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Taiwan Semiconductor Corporation SD101CW RHG
- Part No.:
- SD101CW RHG
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
SD101CW RHG.pdf
- Description:
- DIODE SCHOTTKY 40V 15MA SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:4,334
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Product details
Overview
SD101CW RHG from Taiwan Semiconductor is a surface-mount switching Schottky barrier diode in SOD-123 package, rated for 30 V peak repetitive reverse voltage, 15 mA forward current, and 0.39 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 SD101CW RHG datasheet, SD101CW RHG pinout, SD101CW RHG application, or SD101CW RHG equivalent, key selection criteria include its 30 V VR, 0.39 V VF at 15 mA, 2.2 pF junction capacitance at 0 V, 1.0 ns reverse recovery time, and SOD-123 thermal resistance of 28 °C/W.
Technical Context
This Schottky diode operates with negligible reverse recovery time due to majority-carrier conduction, enabling high-frequency switching up to several MHz. Its guard ring construction provides transient protection while maintaining low leakage (IR ≤ 0.1 μA at 30 V).
The device uses matte tin-plated, lead-free terminals, is halogen-free per IEC 61249-2-21, and meets UL 94 V-0 flammability rating - supporting RoHS-compliant, high-reliability surface-mount assembly at 260°C/10s soldering profile.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - maximum repetitive reverse voltage before breakdown; sets safe blocking limit in buck converter freewheeling path |
| VF @ 15 mA | 0.39 V - low forward drop reduces conduction loss in battery-powered 3.3 V or 5 V rail rectification |
| trr | 1.0 ns - enables operation >10 MHz switching without reverse recovery tail losses |
| CJ @ 0 V | 2.2 pF - minimal capacitive loading on high-speed signal or RF bias lines |
| RθJA | 28 °C/W - thermal resistance allows 15 mA continuous operation at TA ≤ 85°C without heatsinking |
| IFM | 400 mA - non-repetitive surge rating supports inrush current handling during hot-swap events |
Pinout & Package
SOD-123 plastic surface-mount package: 2-terminal, cathode-banded, 1.4–1.8 mm width, 3.55–3.85 mm length, 0.45–0.70 mm height; weight ≈ 0.01 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in synchronous buck); accepts up to 400 mA surge |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; connects to output rail; blocks up to 30 V reverse bias with IR ≤ 0.1 μA |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring construction | Enhances ESD and transient immunity without increasing VF or trr - critical for USB port protection stages |
| Halogen-free molding compound | Complies with IEC 61249-2-21; eliminates corrosive halogen emissions during reflow or field failure |
| UL 94 V-0 flammability rating | Prevents flame propagation in enclosed industrial or automotive enclosures under fault conditions |
| 260°C/10s soldering tolerance | Supports standard lead-free reflow profiles without delamination or bond degradation |
Applications
| USB Power Delivery Rectification | Low-Voltage DC-DC Converter Output |
|---|---|
Use Scenario: Reverse polarity and overvoltage protection in 5 V/9 V/15 V USB PD sink paths. IC Role / Device Role / Timing Role: Low-VF Schottky clamp diode placed between VBUS and system input to block reverse current and absorb transients. Use Value: 0.39 V VF minimizes voltage drop across protection path; 1.0 ns trr prevents oscillation during fast PD contract negotiation transitions. | Use Scenario: Output rectification in 3.3 V or 5 V buck converters powering microcontrollers or sensors. IC Role / Device Role / Timing Role: Freewheeling diode providing current path during high-side FET off-time. Use Value: 2.2 pF CJ avoids resonance with inductor; 30 V VRRM safely handles 5 V rail + 20% margin and ringing peaks. |
| Portable Battery Charger IC Interface | IoT Sensor Node Power Sequencing |
Use Scenario: Isolation between battery charger IC and system PMIC to prevent backfeed during charging faults. IC Role / Device Role / Timing Role: Unidirectional isolation diode ensuring charger output cannot source current into PMIC input. Use Value: 0.1 μA IR at 30 V ensures <1 nA leakage into PMIC standby rails - preserving multi-week shelf life. | Use Scenario: Controlled power-up sequencing between coin-cell backup rail and main Li-ion supply in environmental sensors. IC Role / Device Role / Timing Role: OR-ing diode selecting higher-voltage source while blocking reverse current from weaker rail. Use Value: 28 °C/W RθJA enables continuous 15 mA conduction without derating in sealed sensor housings up to 70°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semi NSS10100MT1G | 30 V VRRM, 0.45 V VF @ 15 mA, SOD-123, but 3.5 pF CJ and 100 nA IR @ 30 V | Higher capacitance limits use in >5 MHz converters; higher leakage affects ultra-low-power sleep modes | Select SD101CW RHG when sub-2.5 pF and <0.2 μA IR are required for precision low-leakage designs |
| Vishay SS12 | 20 V VRRM, 0.5 V VF @ 15 mA, DO-214AC package (larger footprint), 15 A IFSM | Lower voltage rating restricts use to ≤12 V systems; through-hole or larger SMT footprint increases board area | Choose SD101CW RHG for space-constrained 3.3–5 V applications needing 30 V margin and SOD-123 miniaturization |
Compared with NSS10100MT1G and SS12, SD101CW RHG delivers the lowest combined VF/CJ/IR trade-off in SOD-123, making it optimal for compact, high-efficiency, low-leakage 3.3–5 V power paths where 30 V blocking is mandatory.
