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Diodes Incorporated B350CE-13
- Part No.:
- B350CE-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
B350CE-13.pdf
- Description:
- DIODE SCHOTTKY 50V 3A SMC
- Quantity:
- Payment:
- Shipping:
Inventory:3,280
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Product details
Overview
B350CE-13 from Diodes Incorporated is a 50 V, 3.0 A surface-mount Schottky barrier rectifier in SMC package, featuring 0.65 V max forward voltage at 3 A and 0.1 mA max reverse leakage at 50 V/25°C, optimized for boost, blocking, and recirculating diode functions in DC-DC converters and power supplies.
For engineers reviewing the B350CE-13 datasheet, B350CE-13 pinout, B350CE-13 application, or B350CE-13 equivalent, key selection criteria include thermal resistance (RθJC = 30°C/W), high-temperature reverse leakage stability (≤25 mA at 60 V/125°C), RoHS-compliant matte tin terminals, and SMB/SMC package compatibility with automated assembly.
Technical Context
This Schottky rectifier uses a planar epitaxial construction to achieve low forward voltage drop and controlled junction capacitance (110 pF at 4 V/1 MHz). Its metal-semiconductor junction enables fast switching with negligible reverse recovery time, eliminating snubber circuits in high-frequency rectification.
The device operates across –55°C to +150°C with derated current above 25°C (e.g., ~2.2 A at 100°C ambient), supported by low thermal resistance (RθJA = 70°C/W on FR-4 PCB) and stable leakage up to 125°C - critical for automotive under-hood and industrial power modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum repetitive reverse voltage before breakdown; sets safe operating limit in 24–48 V input systems. |
| IO(AV) | 3.0 A - Average forward current rating at 25°C ambient; defines continuous conduction capability in rectifier paths. |
| VF(max) | 0.65 V @ 3 A, 25°C - Low forward drop reduces conduction loss and improves efficiency in high-current DC-DC stages. |
| IR(max) | 0.1 mA @ 50 V, 25°C - Tight leakage spec ensures minimal standby power loss and thermal stability in high-temp environments. |
| RθJC | 30°C/W - Junction-to-case thermal resistance enables direct heatsinking via PCB copper pour or metal-core substrate. |
| CT | 110 pF @ 4 V, 1 MHz - Low junction capacitance minimizes switching noise and EMI in >100 kHz SMPS designs. |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with UL 94V-0 flammability rating, matte tin–annealed copper leadframe, cathode band polarity marking, weight ≈ 0.21 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., switch node in boost converter); requires adequate copper area for thermal dissipation. |
| Cathode | Forward current exit / reverse-blocking terminal | Marked with band; ties to output rail or ground return; must withstand full VRRM during off-state. |
Key Features
| Feature | Design Value |
|---|---|
| Low VF at high current | 0.65 V max @ 3 A/25°C - cuts I²R losses by >30% vs. standard PN rectifiers, reducing thermal stress in compact layouts. |
| High-temp IR stability | ≤25 mA @ 60 V/125°C - prevents thermal runaway in enclosed enclosures or high-ambient industrial environments. |
| Green RoHS compliance | Halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb) - meets IPC-1752A reporting and EU environmental mandates. |
| Robust surge rating | 80 A non-repetitive peak forward surge (8.3 ms half-sine) - withstands inrush and transient overloads without degradation. |
Applications
| Boost Diode | Blocking Diode |
|---|---|
Use Scenario: Used in step-up DC-DC converters to transfer energy from inductor to output capacitor during switch-off phase. IC Role / Device Role / Timing Role: Unidirectional current path enabling voltage multiplication; conducts only when MOSFET is off. Use Value: Low VF minimizes voltage drop across diode, preserving output regulation and efficiency at 3 A load currents. | Use Scenario: Isolates battery or auxiliary supply from main system rail to prevent backfeed during power loss. IC Role / Device Role / Timing Role: Reverse-biased isolation element; blocks current flow from output to input under fault or standby conditions. Use Value: Sub-0.1 mA leakage at 25°C ensures negligible self-discharge in battery-backed systems over extended storage. |
| Recirculating Diode | Output Rectifier |
