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Taiwan Semiconductor Corporation SSL33H
- Part No.:
- SSL33H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SSL33H.pdf
- Description:
- DIODE SCHOTTKY 30V 3A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,770
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Product details
Overview
SSL33H from Taiwan Semiconductor is a 3A, 30V Schottky barrier surface-mount rectifier in DO-214AB (SMC) package, designed for high-efficiency DC/DC conversion in automotive-grade power supplies. It delivers low forward voltage (VF ≤ 0.41 V at 3 A, 25°C), high surge capability (IFSM = 100 A), and AEC-Q101 qualification for under-hood SMPS applications.
For engineers reviewing the SSL33H datasheet, SSL33H pinout, SSL33H application, or SSL33H equivalent, key selection criteria include repetitive peak reverse voltage (VRRM = 30 V), junction temperature range (–55°C to +125°C), thermal resistance (RθJL = 13°C/W), and moisture sensitivity level (MSL 1).
Technical Context
The SSL33H is a single-die Schottky rectifier optimized for fast switching and minimal conduction loss in medium-voltage DC/DC stages. Its guard ring structure enhances overvoltage robustness, while matte tin-plated leads ensure reliable solderability per J-STD-002.
Thermal performance is characterized with RθJA = 53°C/W on a 16 mm × 16 mm Cu pad PCB, supporting continuous 3 A operation up to 125°C junction temperature. Reverse leakage remains ≤200 μA at 25°C and ≤50 mA at 100°C under rated VR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum non-repetitive reverse voltage the device blocks reliably in circuit |
| IF | 3 A - Continuous average forward current rating at TA = 25°C |
| IFSM | 100 A - Peak surge current tolerance for 8.3 ms half-sine wave, critical for input capacitor charging transients |
| VF | ≤0.41 V - Forward voltage drop at 3 A and 25°C, directly determining conduction loss in high-current paths |
| IR | ≤200 μA @ 25°C - Reverse leakage current at rated VR, impacts standby power in offline converters |
| RθJL | 13 °C/W - Junction-to-lead thermal resistance, enables direct thermal coupling to PCB copper for passive cooling |
| TJ Range | –55°C to +125°C - Operating junction temperature window validated for automotive under-hood environments |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, cathode-indicated by molded band. Case meets UL 94V-0; terminals are matte tin-plated per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side (e.g., switch node or ground return) in buck/flyback secondary |
| Cathode | Current exit point during forward conduction | Marked by band; connects to output rail or positive bus-defines polarity-sensitive placement |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTGB, HTRB, and temperature cycling |
| Guard ring structure | Improves edge termination reliability and withstands transient overvoltage without avalanche breakdown |
| MSL Level 1 | Zero floor-life limitation-no baking required before reflow, simplifying SMT line integration |
| Halogen-free & RoHS compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declaration requirements |
| High IFSM / IF ratio (33:1) | Supports robust startup and fault handling in 12 V/24 V automotive systems with large bulk capacitors |
Applications
| Automotive DC/DC Converters | Industrial LED Drivers |
|---|---|
Use Scenario: 12 V to 5 V/3.3 V step-down converter in vehicle infotainment head units. IC Role / Device Role / Timing Role: Output rectifier in synchronous or asynchronous buck topology. Use Value: Low VF minimizes power loss at 3 A load, reducing thermal stress on PCB and enabling compact heatsinkless design. | Use Scenario: Constant-current LED string supply in factory lighting fixtures with 24 V input. IC Role / Device Role / Timing Role: Secondary-side freewheeling diode in flyback or buck-boost LED driver. Use Value: 30 V VRRM safely accommodates reflected voltage spikes from inductive LED loads without derating. |
| AC-DC Adapters | Telecom Power Modules |
Use Scenario: Secondary-side rectification in 19 V, 3 A laptop adapters. IC Role / Device Role / Timing Role: Output rectifier replacing conventional PN diodes in quasi-resonant flyback designs. Use Value: 0.41 V VF reduces conduction loss by >40% vs. 0.7 V Si diodes, improving adapter efficiency from 85% to >88%. | Use Scenario: OR-ing diode in redundant 48 V telecom power shelf outputs. IC Role / Device Role / Timing Role: High-current, low-loss unidirectional path selector. Use Value: 100 A IFSM handles hot-swap inrush; MSL 1 ensures compatibility with lead-free reflow profiles. |
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-3EY30-M3 | VRRM = 30 V, IF = 3 A, VF = 0.52 V (typ) at 3 A - higher forward drop than SSL33H | Higher conduction loss limits use in thermally constrained 12 V automotive modules | Select when legacy footprint compatibility with TO-277A is required; not DO-214AB drop-in |
| ON Semiconductor SB330 | VRRM = 30 V, IF = 3 A, VF = 0.54 V (max) at 3 A - wider VF distribution and no AEC-Q101 qualification | Lacks automotive stress validation; unsuitable for under-hood deployment without additional qualification | Acceptable for industrial adapters where AEC-Q101 is not mandated and cost is primary driver |
Compared with VS-3EY30-M3 and SB330, the SSL33H offers the lowest VF (≤0.41 V), AEC-Q101 compliance, and MSL 1 handling-making it the preferred choice for space-constrained, thermally demanding automotive and industrial power supplies requiring zero reflow risk.
