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Taiwan Semiconductor Corporation SRT12 R0G
- Part No.:
- SRT12 R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- T-18, Axial
- Datasheet:
-
SRT12 R0G.pdf
- Description:
- DIODE SCHOTTKY 20V 1A TS-1
- Quantity:
- Payment:
- Shipping:
Inventory:9,223
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Product details
Overview
SRT12 R0G from Taiwan Semiconductor is a 1 A, 20 V 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 option. It serves as a primary output rectifier in compact DC/DC converters and low-voltage AC/DC adapters.
For engineers reviewing the SRT12 R0G datasheet, SRT12 R0G pinout, SRT12 R0G application, or SRT12 R0G equivalent, key selection criteria include its 20 V repetitive peak reverse voltage, 125°C maximum junction temperature, TS-1 mechanical outline, cathode-band polarity marking, and RoHS/halogen-free compliance for automotive and industrial power supplies.
Technical Context
The SRT12 R0G is a single-die, unidirectional Schottky rectifier optimized for high-efficiency, low-voltage switching applications. Its guard ring structure provides overvoltage protection, and pure tin-plated leads meet J-STD-002 solderability and JESD201 Class 2 whisker resistance requirements.
Thermal performance is defined by a junction-to-ambient thermal resistance of 50°C/W under standard mounting conditions. The device operates across a junction temperature range of –55°C to +125°C and supports surge currents up to 25 A (8.3 ms half-sine) without degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 20 V - Maximum repetitive reverse blocking voltage; sets upper limit for DC bus or output rail voltage in SMPS designs |
| IF | 1 A continuous - Rated average forward current; defines steady-state conduction capability at 125°C ambient with adequate heatsinking |
| VF | 0.55 V max at 1 A, 25°C - Low conduction loss enables >92% efficiency in 3.3–5 V output converters |
| IFSM | 25 A - Peak non-repetitive surge rating; withstands inrush and transient overloads in adapter and converter inputs |
| TJ max | 125°C - Maximum operating junction temperature; allows use in sealed enclosures or high-ambient industrial environments |
| CJ | 110 pF at 1 MHz, 4 V - Junction capacitance impacts high-frequency switching noise and EMI filter design in >100 kHz topologies |
Pinout & Package
TS-1 package: surface-mount, single-ended anode-cathode configuration with cathode band marking; 0.200 g mass; UL 94V-0 molding compound; lead-free, halogen-free construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input current terminal | Connected to transformer secondary or switch node; must handle full load current and high di/dt transients |
| Cathode | Output current terminal | Connected to output capacitor and load; polarity marked by visible band; low-inductance layout critical for EMI control |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Enhances ruggedness against voltage transients and improves long-term reliability in noisy automotive power rails |
| AEC-Q101 qualified version available | Validated for automotive-grade stress testing including temperature cycling, HTRB, and ESD; supports Tier-1 BOMs |
| Pure tin-plated leads | Ensures consistent solder wetting and intermetallic formation per J-STD-002; eliminates lead-free assembly defects |
| Junction-to-ambient RθJA = 50°C/W | Enables direct PCB copper pour thermal relief without heatsinks in ≤1 W dissipation applications |
Applications
| USB-C PD Adapters | Industrial 5 V DC/DC Modules |
|---|---|
Use Scenario: Secondary-side synchronous rectification replacement in 20–30 W USB-C power adapters operating at 100–300 kHz. IC Role / Device Role / Timing Role: Uncontrolled Schottky rectifier providing low-loss, fast-recovery output conduction path. Use Value: 0.55 V forward drop reduces conduction loss by ~35% vs. standard PN diodes, improving thermal margin and enabling smaller output capacitors. | Use Scenario: Output rectification in isolated 5 V, 1 A industrial DC/DC converters used in PLC I/O modules and sensor interfaces. IC Role / Device Role / Timing Role: Primary output rectifier handling continuous 1 A load with intermittent surges up to 25 A. Use Value: 125°C junction rating and TS-1 package allow operation in 70°C ambient industrial enclosures without derating. |
| Automotive Infotainment Power Rails | Low-Noise Medical Sensor Supplies |
Use Scenario: 12 V input pre-regulator stage in head unit power management supplying 5 V/3.3 V logic rails. IC Role / Device Role / Timing Role: Input rectifier in buck-derived front-end; handles cold-crank and load-dump transients. Use Value: Guard ring and AEC-Q101 qualification ensure robustness against 12 V battery line disturbances and thermal cycling. | Use Scenario: Auxiliary supply rectification in portable ECG and pulse oximeter devices requiring ultra-low EMI and stable 3.3 V bias. IC Role / Device Role / Timing Role: Low-noise, low-capacitance (110 pF) rectifier minimizing high-frequency coupling into analog signal paths. Use Value: Minimal junction capacitance avoids RF injection into sensitive analog front-ends while maintaining high efficiency. |
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-1EQH02-M3/5A | Same 20 V VRRM, 1 A IF, but TO-277 package; VF = 0.52 V typical; RθJA = 65°C/W | Higher thermal resistance requires larger copper area; not AEC-Q101 qualified | Select when footprint flexibility exists and automotive qualification is not required |
| ON Semiconductor SB120 | 20 V VRRM, 1 A IF, DO-214AA package; VF = 0.54 V max; TJ max = 125°C; no AEC-Q101 option | Larger footprint and higher profile; lacks guard ring and halogen-free certification | Choose for cost-sensitive consumer adapters where TS-1 height constraint is not critical |
Compared with VS-1EQH02-M3/5A and SB120, the SRT12 R0G offers superior thermal performance (50°C/W vs. ≥65°C/W), AEC-Q101 availability, and halogen-free compliance-making it preferred for space-constrained, thermally demanding, or automotive-qualified designs.