Use Scenario: Provides freewheeling path for inductive load current (e.g., solenoid, relay coil) after drive signal removal. IC Role / Device Role / Timing Role: Clamps inductive kickback voltage to safe level; conducts only during current decay phase. Use Value: Fast recovery (Schottky) eliminates voltage spikes >2× supply, protecting driving transistors from avalanche failure. | Use Scenario: Converts switched AC-like waveform from synchronous rectifier stage into regulated DC output in isolated flyback or forward converters. IC Role / Device Role / Timing Role: Primary unidirectional conduction element in secondary-side rectification; handles full output current. Use Value: 30°C/W RθJC allows direct thermal coupling to heatsink pad, sustaining 3 A continuous output without forced air cooling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB350-E3/54 (Vishay) | Same 50 V VRRM, 3 A IO, but VF = 0.55 V typ @ 3 A (vs. 0.52 V typ for B350CE); RθJA = 75°C/W (vs. 70°C/W). | Slightly lower VF improves light-load efficiency; marginally higher thermal resistance limits high-ambient use. | Select for cost-sensitive consumer power supplies where 5°C junction rise is acceptable. |
| SS35-E3/57T (Vishay) | SMC package, 50 V, 3 A, VF = 0.52 V typ @ 3 A, but IR = 0.5 mA @ 50 V/25°C (vs. 0.1 mA for B350CE). | Higher leakage reduces suitability for battery-isolation or long-term standby; identical thermal performance. | Prefer for general-purpose rectification where leakage is not critical and footprint compatibility is required. |
Compared with SB350-E3/54 and SS35-E3/57T, B350CE-13 offers the tightest IR specification (0.1 mA) and lowest RθJA (70°C/W), making it optimal for thermally constrained, high-reliability industrial and automotive auxiliary power designs.
Availability
B350CE-13 is available at Aetrix Electronics and suitable for boost diode, blocking diode, and recirculating diode applications requiring stable component supply, consistent thermal performance, and RoHS-compliant manufacturing.
Supply support for B350CE-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, specializing in high-efficiency power management and signal integrity solutions for industrial, computing, and consumer markets.
The B350CE-13 belongs to Diodes' Schottky rectifier product line, engineered for high-current, low-loss rectification in space-constrained power conversion systems operating across wide temperature ranges.
FAQ
What is the maximum junction temperature for continuous operation?
The B350CE-13 has an operating junction temperature range of –55°C to +150°C. Continuous operation at 150°C requires strict thermal design: derated average current to ~1.3 A (per Figure 4), and use of ≥2 oz copper pads with thermal vias to internal planes to maintain RθJA ≤70°C/W.
Is B350CE-13 pin-compatible with B350BE-13?
Yes - both share identical SMC (B350CE-13) and SMB (B350BE-13) footprints and cathode-band polarity, but differ in thermal performance: B350CE-13 (SMC) offers lower RθJC (30°C/W vs. 50°C/W) and higher IFSM (80 A vs. 70 A), making it preferred for higher-power or thermally demanding layouts.
Does this part support reflow soldering per J-STD-020?
Yes - the B350CE-13 is rated Moisture Sensitivity Level 1 per J-STD-020, meaning it may be stored indefinitely at ≤30°C/85% RH and withstand standard Pb-free reflow profiles (peak 260°C, 20–40 sec) without baking or special handling.
Can B350CE-13 replace a 1N5822 in existing designs?
Yes - as a direct SMC-package upgrade to the through-hole 1N5822 (3 A, 40 V), B350CE-13 provides higher VRRM (50 V), lower VF (0.65 V vs. 0.9 V), and surface-mount compatibility; verify layout clearance for SMC dimensions and adjust thermal pad area to match RθJA requirements.
B350CE-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AB, SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 650 mV @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 50 V
- Capacitance @ Vr, F:
- 110pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMC
- Operating Temperature - Junction:
- -55°C ~ 150°C
B350CE-13 FAQ
1.How can I place an order for B350CE-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for B350CE-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 B350CE-13 reliable?
The price and inventory of B350CE-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for B350CE-13 is usually 5 days.
3.What payment methods are accepted for B350CE-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B350CE-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for B350CE-13?
B350CE-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your B350CE-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 B350CE-13?
For technical support, including B350CE-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B350CE-13 requirements.
6.How does Aetrix verify that B350CE-13 is sourced from the original manufacturer or authorized distributors?
All B350CE-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 B350CE-13 meets industry standards.
7.What is the process for return or replacement of B350CE-13?
All B350CE-13 units undergo pre-shipment inspection (PSI). If there is an issue with B350CE-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 B350CE-13 part is unused and in its original packaging.
Return procedure for B350CE-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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