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Taiwan Semiconductor Corporation SS115 R3G
- Part No.:
- SS115 R3G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SS115 R3G.pdf
- Description:
- DIODE SCHOTTKY 150V 1A DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2
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Product details
Overview
SS115 R3G from Taiwan Semiconductor is a 1A, 150V Schottky barrier surface-mount rectifier in DO-214AC (SMA) package, optimized for high-efficiency DC/DC conversion with 0.95V forward voltage at 1A and 25°C, 100μA reverse leakage at rated VRRM, and 40A non-repetitive surge capability. It serves as a primary output rectifier in compact AC/DC adapters and TV power supplies.
For engineers reviewing the SS115 R3G datasheet, SS115 R3G pinout, SS115 R3G application, or SS115 R3G equivalent, key selection criteria include verified 150V VRRM, thermal resistance (RθJA = 88°C/W), junction temperature rating up to +150°C, cathode-band polarity marking, and RoHS/halogen-free compliance for industrial-grade power designs.
Technical Context
The SS115 R3G implements a single-die Schottky junction with guard ring structure for enhanced overvoltage robustness and meets JESD201 Class 2 whisker resistance. Its 150V peak reverse voltage and 10,000 V/µs critical dV/dt rating support fast-switching topologies in SMPS.
Thermally, it delivers RθJL = 28°C/W to lead and RθJA = 88°C/W in standard PCB mounting, enabling 1A continuous operation up to +125°C ambient when derated per curve Fig.1. Moisture sensitivity level is J-STD-020 Level 1 - no bake required before reflow.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 150 V - maximum repetitive reverse blocking voltage; defines safe operating limit in flyback or buck-derived outputs |
| IF | 1 A - average forward current rating; supports continuous conduction mode in sub-20W DC/DC stages |
| VF @ 1A, 25°C | 0.95 V - forward drop directly impacts conduction loss and thermal rise in high-frequency rectification |
| IR @ 150V, 25°C | 100 µA - low leakage preserves efficiency in standby and light-load conditions |
| IFSM | 40 A - peak surge current handling enables robustness against line transients and startup inrush |
| TJ max | +150 °C - extended junction temperature allows operation in thermally constrained enclosures |
| RθJA | 88 °C/W - thermal resistance determines required copper area and airflow for thermal management |
Pinout & Package
Package: DO-214AC (SMA), surface-mount plastic case with matte tin-plated leads, cathode indicated by band. Weight: 0.060 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input current entry point | Connected to switching node or transformer secondary; must withstand full IF and transient stress |
| Cathode | Output current exit point | Connected to output filter capacitor; polarity band ensures correct orientation during automated placement |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring overvoltage protection | Enables reliable operation under repetitive voltage spikes without avalanche degradation |
| Moisture sensitivity level 1 | Eliminates pre-reflow baking step, reducing manufacturing cost and process complexity |
| High surge current capability (40A) | Withstands 8.3ms half-sine surges common in AC line input and hot-swap events |
| RoHS and halogen-free compliance | Meets global environmental regulations for consumer electronics and display equipment |
Applications
| AC/DC Adapters | TV Power Supplies |
|---|---|
Use Scenario: Secondary-side rectification in 12–24W wall adapters for laptops and peripherals. IC Role / Device Role / Timing Role: Output rectifier replacing conventional PN diodes to reduce conduction loss and improve efficiency. Use Value: 0.95V VF lowers heat generation vs. 1.1V Si diodes, enabling smaller heatsinks and higher power density. | Use Scenario: Main 12V/24V output rectification in LED-backlit LCD TV power boards. IC Role / Device Role / Timing Role: High-reliability freewheeling path in quasi-resonant flyback converters. Use Value: 150V VRRM and 10,000 V/µs dV/dt ensure stable operation under dynamic load steps and EMI stress. |
| Monitor Power Modules | DC/DC Converters |
Use Scenario: Standby and main rail rectification in compact monitor SMPS with tight board space. IC Role / Device Role / Timing Role: Low-profile surface-mount rectifier with SMA footprint for automated assembly. Use Value: DO-214AC package enables high-density layout while maintaining 1A continuous rating at +125°C ambient. | Use Scenario: Synchronous rectifier replacement in isolated 5–12V isolated DC/DC modules. IC Role / Device Role / Timing Role: Uncontrolled rectifier in secondary-side synchronous or non-synchronous topologies. Use Value: 100µA reverse leakage at 150V minimizes standby power loss in energy-efficient designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS115H from Diodes Inc. | Same 150V VRRM, 1A IF, but VF = 0.87V @ 1A/25°C; slightly lower thermal resistance (RθJA = 75°C/W) | Preferred where lower forward drop improves light-load efficiency in battery-powered auxiliary rails | Select SS115H if thermal margin is constrained and 0.08V lower VF justifies sourcing change |
| SB1150 from ON Semiconductor | Identical 150V/1A rating, but VF = 0.92V @ 1A/25°C; JEDEC DO-214AC compliant with same pinout | Validated in automotive-grade reference designs requiring AEC-Q200 alignment (though SS115 R3G is not AEC-rated) | Choose SB1150 only if qualification traceability or automotive supply chain requirements drive selection |
Compared with SS115 R3G, SS115H offers marginally better conduction efficiency and thermal performance, while SB1150 provides stronger qualification pedigree for regulated environments - neither is pin-compatible without validation, and both require review of leakage, surge, and derating curves for exact functional equivalence.
