My Inquiry
My Account
Taiwan Semiconductor Corporation SR2020PTH
- Part No.:
- SR2020PTH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-247-3
- Datasheet:
-
SR2020PTH.pdf
- Description:
- DIODE ARR SCHOTT 20V 20A TO247AD
- Quantity:
- Payment:
- Shipping:
Inventory:9,607
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SR2020PTH from Taiwan Semiconductor is a 20A, 20V AEC-Q101-qualified Schottky barrier rectifier in TO-247AD (TO-3P) package, featuring 0.55V forward voltage at 10A/25°C, 200A surge capability, and 1.5°C/W junction-to-case thermal resistance. It serves as a high-efficiency output rectifier in automotive-grade SMPS and DC-DC converters.
For engineers reviewing the SR2020PTH datasheet, SR2020PTH pinout, SR2020PTH application, or SR2020PTH equivalent, key selection criteria include its AEC-Q101 qualification, low VF at high current, dual-die thermal performance, and UL Recognized (E-326243) compliance for safety-critical power systems.
Technical Context
This device implements a single-anode, dual-cathode Schottky structure with guard ring overvoltage protection and matte tin-plated leads compliant with J-STD-002 solderability. Its 125°C maximum junction temperature rating (with derating above 25°C ambient) supports operation in thermally constrained automotive and industrial enclosures.
The TO-247AD package enables direct heatsink mounting with ≤1.13 N·m torque, while its 5.6g mass and UL 94V-0 molding compound meet mechanical robustness requirements for vibration-prone environments such as vehicle power supplies and industrial adapters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 20 V - Maximum repetitive reverse voltage; defines safe blocking range in low-voltage DC-DC outputs |
| IF | 20 A - Continuous forward current; supports sustained 20A load without forced cooling in typical adapter designs |
| IFSM | 200 A - Non-repetitive surge current (8.3ms half-sine); handles inrush and transient overload in SMPS startup |
| VF @ 10A, 25°C | 0.55 V - Low conduction loss per diode; reduces power dissipation and improves system efficiency vs. silicon rectifiers |
| RθJC | 1.5 °C/W - Junction-to-case thermal resistance; enables predictable thermal design with standard heatsinks |
| TJ max | 125 °C - Maximum operating junction temperature; requires thermal derating above 25°C ambient per Fig.1 curve |
| IR @ 25°C | 500 µA - Reverse leakage per diode at rated VR; ensures minimal standby power loss in low-power modes |
Pinout & Package
Package: TO-247AD (TO-3P), 3-terminal through-hole case with isolated tab (anode), cathode 1, and cathode 2. Mounting hole accepts M3 screw; tab is electrically connected to anode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Tab (Case) | Anode | Primary current input terminal; electrically tied to internal die anode; requires isolation from heatsink unless system ground referenced |
| Lead 1 | Cathode 1 | First output path; used in dual-output or parallel configurations; shares common anode with Lead 2 |
| Lead 2 | Cathode 2 | Second independent output path; enables dual-channel rectification or redundancy without external splitting |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive power electronics including engine control modules and infotainment power rails |
| Guard ring structure | Prevents premature edge breakdown under voltage transients, improving reliability in noisy 12V/24V systems |
| Matte tin-plated leads | Ensures consistent solder wetting and long-term intermetallic stability per J-STD-002 Class 2 whisker test |
| UL Recognition E-326243 | Confirms flammability (UL 94V-0), electrical insulation, and construction safety for end-product certification |
| Dual-die configuration | Provides two independent cathodes sharing one anode-enables dual-rail outputs or current sharing without external diodes |
Applications
| Automotive DC-DC Converter | Industrial Adapter |
|---|---|
Use Scenario: Step-down conversion from 12V/24V battery to 3.3V/5V logic rails in ADAS camera modules. IC Role / Device Role / Timing Role: Output rectifier in synchronous or asynchronous buck converter topology. Use Value: Low 0.55V VF minimizes conduction loss at 10–15A loads, extending thermal margin and enabling compact heatsink design. | Use Scenario: Universal-input AC-DC adapter delivering 20A at 12V for factory automation controllers. IC Role / Device Role / Timing Role: Secondary-side Schottky rectifier in LLC or flyback-derived topologies. Use Value: 200A IFSM withstands repeated cold-start surges; AEC-Q101 grade assures long-term reliability under thermal cycling. |
| Monitor Power Supply | TV Backlight Inverter |
Use Scenario: Auxiliary 12V/20A rail generation in commercial LCD monitor SMPS units. IC Role / Device Role / Timing Role: Main output rectifier feeding bulk capacitor and post-regulation stage. Use Value: Dual-cathode layout allows split-current paths to reduce trace heating and improve PCB current distribution. | Use Scenario: High-current rectification in CCFL or LED backlight inverters requiring stable 20A DC output. IC Role / Device Role / Timing Role: Bridge or center-tap rectifier in resonant inverter secondary side. Use Value: 1.5°C/W RθJC enables direct heatsink attachment for continuous 20A operation without fan cooling. |
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-20BQ020-M3 | Same 20V VRRM, 20A IF, TO-247AC package; VF = 0.52V @ 10A but not AEC-Q101 qualified | Lacks automotive qualification; suitable for industrial/commercial only | Select when AEC-Q101 is not required and lower VF is prioritized |
| ON Semiconductor MUR2020CTG | 20A, 200V ultrafast recovery diode in TO-220AB; VF = 0.95V @ 10A, higher switching loss | Higher VF and slower recovery increase conduction and switching losses in high-frequency SMPS | Choose only if Schottky limitations (leakage, temp derating) preclude SR2020PTH use |
Compared with VS-20BQ020-M3 and MUR2020CTG, SR2020PTH uniquely combines AEC-Q101 qualification, 0.55V VF, and dual-cathode flexibility-making it optimal for thermally demanding, safety-certified automotive and industrial power supplies where reliability and efficiency are co-prioritized.
