My Inquiry
My Account
Taiwan Semiconductor Corporation SR1202HR0G
- Part No.:
- SR1202HR0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
SR1202HR0G.pdf
- Description:
- DIODE SCHOTTKY 20V 12A DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:2,395
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SR1202HR0G from Taiwan Semiconductor is a 12A, 20V AEC-Q101-qualified Schottky barrier rectifier in DO-201AD package, featuring 0.55V max forward voltage at 12A/25°C, 320A surge capability, and junction-to-lead thermal resistance of 3°C/W. It serves as primary output rectifier in automotive-grade DC-DC converters.
For engineers reviewing the SR1202HR0G datasheet, SR1202HR0G pinout, SR1202HR0G application, or SR1202HR0G equivalent, key selection factors include its AEC-Q101 qualification, low VF for high-efficiency power conversion, DO-201AD mechanical compatibility, and 150°C maximum junction temperature rating under continuous DC operation.
Technical Context
This Schottky rectifier uses a single-die construction with guard ring structure to enhance overvoltage robustness. Its 20V repetitive peak reverse voltage (VRRM) and 14V RMS reverse voltage rating define its use in low-voltage secondary-side rectification where fast switching and minimal conduction loss are critical.
The device operates across -55°C to +150°C junction temperature range and delivers 55A peak repetitive forward current (IFRM) at f > 15Hz. Thermal performance is characterized by 24°C/W junction-to-ambient resistance, supporting convection-cooled PCB layouts in space-constrained adapters and SMPS designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 20 V - Maximum repetitive reverse blocking voltage; sets upper limit for safe operation in 12–15V output rails |
| IF | 12 A - Continuous DC forward current rating; defines steady-state power delivery capacity |
| VF (max) | 0.55 V @ 12A/25°C - Directly determines conduction loss (P = IF × VF) and thermal load in high-current paths |
| IFSM | 320 A @ 8.3ms - Peak non-repetitive surge current handling; enables survival during startup inrush or transient overload |
| RθJL | 3 °C/W - Junction-to-lead thermal resistance; enables direct heatsinking via PCB copper pour or lead frame contact |
| TJ max | 150 °C - Maximum allowable junction temperature under DC forward bias; constrains thermal design margin |
| IR (max) | 500 µA @ 20V/25°C - Reverse leakage magnitude; impacts standby power and high-impedance sensing accuracy |
Pinout & Package
Package: DO-201AD - Axial-leaded, molded plastic case with cathode band marking; UL 94V-0 rated compound; pure tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential node (e.g., ground or return path); requires adequate copper area for thermal dissipation |
| Cathode | Current exit point during forward conduction; marked by band | Connected to higher-potential node (e.g., output rail); polarity must be observed to prevent reverse breakdown |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive power electronics per stress test requirements including HTOL, TC, HTRB, and UHAST |
| Guard ring structure | Improves edge termination reliability and prevents premature avalanche breakdown under voltage transients |
| Low VF at high IF | 0.55 V max at 12A reduces conduction losses by ~30% vs. comparable 20V Si diodes, improving system efficiency |
| High IFSM | 320A surge rating supports robust operation in systems with large output capacitance or short-circuit events |
| Halogen-free construction | Complies with IEC 61249-2-21; eliminates brominated flame retardants for environmentally regulated end markets |
Applications
| Automotive DC-DC Converters | Industrial SMPS Secondary Rectification |
|---|---|
Use Scenario: 12V-to-5V/3.3V buck converter in ADAS camera module requiring AEC-Q101 compliance and low EMI. IC Role / Device Role / Timing Role: Output synchronous rectifier replacing MOSFETs in cost-sensitive designs; provides fixed VF-based conduction without gate drive complexity. Use Value: Enables >92% efficiency at 10A load while meeting automotive temperature cycling and vibration requirements. | Use Scenario: 24V input, 12V output industrial SMPS powering PLC I/O modules with wide ambient temperature range. IC Role / Device Role / Timing Role: Primary output rectifier handling continuous 12A load; selected for stable VF over -40°C to +85°C ambient. Use Value: Delivers consistent conduction loss across temperature with <0.6V VF drift from -40°C to +125°C junction. |
| USB-C PD Adapters | Telecom Power Supplies |
Use Scenario: 20V output stage in compact 65W USB-C PD adapter targeting UL/EN 62368-1 certification. IC Role / Device Role / Timing Role: Secondary-side rectifier operating at 100kHz switching frequency; leverages fast recovery and low Qrr. Use Value: Reduces reverse recovery loss and EMI generation compared to standard PN diodes, easing filter design. | Use Scenario: -48V telecom rectifier board supplying 12V auxiliary rails for base station control logic. IC Role / Device Role / Timing Role: High-reliability output rectifier deployed in redundant power architecture with hot-swap capability. Use Value: Withstands 320A surge events during hot-insertion and maintains <500µA leakage at full-rated VR for low standby drain. |
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-12EWH02-M3/45 | 20V VRRM, 12A IF, but TO-277 package (surface-mount); VF = 0.52V @ 12A; RθJA = 20°C/W | Requires SMT reflow process and different PCB footprint; better thermal performance on thermally enhanced pads | Preferred when board space is constrained and automated assembly is used; not drop-in compatible with DO-201AD through-hole layout |
| ON Semiconductor SB1220-E3/54 | 20V VRRM, 12A IF, DO-201AD package; VF = 0.58V @ 12A; no AEC-Q101 qualification stated | Lacks automotive qualification; IR = 1mA @ 20V/25°C - 2× higher leakage than SR1202HR0G | Suitable for industrial/commercial adapters where AEC-Q101 is not required and leakage sensitivity is low |
Compared with VS-12EWH02-M3/45 and SB1220-E3/54, SR1202HR0G uniquely combines AEC-Q101 qualification, axial DO-201AD through-hole compatibility, and industry-leading 0.55V VF ceiling - making it optimal for automotive and high-reliability through-hole power supplies where qualification and legacy assembly processes matter.
