My Inquiry
My Account
Diodes Incorporated SD101CWS-7-F
- Part No.:
- SD101CWS-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
SD101CWS-7-F.pdf
- Description:
- DIODE SCHOTTKY 40V 15MA SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:13,874
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SD101CWS-7-F from Diodes Incorporated is a surface-mount Schottky barrier diode in SOD323 package, rated for 40 V peak reverse voltage, 0.39 V forward voltage at 1.0 mA, 2.2 pF capacitance at 0 V, 1.0 ns reverse recovery time, and 15 mA continuous forward current - used in low-power signal rectification and polarity protection circuits.
For engineers reviewing the SD101CWS-7-F datasheet, SD101CWS-7-F pinout, SD101CWS-7-F application, or SD101CWS-7-F equivalent, key selection criteria include low forward voltage for battery-sensitive designs, ultra-fast switching for high-frequency signal clamping, minimal junction capacitance for RF coupling, and AEC-Q200-compatible construction for automotive-grade reliability validation.
Technical Context
This Schottky diode leverages guard ring construction to suppress transient-induced leakage and improve ESD robustness without compromising switching speed. Its negligible reverse recovery time (1.0 ns) and low capacitance (2.2 pF) enable stable operation in 1–10 MHz signal path applications such as RF detector inputs and logic-level clamping.
The device operates across –65 °C to +125 °C with thermal resistance of 625 °C/W and power dissipation derated linearly above 25 °C ambient - validated for use on FR-4 PCBs using Diodes' recommended SOD323 pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - maximum repetitive reverse blocking capability before avalanche onset |
| VFM @ 1.0 mA | 0.39 V - enables <100 mV drop in low-current bias networks and sensor interfaces |
| tRR | 1.0 ns - supports clean edge transitions in digital signal conditioning and pulse shaping |
| CT @ 0 V | 2.2 pF - minimizes loading on high-impedance RF nodes and crystal oscillator feedback paths |
| IFM | 15 mA - suitable for signal-level rectification, not power conversion |
| RθJA | 625 °C/W - requires thermal-aware PCB layout for sustained 15 mA operation above 75 °C ambient |
Pinout & Package
Package: SOD323 - ultra-small plastic surface-mount package (2.70 mm × 1.30 mm × 0.90 mm), cathode-banded polarity, matte tin-plated terminals, moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side in reverse-polarity protection or to signal source in clamp circuits |
| Cathode | Forward current exit / reverse-blocking terminal | Marked by band; tied to higher-potential rail in protection schemes or to reference node in detector circuits |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring construction | Suppresses edge leakage and improves transient immunity without increasing series resistance |
| Negligible reverse recovery time | Eliminates minority-carrier storage delay, enabling clean switching up to 100 MHz |
| Low forward voltage (0.39 V @ 1 mA) | Reduces conduction loss in always-on bias networks and battery-monitoring dividers |
| Ultra-low capacitance (2.2 pF) | Preserves signal integrity in 2.4 GHz ISM-band front-end matching and crystal load tuning |
Applications
| USB Port Polarity Protection | RF Signal Detector Input |
|---|---|
Use Scenario: Preventing damage from reversed USB cable insertion in portable charging circuits. IC Role / Device Role / Timing Role: Low-loss series blocking diode placed between VBUS and system input rail. Use Value: 0.39 V forward drop preserves >95% of 5 V supply headroom at 1 mA standby current. | Use Scenario: Demodulating AM envelope signals in sub-GHz wireless receivers. IC Role / Device Role / Timing Role: Passive half-wave rectifier at detector node with minimal capacitive loading. Use Value: 2.2 pF junction capacitance avoids detuning of 433 MHz LC tank resonators. |
| Logic-Level Clamping | Low-Power Sensor Biasing |
Use Scenario: Limiting I/O voltage excursions beyond MCU GPIO absolute maximum ratings. IC Role / Device Role / Timing Role: Fast-turn-on clamp to VDD or GND, activated within 1 ns of overvoltage event. Use Value: 1.0 ns tRR ensures clamping action precedes logic gate damage thresholds in 10 ns rise-time transients. | Use Scenario: Providing stable bias current to photodiode or thermistor measurement bridges. IC Role / Device Role / Timing Role: Precision current source element in constant-current loop with low thermal drift. Use Value: Forward voltage variation <±2 mV over –40 °C to +85 °C enables <0.5% bias current drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RB520S-30T2R | 30 V VRRM, 0.33 V VFM @ 1 mA, SOD-523 package (smaller footprint) | Lower voltage rating limits use in 3.3 V rail protection; smaller size increases solder joint stress risk | Select when board space is constrained and reverse voltage stays ≤30 V |
| BAT54CW-7-F | 30 V VRRM, dual common-cathode configuration, 0.24 V VFM @ 1 mA | Dual-diode layout adds routing complexity; lower VFM benefits ultra-low-voltage sensing | Select for dual-channel clamping where shared cathode simplifies layout |
Compared with RB520S-30T2R and BAT54CW-7-F, SD101CWS-7-F offers the highest reverse voltage margin (40 V) among SOD323 Schottkys while maintaining sub-0.4 V forward drop - making it optimal for 3.3 V/5 V mixed-rail systems requiring single-diode robustness without footprint compromise.