Availability
SR2020PTH is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial adapters, and monitor power supplies requiring stable component supply with full AEC-Q101 traceability and UL recognition.
Supply support for SR2020PTH 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 rectifiers, TVS devices, and MOSFETs for industrial and automotive markets.
The SR20xxPT series was developed to deliver high-current Schottky rectification with automotive-grade reliability, targeting next-generation power supplies where low VF, surge robustness, and qualification compliance are mandatory.
FAQ
What is the maximum junction temperature rating for SR2020PTH?
The SR2020PTH has a maximum junction temperature (TJ) of 125°C under continuous operation. Derating is required above 25°C ambient temperature, as shown in Fig.1 of the datasheet. This limit ensures reliable operation in automotive under-hood and industrial enclosure environments where thermal management is constrained.
Is SR2020PTH pin-compatible with other SR20xxPT variants?
Yes, all SR20xxPT and SR20xxPTH parts-including SR2020PTH-share identical TO-247AD (TO-3P) mechanical dimensions, pinout, and terminal assignment. Voltage ratings differ across the family (20V to 150V), but physical mounting and PCB layout remain unchanged for drop-in replacement within the same voltage class.
Does SR2020PTH support dual-output configurations?
Yes, SR2020PTH uses a dual-die configuration with one shared anode (tab) and two independent cathodes (Leads 1 and 2). This allows simultaneous rectification of two separate output rails or current sharing between parallel paths-reducing component count versus using two discrete Schottky diodes.
What is the reverse leakage current specification for SR2020PTH at 100°C?
At TJ = 100°C and rated reverse voltage (20V), SR2020PTH exhibits a maximum reverse current (IR) of 15 mA per diode. This value is confirmed in the Electrical Specifications table and reflects typical behavior for low-VR Schottky devices operating near thermal limits.
How does the AEC-Q101 qualification impact SR2020PTH's use in non-automotive applications?
The AEC-Q101 qualification of SR2020PTH provides enhanced process control, extended lifetime testing, and failure mode analysis-benefiting any high-reliability application. While not required outside automotive, it delivers measurable improvements in thermal cycling endurance, humidity resistance, and long-term parametric stability for industrial and medical-adjacent power systems.
SR2020PTH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-247-3
- Packaging:
- Tube
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 20 V
- Current - Average Rectified (Io) (per Diode):
- 20A
- Voltage - Forward (Vf) (Max) @ If:
- 550 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 20 V
- Operating Temperature - Junction:
- -55°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-247AD (TO-3P)
SR2020PTH FAQ
1.How can I place an order for SR2020PTH through Aetrix?
Please submit a Request for Quotation (RFQ) for SR2020PTH 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 SR2020PTH reliable?
The price and inventory of SR2020PTH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SR2020PTH is usually 5 days.
3.What payment methods are accepted for SR2020PTH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SR2020PTH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SR2020PTH?
SR2020PTH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SR2020PTH 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 SR2020PTH?
For technical support, including SR2020PTH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SR2020PTH requirements.
6.How does Aetrix verify that SR2020PTH is sourced from the original manufacturer or authorized distributors?
All SR2020PTH 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 SR2020PTH meets industry standards.
7.What is the process for return or replacement of SR2020PTH?
All SR2020PTH units undergo pre-shipment inspection (PSI). If there is an issue with SR2020PTH, 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 SR2020PTH part is unused and in its original packaging.
Return procedure for SR2020PTH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SR2020PTH Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
-
BAT54CLT1G
onsemi
-
BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
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…
