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

Diodes Incorporated SB5100-B

Name: SB5100-B
Brand: Diodes Incorporated
SKU: SB5100-B
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SB5100-B

Manufacturer:: Diodes Incorporated

Category:: Single Diodes

Package:: DO-201AD, Axial

Datasheet:: SB5100-B.pdf

Description:: DIODE SCHOTTKY 100V 5A DO201AD

Quantity:: RFQ Add To RFQ list

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Inventory:4,792

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Product details

Overview

SB5100-B from Diodes Incorporated is a 5.0A, 100V Schottky barrier rectifier in DO-201AD package, featuring 0.80V forward voltage at 5.0A, 150A non-repetitive surge capability, and 400pF junction capacitance - optimized for low-voltage, high-frequency inverters and polarity protection circuits.

For engineers reviewing the SB5100-B datasheet, SB5100-B pinout, SB5100-B application, or SB5100-B equivalent, key selection criteria include peak reverse voltage (100V), average forward current (5.0A @ TL=80°C), thermal resistance (10K/W), surge rating (150A), and RoHS-compliant tin-plated leads.

Technical Context

This Schottky rectifier uses guard ring die construction to enhance transient protection and withstand repetitive voltage spikes. Its low V_F (0.80V) and high I_FSM (150A) support efficient power conversion in switching topologies with minimal conduction loss.

Designed for single-phase, half-wave 60Hz operation with resistive or inductive loads, it requires 20% current derating under capacitive loading. Junction-to-ambient thermal resistance is fixed at 10K/W, enabling predictable thermal management in PCB-mounted applications.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	100V - maximum peak repetitive reverse voltage; defines safe blocking range in DC/AC line applications
I_O	5.0A @ T_L=80°C - continuous average forward current rating at lead temperature; sets usable DC output capacity
V_FM	0.80V @ I_F=5.0A - forward voltage drop; determines conduction loss and self-heating at rated load
I_FSM	150A (8.3ms half-sine) - non-repetitive surge current; supports motor startup and inrush immunity
C_j	400pF @ 4V, 1MHz - junction capacitance; impacts high-frequency switching noise and EMI filtering design
R_JA	10K/W - thermal resistance from junction to ambient; enables direct PCB trace thermal modeling without heatsink

Pinout & Package

DO-201AD axial-leaded plastic package with cathode band marking; body length 25.4mm, diameter 7.2–9.5mm, lead spacing 4.8–5.3mm.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 1)	Forward current entry point	Connected to input/source side; must handle full load current and surge transients
Cathode (Lead 2, banded end)	Forward current exit point	Connected to output/load side; polarity marking ensures correct orientation in reverse-biased protection

Key Features

Feature	Design Value
Guard ring die construction	Improves transient voltage immunity and prevents edge breakdown during fast dv/dt events
Low forward voltage (0.80V)	Reduces power dissipation by ~30% vs. comparable 1N5822 at 5A, lowering thermal stress
150A surge rating	Withstands single-cycle inrush currents in DC-DC input stages without degradation
RoHS-compliant bright tin plating	Ensures reliable solderability per MIL-STD-202 Method 208 and compatibility with lead-free reflow

Applications

DC-DC Converter Input Stage

Automotive Polarity Protection

Use Scenario: Used as input rectifier in 12V-to-5V buck converter front-end with 5A nominal load.

IC Role / Device Role / Timing Role: Schottky rectifier providing unidirectional current path and minimizing conduction loss.

Use Value: 0.80V V_F reduces power loss to 4.0W vs. 6.5W for standard PN diode, easing thermal design.

Use Scenario: Installed across battery terminals in vehicle infotainment module to prevent damage from reverse connection.

IC Role / Device Role / Timing Role: Polarity protection diode conducting only during correct installation.

Use Value: 100V V_RRM tolerates load dump transients up to 120V, meeting ISO 7637-2 Pulse 5a requirements.

High-Frequency Inverter Output

Industrial Free-Wheeling Diode

Use Scenario: Output rectifier in 20kHz resonant LLC inverter powering LED signage.

IC Role / Device Role / Timing Role: High-speed recovery rectifier handling rapid polarity reversal.

