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Taiwan Semiconductor Corporation SS26LWH
- Part No.:
- SS26LWH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123W
- Datasheet:
-
SS26LWH.pdf
- Description:
- DIODE SCHOTTKY 60V 2A SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:24,715
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Product details
Overview
SS26LWH from Taiwan Semiconductor is a 2 A, 60 V Schottky barrier surface-mount rectifier in SOD-123W package, featuring low forward voltage (0.70 V at 2 A, 25°C), high surge current capability (50 A), AEC-Q101 qualification, and guard ring for over-voltage protection-used in automotive DC/DC converters and reverse battery protection circuits.
For engineers reviewing the SS26LWH datasheet, SS26LWH pinout, SS26LWH application, or SS26LWH equivalent, key selection criteria include repetitive peak reverse voltage (60 V), junction-to-lead thermal resistance (25 °C/W), moisture sensitivity level (J-STD-020 Level 1), RoHS/halogen-free compliance, and cathode-band polarity marking for reliable automated assembly and thermal management.
Technical Context
The SS26LWH operates as a single-die Schottky rectifier with metal–semiconductor junction enabling fast switching and low conduction loss. Its 60 V VRRM and 50 A IFSM support transient-heavy automotive power rails, while the SOD-123W package provides enhanced thermal dissipation versus standard SOD-123.
AEC-Q101 qualification confirms suitability for under-hood automotive environments; the guard ring structure improves ruggedness against voltage transients, and J-STD-020 Level 1 moisture rating eliminates bake requirements prior to reflow.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 60 V - Maximum repetitive reverse blocking voltage; defines safe operating range in 12 V/24 V automotive systems. |
| VF @ 2 A | 0.70 V max at 25°C - Low conduction loss enables high-efficiency DC/DC conversion and reduced thermal load. |
| IFSM | 50 A - Withstands short-duration surges (8.3 ms half-sine), critical for load dump and cranking events. |
| TJ max | 150°C - Enables operation in high-ambient under-hood locations without derating below full current. |
| RθJL | 25 °C/W - Efficient heat transfer to PCB pad improves reliability in compact layouts with limited airflow. |
| MSL | Level 1 per J-STD-020 - No floor life limitation or pre-bake required before SMT reflow. |
Pinout & Package
Package: SOD-123W - Surface-mount plastic case with gull-wing leads, UL 94V-0 rated molding compound, matte tin-plated terminals, and cathode band polarity indicator. Dimensions: 2.90 × 1.40 × 1.02 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side (e.g., ground or return path) in freewheeling or reverse protection configurations. |
| Cathode | Current exit point during forward conduction; marked by band | Connected to higher-potential rail (e.g., battery input); polarity must be verified for reverse-battery protection integrity. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive temperature cycling, humidity, mechanical shock, and ESD stress-enables use in engine control, lighting, and body electronics. |
| Guard ring structure | Improves edge breakdown immunity, raising effective surge robustness beyond nominal VRRM rating in real-world transients. |
| Low RθJL (25 °C/W) | Enables >1.5× higher continuous current capability on standard 1 oz. copper pads vs. comparable SOD-123 devices. |
| Halogen-free & RoHS | Meets global environmental compliance mandates without compromising thermal or electrical performance. |
Applications
| Automotive DC/DC Converters | Reverse Battery Protection |
|---|---|
Use Scenario: Step-down conversion in 12 V/48 V hybrid architectures with high switching frequency (>300 kHz). IC Role / Device Role / Timing Role: Output rectifier handling continuous 2 A load with minimal voltage drop and thermal rise. Use Value: 0.70 V VF reduces conduction loss by ~25% vs. silicon diodes, improving system efficiency and easing thermal design. | Use Scenario: Preventing damage when battery terminals are accidentally reversed during service or jump-starting. IC Role / Device Role / Timing Role: Series-blocking element placed between battery and main power rail. Use Value: 60 V VRRM safely blocks reverse polarity in 12 V systems; AEC-Q101 ensures long-term reliability under vibration and thermal cycling. |
| Car Lighting Drivers | Freewheeling Diodes in Inverters |
Use Scenario: LED headlamp drivers requiring compact, efficient output rectification with fast recovery. IC Role / Device Role / Timing Role: Freewheeling path for inductive current during PWM dimming cycles. Use Value: Schottky architecture eliminates reverse recovery charge, preventing switching losses and EMI spikes in high-frequency LED drivers. | Use Scenario: Energy recirculation in BLDC motor inverters for electric power steering or HVAC blowers. IC Role / Device Role / Timing Role: Clamp diode across MOSFETs to manage inductive kickback during commutation. Use Value: 50 A IFSM withstands motor startup surges; SOD-123W footprint allows dense layout near gate drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-2EY60-M3/5BT | Same SOD-123W package, 2 A/60 V rating, but VF = 0.72 V max (slightly higher conduction loss). | Identical AEC-Q101 qualification and automotive use cases; slightly higher thermal resistance (RθJA = 90 °C/W vs. 80 °C/W). | Acceptable where marginal VF increase is tolerable; verify layout thermal margin due to higher RθJA. |
| ON Semiconductor SB260T3G | SOD-123 package (not SOD-123W), same 2 A/60 V rating, VF = 0.75 V max, no AEC-Q101 qualification. | Limited to non-automotive industrial or consumer DC/DC; lacks guard ring and automotive reliability validation. | Only for cost-sensitive non-automotive designs; requires re-evaluation of surge robustness and thermal layout. |
Compared with VS-2EY60-M3/5BT and SB260T3G, the SS26LWH delivers lower forward voltage, superior thermal resistance, and full AEC-Q101 validation-making it the preferred choice for automotive-grade 2 A rectification where reliability and efficiency are jointly critical.
