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Taiwan Semiconductor Corporation SR106
- Part No.:
- SR106
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
SR106.pdf
- Description:
- DIODE SCHOTTKY 60V 1A DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:3,865
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Product details
Overview
SR106 from Taiwan Semiconductor is a 1 A, 60 V Schottky barrier rectifier in DO-204AL (DO-41) package, featuring 0.70 V forward voltage at 1 A and 5 µA reverse leakage at 100 °C, optimized for high-efficiency DC/DC converters and AC/DC adapters.
For engineers reviewing the SR106 datasheet, SR106 pinout, SR106 application, or SR106 equivalent, key selection criteria include its 60 V repetitive peak reverse voltage, 30 A surge current rating, AEC-Q101 qualification option (SR106H), thermal resistance of 90 °C/W, and cathode-band polarity marking.
Technical Context
This Schottky rectifier uses a single-die construction with guard ring overvoltage protection and pure tin-plated leads compliant with J-STD-002 solderability. Its junction temperature range spans –55 °C to +125 °C (standard) or +150 °C (AEC-Q101 version), supporting operation in thermally constrained power stages.
The device delivers low conduction loss via 0.70 V VF at 1 A and maintains stable blocking performance with 500 µA IR at 25 °C and 5 mA at 100 °C under rated 60 V reverse bias, enabling reliable use in high-frequency switching topologies up to several hundred kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 60 V - Maximum repetitive reverse voltage before breakdown; sets upper limit for DC bus or output rail voltage handling |
| IF | 1 A - Continuous average forward current; defines steady-state power delivery capability in linear or PWM-regulated supplies |
| VF @ 1 A | 0.70 V - Forward voltage drop at rated current; directly determines conduction loss (0.7 W per device at 1 A) |
| IFSM | 30 A - Non-repetitive surge current capacity; supports inrush and transient overload without failure |
| TJ max | 125 °C - Maximum operating junction temperature; constrains thermal design margin in enclosed or high-ambient environments |
| RθJA | 90 °C/W - Junction-to-ambient thermal resistance; used to calculate temperature rise under given power dissipation |
Pinout & Package
Package: DO-204AL (DO-41), axial leaded, epoxy-molded case with UL 94V-0 rating and cathode band polarity indicator. Weight: 0.330 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter or transformer secondary center-tap) |
| Cathode | Forward current exit point | Connected to output rail or filter capacitor; marked by visible band on body |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Enhances ruggedness against transient overvoltage events without requiring external snubbers |
| AEC-Q101 qualification option | Enables use in automotive power modules where reliability under temperature cycling and vibration is mandated |
| Low VF / high efficiency | Reduces conduction losses by ~30% vs. comparable PN-junction rectifiers, improving system thermal profile |
| Pure tin plating | Ensures consistent solder wetting and long-term intermetallic stability in reflow and wave soldering processes |
Applications
| Server Power Supply | USB-C PD Adapter |
|---|---|
Use Scenario: Secondary-side synchronous rectification in 100–200 W isolated flyback or LLC resonant converters. IC Role / Device Role / Timing Role: Uncontrolled Schottky rectifier replacing MOSFETs in cost-sensitive designs where gate drive complexity must be avoided. Use Value: Delivers 0.70 V VF at 1 A to minimize conduction loss while maintaining compatibility with standard DO-41 PCB footprints. | Use Scenario: Output rectification in compact 65 W USB-C power adapters operating at 100–200 kHz switching frequency. IC Role / Device Role / Timing Role: High-frequency freewheeling diode in quasi-resonant flyback topology. Use Value: Enables >90% efficiency at light load due to low 500 µA IR at 25 °C and fast recovery inherent to Schottky architecture. |
| Industrial DC/DC Converter | Automotive Infotainment Power Rail |
Use Scenario: Input or output rectification in 24 V input industrial DC/DC modules with wide ambient temperature range (–40 to +85 °C). IC Role / Device Role / Timing Role: Primary unidirectional current path in non-isolated buck-derived topologies. Use Value: Sustains 5 mA reverse leakage at 100 °C, ensuring stable regulation without thermal runaway under full-load conditions. | Use Scenario: 12 V auxiliary rail conditioning in head unit power management, exposed to automotive temperature cycling and vibration. IC Role / Device Role / Timing Role: AEC-Q101-qualified rectifier (SR106H variant) providing robust reverse-bias blocking during load dump transients. Use Value: Guard ring and 30 A IFSM withstand ISO 7637-2 pulse 5a surges without degradation. |
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-1EQH06-M3/5AT | Same DO-41 package, 1 A / 60 V, VF = 0.72 V, IR = 500 µA @ 25 °C, no AEC-Q101 option | Lacks automotive qualification; suitable for commercial-grade adapters and open-frame SMPS | Select when AEC-Q101 compliance is not required and Vishay supply chain preference applies |
| ON Semiconductor SB160 | DO-41, 1 A / 60 V, VF = 0.72 V, IR = 500 µA @ 25 °C, TJ max = 125 °C, no AEC-Q101 version | Identical thermal and electrical specs but no automotive qualification path; RoHS-compliant only | Choose for cost-sensitive consumer power supplies where qualification traceability is not mandated |
Compared with VS-1EQH06-M3/5AT and SB160, SR106 offers identical core ratings but uniquely supports AEC-Q101 qualification (as SR106H), making it the only choice among the three for automotive infotainment or body control module power stages requiring certified reliability.
