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Diodes Incorporated SB5100-T
- Part No.:
- SB5100-T
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
SB5100-T.pdf
- Description:
- SCHOTTKY DO201 100V 5A 150C
- Quantity:
- Payment:
- Shipping:
Inventory:8,415
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Product details
Overview
SB5100-T 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 typical junction capacitance. It serves as a low-loss freewheeling or polarity protection diode in DC-DC converters and AC/DC front-end rectification stages.
For engineers reviewing the SB5100-T datasheet, SB5100-T pinout, SB5100-T application, or SB5100-T equivalent, key selection criteria include forward voltage drop at rated current, thermal resistance (10 K/W), peak reverse voltage margin, surge robustness (150A @ 8.3ms), and RoHS-compliant tin-plated leads for lead-free assembly.
Technical Context
This Schottky rectifier uses guard ring die construction to enhance transient immunity and suppress leakage under high-temperature reverse bias. Its low VF and fast switching enable high-efficiency operation in 60Hz–100kHz power conversion topologies without minority-carrier recovery delay.
Designed for single-phase, half-wave rectification with resistive or inductive loads, it requires 20% current derating for capacitive loads. Junction-to-ambient thermal resistance of 10 K/W supports operation up to +150°C junction temperature when mounted on standard PCB copper areas.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in polarity protection and flyback clamp circuits. |
| IO | 5.0 A @ TL = 80°C - Continuous average forward current rating; determines heatsink or trace sizing in power supply output stages. |
| VFM | 0.80 V @ IF = 5.0 A - Forward voltage drop directly impacts conduction loss and thermal rise in high-current paths. |
| IFSM | 150 A @ 8.3 ms - Peak surge rating per JEDEC method; enables reliable startup and fault tolerance in motor drives and inverters. |
| Cj | 400 pF @ 4.0 V, 1.0 MHz - Junction capacitance affects high-frequency switching noise and EMI filter design in SMPS applications. |
| RJA | 10 K/W - Thermal resistance from junction to ambient; used to calculate temperature rise with known power dissipation and PCB layout. |
Pinout & Package
DO-201AD axial-leaded plastic package with cathode band marking; body dimensions: 25.4 mm length (A), 7.2–9.5 mm diameter (B), 1.2–1.3 mm lead diameter (C), 4.8–5.3 mm lead spacing (D). Leads are bright tin-plated and solderable per MIL-STD-202, Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side (e.g., ground or return path) in freewheeling or reverse polarity protection configurations. |
| Cathode | Current exit point during forward conduction; marked by band | Connected to higher-potential node (e.g., input rail or switch node); polarity marking prevents incorrect installation in safety-critical circuits. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Improves transient voltage immunity and reduces leakage current drift at elevated temperatures (≤50 mA @ 100°C). |
| Low forward voltage (0.80 V) | Reduces conduction loss by ~30% vs. comparable silicon rectifiers, lowering thermal load in compact 5A power rails. |
| 150A surge rating | Supports inrush current handling in industrial power supplies without external fusing or derating. |
| RoHS-compliant tin plating | Enables compatibility with lead-free reflow profiles (peak ≤260°C) and eliminates post-solder cleaning requirements. |
Applications
| DC-DC Converter Freewheeling | AC/DC Input Rectification |
|---|---|
Use Scenario: Used as secondary-side freewheeling diode in non-synchronous buck converters delivering 3.3V/5V at 3–5A. IC Role / Device Role / Timing Role: Provides low-loss current path during high-side MOSFET off-time; no switching timing control required. Use Value: 0.80V VF minimizes power loss (≤4W at 5A), reducing heatsink need and improving efficiency above 88% at full load. | Use Scenario: Front-end rectifier in offline 12V/5A adapter with bridge configuration and bulk capacitor input. IC Role / Device Role / Timing Role: Converts AC line to pulsating DC; operates at 50/60Hz with minimal reverse recovery loss. Use Value: 100V VRRM provides 2× safety margin over 120V RMS input, enabling robust operation across global mains voltages. |
| Polarity Protection Circuit | Motor Drive Flyback Clamp |
