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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Diodes Incorporated B350-13-F

Name: B350-13-F
Brand: Diodes Incorporated
SKU: B350-13-F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: B350-13-F

Manufacturer:: Diodes Incorporated

Category:: Single Diodes

Package:: DO-214AB, SMC

Datasheet:: B350-13-F.pdf

Description:: DIODE SCHOTTKY 50V 3A SMC

Quantity:: RFQ Add To RFQ list

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Inventory:22,843

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Product details

Overview

B350-13-F from Diodes Incorporated is a 3.0A surface-mount Schottky barrier rectifier with 50V peak repetitive reverse voltage (V_RRM), 0.70V maximum forward voltage at 3.0A, and 0.1mA maximum reverse leakage at 25°C. It features guard ring die construction for transient protection, surge rating up to 100A peak (8.3ms half-sine), and is optimized for low-voltage, high-frequency polarity protection and freewheeling in DC power supplies.

For engineers reviewing the B350-13-F datasheet, B350-13-F pinout, B350-13-F application, or B350-13-F equivalent, key selection criteria include its SMC package thermal resistance (R_θJT = 20°C/W), RoHS-compliant matte tin plating, JEDEC-qualified reliability, and suitability for automotive-grade designs when specified as B350Q-13-F.

Technical Context

This Schottky rectifier employs a planar guard ring structure to suppress edge breakdown and improve transient robustness under repetitive surge conditions. Its low forward voltage drop and fast switching speed stem from metal–semiconductor junction physics, eliminating minority carrier storage delay.

Designed for surface-mount assembly on FR-4 PCBs with 2×3mm copper pads, it delivers stable performance across –55°C to +150°C operating range and exhibits 200pF typical junction capacitance at 4V reverse bias - critical for high-frequency snubberless flyback and synchronous rectification topologies.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	50 V - Maximum DC blocking capability without avalanche conduction in reverse bias
I_O	3.0 A - Continuous average forward current rating at T_A = +25°C with derating above 25°C
V_F Max	0.70 V @ 3.0A - Low conduction loss enabling >92% efficiency in 5–12V output DC/DC stages
I_R Max	0.1 mA @ 50V, 25°C - Minimal standby power drain in battery-backed polarity protection circuits
I_FSM	100 A (8.3ms) - Withstands inrush surges from capacitive loads or motor startup transients
R_θJT	20 °C/W - Enables direct thermal coupling to heatsinked PCB copper for sustained 2.5A operation
Package	SMC (DO-214AB) - Standardized 7.75×6.60mm outline compatible with automated pick-and-place and reflow

Pinout & Package

SMC (DO-214AB) package with cathode band marking; two-terminal device (anode and cathode) in molded green plastic housing rated UL 94V-0. Weight: 0.21 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to input/source side of rectification path; must withstand full load current and surge
Cathode	Forward current exit / reverse blocking terminal	Marked with band; connects to output/load; reverse voltage applied here during off-state

Key Features

Feature	Design Value
Guard ring die construction	Suppresses edge breakdown and improves surge survivability beyond standard Schottky limits
Low V_F & high I_O ratio	Enables compact 3A rectification in space-constrained 12V automotive accessory modules
100A non-repetitive surge rating	Eliminates need for external TVS in low-cost DC input protection against load dump transients
JEDEC-qualified reliability	Validated for industrial and automotive environments per AEC-Q200 stress test profiles
Lead-free, halogen-free "Green" finish	Complies with RoHS 3 (2015/863/EU) and meets IPC-J-STD-020 moisture sensitivity Level 1

Applications

Power Supply Polarity Protection

DC Motor Freewheeling

Use Scenario: Prevents damage from reversed DC input in 5–24V wall adapters and PoE-powered devices.

IC Role / Device Role / Timing Role: Unidirectional current gate placed between input connector and main regulator IC.

Use Value: Blocks reverse current with <0.1mA leakage, avoiding battery drain or LDO latch-up while adding <0.7V dropout.

Use Scenario: Suppresses inductive kickback in brushed DC motors used in HVAC actuators and printer mechanisms.

IC Role / Device Role / Timing Role: Fast-recovery freewheeling diode across motor terminals during PWM turn-off.

Use Value: Clamps 100A surge transients within 10ns, preventing MOSFET drain overvoltage and EMI generation.

Low-Voltage Inverter Output

USB-C Power Path Protection

Use Scenario: Rectifies high-frequency AC output (20–100kHz) from resonant LLC inverters in LED drivers.

