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Taiwan Semiconductor Corporation SS26L
- Part No.:
- SS26L
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
SS26L.pdf
- Description:
- 2A, 60V, SCHOTTKY RECTIFIER
- Quantity:
- Payment:
- Shipping:
Inventory:2,934
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Product details
Overview
SS26L from Taiwan Semiconductor is a 2 A, 60 V Schottky barrier surface-mount rectifier in Sub SMA package, featuring 0.70 V forward voltage at 2 A and 10 mA reverse current at 100°C, used in DC-DC converters and AC-DC adapters for high-efficiency power conversion.
For engineers reviewing the SS26L datasheet, SS26L pinout, SS26L application, or SS26L equivalent, key selection criteria include its 60 V repetitive peak reverse voltage, 50 A surge rating, 17 °C/W junction-to-lead thermal resistance, and Sub SMA package compatibility with automated SMT assembly.
Technical Context
The SS26L employs a single-die Schottky structure optimized for low forward voltage drop and fast switching, enabling high-frequency operation without minority-carrier recovery delay. Its guard ring design enhances overvoltage ruggedness while maintaining stable performance up to 150°C junction temperature.
Rated for 2 A average forward current with 50 A non-repetitive surge capability, the device operates with 10,000 V/μs critical dv/dt rating and meets JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 60 V - maximum repetitive reverse blocking voltage, defines usable input range in 48 V bus or 36 V adapter designs |
| IF | 2 A - continuous forward current rating, supports compact 10–20 W SMPS output stages |
| VF @ 2 A | 0.70 V - low conduction loss enabling >92% efficiency in 5–12 V output converters |
| IR @ 60 V | 400 µA @ 25°C - leakage level compatible with standby power budgets under 100 mW |
| IFSM | 50 A - surge withstand for cold-start and line-transient events in unregulated inputs |
| RθJL | 17 °C/W - enables direct PCB copper pour heat sinking without external heatsink in space-constrained layouts |
| TJ max | 150 °C - extended thermal operating limit suitable for sealed industrial enclosures |
Pinout & Package
Package: Sub SMA - surface-mount plastic package with matte tin-plated leads, UL 94V-0 molding compound, cathode band polarity marking, and 0.019 g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node or ground return) in buck or flyback secondary |
| Cathode | Forward current exit / reverse blocking terminal | Connected to output rail; cathode band identifies this terminal for correct PCB orientation |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Improves transient overvoltage immunity without increasing VF or reducing IR spec |
| Low VF at high IF | 0.70 V @ 2 A minimizes I²R losses in thermally constrained 2-layer PCBs |
| J-STD-020 Level 1 MSL | Enables unlimited floor life and reflow without baking, reducing manufacturing overhead |
| Halogen-free construction | Complies with IEC 61249-2-21, supporting RoHS and green procurement mandates |
| High dv/dt rating | 10,000 V/μs tolerance prevents false turn-on in high-edge-rate synchronous rectifier circuits |
Applications
| USB-C PD Adapters | Industrial 24 V DC-DC Modules |
|---|---|
Use Scenario: Secondary-side rectification in 45–65 W USB-C power adapters operating at 200–500 kHz switching frequency. IC Role / Device Role / Timing Role: Schottky rectifier replacing slower diodes to reduce conduction loss and improve light-load efficiency. Use Value: 0.70 V VF enables ≥94% efficiency at 5 V/3 A output while maintaining thermal rise below 45°C on 1 oz copper. | Use Scenario: Output rectification in isolated 24 V input, 5/12 V dual-output DC-DC converters for PLC I/O modules. IC Role / Device Role / Timing Role: Primary output rectifier handling 2 A continuous load with intermittent 4 A surges during solenoid actuation. Use Value: 50 A IFSM rating ensures reliability during 100 ms motor startup transients without derating. |
| Telecom Power Supplies | LED Driver Secondary Rectification |
Use Scenario: +48 V telecom rectifier stage feeding intermediate bus converters in distributed power architecture. IC Role / Device Role / Timing Role: High-reliability Schottky rectifier operating continuously at 75°C ambient with forced air cooling. Use Value: 150°C TJ max and 17 °C/W RθJL allow operation at full 2 A load without thermal throttling in 1U chassis. | Use Scenario: Constant-current LED driver output stage delivering 2 A to high-brightness COB arrays. IC Role / Device Role / Timing Role: Low-noise rectifier minimizing EMI generation near sensitive analog dimming circuitry. Use Value: Fast recovery and absence of reverse recovery charge eliminate switching spikes that interfere with PWM dimming fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS26HE3/5BT | Same 60 V VRRM and 2 A IF, but TO-277 package (3-pin, anode-cathode-anode), higher RθJA (100 °C/W) | Requires different pad layout and offers lower thermal performance in same PCB area | Prefer SS26L for Sub SMA footprint and better thermal coupling to board copper |
| SB260-E3/54 | 60 V VRRM, 2 A IF, VF = 0.72 V @ 2 A, but rated only to 125°C TJ max and lacks guard ring | Lower surge robustness and reduced high-temp reliability in sealed enclosures | SS26L preferred where 150°C operation or line surge immunity is required |
Compared with SS26HE3/5BT and SB260-E3/54, the SS26L delivers superior thermal resistance (17 °C/W vs. ≥100 °C/W), guaranteed 150°C operation, and integrated overvoltage protection-making it optimal for space- and reliability-critical 2 A rectification in industrial and telecom power supplies.