Use Scenario: Reverse-voltage protection diode in 24V automotive control module input stage. IC Role / Device Role / Timing Role: Blocks reverse connection while conducting forward current; no active control or timing function. Use Value: 5.0A continuous rating supports hot-swap insertion and load dump transients without latch-up or thermal runaway. | Use Scenario: Snubber diode across relay coil or brushed DC motor terminals in industrial PLC output modules. IC Role / Device Role / Timing Role: Clamps inductive kickback energy to safe voltage levels during switch-off transitions. Use Value: 150A IFSM withstands repeated 100A+ flyback spikes, extending relay contact life and preventing MOSFET avalanche 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 VRRM, 5A IO, but higher VF (0.85V @ 5A) and 12 K/W RJA. | Slightly lower efficiency and higher thermal rise in space-constrained layouts. | Preferred where Vishay's qualification history in automotive-grade designs is required. |
| MBR5100CT (ON Semiconductor) | Dual common-cathode configuration (2×5A), 100V, VF = 0.82V; requires different footprint and routing. | Enables dual-rail or redundant rectification but increases board area and BOM count. | Select when dual-output or redundancy is needed; not a direct replacement for single-diode use cases. |
Compared with SS510-E3/57T and MBR5100CT, SB5100-T offers the lowest forward voltage and best thermal resistance in a single-diode DO-201AD package, making it optimal for cost-sensitive, thermally constrained 5A rectification where footprint and simplicity are prioritized.
Availability
SB5100-T is available at Aetrix Electronics and suitable for DC-DC converter freewheeling, AC/DC input rectification, and polarity protection applications requiring stable component supply and consistent tape-and-reel delivery.
Supply support for SB5100-T 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-reliability power management and signal integrity solutions for industrial, computing, and consumer markets.
The SBx100 series targets high-current, low-VF rectification in cost-optimized power supplies and protection circuits, balancing surge robustness, thermal performance, and RoHS compliance.
FAQ
What is the maximum allowable junction temperature for SB5100-T?
The SB5100-T has an operating junction temperature range of –65°C to +150°C. Sustained operation above +125°C requires thermal design verification using its 10 K/W RJA and actual power dissipation, as derating curves show IO drops to ~3.5A at TL = 100°C.
Is SB5100-T suitable for high-frequency switching applications like PFC stages?
No - SB5100-T is optimized for 50/60Hz to ~100kHz operation. Its 400pF junction capacitance and lack of specified reverse recovery time make it unsuitable for >200kHz boost PFC where low-Cj and controlled Qrr are critical; consider ultrafast or SiC alternatives instead.
How does the DO-201AD package affect PCB layout and thermal performance?
The DO-201AD axial package relies on lead conduction and PCB copper area for heat dissipation. To achieve the rated 5.0A, ≥1 cm² of 2-oz copper connected to both leads is recommended; thermal vias under pads further reduce RJA below the datasheet's 10 K/W baseline.
Can SB5100-T replace SB590-T in an existing design?
Yes - SB5100-T is a direct upgrade from SB590-T (90V VRRM) with identical package, pinout, and thermal characteristics. The 10V higher blocking voltage improves margin in 120VAC-derived rails but does not affect forward performance or layout.
SB5100-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-201AD, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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-T FAQ
1.How can I place an order for SB5100-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SB5100-T 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-T reliable?
The price and inventory of SB5100-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SB5100-T is usually 5 days.
3.What payment methods are accepted for SB5100-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SB5100-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SB5100-T?
SB5100-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SB5100-T 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-T?
For technical support, including SB5100-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SB5100-T requirements.
6.How does Aetrix verify that SB5100-T is sourced from the original manufacturer or authorized distributors?
All SB5100-T 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-T meets industry standards.
7.What is the process for return or replacement of SB5100-T?
All SB5100-T units undergo pre-shipment inspection (PSI). If there is an issue with SB5100-T, 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-T part is unused and in its original packaging.
Return procedure for SB5100-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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