Availability
SS26LWH is available at Aetrix Electronics and suitable for automotive DC/DC converters, reverse battery protection circuits, and car lighting drivers requiring stable component supply, AEC-Q101 compliance, and consistent SOD-123W packaging.
Supply support for SS26LWH 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power rectifiers, TVS diodes, and MOSFETs for automotive and industrial markets.
The SS26LWH belongs to TSC's AEC-Q101-qualified SOD-123W Schottky rectifier family, engineered specifically for high-reliability 12 V/24 V automotive power systems demanding low loss, surge resilience, and zero-bake manufacturability.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for SS26LWH?
The SS26LWH has a VRRM of 60 V, confirmed in the Absolute Maximum Ratings table of Taiwan Semiconductor's SS24LWH–SS220LWH datasheet Version B2301. This rating defines the highest reverse voltage the device can block continuously without breakdown and is validated across the full operating temperature range (−55°C to +150°C). The SS26LWH is part of a family where "26" denotes the 60 V grade, distinct from SS24LWH (40 V) and SS210LWH (100 V).
Is SS26LWH qualified for automotive applications?
Yes, the SS26LWH is explicitly AEC-Q101 qualified, as stated in the FEATURES section of the official datasheet. This qualification covers stress tests including temperature cycling, high-temperature operating life, unbiased highly accelerated stress testing (uHAST), and mechanical shock-ensuring reliability in automotive under-hood and cabin environments. Its SOD-123W package, guard ring, and MSL Level 1 rating further support automotive manufacturing and field use.
What is the forward voltage (VF) of SS26LWH at rated current?
The SS26LWH exhibits a maximum forward voltage of 0.70 V at 2 A and 25°C, per the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) to minimize self-heating. At elevated junction temperatures (e.g., 125°C), VF decreases slightly due to the negative temperature coefficient of Schottky diodes, supporting stable performance in thermally demanding applications like automotive DC/DC converters.
Does SS26LWH have a cathode marking, and how is polarity identified?
Yes, the SS26LWH uses a cathode band to indicate polarity, as specified in the MECHANICAL DATA section. The band is located on the package body adjacent to the cathode terminal, consistent with JEDEC DO-219 standards. This marking is essential for correct orientation during automated placement and manual inspection-reversal would cause catastrophic failure in reverse-battery protection or freewheeling configurations. The SOD-123W outline drawing confirms band position relative to lead geometry.
What is the surge current rating (IFSM) of SS26LWH, and under what conditions?
The SS26LWH is rated for a peak forward surge current (IFSM) of 50 A, defined for an 8.3 ms single half-sine wave superimposed on rated DC load, per the Absolute Maximum Ratings table. This rating reflects capability to survive automotive load-dump transients and motor-start surges. Derating applies above 25°C ambient; the Forward Current Derating Curve (Fig.1) shows usable IF drops to ~1.4 A at 125°C ambient with adequate PCB copper area.
SS26LWH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-123W
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 60 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 700 mV @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 200 µA @ 60 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123W
- Operating Temperature - Junction:
- -55°C ~ 150°C
SS26LWH FAQ
1.How can I place an order for SS26LWH through Aetrix?
Please submit a Request for Quotation (RFQ) for SS26LWH 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 SS26LWH reliable?
The price and inventory of SS26LWH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SS26LWH is usually 5 days.
3.What payment methods are accepted for SS26LWH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SS26LWH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SS26LWH?
SS26LWH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SS26LWH 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 SS26LWH?
For technical support, including SS26LWH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SS26LWH requirements.
6.How does Aetrix verify that SS26LWH is sourced from the original manufacturer or authorized distributors?
All SS26LWH 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 SS26LWH meets industry standards.
7.What is the process for return or replacement of SS26LWH?
All SS26LWH units undergo pre-shipment inspection (PSI). If there is an issue with SS26LWH, 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 SS26LWH part is unused and in its original packaging.
Return procedure for SS26LWH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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