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Taiwan Semiconductor Corporation SRT110
- Part No.:
- SRT110
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- T-18, Axial
- Datasheet:
-
SRT110.pdf
- Description:
- DIODE SCHOTTKY 100V 1A TS-1
- Quantity:
- Payment:
- Shipping:
Inventory:7,869
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Product details
Overview
SRT110 from Taiwan Semiconductor is a 1 A, 100 V Schottky barrier rectifier in TS-1 package, featuring 0.80 V forward voltage at 1 A and 25 µA reverse leakage at 100 V, optimized for high-efficiency DC/DC converters and automotive-grade power supplies.
For engineers reviewing the SRT110 datasheet, SRT110 pinout, SRT110 application, or SRT110 equivalent, key selection criteria include its AEC-Q101-qualified variant (SRT110H), junction temperature rating up to +150°C, low thermal resistance (50°C/W), and cathode-band polarity marking for unambiguous PCB layout.
Technical Context
The SRT110 operates as a single-die, unidirectional Schottky rectifier with guard ring structure for overvoltage protection and meets JESD201 Class 2 whisker resistance. Its 28 pF junction capacitance at 4 V reverse bias supports high-frequency switching up to several hundred kHz.
Rated for repetitive peak reverse voltage of 100 V and surge current of 25 A (8.3 ms half-sine), it delivers stable conduction under transient load conditions while maintaining TJ ≤ 150°C with proper heatsinking and ambient derating per Fig.1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum continuous reverse blocking voltage before breakdown |
| IF | 1 A - Continuous average forward current at TA = 25°C |
| VF | 0.80 V @ 1 A, 25°C - Low conduction loss enabling >92% efficiency in 12 V–48 V DC/DC stages |
| IR | 100 µA @ 100 V, 25°C - Minimal standby leakage for low-power hold-up circuits |
| TJ max | +150°C - Extended thermal operating range for under-hood automotive modules |
| RθJA | 50°C/W - Thermal resistance enabling 1 W dissipation with ≤50°C rise above ambient |
| CJ | 28 pF @ 1 MHz, 4 V - Low capacitance minimizes switching node ringing in high-frequency SMPS |
Pinout & Package
TS-1 package: surface-mount, single-anode/single-cathode configuration with cathode indicated by molded band; lead finish: pure tin, solderable per J-STD-002; weight ≈ 0.200 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input current entry point | Connected to input rail (e.g., switched node or transformer secondary) |
| Cathode | Output current exit point | Marked with band; connects to output filter capacitor and load return path |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Enhances ruggedness against transient overvoltage without external snubbers |
| AEC-Q101 qualification (SRT110H) | Validated for automotive powertrain and body electronics per stress test requirements |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU |
| High IFSM rating | 25 A surge capability enables robust start-up in capacitive-input AC/DC front-ends |
Applications
| Automotive DC/DC Converter | Industrial SMPS Secondary Side |
|---|---|
Use Scenario: 12 V to 5 V/3.3 V buck converter in engine control unit (ECU) with wide ambient temperature range. IC Role / Device Role / Timing Role: Output rectifier replacing fast recovery diodes to reduce conduction loss and thermal stress. Use Value: 0.80 V VF lowers power dissipation by ~35% vs. 1.1 V Si diode, extending ECU lifetime at +125°C junction. | Use Scenario: Secondary-side synchronous rectification replacement in 24 V industrial power supply with 100 kHz switching frequency. IC Role / Device Role / Timing Role: Freewheeling rectifier in flyback or forward topology delivering regulated 15 V output. Use Value: 28 pF CJ limits switching node oscillation, reducing EMI filter component count and board area. |
| USB-C PD Adapter Output Stage | Telecom DC/DC Module |
Use Scenario: 20 V output rectification in compact 65 W USB-C power adapter with thermally constrained enclosure. IC Role / Device Role / Timing Role: Primary output rectifier handling continuous 1 A load with intermittent 2 A peaks. Use Value: 50°C/W RθJA allows direct PCB copper pour cooling-no heatsink required in 10 mm² footprint. | Use Scenario: -48 V telecom system intermediate bus converter supplying 5 V logic rails. IC Role / Device Role / Timing Role: Isolated secondary-side rectifier in dual-active-bridge topology. Use Value: 100 µA IR at full 100 V rating ensures minimal standby current draw during system sleep mode. |
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 100 V VRRM, 1 A IF, but VF = 0.72 V @ 1 A; TS-1 package; no AEC-Q101 option | Lower forward drop improves light-load efficiency; lacks automotive qualification | Select for cost-sensitive industrial adapters where AEC-Q101 is not mandated |
| ON Semiconductor SB1100-TB | 100 V VRRM, 1 A IF, VF = 0.85 V @ 1 A; DO-214AC package; AEC-Q101 available | Larger DO-214AC footprint increases board area; higher VF increases conduction loss | Choose when legacy DO-214AC layout compatibility is required over TS-1 miniaturization |
Compared with VS-1EWH01-M3/5AT and SB1100-TB, the SRT110 offers optimal balance of low VF (0.80 V), AEC-Q101 readiness via SRT110H variant, and TS-1 space savings-making it preferred for next-gen automotive and compact industrial DC/DC designs.
