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Taiwan Semiconductor Corporation SS115HR3G
- Part No.:
- SS115HR3G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SS115HR3G.pdf
- Description:
- DIODE SCHOTTKY 150V 1A DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,957
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Product details
Overview
SS115HR3G from Taiwan Semiconductor is a 1 A, 150 V Schottky barrier surface-mount rectifier in DO-214AC (SMA) package, featuring 0.95 V forward voltage at 1 A and 25 °C, 100 µA reverse leakage at rated VR and 25 °C, and 40 A peak surge current capability. It serves as a high-efficiency output rectifier in DC/DC converters and switching power supplies.
For engineers reviewing the SS115HR3G datasheet, SS115HR3G pinout, SS115HR3G application, or SS115HR3G equivalent, key selection criteria include its 150 V repetitive peak reverse voltage, low forward voltage at elevated temperature (0.85 V at 100 °C), junction-to-lead thermal resistance of 28 °C/W, and RoHS-compliant, halogen-free construction for industrial and consumer power systems.
Technical Context
The SS115HR3G implements a single-die Schottky junction optimized for low conduction loss in medium-voltage SMPS outputs. Its 150 V VRRM rating supports universal-input offline adapters and 48 V–60 V bus-derived DC/DC stages, while the guard ring structure enhances ruggedness against transient overvoltage events.
Thermal performance is defined by RθJL = 28 °C/W and RθJA = 88 °C/W, enabling 1 A continuous operation without forced airflow when mounted on standard 1-in² copper. The device operates across –55 °C to +150 °C junction temperature range and meets JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 150 V - Supports 100 VRMS input lines and withstands 150 V transients in 48 V system rails |
| IF | 1 A continuous - Rated for sustained output rectification in compact 5–15 W DC/DC converters |
| VF @ 1 A, 25 °C | 0.95 V - Enables >88% efficiency at light-to-moderate loads in 5–12 V output stages |
| IR @ 150 V, 25 °C | 100 µA - Minimizes standby power loss in energy-efficient adapters and monitors |
| IFSM | 40 A - Withstands cold-start surges and short-circuit recovery in unregulated supplies |
| TJ max | +150 °C - Allows operation in sealed enclosures or high-ambient environments without derating |
| RθJL | 28 °C/W - Permits direct thermal coupling to PCB copper for passive cooling in space-constrained layouts |
Pinout & Package
DO-214AC (SMA) surface-mount package with cathode-indicating band; molded plastic body per UL 94V-0; matte tin-plated leads solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input terminal for forward conduction | Connected to lower-potential side (e.g., transformer secondary center-tap or switch node) |
| Cathode | Output terminal for forward conduction | Connected to output filter capacitor and load; polarity marked by visible band |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Improves dv/dt immunity to 10,000 V/µs and prevents premature avalanche breakdown under line transients |
| Moisture sensitivity level 1 | Eliminates bake requirements prior to reflow, supporting standard SMT assembly without dry-pack handling |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU Directive 2011/65/EU for environmentally regulated end equipment |
| High surge current capability | 40 A IFSM enables robustness against inrush and fault currents without external fusing |
Applications
| Switching Mode Power Supply (SMPS) | DC/DC Converters |
|---|---|
Use Scenario: Primary-side or secondary-side rectification in 20–60 W open-frame AC/DC adapters. IC Role / Device Role / Timing Role: Output rectifier converting high-frequency transformer output to regulated DC. Use Value: 0.95 V VF reduces conduction loss by ~15% vs. comparable 100 V Schottkys, improving full-load efficiency. | Use Scenario: Isolated or non-isolated step-down conversion in telecom and industrial 48 V intermediate bus systems. IC Role / Device Role / Timing Role: Synchronous rectifier replacement in flyback or forward topologies. Use Value: 150 V VRRM accommodates reflected voltage spikes in 48 V input designs without snubber overhead. |
| Monitor Power Supplies | TV Power Sections |
Use Scenario: Standby and main rail rectification in LCD/LED monitor auxiliary power modules. IC Role / Device Role / Timing Role: Low-leakage output diode maintaining <100 µA no-load current. Use Value: 100 µA IR at 150 V ensures compliance with ENERGY STAR® Tier 2 standby power limits. | Use Scenario: Main 12 V/19 V output rectification in LED-backlit TV power boards. IC Role / Device Role / Timing Role: High-reliability rectifier operating continuously at 70–85 °C ambient. Use Value: +150 °C TJ max allows stable operation without thermal throttling in confined chassis layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS115HE3/5BT | Same VRRM, IF, and package; VF = 0.95 V at 25 °C but IR = 200 µA (vs. 100 µA for SS115HR3G) | Higher leakage makes SS115HE3/5BT less suitable for ultra-low-standby designs | Select SS115HR3G where <100 µA reverse current is required at rated VR |
| SB1150-TB | 150 V, 1 A, DO-214AC; VF = 0.87 V at 1 A/25 °C but TJ max = +125 °C (vs. +150 °C) | Limited high-temp operation restricts use in sealed or high-ambient enclosures | Prefer SS115HR3G for applications requiring extended thermal margin above 125 °C |
Compared with SS115HE3/5BT and SB1150-TB, the SS115HR3G delivers superior reverse leakage control and higher junction temperature rating-critical for energy-efficient adapters and thermally constrained TV power supplies-without sacrificing surge robustness or package compatibility.
