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Taiwan Semiconductor Corporation SS110LH
- Part No.:
- SS110LH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
SS110LH.pdf
- Description:
- 1A, 100V, SCHOTTKY RECTIFIER
- Quantity:
- Payment:
- Shipping:
Inventory:5,934
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Product details
Overview
SS110LH from Taiwan Semiconductor is a 1 A, 100 V Schottky barrier surface-mount rectifier in Sub SMA package, featuring 0.700 V forward voltage at 0.5 A / 25°C, 0.800 V at 1.0 A / 25°C, 50 µA reverse current at rated VR, and 30 A peak surge capability - used in automotive lighting and DC/DC converter freewheeling paths.
For engineers reviewing the SS110LH datasheet, SS110LH pinout, SS110LH application, or SS110LH equivalent, key selection criteria include its AEC-Q101 qualification, 100 V VRRM, Sub SMA thermal resistance (RθJL = 45°C/W), moisture sensitivity level 1, and cathode-band polarity marking for reliable high-frequency power conversion design.
Technical Context
The SS110LH operates as a single-die Schottky rectifier with guard ring overvoltage protection and JESD201 Class 2 whisker-resistant matte tin plating. Its junction temperature range spans −55°C to +150°C, supporting under-hood automotive environments.
Designed for low-loss unidirectional conduction, it delivers 10,000 V/µs dV/dt rating and 100°C/W RθJA, enabling stable operation in space-constrained, thermally demanding DC/DC and reverse-battery-protection circuits without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - maximum repetitive reverse blocking voltage, defines safe operating limit in 12–48 V automotive systems with transient spikes |
| IF | 1 A continuous - rated average forward current at TL = 115°C, supports compact 1 A power rail designs |
| VF @ 0.5 A | 0.700 V - low conduction loss enabling >92% efficiency in 5–12 V output DC/DC converters |
| IFSM | 30 A - withstands 8.3 ms half-sine surges, critical for load dump and motor commutation transients |
| RθJL | 45 °C/W - enables direct PCB copper pour heat sinking without heatsink, reducing BOM cost |
| IR @ VR | 50 µA - low leakage preserves battery life in always-on vehicle modules |
| TJ max | +150 °C - qualified for under-hood placement per AEC-Q101, eliminating derating in hot ambient |
Pinout & Package
Package: Sub SMA - surface-mount, single-anode/single-cathode configuration with cathode band marking; UL 94V-0 molding compound; 0.019 g weight; JEDEC-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry | Connected to lower-potential side (e.g., switch node in buck converter); requires thermal pad connection for RθJL optimization |
| Cathode | Forward current exit / reverse blocking terminal | Marked by visible band; ties to output rail or ground return; must maintain clearance from adjacent high-dV/dt traces |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements - eliminates need for additional qualification effort in Tier-1 designs |
| Guard ring structure | Enhances edge termination robustness against localized overvoltage, improving reliability in noisy 12 V battery systems |
| Moisture sensitivity level 1 | Zero bake requirement before reflow - simplifies SMT line handling and reduces production delay risk |
| Halogen-free (IEC 61249-2-21) | Complies with EU ELV and auto OEM green material directives without sacrificing thermal or electrical performance |
| High dV/dt rating (10,000 V/µs) | Resists false turn-on during fast-switching events in synchronous rectifier or flyback topologies |
Applications
| Automotive LED Headlamp Driver | 12 V to 5 V Buck Converter Freewheeling Diode |
|---|---|
Use Scenario: High-brightness LED array powered via constant-current buck regulator in modern headlamps. IC Role / Device Role / Timing Role: Freewheeling diode providing low-loss current path during high-side MOSFET off-time. Use Value: 0.700 V VF minimizes conduction loss and thermal rise, enabling smaller heatsinks and higher lumen density within tight ECU packaging. | Use Scenario: Power supply for infotainment MCU core rail in passenger vehicle dashboard. IC Role / Device Role / Timing Role: Output rectifier completing energy transfer cycle in non-synchronous buck stage. Use Value: 30 A IFSM handles cold-crank surge events without failure, ensuring system boot reliability during engine start. |
| Reverse Battery Protection Circuit | Low-Voltage Inverter Output Stage |
Use Scenario: Protection of 12 V ECUs against accidental reverse battery connection during service. IC Role / Device Role / Timing Role: Series-blocking diode placed between battery input and main power rail. Use Value: 100 V VRRM safely clamps reverse polarity while 50 µA IR prevents standby current drain - extending battery life in parked vehicles. | Use Scenario: Output rectification in 24 V AC inverter feeding auxiliary HVAC blower motors. IC Role / Device Role / Timing Role: High-frequency switching rectifier in full-bridge output stage operating up to 100 kHz. Use Value: 10,000 V/µs dV/dt rating prevents spurious conduction during fast bridge transitions, maintaining waveform fidelity and EMI compliance. |
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-1EWH01-M3/5AT | Same Sub SMA package, 100 V VRRM, but 0.75 V VF @ 1 A - 50 mV higher conduction loss | Higher thermal dissipation required; less suitable for 100°C ambient automotive zones | Acceptable where board layout allows extra thermal relief or where Vishay sourcing preference applies |
| ON Semiconductor SB1100-TB | 100 V VRRM, 1 A rating, but TO-277 package - larger footprint and 75°C/W RθJA | Requires PCB area increase and thermal via redesign; not drop-in compatible | Only viable if Sub SMA footprint is not constrained and legacy TO-277 tooling is in place |
Compared with VS-1EWH01-M3/5AT and SB1100-TB, the SS110LH offers the lowest VF in Sub SMA form factor and AEC-Q101 validation - making it optimal for space-limited, thermally aggressive automotive power stages where efficiency and qualification are jointly critical.
