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Diodes Incorporated B130LB-13
- Part No.:
- B130LB-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
B130LB-13.pdf
- Description:
- DIODE SCHOTTKY 30V 2A SMB
- Quantity:
- Payment:
- Shipping:
Inventory:4,768
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Product details
Overview
B130LB-13 from Diodes Incorporated is a 1.0 A, 30 V surface-mount Schottky barrier rectifier in SMB package, featuring low forward voltage (0.395 V @ 1.0 A), 40 A non-repetitive surge capability, and 90 pF typical junction capacitance - deployed in DC/DC converter output stages, reverse polarity protection, and freewheeling paths in high-frequency switching supplies.
For engineers reviewing the B130LB-13 datasheet, B130LB-13 pinout, B130LB-13 application, or B130LB-13 equivalent, key selection criteria include forward voltage drop at rated current, thermal resistance (12 °C/W), peak repetitive reverse voltage (30 V), surge robustness (40 A, 8.3 ms), and SMB package compatibility with automated SMT assembly.
Technical Context
This Schottky rectifier uses a guard-ringed die construction to enhance transient immunity and reduce leakage under reverse bias. Its low VF enables high-efficiency operation in low-voltage (<5 V) power rails where conduction loss dominates thermal design.
The device operates across –55 °C to +125 °C with derated average current (2.0 A at 110 °C case temperature, 1.0 A at 120 °C), and exhibits stable capacitance (90 pF @ 4 V, 1 MHz) critical for EMI-sensitive high-frequency rectification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM / VRWM / VR | 30 V - Maximum blocking voltage before avalanche; sets upper limit for input/output rail separation in buck converters and reverse-battery protection circuits. |
| IO @ TT = 120°C | 1.0 A - Continuous DC output current capability at 120 °C case temperature; defines minimum heatsinking requirement in enclosed power modules. |
| VFM @ IF = 1.0 A | 0.395 V - Forward voltage drop determining conduction loss (0.395 W per diode at 1 A); directly impacts efficiency in 3.3 V or 5 V point-of-load regulators. |
| IFSM (8.3 ms) | 40 A - Surge rating for startup inrush or short-circuit recovery; supports robustness without external fusing in 12 V automotive auxiliary supplies. |
| RJT | 12 °C/W - Junction-to-terminal thermal resistance; enables direct PCB copper pour sizing for thermal management without discrete heatsinks. |
| CT @ 1 MHz, 4 V | 90 pF - Junction capacitance affecting high-frequency switching noise and snubber design in >100 kHz flyback or synchronous rectifier topologies. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount plastic molded case compliant with UL 94V-0; dimensions: 3.30–3.94 mm (A), 4.06–4.57 mm (B), 1.96–2.21 mm (C); cathode identified by band or notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry node under forward bias | Connected to lower-potential side (e.g., switch node in buck sync rectifier or battery negative in polarity protection). |
| Cathode | Current exit node under forward bias; marked with band/notch | Connected to higher-potential rail (e.g., output capacitor positive or system ground return path); determines orientation during pick-and-place. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Improves transient voltage immunity and reduces IR drift under repetitive surge stress, extending reliability in automotive load-dump environments. |
| Low VF (0.395 V @ 1 A) | Reduces conduction loss by ~40% vs. comparable 1 A silicon rectifiers, enabling smaller thermal pads and higher power density in space-constrained adapters. |
| SMB package with J-STD-020A Level 1 moisture sensitivity | Supports standard reflow profiles without baking; compatible with high-speed placement equipment and IPC-A-610 Class 2/3 assembly requirements. |
| 40 A IFSM rating | Withstands inrush currents from large bulk capacitors or motor startup transients without parametric shift or bond-wire failure. |
Applications
| DC/DC Converter Output Rectification | Reverse Polarity Protection |
|---|---|
Use Scenario: Used as secondary-side rectifier in 5 V/3 A isolated flyback or non-isolated buck converter powering FPGA I/O banks. IC Role / Device Role / Timing Role: Schottky rectifier conducting during low-side switch on-time; replaces synchronous MOSFET where gate drive complexity is undesirable. Use Value: 0.395 V VF minimizes dropout and improves regulation margin at full load; 90 pF CT avoids resonance with output filter inductance above 10 MHz. | Use Scenario: Placed in series with VBUS line of USB-C powered peripherals to prevent damage from reversed adapter insertion. IC Role / Device Role / Timing Role: Unidirectional current valve blocking reverse current flow; positioned upstream of LDO or PMIC input. Use Value: 30 V VRRM exceeds worst-case reverse transients (±24 V); 1.0 A IO sustains hot-swap inrush without thermal runaway. |
| Freewheeling Diode in PWM Motor Drivers | High-Frequency Inverter Clamping |
