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Taiwan Semiconductor Corporation SS510ALH
- Part No.:
- SS510ALH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
SS510ALH.pdf
- Description:
- 5A, 100V, SCHOTTKY RECTIFIER
- Quantity:
- Payment:
- Shipping:
Inventory:6,920
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Product details
Overview
SS510ALH from Taiwan Semiconductor is a 5A, 100V Schottky barrier surface-mount rectifier in Thin SMA package, featuring low forward voltage (0.76 V at 5 A, 25°C), high surge capability (110 A IFSM), AEC-Q101 qualification, and junction temperature rating up to +150°C - deployed in automotive-grade DC/DC converters and industrial SMPS.
For engineers reviewing the SS510ALH datasheet, SS510ALH pinout, SS510ALH application, or SS510ALH equivalent, key selection criteria include reverse voltage margin (100 V VRRM), thermal resistance (RθJL = 17 °C/W), junction capacitance (164 pF), moisture sensitivity level (MSL 1), and RoHS/halogen-free compliance for high-reliability board assembly.
Technical Context
The SS510ALH implements a single-die Schottky junction optimized for low conduction loss in high-frequency switching topologies. Its 100 V peak reverse voltage and 5 A average forward current support continuous operation in buck-derived DC/DC stages with minimal thermal derating up to 125°C junction temperature.
Thermal performance is defined by RθJL = 17 °C/W and RθJA = 78 °C/W on a 5 mm × 5 mm Cu pad PCB - enabling compact layout without forced airflow. Reverse leakage remains ≤10 µA at 25°C and ≤1 mA at 125°C, critical for standby efficiency in always-on power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - supports input rails up to 70 V DC with ≥30% safety margin against transients |
| IF | 5 A continuous - sustains full-load operation in 25–50 W DC/DC modules |
| VF | 0.76 V @ 5 A, 25°C - reduces conduction loss to <3.8 W per device at rated current |
| IFSM | 110 A @ 8.3 ms - withstands inrush and fault currents in unregulated inputs |
| TJ max | +150°C - enables operation in under-hood or enclosed industrial enclosures |
| CJ | 164 pF @ 1 MHz, 4 V - limits capacitive switching loss in >300 kHz converters |
| RθJL | 17 °C/W - allows direct thermal coupling to PCB copper for passive cooling |
Pinout & Package
Package: Thin SMA (Surface Mount Assembly), molded UL 94V-0 compound, matte tin-plated leads, cathode indicated by band, MSL Level 1, weight ≈0.028 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input current entry point | Connected to higher-potential node (e.g., switch node or input rail) |
| Cathode | Output current exit point | Connected to output filter capacitor or ground return path; marked by band |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics per stress test requirements (HTOL, TC, HAST, etc.) |
| Low VF at high TJ | 0.63 V @ 5 A, 125°C - maintains efficiency during thermal transients |
| High IFSM | 110 A surge rating - eliminates need for parallel devices in transient-prone inputs |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU |
| MSL Level 1 | No bake preconditioning required before reflow - simplifies SMT line integration |
Applications
| Automotive On-Board DC/DC Converter | Industrial Switching Mode Power Supply |
|---|---|
Use Scenario: 12 V to 3.3/5/12 V conversion in ADAS camera modules and body control units. IC Role / Device Role / Timing Role: Output rectifier in synchronous or asynchronous buck converter stage. Use Value: Low VF and high TJ rating ensure stable regulation across -40°C to +125°C ambient with no derating. | Use Scenario: Primary-side auxiliary supply and secondary-side output rectification in DIN-rail mounted PSUs. IC Role / Device Role / Timing Role: High-efficiency freewheeling diode in flyback and forward converters. Use Value: 110 A IFSM handles repetitive load dumps and short-circuit recovery without failure. |
| LED Driver Power Stage | USB-C PD Adapter Secondary Rectification |
Use Scenario: Constant-current LED string supply in streetlight and signage applications. IC Role / Device Role / Timing Role: Output rectifier in isolated buck-boost or SEPIC-derived topologies. Use Value: 164 pF junction capacitance minimizes switching loss at 200–500 kHz PWM frequencies. | Use Scenario: Secondary-side synchronous rectification replacement in 65 W USB-C chargers. IC Role / Device Role / Timing Role: Fast-recovery Schottky rectifier in QR flyback output stage. Use Value: MSL Level 1 and AEC-Q101 qualification support high-yield automated assembly and field reliability. |
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-50WQ04FN-M3/45 | 45 V VRRM, 5 A, TO-277 package, RθJA = 60 °C/W | Limited to ≤32 V systems; lower thermal resistance but lower voltage rating | Select when VIN ≤ 30 V and board space permits TO-277 footprint |
| ON Semiconductor SB5100-E3/54 | 100 V VRRM, 5 A, SMA package, VF = 0.85 V @ 5 A, 25°C | Higher forward drop increases conduction loss by ~0.45 W vs. SS510ALH | Acceptable where cost sensitivity outweighs 3–5% efficiency penalty in low-duty-cycle use |
Compared with VS-50WQ04FN-M3/45 and SB5100-E3/54, the SS510ALH delivers superior voltage margin (100 V), lowest VF in its class, and automotive qualification - making it optimal for 12/24 V automotive and industrial systems requiring robustness and efficiency.
