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Taiwan Semiconductor Corporation SSL14H
- Part No.:
- SSL14H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SSL14H.pdf
- Description:
- DIODE SCHOTTKY 40V 1A DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,603
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Product details
Overview
SSL14H from Taiwan Semiconductor is a 1 A, 40 V Schottky barrier surface-mount rectifier in DO-214AC (SMA) package, qualified to AEC-Q101, with VF ≤ 0.39 V at 1 A and IR ≤ 200 μA at 25°C, used for reverse battery protection and DC/DC converter freewheeling in automotive lighting systems.
For engineers reviewing the SSL14H datasheet, SSL14H pinout, SSL14H application, or SSL14H equivalent, key selection factors include its 40 V VRRM rating, 50 A IFSM surge capability, AEC-Q101 qualification, low VF for thermal efficiency, and DO-214AC mechanical compatibility with automated SMT assembly.
Technical Context
The SSL14H is a single-die Schottky rectifier optimized for high-frequency, low-voltage power conversion. Its 40 V repetitive peak reverse voltage and 0.39 V max forward voltage at 1 A enable efficient operation in compact DC/DC topologies where conduction loss minimization is critical.
Thermally, it features RθJL = 28 °C/W and RθJA = 88 °C/W, supporting sustained 1 A operation up to +125°C junction temperature. The device includes a guard ring for overvoltage robustness and meets JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - maximum non-repetitive reverse blocking voltage; defines safe operating range in 24 V automotive systems with load dump transients |
| IF | 1 A continuous - rated average forward current; supports stable operation in low-power DC/DC converters and LED drivers |
| VF (max) | 0.39 V @ 1 A, 25°C - low conduction loss reduces heat generation and improves system efficiency in high-duty-cycle applications |
| IFSM | 50 A @ 8.3 ms - handles inrush and fault currents without failure, critical for reverse battery protection circuits |
| TJ max | +125°C - enables deployment in under-hood automotive environments with minimal derating |
| RθJL | 28 °C/W - low junction-to-lead thermal resistance allows effective heat transfer to PCB copper, easing thermal design |
Pinout & Package
Package: DO-214AC (SMA), surface-mount plastic case with cathode band marking; polarity indicated by molded band; matte tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., ground or switch node); requires adequate copper pour for thermal dissipation |
| Cathode | Forward current exit / reverse blocking terminal | Marked by visible band; connects to higher-potential rail (e.g., battery input); carries full load current in freewheeling path |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - required for under-hood and lighting modules |
| Guard ring structure | Enhances edge termination robustness against localized overvoltage stress, improving long-term stability in noisy 12/24 V systems |
| Moisture sensitivity level 1 | Zero bake requirement before reflow; compatible with standard SMT lines without dry-pack handling or floor-life constraints |
| Halogen-free & RoHS compliant | Meets global environmental regulations and OEM material declarations; avoids corrosive halogen residues in high-humidity environments |
Applications
| Reverse Battery Protection | Automotive LED Lighting |
|---|---|
Use Scenario: Prevents damage to vehicle electronics during incorrect battery connection in 12 V/24 V systems. IC Role / Device Role / Timing Role: Unidirectional current blocking element placed in series with main power rail. Use Value: 40 V VRRM withstands load dump spikes; 50 A IFSM survives jump-start surges; low VF minimizes voltage drop across protection path. | Use Scenario: Drives headlamp or interior LED arrays with PWM dimming and transient suppression. IC Role / Device Role / Timing Role: Freewheeling diode in buck or boost LED driver output stage. Use Value: 0.39 V VF reduces power loss and thermal stress on driver IC; DO-214AC footprint enables compact layout near inductor. |
| DC/DC Converter Output Rectification | Low-Voltage Inverter Freewheeling |
Use Scenario: Secondary-side rectification in isolated 5–12 V DC/DC supplies for infotainment or ADAS ECUs. IC Role / Device Role / Timing Role: High-frequency synchronous rectifier replacement in non-synchronous flyback or forward converters. Use Value: Fast recovery and low Qrr (inferred from Schottky construction) minimize switching losses; 125°C TJ rating supports sealed enclosure operation. | Use Scenario: Freewheeling path in half-bridge inverters powering small BLDC fans or pumps in HVAC modules. IC Role / Device Role / Timing Role: Clamp diode across inductive load to recirculate current during MOSFET off-time. Use Value: 50 A IFSM accommodates motor startup surges; guard ring prevents avalanche-induced failure during rapid voltage reversal. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS14 (ON Semiconductor) | Same DO-214AC package, 40 V VRRM, but VF = 0.55 V (max) at 1 A - 41% higher conduction loss | Lacks AEC-Q101 qualification; not approved for automotive safety-critical subsystems | Select SS14 only for cost-sensitive industrial or consumer DC/DC where qualification is not mandated |
| SB140 (Diodes Inc.) | 40 V VRRM, 1 A IF, VF = 0.5 V (max); RθJA = 100 °C/W - 14% higher thermal resistance than SSL14H | Qualified to AEC-Q101 but uses older process; higher IR (500 μA vs. 200 μA) increases leakage in battery-off states | Choose SB140 if legacy qualification documentation is required, but verify leakage impact on sleep-mode current budgets |
Compared with SS14 and SB140, the SSL14H delivers the lowest VF (0.39 V), best thermal performance (RθJA = 88 °C/W), and full AEC-Q101 compliance - making it optimal for thermally constrained, safety-aware automotive power rails where efficiency and reliability are co-prioritized.