Availability
SS26L is available at Aetrix Electronics and suitable for USB-C PD adapters, industrial 24 V DC-DC modules, and telecom power supplies requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for SS26L 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 Taiwanese manufacturer specializing in discrete power semiconductors, including Schottky rectifiers, MOSFETs, and TVS devices.
The SS22L–SS215L series was designed specifically for high-efficiency, surface-mount AC-DC and DC-DC power conversion in cost-sensitive consumer and industrial applications.
FAQ
What is the maximum junction temperature rating for the SS26L?
The SS26L has a maximum junction temperature (TJ max) rating of 150°C, verified per TSC's O2103 datasheet revision. This allows sustained 2 A operation in ambient temperatures up to 105°C when mounted on 1 oz copper with 1 cm² thermal pad, making SS26L suitable for enclosed industrial power supplies where airflow is limited.
Does the SS26L have a guard ring structure, and what benefit does it provide?
Yes, the SS26L incorporates a guard ring for overvoltage protection, explicitly stated in the FEATURES section of the official datasheet. This structure improves ruggedness against transient voltage spikes without degrading forward voltage or leakage current, enhancing reliability in SMPS applications subject to line surges or inductive kickback.
What is the forward voltage of the SS26L at 2 A and 25°C, and how does it compare to lower-voltage variants?
The SS26L exhibits a typical forward voltage (VF) of 0.70 V at 2 A and 25°C, per the ELECTRICAL SPECIFICATIONS table. This is higher than SS22L–SS24L (0.50 V) due to the wider bandgap trade-off for 60 V blocking capability, but remains competitive among 60 V Schottky rectifiers for efficiency-critical designs.
Is the SS26L compliant with RoHS and halogen-free standards?
Yes, the SS26L is RoHS compliant and halogen-free according to IEC 61249-2-21, as confirmed in the FEATURES section of the official datasheet. These compliance statements apply directly to the SS26L variant and are not extrapolated from family-level claims.
What is the moisture sensitivity level (MSL) of the SS26L, and how does it affect manufacturing?
The SS26L has a moisture sensitivity level (MSL) of Level 1 per J-STD-020, meaning it has unlimited floor life and can be reflowed without pre-baking. This simplifies SMT line logistics and eliminates yield risk from popcorning, a key advantage for high-volume SS26L deployment in automated adapter and power module assembly.
SS26L Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- 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:
- 400 µA @ 60 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Sub SMA
- Operating Temperature - Junction:
- -55°C ~ 150°C
SS26L FAQ
1.How can I place an order for SS26L through Aetrix?
Please submit a Request for Quotation (RFQ) for SS26L 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 SS26L reliable?
The price and inventory of SS26L are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SS26L is usually 5 days.
3.What payment methods are accepted for SS26L?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SS26L transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SS26L?
SS26L orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SS26L 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 SS26L?
For technical support, including SS26L datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SS26L requirements.
6.How does Aetrix verify that SS26L is sourced from the original manufacturer or authorized distributors?
All SS26L 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 SS26L meets industry standards.
7.What is the process for return or replacement of SS26L?
All SS26L units undergo pre-shipment inspection (PSI). If there is an issue with SS26L, 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 SS26L part is unused and in its original packaging.
Return procedure for SS26L:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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