Availability
SS110LH is available at Aetrix Electronics and suitable for automotive lighting, DC/DC converter freewheeling, and reverse battery protection applications requiring stable component supply, long-term lifecycle assurance, and AEC-Q101-compliant sourcing.
Supply support for SS110LH 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 global automotive, industrial, and consumer markets since 1979.
The SS110LH belongs to TSC's AEC-Q101-qualified Schottky rectifier family designed specifically for high-reliability 12–48 V automotive power systems - emphasizing low VF, surge resilience, and process-controlled thermal performance.
FAQ
What is the maximum junction temperature rating for the SS110LH?
The SS110LH has a maximum junction temperature (TJ) of +150°C, validated per AEC-Q101 stress testing. This allows uninterrupted operation in under-hood environments where ambient temperatures exceed 105°C. The SS110LH maintains specified electrical parameters up to this limit when thermal design respects RθJL = 45°C/W and proper PCB copper area is allocated.
Is the SS110LH suitable for reverse battery protection in 12 V automotive systems?
Yes, the SS110LH is well-suited for reverse battery protection due to its 100 V VRRM, which exceeds typical automotive load-dump transients (up to 60 V), and its 50 µA reverse leakage at rated VR - minimizing standby current drain. Its AEC-Q101 qualification and −55°C to +150°C operating range further confirm suitability for this safety-critical function in the SS110LH application space.
Does the SS110LH have a halogen-free construction?
Yes, the SS110LH uses halogen-free molding compound compliant with IEC 61249-2-21, satisfying major automotive OEM environmental requirements. This specification is explicitly stated in the official Taiwan Semiconductor datasheet Version A2103 and verified through material declarations - confirming no brominated flame retardants or chlorine-based additives are present in the SS110LH package.
What is the forward voltage of the SS110LH at 1.0 A and 25°C?
The SS110LH exhibits a maximum forward voltage (VF) of 0.800 V at IF = 1.0 A and TJ = 25°C, as confirmed in the Electrical Specifications table of the Taiwan Semiconductor datasheet. This value is measured under pulsed conditions (PW = 0.3 ms) and represents worst-case conduction loss for thermal and efficiency calculations in the SS110LH design-in phase.
What packaging and reel quantity does the SS110LH ship in?
The SS110LH is supplied in Sub SMA package on tape-and-reel format, with 10,000 units per reel - matching the standard ordering code SS1xLH per Taiwan Semiconductor's official documentation. This packaging supports high-speed automated placement and complies with moisture sensitivity level 1 (MSL-1), eliminating pre-bake requirements prior to SMT reflow processing for the SS110LH.
SS110LH 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):
- 100 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 800 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 50 µA @ 100 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
SS110LH FAQ
1.How can I place an order for SS110LH through Aetrix?
Please submit a Request for Quotation (RFQ) for SS110LH 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 SS110LH reliable?
The price and inventory of SS110LH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SS110LH is usually 5 days.
3.What payment methods are accepted for SS110LH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SS110LH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SS110LH?
SS110LH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SS110LH 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 SS110LH?
For technical support, including SS110LH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SS110LH requirements.
6.How does Aetrix verify that SS110LH is sourced from the original manufacturer or authorized distributors?
All SS110LH 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 SS110LH meets industry standards.
7.What is the process for return or replacement of SS110LH?
All SS110LH units undergo pre-shipment inspection (PSI). If there is an issue with SS110LH, 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 SS110LH part is unused and in its original packaging.
Return procedure for SS110LH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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