SS14LHRVG or SS1FL4HM3/H.

SS1FL4HM3/H (Similar): The SS1FL4HM3/H, manufactured by Vishay General Semiconductor - Diodes Division, meets all critical electrical and mechanical substitution criteria. This component is rated for 40 V reverse voltage and 1 A average rectified current with identical fast recovery speed characteristics. The forward voltage is 500 mV at 1 A, representing a 50 mV improvement over the SS14LHRVG baseline. Reverse leakage current is 200 µA at 40 V, half that of the main part, indicating superior reverse blocking performance. The SS1FL4HM3/H operates across -55°C to 150°C junction temperature range, extending the upper thermal limit by 25°C. Both components carry AEC-Q101 automotive qualification and ROHS3 compliance. The SS1FL4HM3/H is classified as Active product status, making it suitable for new design implementations. The eSMP® series designation indicates Vishay's enhanced surface mount package technology. Mechanical compatibility is confirmed through DO-219AB package and surface mount mounting type.

Frequently Asked Questions (FAQ)

Q: Can SS14L be used as a direct replacement for SS14LHRVG in new designs?

A: The SS14L is electrically equivalent to the SS14LHRVG but carries "Not For New Designs" product status. While direct functional substitution is possible, new design implementations should utilize the active-status SS14LHRVG or SS1FL4HM3/H to ensure long-term component availability and supply chain stability.

Q: What is the primary difference between SS14LHRVG and SS1FL4HM3/H?

A: Both components share identical voltage ratings (40 V), current ratings (1 A), and package specifications (DO-219AB). The SS1FL4HM3/H exhibits lower forward voltage (500 mV versus 550 mV at 1 A) and lower reverse leakage current (200 µA versus 400 µA at 40 V). The SS1FL4HM3/H also supports a higher maximum junction temperature (150°C versus 125°C). Both are AEC-Q101 qualified automotive-grade components.

Q: Are all three parts compatible with the same PCB footprint?

A: Yes. All three parts use the DO-219AB package with surface mount mounting type. PCB footprint compatibility is confirmed. However, verify that the specific supplier device package designation (Sub SMA versus DO-219AB SMF) aligns with your PCB design specifications, as minor dimensional variations may exist between package variants.

Q: Which substitute part is recommended for automotive applications?

A: Both SS14L and SS1FL4HM3/H carry automotive-grade classification and AEC-Q101 qualification. The SS1FL4HM3/H is preferred for new automotive designs due to its Active product status, superior electrical characteristics (lower forward voltage and reverse leakage), and extended operating temperature range. The SS14L is suitable for automotive maintenance and repair applications requiring design continuity.

Q: What is the significance of the "Not For New Designs" status on SS14L?

A: "Not For New Designs" indicates that the SS14L is in mature production phase with declining availability. Manufacturers typically apply this designation to parts approaching end-of-life. While the part remains functionally available, new circuit designs should incorporate active-status alternatives to avoid future supply constraints and obsolescence risk.

Q: Do all three parts meet RoHS and automotive compliance requirements?

A: Yes. All three parts are ROHS3 compliant and carry AEC-Q101 automotive qualification. All are suitable for applications requiring automotive-grade reliability and environmental compliance.