Availability
SSL33H is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial LED drivers, and AC-DC adapters requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for SSL33H 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 devices, TVS, and rectifiers since 1979.
The SSL3xH series was developed to deliver AEC-Q101-qualified Schottky rectifiers with optimized VF/RθJL trade-offs for next-generation automotive and industrial power conversion systems operating up to 125°C.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) of the SSL33H?
The SSL33H has a VRRM rating of 30 V, meaning it can reliably block up to 30 V of reverse voltage in repetitive operation. This value is confirmed in the Absolute Maximum Ratings table of the official TSC datasheet (Version B2310), and distinguishes SSL33H from SSL32H (20 V) and SSL34H (40 V) in the same family. Designers must ensure system-level reverse transients do not exceed this limit.
Is the SSL33H qualified for automotive applications?
Yes, the SSL33H is AEC-Q101 qualified, as explicitly stated in its FEATURES section. This qualification covers stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling-validating its suitability for under-hood automotive power supplies. The SSL33H's –55°C to +125°C TJ range and MSL 1 rating further support automotive manufacturing requirements.
What is the forward voltage (VF) specification for SSL33H at rated current?
The SSL33H has a maximum forward voltage of 0.41 V at IF = 3 A and TJ = 25°C, per the Electrical Specifications table. This low VF is measured under pulsed conditions (PW = 0.3 ms) and reflects typical conduction loss in high-frequency switching applications. At elevated temperatures (e.g., 100°C), VF decreases slightly, but design margins should be based on the 25°C max value.
Does the SSL33H have a defined moisture sensitivity level (MSL)?
Yes, the SSL33H is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and requires no baking prior to reflow soldering. This is confirmed in the FEATURES list and simplifies SMT line integration-especially important for high-volume automotive electronics manufacturing where moisture-related defects must be eliminated.
What package type does the SSL33H use, and what are its key mechanical attributes?
The SSL33H uses the DO-214AB (SMC) package, a standard surface-mount outline with 6.80 mm × 8.15 mm body dimensions and 2.45 mm height. Key attributes include UL 94V-0 mold compound, matte tin-plated leads compliant with J-STD-002, cathode polarity indicated by a molded band, and a typical weight of 0.210 g. The package supports automated placement and reflow per JEDEC standards.
SSL33H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AB, SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 410 mV @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 200 µA @ 30 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 125°C
SSL33H FAQ
1.How can I place an order for SSL33H through Aetrix?
Please submit a Request for Quotation (RFQ) for SSL33H 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 SSL33H reliable?
The price and inventory of SSL33H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SSL33H is usually 5 days.
3.What payment methods are accepted for SSL33H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SSL33H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SSL33H?
SSL33H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SSL33H 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 SSL33H?
For technical support, including SSL33H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SSL33H requirements.
6.How does Aetrix verify that SSL33H is sourced from the original manufacturer or authorized distributors?
All SSL33H 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 SSL33H meets industry standards.
7.What is the process for return or replacement of SSL33H?
All SSL33H units undergo pre-shipment inspection (PSI). If there is an issue with SSL33H, 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 SSL33H part is unused and in its original packaging.
Return procedure for SSL33H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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