Availability
SD101CW RHG is available at Aetrix Electronics and suitable for USB PD interface protection, low-voltage DC-DC converter output rectification, and IoT sensor node power sequencing requiring stable component supply across production lifecycles.
Supply support for SD101CW 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.
The SD101xW series was designed specifically for space-constrained, low-loss switching applications in portable and battery-powered electronics - emphasizing low VF, fast trr, and robust SMT process compatibility.
FAQ
What is the maximum continuous forward current rating for SD101CW RHG?
The SD101CW RHG is rated for 15 mA continuous forward current (IF) at 25°C ambient temperature. Derating is required above 25°C per its 28 °C/W thermal resistance - for example, at 85°C ambient, maximum IF drops to approximately 11 mA to maintain junction temperature below 125°C.
Does SD101CW RHG have a specified reverse recovery time, and how is it measured?
Yes, SD101CW RHG has a reverse recovery time (trr) of 1.0 ns, measured under conditions IF = IR = 5.0 mA, Irr = 0.1 × IR, and RL = 100 Ω. This ultrafast value reflects its Schottky barrier structure and confirms suitability for high-frequency switching applications beyond 10 MHz.
Is SD101CW RHG compliant with RoHS and halogen-free standards?
Yes, SD101CW RHG complies with RoHS Directive 2011/65/EU and is halogen-free per IEC 61249-2-21. Its molding compound also meets UL 94 V-0 flammability rating, and terminals are matte tin-plated and lead-free - fully aligned with modern environmental and safety requirements.
What is the junction capacitance of SD101CW RHG, and at what condition is it specified?
The junction capacitance (CJ) of SD101CW RHG is 2.2 pF, specified at VR = 0 V and f = 1.0 MHz. This low value minimizes capacitive loading in high-speed signal routing and RF bias networks, and remains stable across its 0–30 V reverse bias range per typical characterization curves.
Can SD101CW RHG be used as a direct replacement for SD101AW or SD101BW in existing designs?
No - SD101CW RHG is not a direct replacement for SD101AW (60 V VRRM) or SD101BW (50 V VRRM). Its 30 V VRRM and lower VF (0.39 V vs. 0.40–0.41 V) make it suitable only where 30 V blocking suffices; substituting it into 50+ V designs risks reverse breakdown and field failure.
SD101CW RHG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 15mA
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 15 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 1 ns
- Current - Reverse Leakage @ Vr:
- 200 nA @ 40 V
- Capacitance @ Vr, F:
- 2.2pF @ 0V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
- Operating Temperature - Junction:
- -65°C ~ 125°C
SD101CW RHG FAQ
1.How can I place an order for SD101CW RHG through Aetrix?
Please submit a Request for Quotation (RFQ) for SD101CW 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 SD101CW RHG reliable?
The price and inventory of SD101CW RHG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SD101CW RHG is usually 5 days.
3.What payment methods are accepted for SD101CW RHG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SD101CW RHG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SD101CW RHG?
SD101CW RHG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SD101CW 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 SD101CW RHG?
For technical support, including SD101CW RHG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SD101CW RHG requirements.
6.How does Aetrix verify that SD101CW RHG is sourced from the original manufacturer or authorized distributors?
All SD101CW 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 SD101CW RHG meets industry standards.
7.What is the process for return or replacement of SD101CW RHG?
All SD101CW RHG units undergo pre-shipment inspection (PSI). If there is an issue with SD101CW 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 SD101CW RHG part is unused and in its original packaging.
Return procedure for SD101CW RHG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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