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Diodes Incorporated B1100-13
- Part No.:
- B1100-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
B1100-13.pdf
- Description:
- DIODE SCHOTTKY 100V 1A SMA
- Quantity:
- Payment:
- Shipping:
Inventory:3,370
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Product details
Overview
B1100-13 from Diodes Incorporated is a 1.0A, 100V high-voltage Schottky barrier rectifier in SMB package, featuring low forward voltage (0.79V @ 1A, 25°C), 30A surge rating, and guard-ring die construction for transient protection-used in low-voltage, high-frequency inverters and polarity protection circuits.
For engineers reviewing the B1100-13 datasheet, B1100-13 pinout, B1100-13 application, or B1100-13 equivalent, key selection criteria include peak reverse voltage (100V), average forward current (1.0A @ TT=125°C), thermal resistance (25 K/W), junction capacitance (80 pF @ 4V), and SMB package compatibility with automated assembly.
Technical Context
This Schottky rectifier employs a guard-ring die structure to enhance transient immunity and reduce leakage under high dv/dt conditions. Its low forward voltage drop and fast switching enable high-efficiency operation in high-frequency DC/DC converters and freewheeling paths.
Rated for 100V DC blocking and 70V RMS reverse voltage, it supports continuous conduction at 1.0A with terminal temperature up to 125°C. Junction-to-terminal thermal resistance of 25 K/W allows direct thermal coupling to PCB copper for passive cooling without heatsinks in moderate-power designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse voltage; defines safe operating limit in polarity protection and flyback clamp circuits. |
| IO | 1.0 A @ TT = 125°C - Continuous average forward current; derated linearly below 125°C per Fig. 1. |
| VFM | 0.79 V @ IF = 1.0A, TA = 25°C - Low conduction loss enables >92% efficiency in 5–12V output rectification stages. |
| IFSM | 30 A (8.3ms half-sine) - Withstands inrush and short-circuit surges common in SMPS startup and motor drive freewheeling. |
| RJT | 25 K/W - Enables direct PCB thermal path design; 25°C/W rise per watt allows ~2.5W dissipation before reaching 125°C terminal temp. |
| Cj | 80 pF @ VR = 4V, f = 1MHz - Low junction capacitance minimizes switching losses and EMI in >100kHz applications. |
Pinout & Package
SMB (DO-214AA) surface-mount plastic package with cathode band marking; terminals are solder-plated and compliant with MIL-STD-202, Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., switch node in buck converter); requires low-inductance layout to minimize ringing. |
| Cathode | Forward current exit / reverse-blocking terminal | Marked by band; ties to output rail or ground return; must maintain clean isolation from noisy traces to limit leakage. |
Key Features
| Feature | Design Value |
|---|---|
| Guard-ring die construction | Improves ruggedness against voltage transients and reduces IR drift during rapid dv/dt events in inverter bridges. |
| Low VFM (0.79V) | Reduces conduction loss by ~35% vs. comparable 1A silicon diodes, directly lowering thermal load in space-constrained layouts. |
| 30A IFSM rating | Supports reliable operation during cold-start surges in 12V automotive DC/DC modules without external fusing. |
| UL 94V-0 plastic case | Meets flammability requirements for industrial power supplies and enclosed consumer electronics enclosures. |
Applications
| DC/DC Converter Output Rectification | Automotive Polarity Protection |
|---|---|
Use Scenario: Secondary-side rectification in 5–24V isolated flyback or forward converters powering embedded controllers. IC Role / Device Role / Timing Role: Unidirectional current valve enabling efficient energy transfer while blocking reverse recovery spikes. Use Value: 0.79V forward drop cuts conduction loss by ≥0.2W vs. standard PN diode at 1A, reducing heatsink need in compact 10W designs. | Use Scenario: Reverse-voltage protection at 12V/24V battery inputs in telematics and ADAS ECUs. IC Role / Device Role / Timing Role: Fail-safe blocking element that conducts only during correct polarity connection. Use Value: 100V VRRM provides 2× margin over 24V automotive transients (ISO 7637-2 Pulse 5a), ensuring robustness without series TVS. |
| High-Frequency Inverter Freewheeling | Capacitor-Input Filter Protection |
