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Taiwan Semiconductor Corporation SD101BW RHG
- Part No.:
- SD101BW RHG
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
SD101BW RHG.pdf
- Description:
- DIODE SCHOTTKY 50V 15MA SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:4,971
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Product details
Overview
SD101BW RHG from Taiwan Semiconductor is a surface-mount switching Schottky barrier diode in SOD-123 package, rated for 40 V peak repetitive reverse voltage, 15 mA forward current, and 0.40 V forward voltage drop at 15 mA - used in low-loss DC-DC converter output rectification and portable power management circuits.
For engineers reviewing the SD101BW RHG datasheet, SD101BW RHG pinout, SD101BW RHG application, or SD101BW RHG equivalent, key selection criteria include its 40 V VRWM rating, 0.40 V VF at 15 mA, negligible trr (<2.2 ns), SOD-123 footprint compatibility, and halogen-free, RoHS-compliant construction.
Technical Context
This Schottky diode leverages guard ring construction for transient protection and achieves negligible reverse recovery time due to majority-carrier conduction. Its low 0.40 V forward voltage drop at 15 mA and 2.2 pF junction capacitance at 0 V support high-frequency switching efficiency in compact power stages.
Rated for -65°C to +125°C operating temperature and qualified for 260°C/10s soldering, SD101BW RHG meets UL 94 V-0 flammability and IEC 61249-2-21 halogen-free standards - enabling use in space-constrained, thermally demanding consumer and industrial power modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 40 V - Maximum working peak reverse voltage before significant leakage or breakdown |
| IF | 15 mA - Continuous forward current capability without derating at 25°C ambient |
| VF @ 15 mA | 0.40 V - Low conduction loss enabling >90% efficiency in 3.3 V–5 V buck converter outputs |
| trr | <2.2 ns - Negligible reverse recovery minimizes switching loss and EMI in >1 MHz converters |
| CJ @ 0 V | 2.2 pF - Low junction capacitance preserves high-frequency response in RF detector or clamp circuits |
| TJ Range | -65°C to +125°C - Wide thermal operating envelope supports automotive under-hood and industrial control environments |
Pinout & Package
SOD-123 plastic surface-mount package with cathode band marking; 2-terminal device (anode/cathode); matte tin-plated, lead-free terminals; 0.01 g mass; UL 94 V-0 compliant molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in synchronous buck) to enable unidirectional conduction |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; tied to output rail or ground return path; blocks up to 40 V reverse bias |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring construction | Enhances ESD and transient surge immunity without adding series resistance or capacitance |
| Negligible reverse recovery time | Eliminates minority-carrier tail current, reducing switching losses and snubber requirements |
| Halogen-free packaging | Meets IEC 61249-2-21 for environmentally compliant PCB assembly and end-of-life processing |
| 260°C/10s soldering tolerance | Supports standard lead-free reflow profiles without delamination or parameter shift |
Applications
| Battery Charger Output Rectifier | USB Power Delivery Clamp |
|---|---|
Use Scenario: Rectifying switched output in single-cell Li-ion charger ICs with 5 V input. IC Role / Device Role: Low-VF freewheeling diode replacing MOSFET sync rectifier where gate drive complexity is prohibitive. Use Value: 0.40 V VF reduces conduction loss by >65% vs. standard silicon diodes, extending charge cycle efficiency. | Use Scenario: Reverse-polarity and overvoltage protection on USB-C VBUS lines. IC Role / Device Role: Fast-clamping Schottky diode in series with VBUS to block fault currents during hot-plug events. Use Value: 2.2 ns trr ensures clamping action precedes system-level damage thresholds in <100 ns transients. |
| Low-Power IoT Sensor Rail Clamp | RF Detector Input Protection |
Use Scenario: Protecting 3.3 V supply rails of BLE/Wi-Fi modules against ESD and load dump. IC Role / Device Role: Transient voltage suppressor leveraging guard ring structure and low CJ. Use Value: 2.2 pF capacitance avoids signal integrity degradation on 2.4 GHz RF-sensitive supply nodes. | Use Scenario: Input stage protection for microwave RF power detectors in 5G infrastructure monitoring. IC Role / Device Role: Low-capacitance shunt limiter preventing detector diode burnout from RF overload. Use Value: 2.2 pF CJ and sub-ns trr preserve detector linearity up to 6 GHz without resonance or phase distortion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSS1C200LT1G | 40 V VRWM, 0.45 V VF @ 15 mA, SOD-123, but higher 0.45 V VF increases conduction loss by ~12.5% | Same footprint; suited for general-purpose clamping but less optimal in ultra-low-loss battery charging | Select when cost sensitivity outweighs 50 mV VF penalty and higher trr (3.5 ns) is acceptable |
| Vishay SS12 | 20 V VRWM, 0.5 V VF @ 15 mA, SMA package (larger than SOD-123), 5 A IF rating | Not footprint-compatible; intended for higher-current 12 V systems, not 3.3–5 V portable rails | Choose only if board redesign accommodates SMA and system requires >20 V blocking with higher surge margin |
Compared with NSS1C200LT1G and SS12, SD101BW RHG delivers the lowest forward voltage (0.40 V) in SOD-123, enabling highest efficiency in space-constrained 5 V power paths while maintaining full RoHS/halogen-free compliance and transient robustness.
