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Taiwan Semiconductor Corporation SS26LH
- Part No.:
- SS26LH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
SS26LH.pdf
- Description:
- 2A, 60V, SCHOTTKY RECTIFIER
- Quantity:
- Payment:
- Shipping:
Inventory:3,539
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Product details
Overview
SS26LH 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 400 µA reverse leakage at 25°C, optimized for DC/DC converters and freewheeling applications in automotive lighting and power supplies.
For engineers reviewing the SS26LH datasheet, SS26LH pinout, SS26LH application, or SS26LH equivalent, key selection criteria include its AEC-Q101 qualification, 50 A surge rating, 125°C max junction temperature, low VF trade-off vs. VRRM, and Sub SMA thermal performance (RθJL = 17°C/W).
Technical Context
The SS26LH implements a single-die Schottky junction with guard ring overvoltage protection and matte tin-plated leads compliant with J-STD-002 solderability. Its 60 V VRRM and 0.70 V VF balance efficiency and breakdown margin for 12–48 V system rails.
Thermally, it delivers RθJL = 17°C/W and RθJA = 75°C/W in Sub SMA, supporting continuous 2 A operation up to 125°C junction temperature with derating above 75°C ambient per Fig.1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 60 V - Maximum repetitive reverse voltage; sets upper limit for DC bus or flyback clamp voltage |
| IF | 2 A - Continuous forward current rating; defines steady-state conduction capability |
| VF @ 2 A, 25°C | 0.70 V - Forward drop determining conduction loss (1.4 W at 2 A) |
| IR @ 60 V, 25°C | 400 µA - Reverse leakage defining off-state power loss and thermal runaway risk |
| IFSM | 50 A - Non-repetitive surge current handling capability for startup or fault transients |
| TJ max | 125°C - Maximum junction temperature; constrains thermal design margin in enclosed environments |
| RθJL | 17°C/W - Junction-to-lead thermal resistance; enables direct PCB copper pour heat sinking |
Pinout & Package
Package: Sub SMA - Surface-mount plastic package with cathode band polarity marking, UL 94V-0 molding compound, and moisture sensitivity level 1 (MSL-1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter) |
| Cathode | Forward current exit / reverse blocking terminal | Connected to higher-potential rail (e.g., output capacitor positive) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
| Guard ring structure | Enhances ruggedness against transient overvoltage without external snubbers |
| Moisture sensitivity level 1 | Enables standard SMT reflow without baking preconditioning |
| Halogen-free construction | Complies with IEC 61249-2-21 for RoHS-compliant end-of-life processing |
| High surge current (50 A) | Supports inrush current handling in DC/DC input stages and motor drive freewheeling |
Applications
| Automotive LED Lighting | Industrial DC/DC Converters |
|---|---|
Use Scenario: High-brightness LED headlamp modules requiring reverse battery protection and low-loss freewheeling during PWM dimming. IC Role / Device Role / Timing Role: Freewheeling diode and reverse polarity protection element in buck/boost LED drivers. Use Value: 0.70 V VF minimizes conduction loss at 2 A peak current, preserving thermal headroom in sealed housings. | Use Scenario: 24 V input to 5 V/3.3 V isolated or non-isolated DC/DC converters in PLC and sensor interface modules. IC Role / Device Role / Timing Role: Output rectifier in synchronous or asynchronous buck topologies. Use Value: 60 V VRRM provides 2× safety margin over 24 V nominal rail, enabling robust operation under load dump conditions. |
| Low-Voltage Inverters | Reverse Battery Protection Circuits |
Use Scenario: 12 V–48 V micro-inverters for solar edge devices and portable UPS systems operating at high switching frequencies (>100 kHz). IC Role / Device Role / Timing Role: High-frequency output rectifier with minimal reverse recovery charge. Use Value: Schottky architecture eliminates minority-carrier storage delay, reducing switching losses and EMI generation. | Use Scenario: Input protection for automotive infotainment and ADAS ECUs exposed to accidental reverse battery connection. IC Role / Device Role / Timing Role: Series-blocking diode on main power input rail. Use Value: 50 A IFSM withstands momentary short-circuit currents during misconnection events without failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS26-E3/5AT (Vishay) | Same 60 V VRRM, 2 A IF, but VF = 0.72 V @ 2 A; Sub SMA package, MSL-1 | Identical function and footprint; slightly higher VF increases conduction loss by ~3% | Drop-in alternative where minor efficiency trade-off is acceptable and Vishay supply chain is preferred |
| SB260-TB (Diotec) | 60 V VRRM, 2 A IF, VF = 0.75 V @ 2 A; same Sub SMA, but MSL-2 (requires baking) | Requires moisture bake prior to reflow; higher VF yields ~7% more conduction loss than SS26LH | Suitable for non-automotive industrial use with controlled assembly environment |
Compared with SS26-E3/5AT and SB260-TB, the SS26LH offers the lowest forward voltage (0.70 V) and AEC-Q101 qualification-critical for automotive lighting and harsh-environment DC/DC designs where thermal margin and reliability validation are mandatory.
