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Diodes Incorporated SD101BW-13
- Part No.:
- SD101BW-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
SD101BW-13.pdf
- Description:
- SCHOTTKY SOD123F 50V 0.015A 125C
- Quantity:
- Payment:
- Shipping:
Inventory:2,000
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Product details
Overview
SD101BW-13 from Diodes Incorporated is a Schottky barrier switching diode in SOD-123 package, rated for 50 V peak repetitive reverse voltage, 15 mA forward continuous current, and 0.41 V forward voltage at 1.0 mA - optimized for low-loss signal routing in portable power management and high-speed logic interfaces.
For engineers reviewing the SD101BW-13 datasheet, SD101BW-13 pinout, SD101BW-13 application, or SD101BW-13 equivalent, key selection criteria include its 1.0 ns reverse recovery time, 2.1 pF junction capacitance at 0 V, guard ring construction for ESD robustness, and RoHS-compliant green molding compound.
Technical Context
This Schottky diode operates with negligible minority-carrier storage, enabling nanosecond-scale switching in clamping, polarity protection, and sample-and-hold circuits. Its guard ring structure suppresses edge leakage and improves transient immunity without requiring external TVS components.
The device exhibits thermally stable forward conduction up to +125°C ambient, with 300°C/W junction-to-ambient thermal resistance on FR-4 PCBs using recommended pad layout. Reverse leakage remains below 200 nA at 40 V DC blocking voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - maximum non-repetitive reverse voltage before breakdown; sets safe operating limit in 3.3 V–24 V rail protection |
| VF @ 1.0 mA | 0.41 V - low forward drop minimizes power loss in battery-fed signal paths |
| IF Continuous | 15 mA - usable for logic-level signal steering and low-current bias networks |
| trr | 1.0 ns - enables clean switching in >100 MHz digital timing and RF detector applications |
| CT @ 0 V | 2.1 pF - low junction capacitance preserves signal integrity in high-frequency AC coupling |
| Package | SOD-123 - surface-mount outline (3.7 mm × 1.2 mm × 0.9 mm) compatible with standard 0805 reflow profiles |
Pinout & Package
SOD-123 package: two-terminal surface-mount device with cathode band marking; anode and cathode terminals defined by molded polarity indicator.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to higher-potential node during conduction; requires trace width ≥ 0.25 mm for 15 mA |
| Cathode (banded end) | Forward current exit / reverse blocking terminal | Marked side connects to lower-potential node; reverse voltage applied here must stay ≤ 40 V DC |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring construction | Suppresses edge leakage and improves ESD withstand (>8 kV HBM) without added layout area |
| Negligible reverse recovery time | Eliminates switching tail current, reducing cross-conduction risk in dual-diode clamp topologies |
| Low forward voltage (0.41 V @ 1 mA) | Enables efficient level shifting between 1.8 V and 3.3 V logic domains with <1 mW dissipation |
| RoHS-compliant green compound | Halogen- and antimony-free molding material meets IPC-1752A Class 2 reporting requirements |
Applications
| USB Port Polarity Protection | High-Speed Logic Clamping |
|---|---|
Use Scenario: Preventing damage from reversed VBUS insertion in micro-USB receptacles. IC Role / Device Role / Timing Role: Unidirectional current gate placed between connector and PMIC input. Use Value: 50 V VRRM accommodates USB 2.0/3.0 surge transients; 0.41 V VF avoids voltage droop on 5 V rail. | Use Scenario: Limiting overshoot on FPGA I/O lines during hot-plug events. IC Role / Device Role / Timing Role: Fast clamping diode tied between I/O pin and 3.3 V supply rail. Use Value: 1.0 ns trr ensures sub-nanosecond response; 2.1 pF CT prevents signal distortion above 100 MHz. |
| RF Detector Input Stage | Low-Power Sensor Bias Network |
Use Scenario: Rectifying weak RF signals (900 MHz ISM band) in energy harvesting receivers. IC Role / Device Role / Timing Role: Signal-path Schottky detector diode in envelope demodulator circuit. Use Value: Low VF and minimal CT maximize sensitivity at -20 dBm input levels. | Use Scenario: Providing isolated bias current to MEMS pressure sensor analog front-end. IC Role / Device Role / Timing Role: Leakage-suppressing isolation element in ultra-low-IQ bias chain. Use Value: 200 nA IR at 40 V ensures <100 pA error contribution in 1 μA bias paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAT54C-7-F | Higher VRRM (30 V), dual-common-cathode configuration, 0.24 pF lower CT | Designed for dual-channel logic clamping; not single-diode drop-in | Select when dual-diode integration reduces board area vs. discrete placement |
| NSR0230HT1G | Lower VF (0.32 V @ 1 mA), same SOD-123 footprint, 2× higher IF rating (200 mA) | Optimized for power path OR-ing; over-specified for signal-level use | Choose only if future design scaling requires >15 mA current handling |
Compared with BAT54C-7-F and NSR0230HT1G, SD101BW-13 delivers best-in-class balance of low VF, ultra-low CT, and tight leakage for signal integrity–critical roles where power efficiency and bandwidth outweigh raw current capacity.
Availability
SD101BW-13 is available at Aetrix Electronics and suitable for USB interface protection, high-speed logic clamping, and RF detector front-ends requiring stable component supply across production lifecycles.
Supply support for SD101BW-13 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and the US.
The SD101xW series belongs to Diodes' general-purpose Schottky diode product line, engineered specifically for low-voltage, high-speed signal conditioning in space-constrained portable and communications equipment.
FAQ
What is the maximum reverse voltage SD101BW-13 can withstand continuously?
The SD101BW-13 has a DC blocking voltage (VR) of 40 V and a peak repetitive reverse voltage (VRRM) of 50 V. For continuous operation, applied reverse voltage must not exceed 40 V; transient spikes may reach 50 V for short durations per datasheet limits.
Is SD101BW-13 suitable for 5 V logic-level clamping?
Yes - with 0.41 V forward voltage at 1 mA and 1.0 ns reverse recovery, it provides fast, low-loss clamping to 5 V rails. Its 2.1 pF capacitance avoids signal degradation in 50 MHz–200 MHz digital interfaces.
Does SD101BW-13 require derating at elevated ambient temperatures?
Yes - power dissipation must be linearly derated above 25°C ambient. At 85°C, maximum allowable power drops to 200 mW (50% of 400 mW rating), based on its 300°C/W RθJA and FR-4 board layout.
How is polarity identified on the SD101BW-13 package?
Polarity is marked by a cathode band printed on the SOD-123 case. The banded end is the cathode; the unmarked end is the anode. This matches standard diode marking convention and aligns with PCB silkscreen indicators.
SD101BW-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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 @ 40 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-13 FAQ
1.How can I place an order for SD101BW-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SD101BW-13 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-13 reliable?
The price and inventory of SD101BW-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SD101BW-13 is usually 5 days.
3.What payment methods are accepted for SD101BW-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SD101BW-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SD101BW-13?
SD101BW-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SD101BW-13 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-13?
For technical support, including SD101BW-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SD101BW-13 requirements.
6.How does Aetrix verify that SD101BW-13 is sourced from the original manufacturer or authorized distributors?
All SD101BW-13 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-13 meets industry standards.
7.What is the process for return or replacement of SD101BW-13?
All SD101BW-13 units undergo pre-shipment inspection (PSI). If there is an issue with SD101BW-13, 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-13 part is unused and in its original packaging.
Return procedure for SD101BW-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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