Availability
SRT110 is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial SMPS secondary-side rectification, and USB-C PD adapter output stages requiring stable component supply and long-term lifecycle support.
Supply support for SRT110 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 SRT110 belongs to TSC's AEC-Q101-qualified Schottky rectifier family designed specifically for high-reliability, high-efficiency power conversion in thermally demanding environments.
FAQ
What is the maximum junction temperature rating for the SRT110?
The SRT110 has a maximum junction temperature (TJ) rating of +150°C, validated across its full operating voltage range. This rating enables reliable operation in under-hood automotive applications and enclosed industrial power supplies where ambient temperatures exceed +85°C. Derating curves in the datasheet specify allowable forward current reduction above +25°C ambient.
Is the SRT110 pin-compatible with other parts in the SRT12–SRT115 series?
Yes-the SRT110 shares identical TS-1 package dimensions, anode/cathode terminal layout, and polarity marking (cathode band) with all SRT12–SRT115 variants. This allows direct substitution within the same voltage grade group when thermal and electrical margins permit, though forward voltage and leakage differ per voltage rating.
Does the SRT110 meet automotive reliability standards?
The base SRT110 is not AEC-Q101 qualified, but its variant SRT110H is fully AEC-Q101 certified for automotive applications. The SRT110H undergoes stress testing including HTOL, TC, UHAST, and mechanical shock per AEC-Q101 Rev D, with full qualification data available upon request from Taiwan Semiconductor.
What is the typical junction capacitance of the SRT110 and why does it matter?
The SRT110 exhibits 28 pF typical junction capacitance at 1 MHz and 4 V reverse bias. This low value reduces high-frequency switching losses and minimizes voltage overshoot/ringing in fast-switching topologies like active clamp flyback or LLC resonant converters, directly improving EMI performance and gate drive stability.
How is polarity identified on the SRT110 package?
Polarity on the SRT110 is indicated by a molded cathode band on the TS-1 case-consistent with industry-standard Schottky rectifier marking. The banded end is the cathode terminal; the opposite end is the anode. This marking aligns with IPC-7351B land pattern recommendations and eliminates orientation errors during automated placement.
SRT110 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- T-18, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 100 µA @ 100 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TS-1
- Operating Temperature - Junction:
- -55°C ~ 150°C
SRT110 FAQ
1.How can I place an order for SRT110 through Aetrix?
Please submit a Request for Quotation (RFQ) for SRT110 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 SRT110 reliable?
The price and inventory of SRT110 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SRT110 is usually 5 days.
3.What payment methods are accepted for SRT110?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SRT110 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SRT110?
SRT110 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SRT110 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 SRT110?
For technical support, including SRT110 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SRT110 requirements.
6.How does Aetrix verify that SRT110 is sourced from the original manufacturer or authorized distributors?
All SRT110 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 SRT110 meets industry standards.
7.What is the process for return or replacement of SRT110?
All SRT110 units undergo pre-shipment inspection (PSI). If there is an issue with SRT110, 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 SRT110 part is unused and in its original packaging.
Return procedure for SRT110:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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