Availability
SR106 is available at Aetrix Electronics and suitable for switching mode power supplies, USB-C PD adapters, and industrial DC/DC converters requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SR106 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 power and signal conditioning markets since 1979.
The SR102–SR115 series was designed specifically for high-efficiency, cost-optimized AC/DC and DC/DC power conversion across consumer, industrial, and automotive segments, emphasizing ruggedness, thermal stability, and manufacturability in standard through-hole packages.
FAQ
What is the maximum junction temperature rating for SR106?
The SR106 has a maximum junction temperature (TJ max) of +125 °C under standard qualification. This rating applies to the base SR106 part; the AEC-Q101 qualified variant SR106H extends TJ max to +150 °C. Thermal design must ensure that power dissipation-calculated from VF × IF and RθJA-keeps actual junction temperature below this limit across all operating conditions.
Does SR106 have AEC-Q101 qualification?
The base SR106 part is not AEC-Q101 qualified; however, the SR106H variant-identifiable by the "H" suffix in the ordering code-is fully AEC-Q101 qualified. This qualification covers temperature cycling, mechanical shock, humidity testing, and high-temperature operating life, making SR106H suitable for automotive power modules where reliability under harsh environmental stress is mandatory.
What is the forward voltage of SR106 at 1 A and 25 °C?
The SR106 exhibits a typical forward voltage (VF) of 0.70 V at 1 A and 25 °C, measured under pulsed conditions (PW = 0.3 ms). This value is confirmed in the Electrical Specifications table of the G2104 datasheet and represents the conduction loss baseline for efficiency calculations in power stage design using SR106.
How is polarity indicated on the SR106 package?
Polarity on the SR106 is indicated by a cathode band-a visible painted or molded stripe near one end of the DO-204AL (DO-41) package. The terminal adjacent to this band is the cathode; the opposite lead is the anode. This marking aligns with JEDEC-standard DO-41 orientation and ensures correct placement during manual or automated assembly.
What packaging options are available for SR106?
SR106 is supplied in two standard packaging formats: 5,000 units per tape-and-reel (ordering code SR106) and 3,000 units per ammo box (ordering code SR106A0G). Both use the DO-204AL (DO-41) package. Tape-and-reel is recommended for automated pick-and-place; ammo box suits manual or semi-automated prototyping and low-volume production.
SR106 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 60 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 700 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 60 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
- Operating Temperature - Junction:
- -55°C ~ 150°C
SR106 FAQ
1.How can I place an order for SR106 through Aetrix?
Please submit a Request for Quotation (RFQ) for SR106 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 SR106 reliable?
The price and inventory of SR106 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SR106 is usually 5 days.
3.What payment methods are accepted for SR106?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SR106 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SR106?
SR106 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SR106 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 SR106?
For technical support, including SR106 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SR106 requirements.
6.How does Aetrix verify that SR106 is sourced from the original manufacturer or authorized distributors?
All SR106 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 SR106 meets industry standards.
7.What is the process for return or replacement of SR106?
All SR106 units undergo pre-shipment inspection (PSI). If there is an issue with SR106, 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 SR106 part is unused and in its original packaging.
Return procedure for SR106:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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