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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Taiwan Semiconductor Corporation S15GLW RVG

Name: S15GLW RVG
Brand: Taiwan Semiconductor Corporation
SKU: S15GLW RVG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S15GLW RVG

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: SOD-123W

Datasheet:: S15GLW RVG.pdf

Description:: DIODE GEN PURP 400V 1.5A SOD123W

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Product details

Overview

S15GLW from Taiwan Semiconductor is a 1.5A, 400V repetitive peak reverse voltage (V_RRM) standard surface-mount silicon rectifier diode in SOD-123W package, with 50A surge capability (I_FSM), 1.10V max forward voltage at 1.5A/25°C, and rated for -55°C to +175°C junction operation - used in DC-DC converter output stages and switching-mode power supply freewheeling paths.

For engineers reviewing the S15GLW datasheet, S15GLW pinout, S15GLW application, or S15GLW equivalent, key selection criteria include verified V_RRM = 400V, thermal resistance R_θJA = 85°C/W on 5mm×5mm Cu pad, moisture sensitivity level 1, RoHS/halogen-free compliance, and SOD-123W footprint compatibility with automated placement.

Technical Context

The S15GLW is a single-die, planar passivated silicon PN junction rectifier optimized for high-efficiency, medium-voltage switching power conversion. Its 400V V_RRM rating targets mid-range SMPS outputs, while its 29°C/W junction-to-lead thermal resistance supports reliable conduction under pulsed loads up to 50A I_FSM.

Electrical behavior is characterized by low forward voltage drop (0.98V typ. @ 1.5A/25°C) and minimal leakage (<1µA @ 25°C, <100µA @ 125°C), enabling stable operation across industrial temperature ranges without derating below 1.5A average current until ambient exceeds ~80°C per derating curve.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - Maximum repetitive reverse voltage the device blocks reliably in circuit; defines usable input/output voltage range in flyback/freewheeling topologies.
I_F	1.5 A - Continuous average forward current rating at T_A = 25°C on standard PCB; determines minimum trace width and heatsinking requirements.
I_FSM	50 A - Peak non-repetitive surge current (8.3ms half-sine); enables robustness against startup inrush and transient overloads.
V_F max	1.10 V @ 1.5A/25°C - Maximum forward voltage drop; directly impacts conduction loss (P_cond ≈ I_F × V_F) and thermal design margin.
T_J max	+175°C - Maximum junction temperature; allows operation in high-ambient environments (e.g., enclosed industrial power supplies) with appropriate thermal layout.
R_θJA	85°C/W - Junction-to-ambient thermal resistance on 5mm×5mm Cu pad; used to calculate temperature rise ΔT = P_diss × R_θJA for layout validation.

Pinout & Package

Package: SOD-123W - Surface-mount plastic case with matte tin-plated leads, UL 94V-0 molding compound, cathode band polarity marking, and JESD201 Class 2 whisker resistance. Weight: 0.019g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential node (e.g., switch node in buck converter); requires adequate copper area for thermal dissipation.
Cathode	Forward current exit / reverse voltage blocking terminal	Marked by visible band; connects to output rail or ground return path; reverse voltage applied here must not exceed 400V.

Key Features

Feature	Design Value
Moisture Sensitivity Level 1	Enables unlimited floor life before reflow; eliminates baking requirement and simplifies SMT line handling.
Low V_F (0.98V typ. @ 1.5A/25°C)	Reduces conduction losses by ~15% vs. comparable 1A/400V diodes, improving efficiency in 12–48V output converters.
Junction-to-lead R_θJL = 29°C/W	Supports direct thermal coupling to PCB copper pour or metal-core board, enabling higher sustained current without external heatsink.
RoHS & halogen-free compliance	Fulfills IEC 61249-2-21 and EU RoHS Directive 2011/65/EU requirements for environmentally constrained industrial and telecom applications.

