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Diodes Incorporated B1100LB-13
- Part No.:
- B1100LB-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
B1100LB-13.pdf
- Description:
- DIODE SCHOTTKY 100V 2A SMB
- Quantity:
- Payment:
- Shipping:
Inventory:3,107
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Product details
Overview
B1100LB-13 from Diodes Incorporated is a 1.0A, 100V peak repetitive reverse voltage Schottky barrier rectifier in SMB package, featuring low forward voltage drop (≤0.75V @ 1.0A), 50A non-repetitive surge rating, and RoHS-compliant lead-free plating-designed for low-voltage, high-frequency inverters and polarity protection circuits.
For engineers reviewing the B1100LB-13 datasheet, B1100LB-13 pinout, B1100LB-13 application, or B1100LB-13 equivalent, key selection criteria include VF derating at elevated temperature, thermal resistance (RθJT = 22°C/W), junction-to-terminal thermal path, and cathode-band polarity marking for automated assembly verification.
Technical Context
This Schottky rectifier uses guard ring die construction to enhance transient immunity and suppress avalanche-induced failure during inductive switching events. Its low VF and fast recovery (<10ns) minimize conduction and switching losses in DC-DC converters and freewheeling paths.
Rated for 100°C terminal temperature operation with 2.0A average current derating, it supports high-density PCB layouts via SMB surface-mount packaging and withstands 260°C/10s soldering per MIL-STD-202. Total capacitance remains ≤100pF at 4V reverse bias, enabling stable performance in high-frequency rectification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse voltage before breakdown; defines safe blocking range in 12–48V bus polarity protection |
| IF(AV) | 1.0 A @ TT = 120°C - Continuous DC output current capability under thermally constrained conditions |
| VF | ≤0.75 V @ IF = 1.0A - Low conduction loss reduces heat generation in compact power supplies |
| IFSM | 50 A @ 8.3ms - Withstands motor startup surges and inductive kickback without permanent degradation |
| RθJT | 22 °C/W - Junction-to-terminal thermal resistance enables direct heatsinking through PCB copper pour |
| CT | ≤100 pF @ VR = 4V, f = 1MHz - Minimal capacitive loading preserves signal integrity in high-frequency flyback snubbers |
Pinout & Package
Package: SMB (Surface Mount Small Outline), molded plastic case with UL 94V-0 flammability rating, cathode band marking, and matte tin-plated terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., ground or return path) in reverse polarity protection |
| Cathode | Forward current exit / reverse blocking node | Marked with band/notch; ties to positive rail in freewheeling diode configuration |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Suppresses edge leakage and improves ESD/transient robustness without external TVS |
| Low VF (≤0.75V @ 1A) | Reduces power dissipation by >30% vs. standard PN rectifiers at same current, easing thermal design |
| 260°C/10s solder tolerance | Enables compatibility with lead-free reflow profiles without delamination or plating damage |
| Green molding compound | Halogen- and antimony-free encapsulation meets IEC 61249-2-21 and JEDEC J-STD-020 standards |
Applications
| DC-DC Converter Freewheeling Diode | Reverse Polarity Protection |
|---|---|
Use Scenario: Used across synchronous buck converter low-side switch to recirculate inductor current during off-time. IC Role / Device Role / Timing Role: Freewheeling diode providing continuous current path during MOSFET off-state; operates at switching frequency (100kHz–1MHz). Use Value: Low VF minimizes conduction loss and improves efficiency; fast recovery avoids reverse recovery charge injection into control loop. | Use Scenario: Placed in series with input power rail to block reverse connection of 12V/24V battery or adapter. IC Role / Device Role / Timing Role: Unidirectional current gate; conducts only when anode > cathode by ≥0.3V. Use Value: 100V VRRM provides 2× margin over 24V systems; SMB footprint saves board space vs. axial DO-41. |
| High-Frequency Inverter Output Rectifier | Low-Voltage AC/DC Adapter Output Stage |
Use Scenario: Rectifies 20–100kHz square-wave output from resonant LLC inverter in LED drivers. IC Role / Device Role / Timing Role: High-speed unidirectional rectifier handling bidirectional voltage reversal at high dv/dt. Use Value: ≤100pF CT limits displacement current; guard ring prevents localized breakdown under fast transients. | Use Scenario: Final-stage output rectifier in 5V/3A wall adapter with active clamp flyback topology. IC Role / Device Role / Timing Role: Delivers regulated DC output while absorbing transformer leakage energy during reset. Use Value: 50A IFSM handles startup surges; RθJT = 22°C/W allows direct thermal coupling to ground plane for passive cooling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS110-E3/5AT (Vishay) | Same SMB package, 100V VRRM, but VF = 0.85V @ 1A (13% higher); RθJT = 25°C/W | Slightly higher conduction loss limits use in thermally constrained 120°C ambient designs | Select if supply chain diversification required and 0.1V VF increase is acceptable |
