My Inquiry
My Account
Diodes Incorporated SDM01U50CP3-7
- Part No.:
- SDM01U50CP3-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- 2-XDFN
- Datasheet:
-
SDM01U50CP3-7.pdf
- Description:
- DIODE SCHOT 50V 100MA X3WLB0603
- Quantity:
- Payment:
- Shipping:
Inventory:6,501
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SDM01U50CP3 from Diodes Incorporated is a 50 V, 100 mA Schottky barrier diode in a chip-scale package (X3-WLB0603-2), optimized for low forward voltage (max 500 mV @ 100 mA) and ultra-low leakage (max 25 µA @ 50 V). It serves as a blocking or reverse-polarity protection diode in space-constrained portable electronics, delivering soft fast switching and thermal resistance of 220 °C/W.
For engineers reviewing the SDM01U50CP3 datasheet, SDM01U50CP3 pinout, SDM01U50CP3 application, or SDM01U50CP3 equivalent, key selection criteria include its 0.18 mm² footprint, cathode-dot polarity marking, NiAu bump terminals, and suitability for battery-powered DC/DC converter input stages and USB port protection circuits.
Technical Context
This Schottky diode employs a planar silicon structure with metal–semiconductor junction to achieve low VF and fast recovery without minority-carrier storage delay. Its junction capacitance is 7.5 pF at 5 V reverse bias, enabling high-frequency operation in boost converters and load-switching paths.
The X3-WLB0603-2 package features bare-silicon side walls and a 0.275 mm profile, requiring controlled solder reflow to avoid flux contact with active edges. Thermal design must prevent thermal runaway under sustained 100 mA load due to its 220 °C/W RθJA on FR-4.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum reverse blocking voltage before breakdown; sets safe operating limit in 3.3 V–24 V rail protection |
| IO | 100 mA - Continuous DC forward current rating; defines steady-state power delivery capability |
| VF max | 500 mV @ 100 mA - Low conduction loss enables >95% efficiency in low-voltage boost stages |
| IR max | 25 µA @ 50 V - Minimizes standby battery drain in always-on portable devices |
| Junction Capacitance | 7.5 pF @ 5 V - Enables clean switching up to ~200 MHz in RF detector or snubber applications |
| RθJA | 220 °C/W - Requires minimal copper area for thermal management in ultra-thin PCBs |
Pinout & Package
Package: X3-WLB0603-2 chip-scale package (0.60 × 0.30 × 0.275 mm), with NiAu solderable bumps and cathode dot marking. Side walls are electrically active bare silicon - flux/solder contact must be avoided during assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Bump A) | Forward current entry point | Connected to input/source rail; requires thermal pad connection for heat dissipation |
| Cathode (Bump K) | Forward current exit / reverse-blocking terminal | Marked with dot; ties to output/load or ground; determines polarity protection direction |
Key Features
| Feature | Design Value |
|---|---|
| 0.18 mm² footprint | Reduces board area by >60% vs. SOD-123; enables placement under connectors or near ICs |
| Soft fast switching | No reverse recovery tail current - eliminates EMI spikes in high-dV/dt environments |
| Low leakage (≤25 µA) | Extends shelf life and runtime of coin-cell–powered IoT sensors by minimizing quiescent drain |
| NiAu bump terminations | Enables reliable reflow soldering on fine-pitch pads without intermetallic degradation |
Applications
| USB Port Reverse Protection | Wearable Battery Charging Path |
|---|---|
Use Scenario: Preventing damage from misconnected external power adapters on micro-USB or USB-C ports. IC Role / Device Role / Timing Role: Reverse-polarity protection diode placed in series with VBUS line. Use Value: 500 mV VF drop limits voltage loss to <2% at 100 mA, preserving charging efficiency while blocking -5 V faults. | Use Scenario: Isolating primary Li-ion cell from backup coin cell during charging cycles in smart bands. IC Role / Device Role / Timing Role: Blocking diode preventing backfeed from charger into backup supply. Use Value: 25 µA max IR ensures <1% monthly self-discharge of CR2032, extending shelf life beyond 12 months. |
| Low-Power Boost Converter Output | IoT Sensor Node Rail Clamp |
Use Scenario: Rectifying switched inductor output in 3.3 V → 5 V boost regulators for BLE modules. IC Role / Device Role / Timing Role: Synchronous rectifier replacement in discontinuous conduction mode (DCM). Use Value: 7.5 pF junction capacitance minimizes switching node ringing, reducing conducted EMI by >10 dBµV. | Use Scenario: Clamping transient overvoltage on 1.8 V I/O lines of environmental sensors exposed to ESD events. IC Role / Device Role / Timing Role: Low-capacitance shunt clamp diode tied between signal and VDD. Use Value: Soft switching behavior avoids latch-up during 8 kV HBM ESD strikes, maintaining system uptime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RB521S-30T2R | 30 V VRRM, 200 mA IO, SOD-523 package (0.6 × 0.3 × 0.3 mm) | Lower voltage rating limits use to ≤3.3 V systems; larger height may conflict with stacked components | Select when higher current headroom is needed and 30 V blocking suffices |
| NSR0130P2T5G | 30 V VRRM, 100 mA IO, SOD-923 package (1.0 × 0.6 × 0.4 mm) | Higher profile (0.4 mm) and 3× footprint area reduce density advantage; VF = 450 mV @ 100 mA | Choose if legacy SMT process lacks CSP handling capability |
Compared with RB521S-30T2R and NSR0130P2T5G, SDM01U50CP3 uniquely delivers 50 V blocking in a 0.18 mm² CSP - critical for industrial 24 V input protection where alternatives require derating or board redesign.