Availability
SRT12 R0G is available at Aetrix Electronics and suitable for USB-C PD adapters, industrial 5 V DC/DC modules, and automotive infotainment power rails requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for SRT12 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 semiconductor manufacturer specializing in discrete power devices, including rectifiers, MOSFETs, and TVS diodes, with global distribution and AEC-Q101 validation capability.
The SRT12 R0G belongs to TSC's SRT series of Schottky barrier rectifiers engineered for high-efficiency, low-voltage switching power supplies in automotive, industrial, and consumer applications.
FAQ
What is the maximum junction temperature rating for the SRT12 R0G?
The SRT12 R0G has a maximum junction temperature (TJ) of +125°C, verified per absolute maximum ratings in the official datasheet. This rating applies under continuous forward conduction at rated current and defines the upper thermal limit for reliable operation. Exceeding 125°C risks parametric shift and accelerated degradation. Derating curves in the SRT12 R0G datasheet show allowable current reduction above 25°C ambient to maintain safe junction temperatures.
Does the SRT12 R0G have AEC-Q101 qualification?
The base SRT12 R0G is not AEC-Q101 qualified; however, the AEC-Q101 variant is designated as SRT12H or SRT12HA0G per TSC's ordering information. The "H" suffix explicitly indicates AEC-Q101 qualification, including stress testing for temperature cycling, high-temperature reverse bias, and ESD. Always verify the full part number suffix when selecting for automotive applications.
What does the "R0G" suffix mean in SRT12 R0G?
The "R0G" suffix in SRT12 R0G indicates green (halogen-free) molding compound per IEC 61249-2-21 and RoHS-compliant packaging. "R" denotes reel packaging (5,000 pcs/tape & reel), and "0G" specifies halogen-free material. This suffix aligns with TSC's standardized ordering code format shown in the SRT12 R0G datasheet Version I2104, page 3.
What is the forward voltage drop of the SRT12 R0G at 1 A and 100°C junction temperature?
The SRT12 R0G forward voltage (VF) is specified as 0.55 V maximum at 1 A and 25°C. At 100°C junction temperature, the datasheet does not provide a direct VF value for SRT12 R0G; however, typical Schottky behavior shows VF decreases ~2 mV/°C. Thus, VF at 100°C is estimated near 0.41 V, but design margins should rely on the 25°C max spec unless application-specific characterization is performed on the SRT12 R0G.
Is the SRT12 R0G pin-compatible with other SRT-series rectifiers like SRT13 or SRT14?
Yes-the entire SRT12 through SRT115 series shares identical TS-1 package dimensions, pinout, and mechanical outline. All variants feature the same anode/cathode terminal configuration and cathode band marking. Therefore, SRT12 R0G is mechanically and electrically pin-compatible with SRT13, SRT14, and other members of the family, enabling voltage-rating scalability without PCB layout changes.
SRT12 R0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- T-18, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 20 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 @ 20 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TS-1
- Operating Temperature - Junction:
- -55°C ~ 125°C
SRT12 R0G FAQ
1.How can I place an order for SRT12 R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SRT12 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 SRT12 R0G reliable?
The price and inventory of SRT12 R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SRT12 R0G is usually 5 days.
3.What payment methods are accepted for SRT12 R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SRT12 R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SRT12 R0G?
SRT12 R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SRT12 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 SRT12 R0G?
For technical support, including SRT12 R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SRT12 R0G requirements.
6.How does Aetrix verify that SRT12 R0G is sourced from the original manufacturer or authorized distributors?
All SRT12 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 SRT12 R0G meets industry standards.
7.What is the process for return or replacement of SRT12 R0G?
All SRT12 R0G units undergo pre-shipment inspection (PSI). If there is an issue with SRT12 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 SRT12 R0G part is unused and in its original packaging.
Return procedure for SRT12 R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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