Availability
SR1202HR0G is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial SMPS, and USB-C PD adapters requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for SR1202HR0G 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, specializing in power devices, protection components, and signal conditioning ICs since 1979.
The SR1202HR0G belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-efficiency, high-reliability secondary-side rectification in automotive and industrial power conversion systems.
FAQ
What is the maximum junction temperature rating for SR1202HR0G?
The SR1202HR0G has a maximum junction temperature (TJ max) of +150°C under DC forward conduction conditions. This rating applies to continuous operation and is validated per JEDEC standards. Derating curves in the official datasheet specify reduced current limits above +125°C ambient to maintain safe TJ. The SR1202HR0G must not exceed this limit to ensure long-term reliability and avoid parametric shift.
Is SR1202HR0G pin-compatible with other parts in the SR1202–SR1204 family?
Yes, SR1202HR0G shares identical DO-201AD package dimensions and axial pinout with SR1203HR0G and SR1204HR0G. All three variants use the same anode/cathode terminal configuration and mechanical outline. However, VRRM differs (20V/30V/40V), so electrical substitution requires verification of reverse voltage margin in the target circuit before using SR1202HR0G as a replacement.
Does SR1202HR0G meet halogen-free and RoHS requirements?
Yes, SR1202HR0G is halogen-free per IEC 61249-2-21 and RoHS compliant. The molding compound contains no brominated or chlorinated flame retardants, and all homogeneous materials satisfy EU Directive 2011/65/EU limits for lead, mercury, cadmium, hexavalent chromium, PBB, and PBDE. Full compliance documentation is available upon request from Taiwan Semiconductor.
What is the forward voltage specification for SR1202HR0G at 12A and 100°C junction temperature?
The SR1202HR0G datasheet specifies VF ≤ 0.55V at 12A and 25°C, but does not provide a guaranteed maximum VF at 100°C. Typical VF increases ~2.2mV/°C; extrapolating yields ~0.70V at 100°C. For design-critical thermal analysis, engineers should use the 0.55V value at 25°C with derating or consult TSC's characterization curves (Fig.4) showing VF vs. IF at elevated temperatures.
How is the "H" suffix in SR1202HR0G interpreted in the ordering code?
The "H" in SR1202HR0G indicates AEC-Q101 qualification per the Taiwan Semiconductor ordering nomenclature. The "R0G" suffix denotes green (halogen-free) compound and tape-and-reel packaging (1,250 units per reel). This distinguishes SR1202HR0G from non-automotive versions like SR1202R0G and confirms full stress-test validation for automotive power applications.
SR1202HR0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-201AD, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 20 V
- Current - Average Rectified (Io):
- 12A
- Voltage - Forward (Vf) (Max) @ If:
- 550 mV @ 12 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 20 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201AD
- Operating Temperature - Junction:
- -50°C ~ 150°C
SR1202HR0G FAQ
1.How can I place an order for SR1202HR0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SR1202HR0G 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 SR1202HR0G reliable?
The price and inventory of SR1202HR0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SR1202HR0G is usually 5 days.
3.What payment methods are accepted for SR1202HR0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SR1202HR0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SR1202HR0G?
SR1202HR0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SR1202HR0G 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 SR1202HR0G?
For technical support, including SR1202HR0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SR1202HR0G requirements.
6.How does Aetrix verify that SR1202HR0G is sourced from the original manufacturer or authorized distributors?
All SR1202HR0G 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 SR1202HR0G meets industry standards.
7.What is the process for return or replacement of SR1202HR0G?
All SR1202HR0G units undergo pre-shipment inspection (PSI). If there is an issue with SR1202HR0G, 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 SR1202HR0G part is unused and in its original packaging.
Return procedure for SR1202HR0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SR1202HR0G Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