Use Value: 400pF C_j limits displacement current during switching transitions, reducing EMI generation.

Use Scenario: Freewheeling path for 24V solenoid driver in PLC output module.

IC Role / Device Role / Timing Role: Clamp diode absorbing inductive kickback energy during MOSFET turn-off.

Use Value: 150A I_FSM safely dissipates 30mJ energy pulses without bond wire failure.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SS510-E3/57T (Vishay)	Same 100V V_RRM, but 0.85V V_F at 5A and 120A I_FSM	Lower surge margin; less suitable for high-inrush solenoid drivers	Select when tighter V_F tolerance required and surge events are infrequent
MBR5100CT (ON Semiconductor)	Dual common-cathode configuration, 5A per anode, 100V rating, TO-220AB package	Requires heatsinking; not drop-in for axial DO-201AD footprint	Choose for dual-output systems needing shared cathode topology and higher thermal mass

Compared with SS510-E3/57T, SB5100-B offers +10A surge headroom and lower V_F; versus MBR5100CT, it provides direct axial replacement without board redesign but lacks dual-anode flexibility.

Availability

SB5100-B is available at Aetrix Electronics and suitable for DC-DC converters, automotive polarity protection, high-frequency inverters, and industrial free-wheeling circuits requiring stable component supply and RoHS-compliant sourcing.

Supply support for SB5100-B 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 and manufacturing operations across Asia and the US.

The SBx100 series targets cost-sensitive, high-volume power rectification applications where low V_F, robust surge capability, and axial package compatibility are prioritized over ultra-low leakage or ultra-high frequency performance.

FAQ

What is the maximum operating temperature for SB5100-B?

The SB5100-B has an operating junction temperature range of –65°C to +150°C. Its average forward current rating drops linearly above 80°C lead temperature, reaching zero at approximately 150°C junction temperature per the derating curve in Figure 1 of the datasheet.

Is SB5100-B suitable for use in capacitive-load applications?

Yes, but with mandatory 20% current derating per the datasheet note. At full rated 5.0A average current, capacitive loads require limiting to 4.0A to avoid excessive peak charging currents that could exceed the 150A surge rating or accelerate junction degradation.

Does SB5100-B have a specified reverse recovery time (t_rr)?

No - as a Schottky barrier rectifier, SB5100-B exhibits majority-carrier conduction and has no measurable reverse recovery time. Its switching behavior is governed by junction capacitance (400pF) and series resistance, not minority-carrier storage delay.

Can SB5100-B replace SB590-B in an existing design?

Yes, with improved voltage margin: SB5100-B (100V V_RRM) replaces SB590-B (90V V_RRM) directly in DO-201AD footprint. No layout change is needed, and the higher blocking voltage adds safety margin against line transients without affecting forward characteristics.

SB5100-B Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: DO-201AD, Axial

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Technology:: Schottky

Voltage - DC Reverse (Vr) (Max):: 100 V

Current - Average Rectified (Io):: 5A

Voltage - Forward (Vf) (Max) @ If:: 800 mV @ 5 A

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 500 µA @ 100 V

Capacitance @ Vr, F:: 400pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-201AD

Operating Temperature - Junction:: -65°C ~ 150°C

SB5100-B FAQ

1.How can I place an order for SB5100-B through Aetrix?

Please submit a Request for Quotation (RFQ) for SB5100-B 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 SB5100-B reliable?

The price and inventory of SB5100-B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SB5100-B is usually 5 days.

3.What payment methods are accepted for SB5100-B?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SB5100-B transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SB5100-B?

SB5100-B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SB5100-B 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 SB5100-B?

For technical support, including SB5100-B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SB5100-B requirements.

6.How does Aetrix verify that SB5100-B is sourced from the original manufacturer or authorized distributors?

All SB5100-B 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 SB5100-B meets industry standards.

7.What is the process for return or replacement of SB5100-B?

All SB5100-B units undergo pre-shipment inspection (PSI). If there is an issue with SB5100-B, 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 SB5100-B part is unused and in its original packaging.

Return procedure for SB5100-B:

1.Submit a request within 90 days.

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

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