SS14L RTG Equivalent & Substitute Parts

Part Overview

The SS14L RTG is a Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, designed for surface mount applications in the Sub SMA package format. This component operates at 40 V DC reverse voltage with 1 A average rectified current capability and features fast recovery characteristics suitable for high-frequency switching applications.

The SS14L RTG is classified as an Active product with full RoHS3 compliance and unlimited moisture sensitivity rating. Alternative equivalent parts are necessary to address supply chain flexibility, inventory availability, and specific application requirements such as automotive qualification or extended temperature range operation.

Substiute Parts

SS14L RTG

Taiwan Semiconductor CorporationIn Stock: 847SS14L RTG 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 SS14L RTG is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Criteria:

• Voltage - DC Reverse (Vr) Maximum: 40 V
• Current - Average Rectified (Io): 1 A
• Package / Case: DO-219AB (Sub SMA form factor)
• Mounting Type: Surface Mount
• Technology: Schottky rectifier diode
• Fast Recovery Speed: ≤ 500 ns at > 200 mA

Acceptable Variation Parameters:

• Voltage - Forward (Vf) Maximum: Substitute parts may operate at equal or lower forward voltage drop
• Current - Reverse Leakage @ Vr: Substitute parts may exhibit equal or lower reverse leakage current
• Operating Temperature - Junction: Substitute parts may support equal or extended temperature range
• Capacitance @ Vr, F: When specified, substitute parts must meet or exceed performance

Substitute parts identified in this reference maintain full compatibility with the SS14L RTG across all mandatory criteria. Variations in optional parameters provide design flexibility for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

SS14L (Parametric Equivalent): This part is a direct parametric equivalent to the SS14L RTG, maintaining identical electrical specifications across all critical parameters. However, the SS14L carries a "Not For New Designs" product status designation. Selection of this part is appropriate only for replacement, repair, or continuation of existing production where supply continuity is required. For new design implementations, alternative parts with Active status are preferred.

SS1FL4HM3/H (Similar - Vishay): The SS1FL4HM3/H from Vishay General Semiconductor - Diodes Division is classified as an Active product and meets all mandatory substitution criteria. This part demonstrates superior performance characteristics including lower forward voltage drop (500 mV versus 550 mV at 1 A) and reduced reverse leakage current (200 µA versus 400 µA at 40 V). The SS1FL4HM3/H features extended operating temperature range (-55°C to 150°C versus -55°C to 125°C) and carries automotive-grade qualification under AEC-Q101 standard. This part is suitable for new designs requiring enhanced reliability and automotive application support.

Both substitute parts maintain full RoHS3 compliance, unlimited moisture sensitivity rating (MSL 1), and identical package form factor (DO-219AB Sub SMA). Selection between these alternatives depends on product lifecycle requirements and application-specific environmental or reliability specifications.

Frequently Asked Questions (FAQ)

Q: Can the SS14L RTG be directly replaced with the SS14L?

A: The SS14L is a parametric equivalent with identical electrical specifications. However, the SS14L carries "Not For New Designs" status. Direct replacement is functionally compatible but not recommended for new product development. The SS1FL4HM3/H is the preferred alternative for new designs.

Q: What are the key differences between SS14L RTG and SS1FL4HM3/H?

A: Both parts meet the mandatory substitution criteria of 40 V reverse voltage, 1 A average rectified current, and DO-219AB package format. The SS1FL4HM3/H offers lower forward voltage drop (500 mV versus 550 mV), lower reverse leakage current (200 µA versus 400 µA), extended temperature range (-55°C to 150°C versus -55°C to 125°C), and automotive AEC-Q101 qualification. The SS1FL4HM3/H is manufactured by Vishay, while the SS14L RTG is manufactured by Taiwan Semiconductor Corporation.

Q: Are all substitute parts compatible with the same PCB layout?

A: Yes. All substitute parts specified in this reference use the identical DO-219AB (Sub SMA) package format and surface mount mounting type. PCB footprints, solder pad dimensions, and assembly processes remain unchanged across all listed equivalents.

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

A: This designation indicates that while the part remains in active inventory and is suitable for replacement or repair applications, manufacturers recommend using alternative parts for new product development. This status typically reflects manufacturer lifecycle management decisions and does not indicate functional deficiency.

Q: Does the SS1FL4HM3/H automotive qualification affect its use in non-automotive applications?

A: No. Automotive qualification (AEC-Q101) represents an additional quality and reliability standard that exceeds standard industrial requirements. Parts meeting automotive standards are fully compatible with industrial and consumer applications and provide enhanced reliability margins.

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

A: All parts operate within the same current and voltage specifications. The SS1FL4HM3/H supports extended junction temperature operation (150°C maximum versus 125°C), providing additional thermal margin in high-temperature environments. Thermal management requirements depend on application-specific power dissipation and ambient conditions rather than part selection alone.

Q: What compliance certifications apply to all substitute parts?

A: All parts listed in this reference maintain RoHS3 compliance, unlimited moisture sensitivity rating (MSL 1), REACH unaffected status, and EAR99 export classification. These certifications ensure regulatory compliance across industrial, commercial, and consumer applications.