Applications

DC-DC Converter Output Rectification	Switching Mode Inverter Freewheeling
Use Scenario: Secondary-side rectification in isolated 24V/1.5A flyback or forward converter powering industrial PLC I/O modules. IC Role / Device Role / Timing Role: Unidirectional current steering and AC-to-DC conversion; conducts during transformer secondary positive half-cycle, blocks reverse recovery current. Use Value: 400V V_RRM safely accommodates reflected voltage spikes; 1.10V V_F max limits power loss to ≤1.65W at full load, easing thermal management.	Use Scenario: Freewheeling path across inductive loads (e.g., motor windings or solenoids) in 48V automotive HVAC inverters. IC Role / Device Role / Timing Role: Provides low-loss recirculation path during MOSFET off-time; clamps inductive kickback to safe voltage levels. Use Value: 50A I_FSM withstands repeated turn-off surges; 175°C T_J max ensures reliability under engine-bay thermal stress.
AC-DC Adapter Secondary Rectification	Industrial Power Supply Hold-up Diode
Use Scenario: Output rectification in universal-input 12V/1.5A wall adapters for networking equipment. IC Role / Device Role / Timing Role: Converts transformer secondary AC to regulated DC; operates continuously at 1.5A with minimal voltage drop. Use Value: SOD-123W footprint enables compact board layout; 0.94V V_F typ. at 1A improves light-load efficiency critical for Energy Star compliance.	Use Scenario: OR-ing diode in redundant 24V industrial PSU backup rails to prevent backfeed during main supply failure. IC Role / Device Role / Timing Role: Blocks reverse current flow from backup source into failed primary rail; conducts only when backup voltage exceeds primary. Use Value: Low IR (<1µA @ 25°C) minimizes standby power loss; 400V rating provides margin against bus transients during switchover.

DC-DC Converter Output Rectification

Switching Mode Inverter Freewheeling

Use Scenario: Secondary-side rectification in isolated 24V/1.5A flyback or forward converter powering industrial PLC I/O modules.

IC Role / Device Role / Timing Role: Unidirectional current steering and AC-to-DC conversion; conducts during transformer secondary positive half-cycle, blocks reverse recovery current.

Use Value: 400V V_RRM safely accommodates reflected voltage spikes; 1.10V V_F max limits power loss to ≤1.65W at full load, easing thermal management.

Use Scenario: Freewheeling path across inductive loads (e.g., motor windings or solenoids) in 48V automotive HVAC inverters.

IC Role / Device Role / Timing Role: Provides low-loss recirculation path during MOSFET off-time; clamps inductive kickback to safe voltage levels.

Use Value: 50A I_FSM withstands repeated turn-off surges; 175°C T_J max ensures reliability under engine-bay thermal stress.

AC-DC Adapter Secondary Rectification

Industrial Power Supply Hold-up Diode

Use Scenario: Output rectification in universal-input 12V/1.5A wall adapters for networking equipment.

IC Role / Device Role / Timing Role: Converts transformer secondary AC to regulated DC; operates continuously at 1.5A with minimal voltage drop.

Use Value: SOD-123W footprint enables compact board layout; 0.94V V_F typ. at 1A improves light-load efficiency critical for Energy Star compliance.

Use Scenario: OR-ing diode in redundant 24V industrial PSU backup rails to prevent backfeed during main supply failure.

IC Role / Device Role / Timing Role: Blocks reverse current flow from backup source into failed primary rail; conducts only when backup voltage exceeds primary.

Use Value: Low IR (<1µA @ 25°C) minimizes standby power loss; 400V rating provides margin against bus transients during switchover.

Equivalent & Alternatives

The following parts are listed as comparable options for similar standard rectifier diode applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor MUR150	V_RRM = 50V, I_F = 1.5A, faster recovery (t_rr ≈ 75ns), TO-220AC package	Designed for low-voltage, high-frequency switching; unsuitable for 400V blocking; requires through-hole mounting and heatsink.	Select only if system operates ≤50V reverse and needs faster recovery; not a drop-in replacement for S15GLW.
Vishay VS-1N4937-M3/54	V_RRM = 400V, I_F = 1.0A, DO-41 package, V_F = 1.2V max @ 1.0A	Lower current rating and axial-leaded form factor limit use to low-power linear supplies or legacy designs; no SMT automation support.	Consider only for prototyping or repair where SOD-123W footprint is unavailable; derate current to 1.0A maximum.

