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Taiwan Semiconductor Corporation SRT14 R0G
- Part No.:
- SRT14 R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- T-18, Axial
- Datasheet:
-
SRT14 R0G.pdf
- Description:
- DIODE SCHOTTKY 40V 1A TS-1
- Quantity:
- Payment:
- Shipping:
Inventory:8,579
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Product details
Overview
SRT14 R0G from Taiwan Semiconductor is a 1 A, 40 V repetitive peak reverse voltage Schottky barrier rectifier in TS-1 package, featuring low forward voltage drop (0.55 V at 1 A, 25°C), high surge current capability (25 A), and AEC-Q101 qualification for automotive-grade reliability. It serves as a primary output rectifier in compact DC-DC converters requiring high efficiency and low power loss.
For engineers reviewing the SRT14 R0G datasheet, SRT14 R0G pinout, SRT14 R0G application, or SRT14 R0G equivalent, key selection criteria include its 40 V VRRM, 0.55 V forward voltage at rated current, 125°C maximum junction temperature, TS-1 package thermal resistance (50°C/W), and cathode-band polarity marking - all critical for SMPS layout, thermal design, and automotive compliance validation.
Technical Context
The SRT14 R0G is a single-die Schottky rectifier optimized for high-frequency switching applications. Its guard ring structure provides overvoltage protection, while pure tin-plated leads ensure solderability per J-STD-002 and whisker resistance per JESD 201 Class 2.
Designed for operation up to 125°C junction temperature, it delivers 500 µA max reverse leakage at 25°C and 10 mA at 100°C under rated 40 V reverse bias. Junction capacitance is 110 pF at 1 MHz and 4.0 V, supporting fast switching transitions with minimal capacitive loading.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum non-repetitive reverse voltage the device blocks without breakdown; defines usable input/output voltage range in DC-DC topologies |
| IF | 1 A continuous - Rated average forward current; determines minimum trace width and heatsinking in PCB layout |
| VF | 0.55 V @ 1 A, 25°C - Low conduction loss directly improves system efficiency and reduces thermal stress on adjacent components |
| IFSM | 25 A @ 8.3 ms - Withstands transient inrush currents during startup or fault conditions without failure |
| TJ max | 125°C - Enables operation in under-hood automotive environments and sealed industrial enclosures without derating |
| RθJA | 50°C/W - Thermal resistance from junction to ambient; used to calculate temperature rise with known power dissipation |
| CJ | 110 pF @ 1 MHz, 4.0 V - Limits high-frequency displacement current and affects EMI filter design in switching nodes |
Pinout & Package
TS-1 package: surface-mount, single-anode/single-cathode configuration with cathode indicated by molded band; lead-free, RoHS-compliant, UL 94V-0 molding compound; weight ≈ 0.200 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node or ground return); must be routed with low-inductance path for high di/dt |
| Cathode | Forward current exit point | Marked with band; connects to output rail; polarity error causes catastrophic short in buck or flyback outputs |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TC, HAST, and UHAST - enables use in ADAS and infotainment power rails |
| Guard ring structure | Enhances edge termination robustness against voltage transients and localized electric field crowding - improves long-term reliability in noisy 12 V/24 V systems |
| Low VF (0.55 V) | Reduces conduction loss by ~30% vs. comparable 40 V Si PN rectifiers - directly increases light-load efficiency in USB-PD and PoE adapters |
| Pure tin plating | Ensures consistent wetting and intermetallic formation during reflow; eliminates whisker risk in high-reliability industrial control modules |
| Halogen-free (IEC 61249-2-21) | Meets environmental compliance for export to EU, Japan, and China; avoids corrosive halogen gas release during board assembly or end-of-life incineration |
Applications
| Automotive DC-DC Converters | USB-C Power Adapters |
|---|---|
Use Scenario: Step-down conversion from 12 V battery to 5 V/9 V/15 V rails for infotainment head units and telematics modules. IC Role / Device Role / Timing Role: Output synchronous rectifier replacing MOSFETs in secondary-side regulation; conducts during low-side switch conduction phase. Use Value: 0.55 V VF minimizes heat generation in confined under-dash spaces; AEC-Q101 qualification ensures 15-year operational life at 125°C ambient. | Use Scenario: Compact 30 W–65 W wall adapters delivering variable USB-PD output voltages. IC Role / Device Role / Timing Role: Secondary-side freewheeling diode in flyback or active-clamp forward topologies. Use Value: 110 pF junction capacitance limits ringing and EMI emissions; TS-1 footprint supports high-density PCB layouts with minimal board area. |
| Industrial IoT Gateways | LED Driver Power Supplies |
Use Scenario: Isolated 24 V input to 3.3 V/5 V logic supply in DIN-rail mounted edge controllers. IC Role / Device Role / Timing Role: Primary output rectifier in quasi-resonant flyback converter operating at 65–130 kHz. Use Value: 25 A IFSM withstands repeated cold-start surges; 125°C TJ rating supports fanless operation in sealed enclosures. | Use Scenario: Constant-current LED driver for commercial lighting with 36 V string voltage. IC Role / Device Role / Timing Role: Output rectifier in buck-derived constant-current topology with PWM dimming. Use Value: Low VF maintains stable current regulation across line and load variations; RoHS/halogen-free compliance meets global lighting safety standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB140-TB | Same 40 V VRRM, 1 A IF, but TO-277 package; VF = 0.52 V (slightly lower), RθJA = 65°C/W (higher thermal resistance) | TO-277 requires larger pad area and lacks AEC-Q101 qualification; unsuitable for automotive under-hood use | Select SB140-TB only for cost-sensitive industrial adapters where thermal margin exceeds 15°C and automotive qualification is unnecessary |
| SS14-E3/57T | Same TS-1 package, 40 V VRRM, 1 A IF, but VF = 0.54 V; not AEC-Q101 qualified; IR = 500 µA @ 25°C (identical) | Lacks automotive stress testing; suitable for consumer-grade power supplies but not for automotive or industrial safety-critical systems | Choose SS14-E3/57T for non-automotive designs where full AEC-Q101 validation is not required and cost is prioritized over long-term reliability assurance |
Compared with SB140-TB and SS14-E3/57T, the SRT14 R0G uniquely combines AEC-Q101 qualification, TS-1 footprint, and 50°C/W thermal resistance - making it the only option among the three validated for automotive under-hood deployment with minimal thermal derating.