Availability
SSL14H is available at Aetrix Electronics and suitable for reverse battery protection, automotive LED lighting, and DC/DC converter output rectification requiring stable component supply across automotive Tier-1 production programs.
Supply support for SSL14H 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 computing markets since 1979.
The SSL12H–SSL14H family targets high-reliability, surface-mount Schottky rectification in automotive power systems - designed specifically to meet AEC-Q101 requirements while delivering low VF and robust surge capability in DO-214AC packaging.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) of the SSL14H?
The SSL14H has a VRRM of 40 V, verified per the manufacturer's absolute maximum ratings table. This rating ensures reliable blocking in 24 V automotive systems subject to ISO 7637-2 load dump transients. The SSL14H's 40 V VRRM distinguishes it from the SSL12H (20 V) and SSL13H (30 V) in the same family.
Is the SSL14H qualified for automotive applications?
Yes, the SSL14H is explicitly qualified to AEC-Q101, as stated in the FEATURES section of the official datasheet. This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and ESD, confirming suitability for automotive power management, lighting, and body electronics where reliability is mandatory.
What is the forward voltage (VF) specification for the SSL14H at rated current?
The SSL14H has a maximum forward voltage of 0.39 V at 1 A and 25°C, per the ELECTRICAL SPECIFICATIONS table. This value is measured under pulsed conditions (PW = 0.3 ms) and reflects the device's low-conduction-loss advantage over standard silicon diodes, directly reducing power dissipation in high-current paths.
Does the SSL14H have a defined pinout or terminal configuration?
Yes - the SSL14H is a two-terminal DO-214AC (SMA) device with anode and cathode terminals. Polarity is marked by a cathode band on the molded body. The anode connects to the lower-potential side of the circuit; the cathode connects to the higher-potential rail. No internal connections or multi-pin configuration exists.
What packaging and reel quantity is offered for the SSL14H?
The SSL14H is supplied in DO-214AC (SMA) package on 7,500-piece tape-and-reel format, as specified in the ORDERING INFORMATION section. This standard SMT packaging supports high-speed pick-and-place assembly and complies with JEDEC standards for automated manufacturing lines.
SSL14H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 390 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 200 µA @ 40 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 125°C
SSL14H FAQ
1.How can I place an order for SSL14H through Aetrix?
Please submit a Request for Quotation (RFQ) for SSL14H 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 SSL14H reliable?
The price and inventory of SSL14H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SSL14H is usually 5 days.
3.What payment methods are accepted for SSL14H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SSL14H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SSL14H?
SSL14H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SSL14H 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 SSL14H?
For technical support, including SSL14H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SSL14H requirements.
6.How does Aetrix verify that SSL14H is sourced from the original manufacturer or authorized distributors?
All SSL14H 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 SSL14H meets industry standards.
7.What is the process for return or replacement of SSL14H?
All SSL14H units undergo pre-shipment inspection (PSI). If there is an issue with SSL14H, 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 SSL14H part is unused and in its original packaging.
Return procedure for SSL14H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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