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Diodes Incorporated B1100LB-13-F
- Part No.:
- B1100LB-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
B1100LB-13-F.pdf
- Description:
- DIODE SCHOTTKY 100V 1A SMB
- Quantity:
- Payment:
- Shipping:
Inventory:92,190
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Product details
Overview
B1100LB-13-F from Diodes Incorporated is a 1.0A, 100V peak repetitive reverse voltage Schottky barrier rectifier in SMB package, featuring low forward voltage drop (≤0.75 V at 1.0 A), 50 A non-repetitive surge rating, and RoHS-compliant lead-free plating - used for polarity protection and free-wheeling in DC-DC converters and low-voltage inverters.
For engineers reviewing the B1100LB-13-F datasheet, B1100LB-13-F pinout, B1100LB-13-F application, or B1100LB-13-F equivalent, key selection criteria include VF derating at elevated temperature, thermal resistance (RθJT = 22°C/W), junction-to-terminal thermal path integrity, and cathode-band polarity identification for automated placement.
Technical Context
This Schottky rectifier employs guard ring die construction to enhance transient voltage immunity and suppress leakage under high dv/dt conditions. Its low VF enables high-efficiency operation in 5–24 V output switching power supplies where conduction loss dominates thermal budget.
Designed for surface-mount assembly on PCBs with SMB footprint, it supports reflow soldering up to 260°C/10 s and exhibits capacitance of ≤100 pF at 4 V reverse bias - critical for minimizing switching node ringing in high-frequency (>100 kHz) flyback and buck topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum reverse blocking capability without breakdown; sets upper limit for input voltage rails in 48 V systems. |
| IF(AV) | 1.0 A @ TT = 120°C - Continuous DC current rating under thermal-limited terminal temperature; defines minimum heatsinking requirement. |
| VF | ≤0.75 V @ IF = 1.0 A, TA = 25°C - Low conduction loss reduces I²R heating; improves efficiency by ~2–3% vs. standard PN diodes in 12 V buck converters. |
| IFSM | 50 A @ 8.3 ms half-sine - Withstands inrush and fault currents during startup or short-circuit events in industrial power modules. |
| RθJT | 22 °C/W - Junction-to-terminal thermal resistance; enables direct thermal coupling to copper pour or metal-core PCB for passive cooling. |
| CT | ≤100 pF @ VR = 4 V, f = 1 MHz - Low junction capacitance minimizes reverse recovery charge and EMI generation in >200 kHz switching applications. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount plastic case with cathode band marking; dimensions: 4.3 mm × 2.5 mm × 2.3 mm (L × W × H); UL 94V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side (e.g., switch node in buck converter); requires adequate copper area for thermal dissipation. |
| Cathode | Current exit point; marked with band/notch | Connected to higher-potential rail (e.g., output capacitor positive); polarity must match PCB silkscreen to prevent reverse bias failure. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Improves surge immunity and stabilizes leakage current under fast transients (e.g., load dump in automotive 12 V systems). |
| Lead-free, RoHS-compliant plating | Enables compliance with EU Directive 2002/95/EC and supports Pb-free reflow profiles without solder joint reliability degradation. |
| Green molding compound (halogen-free) | Meets IEC 61249-2-21 requirements; eliminates corrosive halogen emissions during PCB assembly and end-of-life incineration. |
| 260°C/10 s solderability | Validated per MIL-STD-202, Method 208; ensures robust terminal wetting in high-throughput SMT lines using lead-free solder paste. |
Applications
| DC-DC Converter Output Rectification | Automotive Body Control Module (BCM) Polarity Protection |
|---|---|
Use Scenario: Used as synchronous rectifier replacement in 5–12 V isolated flyback converters delivering ≤10 W to microcontrollers and sensors. IC Role / Device Role / Timing Role: Unidirectional current valve enabling efficient energy transfer during secondary-side conduction phase. Use Value: 0.75 V VF reduces conduction loss by 40% vs. 1N5819, lowering thermal stress on compact PCB layouts. | Use Scenario: Installed across battery input terminals in BCMs to prevent damage from reverse battery connection during service. IC Role / Device Role / Timing Role: Reverse polarity protection diode conducting only during correct installation; blocks current if battery leads are swapped. Use Value: 50 A IFSM withstands momentary arcing during misconnection, avoiding fuse blowout and system downtime. |
| Industrial AC-DC Adapter Free-Wheeling | Low-Voltage Solar Charge Controller Input Clamp |
