SS14LW RVG Equivalent & Substitute Parts

Part Overview

The SS14LW RVG 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 surface mount SOD-123W package. This component is classified as Active product status and is ROHS3 compliant. Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing, inventory availability, or performance optimization within specified electrical and mechanical parameters.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	40	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	550 mV @ 1 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	100	µA @ 40 V
Operating Temperature - Junction	-55 to 150	°C
Package / Case	SOD-123W	—
Mounting Type	Surface Mount	—
Technology	Schottky	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the SS14LW RVG are classified based on electrical parameter compatibility within the Schottky diode rectifier category. Substitution validity is determined by the following criteria:

Parametric Equivalents share identical electrical specifications across all critical parameters: 40 V reverse voltage rating, 1 A average rectified current, 550 mV forward voltage drop at 1 A, fast recovery speed characteristics, SOD-123W package, surface mount configuration, and operating temperature range of -55°C to 150°C.

Similar Substitutes maintain the same reverse voltage rating (40 V) and package form factor (SOD-123W) but differ in current rating, forward voltage characteristics, or temperature specifications. These parts are suitable for applications where the higher current capability or improved performance characteristics do not conflict with circuit design constraints.

All substitute parts listed comply with ROHS3 and maintain the same moisture sensitivity level (MSL 1 - Unlimited).

Parameter Comparison

Parameter	SS14LW RVG	SS14LWH	PMEG40T30ERX
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Nexperia USA Inc.
Voltage - DC Reverse (Vr) (Max)	40 V	40 V	40 V
Current - Average Rectified (Io)	1 A	1 A	3 A
Voltage - Forward (Vf) (Max) @ If	550 mV @ 1 A	550 mV @ 1 A	460 mV @ 3 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	100 µA @ 40 V	100 µA @ 40 V	28 µA @ 40 V
Operating Temperature - Junction (Max)	150°C	150°C	175°C
Package / Case	SOD-123W	SOD-123W	SOD-123W
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Technology	Schottky	Schottky	Schottky
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Type	Tape & Reel (TR)	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®
Product Status	Active	Active	Active

Engineering Selection Recommendations

SS14LWH is a parametric equivalent to the SS14LW RVG. Both parts are manufactured by Taiwan Semiconductor Corporation and share identical electrical specifications, package configuration, and compliance certifications. Selection between these two parts is determined by inventory availability and packaging format preference. The SS14LWH is available in higher stock quantity (39,824 pcs) compared to the SS14LW RVG (735 pcs).

PMEG40T30ERX is a similar substitute manufactured by Nexperia USA Inc. This part maintains the 40 V reverse voltage rating and SOD-123W package compatibility but is rated for 3 A average rectified current versus 1 A for the primary part. The PMEG40T30ERX exhibits lower reverse leakage current (28 µA versus 100 µA) and a higher maximum junction temperature rating (175°C versus 150°C). This part is suitable for applications requiring higher current capacity or improved thermal performance within the same voltage and package constraints. The PMEG40T30ERX carries AEC-Q101 automotive qualification.

All three parts maintain ROHS3 compliance, MSL 1 rating, and active product status.

Frequently Asked Questions (FAQ)

Q: Can SS14LWH be used as a direct replacement for SS14LW RVG?

A: Yes. The SS14LWH is a parametric equivalent with identical electrical specifications, package type (SOD-123W), mounting configuration (surface mount), and compliance certifications. Direct substitution is valid for all applications where the SS14LW RVG is specified.

Q: What are the key differences between SS14LW RVG and PMEG40T30ERX?

A: The primary differences are current rating (1 A versus 3 A), reverse leakage current (100 µA versus 28 µA), and maximum junction temperature (150°C versus 175°C). Both parts share the same 40 V reverse voltage rating and SOD-123W package. The PMEG40T30ERX is suitable for applications requiring higher current capacity or lower leakage characteristics.

Q: Are all substitute parts available in the same packaging format?

A: No. The SS14LW RVG and SS14LWH are supplied in Tape & Reel (TR) format, while the PMEG40T30ERX is supplied in Cut Tape (CT) and Digi-Reel® format. Packaging format selection depends on assembly process requirements and procurement specifications.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. All three parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating. The PMEG40T30ERX additionally carries AEC-Q101 automotive qualification.

Q: Can PMEG40T30ERX be used in applications designed for 1 A operation?

A: Yes. The PMEG40T30ERX is rated for 3 A operation, which exceeds the 1 A requirement. The part operates within specification at lower current levels. Circuit design must account for the lower forward voltage drop (460 mV at 3 A versus 550 mV at 1 A) and lower reverse leakage current characteristics.

Q: What is the operating temperature range for each part?

A: SS14LW RVG and SS14LWH both operate from -55°C to 150°C junction temperature. PMEG40T30ERX operates to a maximum junction temperature of 175°C, providing 25°C additional thermal margin.

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