Availability
SS115HR3G is available at Aetrix Electronics and suitable for switching mode power supplies, DC/DC converters, and monitor power systems requiring stable component supply and long-term production continuity.
Supply support for SS115HR3G 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 Company (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power rectifiers, TVS devices, and MOSFETs since 1979.
The SS115HR3G belongs to TSC's SS1x Schottky rectifier family, engineered for high-efficiency, low-profile AC/DC and DC/DC power conversion in cost-sensitive consumer and industrial applications.
FAQ
What is the maximum junction temperature rating for the SS115HR3G?
The SS115HR3G has a maximum junction temperature (TJ) rating of +150 °C, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet revision R2305. This allows uninterrupted operation in high-ambient environments such as enclosed TV power supplies or sealed industrial DC/DC modules where board temperatures exceed 100 °C. The SS115HR3G maintains specified electrical parameters up to this limit.
Does the SS115HR3G meet RoHS and halogen-free requirements?
Yes, the SS115HR3G is RoHS compliant and halogen-free, as explicitly stated in the "Features" section of the Taiwan Semiconductor SS12–SS115 datasheet (R2305). It satisfies IEC 61249-2-21 for halogen content and EU Directive 2011/65/EU for restricted substances. The device uses green molding compound and matte tin-plated leads, both certified to these standards.
What is the forward voltage of the SS115HR3G at 1 A and 100 °C?
The forward voltage (VF) of the SS115HR3G is 0.85 V at 1 A and 100 °C, per the "ELECTRICAL SPECIFICATIONS" table in the official datasheet (R2305, page 2). This value reflects real-world conduction loss under elevated thermal stress and is critical for calculating efficiency in warm-running power supplies such as those in monitors or set-top boxes.
Is the SS115HR3G suitable for use in automotive applications?
No, the SS115HR3G is not qualified for automotive applications. Taiwan Semiconductor's official documentation states that "The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications," and no AEC-Q101 qualification or automotive-grade reliability data is provided for the SS115HR3G. It is intended for industrial, consumer, and computing power systems only.
What packaging format is supplied for the SS115HR3G?
The SS115HR3G is supplied in 7,500-piece tape-and-reel packaging per the "ORDERING INFORMATION" section of the Taiwan Semiconductor datasheet (R2305, page 3). The reel conforms to EIA-481 standards and is compatible with standard high-speed pick-and-place equipment. No bulk or ammo-pack options are listed for this part number.
SS115HR3G 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:
- 500 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 125°C
SS115HR3G FAQ
1.How can I place an order for SS115HR3G through Aetrix?
Please submit a Request for Quotation (RFQ) for SS115HR3G 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 SS115HR3G reliable?
The price and inventory of SS115HR3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SS115HR3G is usually 5 days.
3.What payment methods are accepted for SS115HR3G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SS115HR3G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SS115HR3G?
SS115HR3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SS115HR3G 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 SS115HR3G?
For technical support, including SS115HR3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SS115HR3G requirements.
6.How does Aetrix verify that SS115HR3G is sourced from the original manufacturer or authorized distributors?
All SS115HR3G 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 SS115HR3G meets industry standards.
7.What is the process for return or replacement of SS115HR3G?
All SS115HR3G units undergo pre-shipment inspection (PSI). If there is an issue with SS115HR3G, 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 SS115HR3G part is unused and in its original packaging.
Return procedure for SS115HR3G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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