Use Scenario: Placed across relay coils or inductive loads in 24 V industrial adapters to suppress back-EMF spikes. IC Role / Device Role / Timing Role: Freewheeling path for stored magnetic energy during switch-off transitions. Use Value: Guard ring structure limits voltage overshoot to <120 V during 100 ns transients, protecting MOSFET gate drivers. | Use Scenario: Connected between PV panel input and MPPT controller to clamp reverse current during partial shading or night-time leakage. IC Role / Device Role / Timing Role: Blocking diode preventing battery discharge through panel junctions at night. Use Value: ≤5.0 mA IR at 100°C ensures <100 µW standby loss in 24 V battery banks, extending self-discharge time by >15 days. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS110-TP from Micro Commercial Components | Same SMB package, 1.0 A/100 V rating, but VF = 0.85 V @ 1.0 A and RθJT = 25°C/W. | Higher conduction loss increases thermal rise by ~5°C at full load; less suitable for thermally constrained enclosures. | Select when cost sensitivity outweighs 0.1 V VF penalty and board-level thermal margin exceeds 10°C. |
| SB1100-E3/5AT from Vishay | SMB package, identical 1.0 A/100 V rating, VF = 0.72 V (slightly lower), but IR = 1.0 mA @ 100 V, TA = 25°C. | Lower leakage improves dark-current performance in solar clamping; tighter VF tolerance benefits precision efficiency modeling. | Prefer for solar or battery-backed systems where sub-mA leakage directly impacts standby runtime. |
Compared with SS110-TP and SB1100-E3/5AT, B1100LB-13-F offers balanced VF/IR trade-off and superior surge robustness (50 A vs. 30–40 A), making it optimal for industrial power supplies subject to frequent load transients.
Availability
B1100LB-13-F is available at Aetrix Electronics and suitable for DC-DC converter output rectification, automotive polarity protection, industrial freewheeling circuits, and solar charge controller clamping requiring stable component supply and consistent SMB footprint compatibility.
Supply support for B1100LB-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 and manufacturing operations across Asia and the Americas.
The B1100LB belongs to Diodes' high-reliability Schottky rectifier product line, engineered for efficiency-critical power conversion in automotive, industrial, and consumer power supplies operating up to 175°C junction temperature.
FAQ
What is the maximum allowable junction temperature for continuous operation?
The B1100LB-13-F has an operating temperature range of –65°C to +175°C for both junction and storage. For reliable long-term operation, junction temperature must remain ≤175°C under worst-case power dissipation and ambient conditions, verified using RθJT = 22°C/W and measured terminal temperature.
Does this device require a heatsink in typical 1.0 A applications?
No external heatsink is required if the PCB provides ≥100 mm² of 2-oz copper connected to both terminals. At 1.0 A and 25°C ambient, junction temperature rise is ~22°C above terminal temperature - well within limits when terminal temperature stays ≤153°C per derating curve.
How is polarity identified on the B1100LB-13-F package?
Polarity is marked by a visible cathode band on the body and optionally a cathode notch on the bottom edge. The cathode terminal is electrically connected to the banded side; orientation must match the PCB silkscreen to ensure correct forward bias during operation.
Can B1100LB-13-F replace a 1N5819 in existing designs?
Yes - B1100LB-13-F shares the same SMB footprint and electrical ratings (1.0 A, 100 V), with lower VF (0.75 V vs. 0.9 V typical) and higher IFSM (50 A vs. 25 A). No layout change is needed, but verify thermal performance due to higher peak surge energy absorption.
B1100LB-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io):
- 1A
- 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-F FAQ
1.How can I place an order for B1100LB-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for B1100LB-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 B1100LB-13-F reliable?
The price and inventory of B1100LB-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 B1100LB-13-F is usually 5 days.
3.What payment methods are accepted for B1100LB-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B1100LB-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for B1100LB-13-F?
B1100LB-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your B1100LB-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 B1100LB-13-F?
For technical support, including B1100LB-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B1100LB-13-F requirements.
6.How does Aetrix verify that B1100LB-13-F is sourced from the original manufacturer or authorized distributors?
All B1100LB-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 B1100LB-13-F meets industry standards.
7.What is the process for return or replacement of B1100LB-13-F?
All B1100LB-13-F units undergo pre-shipment inspection (PSI). If there is an issue with B1100LB-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 B1100LB-13-F part is unused and in its original packaging.
Return procedure for B1100LB-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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