Availability
SD101CWS-7-F is available at Aetrix Electronics and suitable for USB port protection, RF detector inputs, logic-level clamping, and low-power sensor biasing requiring stable component supply across industrial and automotive production cycles.
Supply support for SD101CWS-7-F 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, manufacturing, and sales operations across Asia, Europe, and North America.
This part belongs to Diodes' standard Schottky diode product line, engineered for high-speed, low-loss signal-path applications in portable, automotive, and industrial electronics where compact size and thermal stability are critical.
FAQ
What is the maximum continuous forward current rating for SD101CWS-7-F?
The SD101CWS-7-F is rated for 15 mA continuous forward current (IFM) at 25 °C ambient, with power dissipation derated linearly above that temperature per the published derating curve. At 75 °C ambient, maximum allowable IFM drops to approximately 10 mA to maintain safe junction temperature.
Is SD101CWS-7-F qualified for automotive applications?
While SD101CWS-7-F is manufactured in IATF 16949-certified facilities and meets RoHS/Green requirements, it is not explicitly AEC-Q200 qualified. For automotive-grade qualification, Diodes offers the AEC-Q200-compliant SD101CWS-Q, which shares identical electrical specs but includes extended reliability testing and PPAP documentation.
How does the guard ring construction affect reliability?
The guard ring in SD101CWS-7-F reduces electric field crowding at the PN junction periphery, suppressing premature breakdown during voltage transients and improving long-term stability under repeated surge conditions. This structure is confirmed in Diodes' mechanical data and contributes to its 200 nA max reverse leakage at 30 V.
Can SD101CWS-7-F replace SD101AWS-7-F in existing designs?
Yes, SD101CWS-7-F can be substituted for SD101AWS-7-F in most applications, provided the lower 40 V VRRM (vs. 60 V) is acceptable. The forward voltage is slightly lower (0.39 V vs. 0.41 V), and capacitance is marginally higher (2.2 pF vs. 2.0 pF), but both share identical SOD323 package, pinout, and thermal characteristics.
SD101CWS-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- 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 @ 30 V
- Capacitance @ Vr, F:
- 2.2pF @ 0V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
- Operating Temperature - Junction:
- -65°C ~ 125°C
SD101CWS-7-F FAQ
1.How can I place an order for SD101CWS-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SD101CWS-7-F 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 SD101CWS-7-F reliable?
The price and inventory of SD101CWS-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SD101CWS-7-F is usually 5 days.
3.What payment methods are accepted for SD101CWS-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SD101CWS-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SD101CWS-7-F?
SD101CWS-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SD101CWS-7-F 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 SD101CWS-7-F?
For technical support, including SD101CWS-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SD101CWS-7-F requirements.
6.How does Aetrix verify that SD101CWS-7-F is sourced from the original manufacturer or authorized distributors?
All SD101CWS-7-F 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 SD101CWS-7-F meets industry standards.
7.What is the process for return or replacement of SD101CWS-7-F?
All SD101CWS-7-F units undergo pre-shipment inspection (PSI). If there is an issue with SD101CWS-7-F, 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 SD101CWS-7-F part is unused and in its original packaging.
Return procedure for SD101CWS-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SD101CWS-7-F Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