Use Scenario: Freewheeling path in 100–500kHz resonant LLC inverters driving LED drivers or induction heaters. IC Role / Device Role / Timing Role: Fast-recovery path for inductive current decay; zero minority-carrier storage eliminates reverse recovery tail. Use Value: Near-zero reverse recovery charge (Qrr ≈ 0) prevents shoot-through risk and EMI generation in hard-switched topologies. | Use Scenario: Input rectification stage feeding bulk electrolytic capacitors in AC/DC adapters with capacitive loads. IC Role / Device Role / Timing Role: Half-wave rectifier limiting peak input current during capacitor charging. Use Value: Derated 0.8A current rating (20% reduction) ensures stable operation under high inrush without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS110 (Diodes Inc.) | Same SMB package, but rated 100V/1.0A with higher VFM (0.85V @ 1A) and no guard ring. | Lacks transient-hardened die; less suitable for automotive load-dump environments. | Prefer B1100-13 where dv/dt immunity or ISO 7637-2 compliance is required. |
| SB1100 (ON Semiconductor) | SMB package, 100V/1.0A, VFM = 0.82V @ 1A, junction capacitance 95 pF. | Higher Cj increases switching loss in >200kHz designs; thermal resistance 30 K/W limits power density. | Choose B1100-13 for tighter thermal budget or lower EMI in high-frequency inverters. |
Compared with SS110 and SB1100, B1100-13 delivers superior transient robustness via guard-ring die, lower forward voltage, and better thermal performance-making it optimal for automotive-grade and high-frequency SMPS rectification where reliability and efficiency are co-prioritized.
Availability
B1100-13 is available at Aetrix Electronics and suitable for automotive battery protection, DC/DC converter output rectification, and high-frequency inverter freewheeling requiring stable component supply across production lifecycles.
Supply support for B1100-13 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 and signal integrity solutions for industrial and automotive markets.
The B1100/B series targets high-efficiency, high-voltage Schottky rectification in space-constrained power supplies-designed for low-loss operation in 100kHz–1MHz switching applications with demanding thermal and transient requirements.
FAQ
What is the maximum junction temperature for B1100-13?
The absolute maximum junction temperature is +150°C, consistent with its specified operating range (Tj = –65°C to +150°C). Thermal design must ensure junction temperature remains within this limit under worst-case power dissipation and ambient conditions, using RJT = 25 K/W and measured terminal temperature as reference.
Is B1100-13 suitable for use in automotive applications?
Yes-B1100-13 meets key automotive requirements: 100V VRRM provides margin over ISO 7637-2 load-dump pulses, UL 94V-0 housing satisfies flammability standards, and guard-ring die construction enhances transient immunity. It is qualified for under-hood and infotainment power rails per AEC-Q101 stress test guidelines.
How does the guard-ring die construction improve reliability?
The guard-ring structure surrounds the active Schottky junction to suppress edge breakdown under high electric fields, reducing leakage current drift during voltage transients and improving long-term stability in high-dv/dt environments such as motor drives and inverters.
Can B1100-13 replace a standard PN rectifier in an existing design?
Yes, with verification: B1100-13 offers faster switching and lower VFM than PN diodes, but its higher reverse leakage at elevated temperatures must be evaluated. Layout changes may be needed to manage reduced thermal resistance and avoid parasitic oscillation due to lower Cj and zero Qrr.
B1100-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 790 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 100 V
- Capacitance @ Vr, F:
- 80pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMA
- Operating Temperature - Junction:
- -65°C ~ 150°C
B1100-13 FAQ
1.How can I place an order for B1100-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for B1100-13 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 B1100-13 reliable?
The price and inventory of B1100-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for B1100-13 is usually 5 days.
3.What payment methods are accepted for B1100-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B1100-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for B1100-13?
B1100-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your B1100-13 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 B1100-13?
For technical support, including B1100-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B1100-13 requirements.
6.How does Aetrix verify that B1100-13 is sourced from the original manufacturer or authorized distributors?
All B1100-13 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 B1100-13 meets industry standards.
7.What is the process for return or replacement of B1100-13?
All B1100-13 units undergo pre-shipment inspection (PSI). If there is an issue with B1100-13, 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 B1100-13 part is unused and in its original packaging.
Return procedure for B1100-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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