Availability
SS115 R3G is available at Aetrix Electronics and suitable for AC/DC adapters, TV power supplies, and DC/DC converters requiring stable component supply, consistent parametric performance, and RoHS-compliant sourcing.
Supply support for SS115 R3G 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 management and industrial markets since 1979.
The SS115 R3G belongs to TSC's SS1x series of Schottky rectifiers designed specifically for high-efficiency, cost-sensitive switch-mode power supplies in consumer and computing applications.
FAQ
What is the maximum junction temperature rating for SS115 R3G?
The SS115 R3G has a maximum junction temperature (TJ) rating of +150°C, allowing operation in thermally demanding environments such as enclosed TV power supplies or high-ambient industrial DC/DC converters. This rating is confirmed in the Absolute Maximum Ratings table on page 1 of the R2305 datasheet revision, and applies across the full voltage range of the SS1x family including SS115 R3G.
Does SS115 R3G have a specified moisture sensitivity level (MSL)?
Yes, SS115 R3G is rated MSL Level 1 per J-STD-020, meaning it can be stored indefinitely at ≤30°C/60% RH and requires no baking prior to surface-mount reflow. This simplifies manufacturing logistics and reduces risk of popcorning during assembly - a key advantage over higher-MSL discrete rectifiers.
What is the forward voltage of SS115 R3G at 1A and 100°C junction temperature?
The forward voltage of SS115 R3G is 0.85 V at 1A and 100°C junction temperature, as specified in the Electrical Specifications table on page 2 of the R2305 datasheet. This value reflects reduced VF due to positive temperature coefficient behavior typical of Schottky diodes, critical for thermal stability analysis in high-temperature applications.
Is SS115 R3G halogen-free and RoHS compliant?
Yes, SS115 R3G is both halogen-free and RoHS compliant, as explicitly stated in the FEATURES section of the R2305 datasheet. These compliance attributes meet regulatory requirements for consumer electronics sold in EU, China, and other major markets, and are verified through material declarations and third-party testing.
What package type does SS115 R3G use, and what are its key mechanical features?
SS115 R3G uses the DO-214AC (SMA) package, with matte tin-plated leads solderable per J-STD-002, UL 94V-0 molded compound, and cathode polarity indicated by a visible band. Its dimensions (4.60 × 2.83 × 2.30 mm) and suggested pad layout are detailed in the Package Outline Dimensions drawing on page 7 of the R2305 datasheet.
SS115 R3G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 150 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 950 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 150 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 150°C
SS115 R3G FAQ
1.How can I place an order for SS115 R3G through Aetrix?
Please submit a Request for Quotation (RFQ) for SS115 R3G 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 SS115 R3G reliable?
The price and inventory of SS115 R3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SS115 R3G is usually 5 days.
3.What payment methods are accepted for SS115 R3G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SS115 R3G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SS115 R3G?
SS115 R3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SS115 R3G 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 SS115 R3G?
For technical support, including SS115 R3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SS115 R3G requirements.
6.How does Aetrix verify that SS115 R3G is sourced from the original manufacturer or authorized distributors?
All SS115 R3G 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 SS115 R3G meets industry standards.
7.What is the process for return or replacement of SS115 R3G?
All SS115 R3G units undergo pre-shipment inspection (PSI). If there is an issue with SS115 R3G, 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 SS115 R3G part is unused and in its original packaging.
Return procedure for SS115 R3G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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