Availability
SD101BW RHG is available at Aetrix Electronics and suitable for battery-powered wearables, USB-C PD adapters, and low-power IoT sensor nodes requiring stable component supply, consistent parametric performance across production lots, and long-term lifecycle availability.
Supply support for SD101BW RHG 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 is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, specializing in high-reliability power devices and small-signal components for industrial and consumer markets.
SD101BW RHG belongs to the SD101xW Schottky diode family, engineered specifically for low-voltage, high-efficiency rectification and clamping in miniaturized power supplies where thermal and footprint constraints dominate design trade-offs.
FAQ
What is the maximum reverse voltage rating for SD101BW RHG?
The SD101BW RHG has a peak repetitive reverse voltage (VRWM) rating of 40 V. This value is confirmed in the manufacturer's datasheet under "Maximum Ratings" and defines the highest continuous reverse-bias voltage the diode can block without exceeding specified leakage current (IR ≤ 10 μA). Exceeding 40 V risks irreversible breakdown.
What is the forward voltage drop of SD101BW RHG at 15 mA?
The forward voltage drop (VF) of SD101BW RHG is 0.40 V at 15 mA forward current and 25°C ambient temperature. This value is measured per standard test conditions (pulse width = 300 μs, duty cycle ≤ 2%) and reflects its optimized Schottky junction for minimal conduction loss in low-voltage power rails.
Is SD101BW RHG compatible with lead-free reflow soldering processes?
Yes, SD101BW RHG is qualified for high-temperature lead-free soldering at 260°C for 10 seconds, per MIL-STD-202 Method 208. Its matte tin-plated, lead-free terminals and UL 94 V-0 molding compound ensure reliable wetting and mechanical integrity during standard Pb-free reflow profiles.
Does SD101BW RHG have halogen-free construction?
Yes, SD101BW RHG complies with IEC 61249-2-21 for halogen-free materials. The molding compound contains no chlorine or bromine-based flame retardants, supporting environmentally responsible manufacturing and end-of-life recycling requirements for consumer and industrial electronics.
What is the junction-to-ambient thermal resistance (RθJA) of SD101BW RHG?
The junction-to-ambient thermal resistance (RθJA) of SD101BW RHG is 28°C/W under standard SOD-123 mounting conditions with terminals held at ambient temperature. This value assumes no additional copper pour or thermal vias; actual board-level RθJA will improve with enhanced PCB thermal design.
SD101BW RHG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io):
- 15mA
- Voltage - Forward (Vf) (Max) @ If:
- 950 mV @ 15 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 1 ns
- Current - Reverse Leakage @ Vr:
- 200 nA @ 50 V
- Capacitance @ Vr, F:
- 2.1pF @ 0V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
- Operating Temperature - Junction:
- -65°C ~ 125°C
SD101BW RHG FAQ
1.How can I place an order for SD101BW RHG through Aetrix?
Please submit a Request for Quotation (RFQ) for SD101BW RHG 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 SD101BW RHG reliable?
The price and inventory of SD101BW RHG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SD101BW RHG is usually 5 days.
3.What payment methods are accepted for SD101BW RHG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SD101BW RHG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SD101BW RHG?
SD101BW RHG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SD101BW RHG 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 SD101BW RHG?
For technical support, including SD101BW RHG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SD101BW RHG requirements.
6.How does Aetrix verify that SD101BW RHG is sourced from the original manufacturer or authorized distributors?
All SD101BW RHG 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 SD101BW RHG meets industry standards.
7.What is the process for return or replacement of SD101BW RHG?
All SD101BW RHG units undergo pre-shipment inspection (PSI). If there is an issue with SD101BW RHG, 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 SD101BW RHG part is unused and in its original packaging.
Return procedure for SD101BW RHG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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