Compared with MUR150 and VS-1N4937-M3/54, the S15GLW uniquely combines 400V blocking, 1.5A continuous rating, SMT-compatible SOD-123W packaging, and moisture-level-1 handling - making it optimal for space-constrained, high-volume industrial SMPS where thermal performance and assembly efficiency are critical.

Availability

S15GLW is available at Aetrix Electronics and suitable for DC-DC converters, switching mode inverters, and industrial power supplies requiring stable component supply, long-term manufacturability, and RoHS-compliant sourcing.

Supply support for S15GLW includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, including rectifiers, TVS diodes, and MOSFETs, with global distribution and AEC-Q200 qualified product lines.

The S15GLW belongs to TSC's S15xLW family of standard rectifiers engineered for cost-sensitive, high-reliability industrial and consumer power conversion - emphasizing thermal robustness, automated assembly readiness, and consistent parametric performance across voltage grades.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for the S15GLW?

The S15GLW has a maximum repetitive peak reverse voltage (V_RRM) of 400 V, as confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version C2103). This rating defines the highest reverse voltage the diode can block repeatedly without breakdown under normal operating conditions and is specific to the S15GLW variant within the S15xLW series.

Does the S15GLW meet RoHS and halogen-free requirements?

Yes, the S15GLW is RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet. These compliance certifications are verified for the S15GLW production lot and apply to all units shipped under this part number.

What is the forward voltage (V_F) of the S15GLW at 1.5A and 25°C?

The forward voltage (V_F) of the S15GLW is specified as a maximum of 1.10 V at 1.5A and 25°C, with a typical value of 0.98 V under the same conditions. This parameter is measured per JEDEC test conditions and appears in the ELECTRICAL SPECIFICATIONS table for the S15GLW in the official datasheet.

Is the S15GLW suitable for automated SMT placement?

Yes, the S15GLW is explicitly designed for automated placement, as noted in the FEATURES section of its datasheet. Its SOD-123W package, matte tin-plated leads, and moisture sensitivity level 1 qualification ensure compatibility with standard reflow processes and eliminate pre-baking requirements - critical for high-yield SMT line integration of the S15GLW.

What is the junction-to-ambient thermal resistance (R_θJA) of the S15GLW?

The junction-to-ambient thermal resistance (R_θJA) of the S15GLW is 85°C/W when mounted on a standard 5mm × 5mm copper pad test board, as documented in the THERMAL PERFORMANCE section of the Taiwan Semiconductor datasheet. This value is measured under defined JEDEC conditions and applies directly to the S15GLW in its SOD-123W package.

S15GLW RVG Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: SOD-123W

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 400 V

Current - Average Rectified (Io):: 1.5A

Voltage - Forward (Vf) (Max) @ If:: 1.1 V @ 1.5 A

Speed:: Standard Recovery >500ns, > 200mA (Io)

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 1 µA @ 400 V

Capacitance @ Vr, F:: 10pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-123W

Operating Temperature - Junction:: -55°C ~ 175°C

S15GLW RVG FAQ

1.How can I place an order for S15GLW RVG through Aetrix?

Please submit a Request for Quotation (RFQ) for S15GLW RVG on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for S15GLW RVG reliable?

The price and inventory of S15GLW RVG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S15GLW RVG is usually 5 days.

3.What payment methods are accepted for S15GLW RVG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S15GLW RVG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S15GLW RVG?

S15GLW RVG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S15GLW RVG order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for S15GLW RVG?

For technical support, including S15GLW RVG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S15GLW RVG requirements.

6.How does Aetrix verify that S15GLW RVG is sourced from the original manufacturer or authorized distributors?

All S15GLW RVG products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that S15GLW RVG meets industry standards.

7.What is the process for return or replacement of S15GLW RVG?

All S15GLW RVG units undergo pre-shipment inspection (PSI). If there is an issue with S15GLW RVG, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The S15GLW RVG part is unused and in its original packaging.

Return procedure for S15GLW RVG:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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