Availability
SS510ALH is available at Aetrix Electronics and suitable for automotive on-board DC/DC converters, industrial switching mode power supplies, and LED driver power stages requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for SS510ALH 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 SS510ALH belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered for high-efficiency, high-reliability power conversion in harsh-environment applications where thermal stability and surge resilience are critical.
FAQ
What is the maximum junction temperature rating for the SS510ALH?
The SS510ALH has a maximum junction temperature (TJ) rating of +150°C, verified per AEC-Q101 stress testing. This allows uninterrupted operation in under-hood automotive environments and sealed industrial enclosures. Derating begins above 125°C ambient, and thermal design must maintain TJ ≤ 150°C using the specified RθJL = 17 °C/W path to PCB copper. The SS510ALH datasheet confirms this limit applies across all operating conditions.
Is the SS510ALH suitable for automotive applications?
Yes, the SS510ALH is AEC-Q101 qualified and explicitly designed for automotive power systems including on-board DC/DC converters and body electronics. It meets HTOL, temperature cycling, and humidity testing requirements per AEC-Q101 Rev D. Its MSL Level 1 rating, halogen-free construction, and +150°C TJ rating align with automotive manufacturing and field reliability standards. The SS510ALH marking code "510ALH" is certified for automotive use in Taiwan Semiconductor's qualification report.
What is the forward voltage of the SS510ALH at 5 A and 125°C?
The SS510ALH exhibits a typical forward voltage of 0.63 V at 5 A and 125°C junction temperature, with a maximum of 0.80 V under those conditions. This low VF drift with temperature ensures stable efficiency during thermal transients. Measured per pulse test (PW = 0.3 ms), this value is documented in the Electrical Specifications table of the SS510ALH datasheet Version B2103.
Does the SS510ALH have a defined polarity marking?
Yes, the SS510ALH uses a cathode band to indicate polarity - a white or light-colored stripe on the package body adjacent to the cathode terminal. This marking complies with JEDEC standards and is visible under standard optical inspection. The anode is the unmarked end. Correct orientation is essential for functional rectification and reverse voltage protection; installing the SS510ALH backward will cause immediate failure under bias.
What packaging format is used for the SS510ALH?
The SS510ALH is supplied in Tape & Reel format, 14,000 units per reel, compatible with standard high-speed pick-and-place equipment. The Thin SMA package features matte tin-plated leads meeting J-STD-002 solderability requirements, and the reel labeling includes full part number, date code (YW), and factory code (F). This packaging supports automated SMT assembly without preconditioning due to MSL Level 1 classification - a key advantage over moisture-sensitive alternatives.
SS510ALH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-221AC, SMA Flat Leads
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 850 mV @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 10 µA @ 100 V
- Capacitance @ Vr, F:
- 164pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Thin SMA
- Operating Temperature - Junction:
- -55°C ~ 150°C
SS510ALH FAQ
1.How can I place an order for SS510ALH through Aetrix?
Please submit a Request for Quotation (RFQ) for SS510ALH 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 SS510ALH reliable?
The price and inventory of SS510ALH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SS510ALH is usually 5 days.
3.What payment methods are accepted for SS510ALH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SS510ALH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SS510ALH?
SS510ALH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SS510ALH 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 SS510ALH?
For technical support, including SS510ALH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SS510ALH requirements.
6.How does Aetrix verify that SS510ALH is sourced from the original manufacturer or authorized distributors?
All SS510ALH 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 SS510ALH meets industry standards.
7.What is the process for return or replacement of SS510ALH?
All SS510ALH units undergo pre-shipment inspection (PSI). If there is an issue with SS510ALH, 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 SS510ALH part is unused and in its original packaging.
Return procedure for SS510ALH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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