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Taiwan Semiconductor Corporation S15DLWH
- Part No.:
- S15DLWH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123W
- Datasheet:
-
S15DLWH.pdf
- Description:
- DIODE GEN PURP 200V 1.5A SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:19,264
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Product details
Overview
S15DLWH from Taiwan Semiconductor is a 1.5A, 200V standard surface-mount silicon rectifier diode in SOD-123W package, AEC-Q101 qualified, with 50A peak surge current rating and 1.05V max forward voltage at 1.5A/25°C, used in automotive DC-DC converters and snubber circuits.
For engineers reviewing the S15DLWH datasheet, S15DLWH pinout, S15DLWH application, or S15DLWH equivalent, key selection criteria include VRRM = 200V, IF = 1.5A, IFSM = 50A, TJ(max) = 175°C, and SOD-123W thermal performance (RθJA = 85°C/W).
Technical Context
The S15DLWH is a single-die, standard recovery rectifier optimized for high-efficiency power conversion in space-constrained automotive and industrial environments. Its 200V repetitive peak reverse voltage and 1.05V max VF at rated current support low conduction loss in 12V–48V system rails.
Thermal design is enabled by RθJL = 29°C/W and RθJC = 31°C/W, validated on 5mm × 5mm Cu pad PCBs. The device meets JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum reverse blocking voltage before breakdown; defines usable input voltage range in DC-DC stages. |
| IF | 1.5 A continuous - Rated average forward current under defined thermal conditions; sets output power capability. |
| IFSM | 50 A (8.3 ms half-sine) - Peak non-repetitive surge current handling; enables robustness against load dump transients. |
| VF (max) | 1.05 V @ 1.5A, 25°C - Maximum forward voltage drop; directly determines conduction loss and thermal rise at full load. |
| TJ(max) | +175 °C - Maximum junction temperature; allows operation in under-hood automotive environments without derating. |
| RθJA | 85 °C/W - Junction-to-ambient thermal resistance on standard test board; informs heatsinking and layout requirements. |
Pinout & Package
Package: SOD-123W - Surface-mount plastic case with matte tin-plated leads, UL 94V-0 rated molding compound, cathode band polarity marking, and 0.019g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of circuit; requires PCB trace capable of carrying 1.5A continuous. |
| Cathode | Forward current exit point / reverse voltage reference | Marked by band; ties to higher-potential node; reverse leakage <1 µA at 25°C ensures minimal standby loss. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan. |
| Moisture sensitivity level 1 | Zero bake requirement prior to reflow; supports direct placement into standard SMT lines without dry pack handling. |
| High surge current capability (50A) | Withstands automotive load dump and inductive switching events without degradation or failure. |
| Low VF (1.05V max) | Reduces conduction loss by ~15% vs. legacy 1N400x equivalents at 1.5A, lowering thermal load in compact layouts. |
Applications
| Automotive DC-DC Converters | Car Lighting Systems |
|---|---|
Use Scenario: Step-down conversion from 12V/24V battery to 5V/3.3V for LED driver ICs and microcontrollers. IC Role / Device Role / Timing Role: Output rectifier in synchronous or asynchronous buck topology. Use Value: 1.05V max VF minimizes power loss at 1.5A load; 175°C TJ(max) ensures stable operation near hot engine compartments. | Use Scenario: Reverse polarity protection and transient suppression in LED headlamp modules. IC Role / Device Role / Timing Role: Snubber diode across relay coils or MOSFET drains in lighting control circuits. Use Value: 50A IFSM clamps inductive kickback safely; AEC-Q101 qualification guarantees long-term reliability in vibration-prone environments. |
| Snubber Circuits | Industrial Power Supplies |
Use Scenario: RC snubber network across switching FETs in flyback or forward converters. IC Role / Device Role / Timing Role: Fast-recovery path for stored energy during turn-off transitions. Use Value: Low CJ (10 pF) reduces capacitive loading on gate drivers; 200V VRRM matches typical 12–24V system clamp voltages. | Use Scenario: Secondary-side rectification in isolated AC-DC adapters for factory automation equipment. IC Role / Device Role / Timing Role: General-purpose rectifier in low-power auxiliary supplies. Use Value: SOD-123W footprint enables high-density PCB layout; RoHS/halogen-free compliance meets industrial environmental mandates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar standard rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MUR120SFT1G | 200V VRRM, 1A IF, TO-277 package, faster recovery (~50ns), higher VF (1.15V max) | Higher-speed switching but lower current rating; unsuitable for 1.5A continuous loads | Select when fast recovery is prioritized over current capacity and board space permits larger TO-277 footprint |
| Vishay VS-1N4933TR | 200V VRRM, 1.5A IF, DO-41 through-hole, slower recovery (~2µs), VF = 1.2V max | Through-hole mounting only; not AEC-Q101 qualified; higher conduction loss | Acceptable for non-automotive, cost-sensitive through-hole designs where surface-mount is not required |
Compared with MUR120SFT1G and VS-1N4933TR, the S15DLWH uniquely combines AEC-Q101 qualification, 1.5A current rating, SOD-123W compactness, and 1.05V low VF-making it optimal for space- and reliability-critical automotive surface-mount rectification.