Availability
SDM01U50CP3 is available at Aetrix Electronics and suitable for USB power protection, wearable battery management, low-power boost converters, and IoT sensor node clamping requiring stable component supply and long-term lifecycle support.
Supply support for SDM01U50CP3 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.
The SDM01U50CP3 belongs to Diodes' ultra-compact Schottky diode product line, engineered specifically for miniaturized portable and battery-sensitive applications where board space and leakage current are primary constraints.
FAQ
What is the maximum allowable junction temperature for continuous operation?
The SDM01U50CP3 has an operating junction temperature range of –55 °C to +150 °C. For continuous 100 mA operation, thermal design must ensure TJ stays below 150 °C - typically requiring ≤110 °C ambient with adequate copper pour, given its 220 °C/W RθJA.
Is the X3-WLB0603-2 package compatible with standard reflow profiles?
Yes - the NiAu bumps are qualified for IPC/JEDEC J-STD-020 Level 1 moisture sensitivity and withstand peak reflow temperatures up to 260 °C. However, solder paste volume must be tightly controlled to prevent bridging between the 0.4 mm pitch bumps.
Can this diode be used in automotive applications?
The SDM01U50CP3 is not AEC-Q101 qualified. Diodes Incorporated offers automotive-grade variants (e.g., SDM01U50Q3) with PPAP documentation and IATF 16949 manufacturing - contact their automotive team for qualified alternatives.
How does the "soft switching" behavior improve system reliability?
Soft switching eliminates reverse recovery charge (Qrr ≈ 0), preventing voltage overshoot and ringing during turn-off. This reduces stress on MOSFETs in synchronous rectifiers and lowers EMI emissions - verified in boost converter layouts per Figure 1 and 2 of D41886 Rev. 2.
SDM01U50CP3-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 2-XDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io):
- 100mA
- Voltage - Forward (Vf) (Max) @ If:
- 500 mV @ 100 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 25 µA @ 50 V
- Capacitance @ Vr, F:
- 7.5pF @ 5V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X3-WLB0603-2
- Operating Temperature - Junction:
- -55°C ~ 150°C
SDM01U50CP3-7 FAQ
1.How can I place an order for SDM01U50CP3-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for SDM01U50CP3-7 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 SDM01U50CP3-7 reliable?
The price and inventory of SDM01U50CP3-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SDM01U50CP3-7 is usually 5 days.
3.What payment methods are accepted for SDM01U50CP3-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SDM01U50CP3-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SDM01U50CP3-7?
SDM01U50CP3-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SDM01U50CP3-7 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 SDM01U50CP3-7?
For technical support, including SDM01U50CP3-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SDM01U50CP3-7 requirements.
6.How does Aetrix verify that SDM01U50CP3-7 is sourced from the original manufacturer or authorized distributors?
All SDM01U50CP3-7 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 SDM01U50CP3-7 meets industry standards.
7.What is the process for return or replacement of SDM01U50CP3-7?
All SDM01U50CP3-7 units undergo pre-shipment inspection (PSI). If there is an issue with SDM01U50CP3-7, 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 SDM01U50CP3-7 part is unused and in its original packaging.
Return procedure for SDM01U50CP3-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SDM01U50CP3-7 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…