| MBR1100 (ON Semiconductor) | SMB package, identical 100V/1A ratings, but VF = 0.72V typ (0.03V lower); RoHS-compliant but not green compound | Better efficiency at light load; lacks halogen-free molding compound for strict environmental compliance | Prefer for highest efficiency in battery-powered systems where material compliance is secondary |
Compared with SS110-E3/5AT and MBR1100, B1100LB-13 offers balanced trade-offs: lowest thermal resistance among the three (22°C/W), guaranteed green compound, and tighter VF max specification-making it optimal for industrial adapters requiring both thermal headroom and environmental certification.
Availability
B1100LB-13 is available at Aetrix Electronics and suitable for DC-DC converters, reverse polarity protection circuits, high-frequency inverters, and low-voltage AC/DC adapters requiring stable component supply and long-term manufacturability.
Supply support for B1100LB-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-reliability power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.
The B1100LB belongs to Diodes' high-voltage Schottky rectifier product line, engineered for efficiency-critical, high-frequency power conversion where low VF, robust surge handling, and automated assembly compatibility are mandatory.
FAQ
What is the maximum junction temperature for continuous operation?
The B1100LB-13 has an operating junction temperature range of –65°C to +175°C. For continuous 1.0A average current, the terminal temperature must be held at ≤120°C per the derating curve; exceeding this requires thermal design adjustments such as increased copper area or forced airflow to maintain TJ < 175°C.
Does the cathode band indicate pin 1 or polarity orientation?
Yes-the cathode band marks the cathode terminal, which is the output/anode-referenced side in forward conduction. In PCB layout, the band aligns with the cathode pad; no "pin 1" designation applies as it is a two-terminal device. Polarity must be verified during automated optical inspection (AOI) to prevent reverse installation.
Can B1100LB-13 replace a standard PN rectifier like 1N4007?
No-it is not a direct replacement. While both handle 1A, the B1100LB-13 is a Schottky with 100V VRRM and ~0.75V VF, whereas the 1N4007 is a PN rectifier with 1000V VRRM and ~1.1V VF. Substitution is only valid in low-voltage (≤50V), high-efficiency applications where reverse voltage stress is <100V and fast switching is needed.
Is the 50A surge rating applicable for repetitive events?
No-the 50A rating is strictly non-repetitive (single 8.3ms half-sine wave). Repetitive surges must follow the I²t limit derived from Fig. 4: e.g., 20A surges are allowed up to ~10 cycles at 60Hz. Exceeding single-event energy or repetition rate risks metallization fatigue and bond wire failure.
B1100LB-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 750 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 100 V
- Capacitance @ Vr, F:
- 100pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
- Operating Temperature - Junction:
- -65°C ~ 175°C
B1100LB-13 FAQ
1.How can I place an order for B1100LB-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for B1100LB-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 B1100LB-13 reliable?
The price and inventory of B1100LB-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for B1100LB-13 is usually 5 days.
3.What payment methods are accepted for B1100LB-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B1100LB-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for B1100LB-13?
B1100LB-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your B1100LB-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 B1100LB-13?
For technical support, including B1100LB-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B1100LB-13 requirements.
6.How does Aetrix verify that B1100LB-13 is sourced from the original manufacturer or authorized distributors?
All B1100LB-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 B1100LB-13 meets industry standards.
7.What is the process for return or replacement of B1100LB-13?
All B1100LB-13 units undergo pre-shipment inspection (PSI). If there is an issue with B1100LB-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 B1100LB-13 part is unused and in its original packaging.
Return procedure for B1100LB-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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