Use Scenario: Freewheeling path for brushed DC motor coil current during H-bridge low-side switch off-time in 24 V industrial actuators. IC Role / Device Role / Timing Role: Provides low-loss recirculation path during PWM dead time; clamps inductive kickback to supply rail. Use Value: 40 A IFSM handles peak coil current spikes; 12 °C/W RJT allows direct mounting to copper pour for sustained 1 A RMS operation. | Use Scenario: Clamp diode across transformer primary in resonant LLC half-bridge inverters operating at 200–500 kHz for LED drivers. IC Role / Device Role / Timing Role: Suppresses voltage overshoot during zero-voltage switching transitions; absorbs leakage inductance energy. Use Value: 90 pF CT ensures minimal displacement current distortion at 500 kHz; low VF prevents excessive clamp power dissipation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS13 (Diodes Inc.) | Same SMB package, but 30 V VRRM and 1.0 A IO; VF = 0.5 V @ 1 A - 27% higher conduction loss. | Higher VF increases thermal load in compact enclosures; less suitable for thermally constrained 5 V/2 A outputs. | Select when cost priority outweighs efficiency, or where legacy SS13 footprint reuse is required. |
| SB130 (ON Semiconductor) | Identical 30 V/1.0 A rating and SMB package; VF = 0.45 V @ 1 A; IRM = 5 mA @ 25 °C (vs. 1.0 mA for B130LB-13). | Higher leakage may affect standby power in always-on IoT nodes; otherwise functionally interchangeable. | Prefer for designs already qualified with SB130; verify IRM impact on quiescent current budget. |
Compared with SS13 and SB130, B130LB-13 delivers the lowest forward voltage (0.395 V) and tightest leakage (1.0 mA), making it optimal for high-efficiency, thermally constrained, or ultra-low-quiescent-power applications - especially where SMB footprint and 30 V blocking are fixed constraints.
Availability
B130LB-13 is available at Aetrix Electronics and suitable for DC/DC converter output rectification, reverse polarity protection, and freewheeling diode applications requiring stable component supply, consistent SMB packaging, and verified Schottky performance across temperature.
Supply support for B130LB-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, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the US.
The B130LB-13 belongs to Diodes' SMB-packaged Schottky rectifier product line, engineered for high-frequency, low-loss power conversion in consumer, industrial, and automotive power supplies.
FAQ
What is the maximum junction temperature for continuous operation?
The B130LB-13 has an operating junction temperature range of –55 °C to +125 °C. For continuous 1.0 A DC operation, the case temperature must not exceed 120 °C per the derating curve; thermal design must ensure junction temperature remains ≤125 °C under worst-case ambient and power dissipation conditions.
Is B130LB-13 RoHS-compliant and halogen-free?
Yes - B130LB-13 meets RoHS Directive 2011/65/EU and is halogen-free per IEC 61249-2-21. The standard terminal plating is matte tin (lead-free), and the molding compound complies with UL 94V-0 flammability rating.
Can B130LB-13 replace a 1N5819 in existing designs?
Yes, with qualification - both are 1 A, 30 V Schottky rectifiers in through-hole (1N5819) and surface-mount (B130LB-13) packages. Electrical specs align closely, but layout must accommodate SMB footprint (4.06–4.57 mm × 3.30–3.94 mm) and reflow profile instead of wave soldering.
Does B130LB-13 have SPICE model support?
Yes - Diodes Incorporated provides a validated SPICE model for B130LB-13 (designated DS30043 Rev. 5), including forward conduction, reverse leakage, and junction capacitance behavior across temperature, available for download from their official website.
B130LB-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):
- 30 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 445 mV @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 mA @ 30 V
- Capacitance @ Vr, F:
- 90pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
- Operating Temperature - Junction:
- -55°C ~ 125°C
B130LB-13 FAQ
1.How can I place an order for B130LB-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for B130LB-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 B130LB-13 reliable?
The price and inventory of B130LB-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for B130LB-13 is usually 5 days.
3.What payment methods are accepted for B130LB-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B130LB-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for B130LB-13?
B130LB-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your B130LB-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 B130LB-13?
For technical support, including B130LB-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B130LB-13 requirements.
6.How does Aetrix verify that B130LB-13 is sourced from the original manufacturer or authorized distributors?
All B130LB-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 B130LB-13 meets industry standards.
7.What is the process for return or replacement of B130LB-13?
All B130LB-13 units undergo pre-shipment inspection (PSI). If there is an issue with B130LB-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 B130LB-13 part is unused and in its original packaging.
Return procedure for B130LB-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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