IC Role / Device Role / Timing Role: Output-stage synchronous rectifier replacement in cost-sensitive 12V/3A lighting modules.

Use Value: Delivers 93% conversion efficiency at 3A due to 0.7V V_F, outperforming silicon diodes by 12% in thermal dissipation.

Use Scenario: Isolates upstream USB-C PD source from downstream 5V rail in portable medical monitors.

IC Role / Device Role / Timing Role: Reverse-current blocking element in Type-C power delivery path before buck converter.

Use Value: Ensures <1μA total system standby current via 0.1mA I_R spec, extending battery life in always-on diagnostics mode.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Schottky rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SS35-E3/57T (Vishay)	Same 50V V_RRM, 3A I_O, but V_F = 0.75V @ 3A; R_θJA = 100°C/W vs. 90°C/W	Slightly higher conduction loss; less thermally efficient on same PCB layout	Select if Vishay supply chain preference exists; verify thermal margin with 0.05V higher V_F
SB350-E3/57T (Vishay)	Identical V_RRM/I_O, but IR = 0.5mA @ 50V/25°C - 5× higher leakage than B350-13-F	Not suitable for ultra-low-power battery backup or energy harvesting nodes	Acceptable only where leakage <100nA is not required; avoid in always-on sensor systems

Compared with SS35-E3/57T and SB350-E3/57T, B350-13-F offers the lowest combination of forward voltage (0.70V), reverse leakage (0.1mA), and thermal resistance (20°C/W junction-to-terminal), making it optimal for thermally constrained, high-efficiency 3A rectification where leakage-critical operation is required.

Availability

B350-13-F is available at Aetrix Electronics and suitable for DC power supply polarity protection, motor freewheeling, low-voltage inverter outputs, and USB-C power path isolation requiring stable component supply and RoHS-compliant sourcing.

Supply support for B350-13-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.

The B320–B360 series belongs to Diodes' general-purpose Schottky rectifier product line, engineered for commercial and industrial power conversion applications demanding high surge tolerance, low forward loss, and automated assembly compatibility.

FAQ

What is the maximum junction temperature for continuous operation?

The B350-13-F supports continuous operation from –55°C to +150°C junction temperature. At ambient temperatures above 25°C, forward current must be derated per Figure 6 in DS30923 Rev. 13–2, reaching ~2.2A at 85°C ambient with standard PCB copper pad layout.

Is B350-13-F suitable for automotive applications?

The B350-13-F is qualified to industrial reliability standards and JEDEC specifications. For automotive use, Diodes offers the AEC-Q200-qualified B350Q-13-F variant with extended temperature screening and enhanced process controls - the -13-F version is not automotive-qualified.

How does the guard ring construction improve reliability?

The guard ring die structure reduces electric field crowding at the semiconductor edge, suppressing premature avalanche and improving resistance to repetitive surge events. This enables reliable 100A I_FSM handling without degradation over 10,000 cycles under defined test conditions.

What is the recommended PCB pad layout for thermal performance?

Diodes specifies a minimum 2×3mm copper pad per terminal for optimal thermal conduction. The SMC footprint should follow the suggested layout in DS30923 Rev. 13–2: X = 2.50mm, Y = 3.30mm, C = 6.90mm, G = 4.40mm, with solder mask defined to maximize copper exposure under the leads.

B350-13-F Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: DO-214AB, SMC

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Schottky

Voltage - DC Reverse (Vr) (Max):: 50 V

Current - Average Rectified (Io):: 3A

Voltage - Forward (Vf) (Max) @ If:: 700 mV @ 3 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 500 µA @ 50 V

Capacitance @ Vr, F:: 200pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SMC

Operating Temperature - Junction:: -55°C ~ 125°C

B350-13-F FAQ

1.How can I place an order for B350-13-F through Aetrix?

Please submit a Request for Quotation (RFQ) for B350-13-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 B350-13-F reliable?

The price and inventory of B350-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for B350-13-F is usually 5 days.

3.What payment methods are accepted for B350-13-F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B350-13-F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for B350-13-F?

B350-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your B350-13-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 B350-13-F?

For technical support, including B350-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B350-13-F requirements.

6.How does Aetrix verify that B350-13-F is sourced from the original manufacturer or authorized distributors?

All B350-13-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 B350-13-F meets industry standards.

7.What is the process for return or replacement of B350-13-F?

All B350-13-F units undergo pre-shipment inspection (PSI). If there is an issue with B350-13-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 B350-13-F part is unused and in its original packaging.

Return procedure for B350-13-F:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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