Availability
SS26LH is available at Aetrix Electronics and suitable for automotive LED lighting, industrial DC/DC converters, and reverse battery protection circuits requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.
Supply support for SS26LH 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, serving automotive, industrial, and consumer markets since 1979.
The SS26LH belongs to TSC's SS2xLH Schottky rectifier family, engineered specifically for high-efficiency, high-reliability power conversion in automotive and industrial applications where low VF, AEC-Q101 qualification, and robust surge capability are essential.
FAQ
What is the maximum junction temperature rating for SS26LH?
The SS26LH has a maximum junction temperature (TJ) of +125°C, as specified in the Absolute Maximum Ratings table. This rating applies under continuous operation with appropriate thermal management; derating is required above 75°C ambient per the Forward Current Derating Curve in the datasheet. The SS26LH must not exceed this limit to ensure long-term reliability and avoid parametric shift.
Is SS26LH AEC-Q101 qualified?
Yes, the SS26LH is explicitly AEC-Q101 qualified, as confirmed in the FEATURES section of the official Taiwan Semiconductor datasheet (Version A2103). This qualification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge (ESD), validating its suitability for automotive power electronics such as LED lighting and body control modules.
What is the forward voltage of SS26LH at rated current?
The SS26LH exhibits a typical forward voltage (VF) of 0.70 V at 2 A and 25°C, per the ELECTRICAL SPECIFICATIONS table. This value is measured under pulse conditions (PW = 0.3 ms) and represents the conduction loss baseline; actual VF rises with junction temperature and current, reaching ~0.85 V at 100°C and 2 A based on curve extrapolation.
Does SS26LH have a guard ring structure?
Yes, the SS26LH incorporates a guard ring structure for overvoltage protection, as stated in the FEATURES list. This design enhances edge termination robustness, improving resistance to transient voltage spikes and localized avalanche breakdown-particularly beneficial in automotive load-dump and inductive switching environments where the SS26LH is commonly deployed.
What is the moisture sensitivity level (MSL) of SS26LH?
The SS26LH has a moisture sensitivity level (MSL) of Level 1 per J-STD-020, meaning it can be stored indefinitely at ≤30°C/85% RH and subjected to standard SMT reflow profiles without pre-baking. This simplifies manufacturing logistics and eliminates moisture-related popcorning risks during assembly-a key advantage for high-volume automotive and industrial production.
SS26LH 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Sub SMA
- Operating Temperature - Junction:
- -55°C ~ 150°C
SS26LH FAQ
1.How can I place an order for SS26LH through Aetrix?
Please submit a Request for Quotation (RFQ) for SS26LH 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 SS26LH reliable?
The price and inventory of SS26LH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SS26LH is usually 5 days.
3.What payment methods are accepted for SS26LH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SS26LH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SS26LH?
SS26LH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SS26LH 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 SS26LH?
For technical support, including SS26LH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SS26LH requirements.
6.How does Aetrix verify that SS26LH is sourced from the original manufacturer or authorized distributors?
All SS26LH 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 SS26LH meets industry standards.
7.What is the process for return or replacement of SS26LH?
All SS26LH units undergo pre-shipment inspection (PSI). If there is an issue with SS26LH, 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 SS26LH part is unused and in its original packaging.
Return procedure for SS26LH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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