Availability
S15DLWH is available at Aetrix Electronics and suitable for automotive DC-DC converters, car lighting systems, and snubber circuits requiring stable component supply, AEC-Q101 compliance, and consistent SOD-123W packaging.
Supply support for S15DLWH 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, analog ICs, and ESD protection solutions.
The S15DLWH belongs to TSC's AEC-Q101-qualified SOD-123W rectifier family, designed specifically for high-reliability, surface-mount automotive power conversion and transient suppression.
FAQ
What is the maximum junction temperature rating for the S15DLWH?
The S15DLWH has a maximum junction temperature (TJ(max)) of +175°C, enabling reliable operation in under-hood automotive environments and high-temperature industrial enclosures. This rating is validated per JEDEC standards and supports full 1.5A current delivery up to ambient temperatures of +125°C when mounted on a 5mm × 5mm copper pad.
Is the S15DLWH suitable for automotive applications?
Yes, the S15DLWH is AEC-Q101 qualified and explicitly intended for automotive use, including DC-DC converters and car lighting. It passes stress tests for temperature cycling, high-temperature reverse bias (HTRB), and mechanical shock-ensuring long-term reliability in vibration-prone, thermally aggressive vehicle subsystems.
What is the forward voltage specification for the S15DLWH at 1.5A and 25°C?
The S15DLWH has a maximum forward voltage (VF) of 1.10 V at 1.5A and 25°C, with a typical value of 0.98 V. This low VF reduces conduction losses and thermal generation compared to legacy rectifiers, supporting higher efficiency in compact power designs.
Does the S15DLWH have moisture sensitivity level (MSL) restrictions for reflow soldering?
No-the S15DLWH is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and requires no baking prior to reflow. This simplifies SMT assembly and eliminates moisture-related popcorning risks during standard lead-free reflow profiles.
What package type does the S15DLWH use, and what are its key mechanical features?
The S15DLWH uses the SOD-123W package: a compact surface-mount outline with matte tin-plated leads, UL 94V-0 flammability-rated epoxy, cathode band polarity marking, and 0.019g mass. Its dimensions and thermal metrics (RθJA = 85°C/W) are validated on 5mm × 5mm Cu pads per JEDEC standards.
S15DLWH 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):
- 200 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 @ 200 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
S15DLWH FAQ
1.How can I place an order for S15DLWH through Aetrix?
Please submit a Request for Quotation (RFQ) for S15DLWH 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 S15DLWH reliable?
The price and inventory of S15DLWH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S15DLWH is usually 5 days.
3.What payment methods are accepted for S15DLWH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S15DLWH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S15DLWH?
S15DLWH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S15DLWH 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 S15DLWH?
For technical support, including S15DLWH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S15DLWH requirements.
6.How does Aetrix verify that S15DLWH is sourced from the original manufacturer or authorized distributors?
All S15DLWH 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 S15DLWH meets industry standards.
7.What is the process for return or replacement of S15DLWH?
All S15DLWH units undergo pre-shipment inspection (PSI). If there is an issue with S15DLWH, 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 S15DLWH part is unused and in its original packaging.
Return procedure for S15DLWH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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