Availability
SRT14 R0G is available at Aetrix Electronics and suitable for automotive DC-DC converters, USB-C power adapters, and industrial IoT gateways requiring stable component supply, long-lifecycle support, and certified automotive-grade reliability.
Supply support for SRT14 R0G 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 SRT12–SRT115 series was developed specifically for high-efficiency, high-reliability rectification in space-constrained switching power supplies - emphasizing low VF, robust surge handling, and automotive qualification across the voltage range.
FAQ
What is the maximum junction temperature rating for the SRT14 R0G?
The SRT14 R0G has a maximum junction temperature (TJ) of +125°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet (Version I2104). This rating applies under continuous operation at rated current and allows use in automotive under-hood environments when thermal design accounts for its 50°C/W junction-to-ambient resistance. The SRT14 R0G must not exceed this limit to maintain reliability and avoid parametric shift.
Does the SRT14 R0G meet AEC-Q101 qualification?
Yes, the SRT14 R0G is explicitly AEC-Q101 qualified, as confirmed in the "Features" section and ordering code documentation (R0G suffix denotes green, RoHS-compliant, AEC-Q101 version). This qualification covers high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing - validating its suitability for automotive power electronics where SRT14 R0G is deployed in infotainment and ADAS subsystems.
What is the forward voltage of the SRT14 R0G at 1 A and 25°C?
The forward voltage (VF) of the SRT14 R0G is 0.55 V at 1 A forward current and 25°C junction temperature, per the Electrical Specifications table in the Taiwan Semiconductor datasheet (Version I2104). This value is measured under pulsed conditions (PW = 0.3 ms) and represents typical conduction loss - a key parameter used to calculate power dissipation and thermal rise in the SRT14 R0G during operation.
What package type does the SRT14 R0G use, and what are its key mechanical properties?
The SRT14 R0G uses the TS-1 surface-mount package: a compact, molded epoxy case with pure tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance. Its UL 94V-0 flammability rating, cathode band polarity marking, and approximate weight of 0.200 g are documented in the Mechanical Data section of the SRT14 R0G datasheet (Version I2104).
How does the SRT14 R0G compare to the SRT15 R0G in terms of reverse voltage and forward voltage?
The SRT14 R0G has a 40 V repetitive peak reverse voltage (VRRM) and 0.55 V forward voltage at 1 A/25°C, while the SRT15 R0G is rated for 50 V VRRM and 0.70 V VF under identical conditions. This reflects the family's voltage-scaled design: higher-voltage variants trade lower leakage and higher blocking capability for increased forward conduction loss. Select SRT14 R0G when 40 V margin suffices and lowest VF is prioritized.
SRT14 R0G 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):
- 40 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 550 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 40 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TS-1
- Operating Temperature - Junction:
- -55°C ~ 125°C
SRT14 R0G FAQ
1.How can I place an order for SRT14 R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SRT14 R0G 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 SRT14 R0G reliable?
The price and inventory of SRT14 R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SRT14 R0G is usually 5 days.
3.What payment methods are accepted for SRT14 R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SRT14 R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SRT14 R0G?
SRT14 R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SRT14 R0G 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 SRT14 R0G?
For technical support, including SRT14 R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SRT14 R0G requirements.
6.How does Aetrix verify that SRT14 R0G is sourced from the original manufacturer or authorized distributors?
All SRT14 R0G 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 SRT14 R0G meets industry standards.
7.What is the process for return or replacement of SRT14 R0G?
All SRT14 R0G units undergo pre-shipment inspection (PSI). If there is an issue with SRT14 R0G, 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 SRT14 R0G part is unused and in its original packaging.
Return procedure for SRT14 R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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