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Diodes Incorporated B130LAW-7-F
- Part No.:
- B130LAW-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
B130LAW-7-F.pdf
- Description:
- DIODE SCHOTTKY 30V 1A SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:74,917
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Product details
Overview
B130LAW-7-F from Diodes Incorporated is a 1.0A surface-mount Schottky barrier rectifier in SOD-123 package, featuring 30V peak repetitive reverse voltage, 0.38V forward voltage at 1.0A, and 12A non-repetitive surge current capability. It serves as a low-loss power rectification device in DC/DC converters, automotive lighting drivers, and USB power delivery circuits.
For engineers reviewing the B130LAW-7-F datasheet, B130LAW-7-F pinout, B130LAW-7-F application, or B130LAW-7-F equivalent, key selection criteria include forward voltage drop at rated current, thermal resistance junction-to-ambient (222°C/W), reverse leakage at 30V (≤1.0mA), and SOD-123 footprint compatibility with high-density PCB layouts.
Technical Context
This Schottky diode employs guard ring die construction to enhance transient robustness and suppress avalanche-induced failure under voltage spikes. Its low forward voltage (0.38V @ 1.0A) minimizes conduction loss in low-voltage, high-current paths such as 5V/3.3V rail clamping and synchronous rectifier freewheeling legs.
The device operates across –55°C to +125°C junction temperature range and exhibits 40pF total capacitance at 10V reverse bias-critical for minimizing switching noise in high-frequency SMPS feedback loops and USB port ESD protection networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum reverse blocking capability without breakdown; defines usable input voltage headroom in 24V automotive systems. |
| IF(AV) | 1.0 A - Continuous DC forward current rating; supports sustained operation in 1A-level power rails without derating below 70°C ambient. |
| VF @ 1.0A | 0.38 V - Low conduction loss ensures <0.38W dissipation per diode at full load, reducing thermal stress in compact enclosures. |
| IFS M | 12 A - Withstands 8.3ms half-sine surges; protects against inrush in LED driver startup and hot-swap events. |
| RθJA | 222 °C/W - Thermal resistance on standard FR-4 board; enables ~2.2°C rise per 10mW, guiding heatsinking decisions for multi-diode arrays. |
| IR @ 30V | 1.0 mA - Reverse leakage sets minimum off-state power loss in battery backup paths and always-on monitoring circuits. |
Pinout & Package
Package: SOD-123 - Surface-mount plastic package (1.55mm × 2.65mm × 1.05mm), moisture sensitivity level 1, lead-free matte tin plating over Alloy 42 leadframe, cathode indicated by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., ground or return path); determines polarity in reverse-biased protection configurations. |
| Cathode | Forward current exit point / polarity marker | Marked with band; ties to higher-potential node (e.g., input rail); critical for correct orientation in OR-ing and clamp circuits. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Improves ESD and transient immunity without external TVS, enabling direct placement in I/O lines of infotainment modules. |
| 0.38V VF @ 1.0A | Reduces power loss by >40% vs. standard silicon rectifiers, extending battery life in portable medical sensors. |
| SOD-123 footprint | Enables automated placement on 0.5mm pitch PCBs and supports reflow profiles compliant with J-STD-020 Level 1. |
| AEC-Q101 qualified option available | Supports automotive-grade qualification path (PPAP-capable, IATF 16949 manufacturing) for body control modules. |
Applications
| USB Power Delivery Clamp | Automotive LED Headlamp Driver |
|---|---|
Use Scenario: Clamps voltage transients on USB Type-C VBUS line during hot-plug events and ESD strikes. IC Role / Device Role / Timing Role: Bidirectional transient suppressor placed between VBUS and GND, leveraging low VF and fast recovery to limit overshoot to <33V. Use Value: Eliminates need for discrete TVS + series resistor; maintains <100ns response time while dissipating <120mJ per pulse. | Use Scenario: Freewheeling diode in buck-based LED driver powering 12V halogen replacement lamps. IC Role / Device Role / Timing Role: Provides low-loss current recirculation path during MOSFET off-time, reducing switching losses and thermal rise. Use Value: Enables 92% system efficiency at 1A output with <0.4V dropout, meeting OEM thermal limits in sealed headlamp housings. |
| Industrial Sensor Power Rail | IoT Battery Backup Circuit |
Use Scenario: Reverse polarity protection and input rectification for 3.3V/5V sensor nodes powered from 24V field buses. IC Role / Device Role / Timing Role: Series-connected anode-to-input, cathode-to-regulator input; blocks reverse current and filters ripple. Use Value: Delivers <0.15V drop at 100mA standby, preserving >95% of battery capacity in wireless vibration monitors. | Use Scenario: OR-ing diode between main Li-ion cell and supercapacitor backup in smart meter RTC circuits. IC Role / Device Role / Timing Role: Prevents backfeed from backup source into main battery during discharge cycles. Use Value: Leakage <1.0mA at 3.6V ensures <1% monthly self-discharge, supporting 10-year backup runtime compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB130-E3/54 (Vishay) | Same 30V VRRM and 1A IF(AV), but VF = 0.45V @ 1.0A; RθJA = 240°C/W; SOD-123 package. | Higher conduction loss reduces efficiency in thermally constrained IoT gateways. | Select when cost sensitivity outweighs 70mV VF penalty and thermal margin exceeds 15°C. |
| SS13HE3_A/H (Vishay) | 30V VRRM, 1A IF(AV), VF = 0.35V @ 1.0A, but IR = 2.0mA @ 30V; SOD-123 package. | Doubled leakage limits use in ultra-low-power RTC backup where <0.5mA is required. | Prefer only in non-battery-critical industrial controls where leakage tolerance >1.5mA exists. |
Compared with SB130-E3/54 and SS13HE3_A/H, B130LAW-7-F delivers the lowest VF–IR trade-off (0.38V/1.0mA) in SOD-123, making it optimal for space-constrained, thermally sensitive 1A power paths requiring both efficiency and low standby loss.
Availability
B130LAW-7-F is available at Aetrix Electronics and suitable for USB power delivery clamp circuits, automotive LED headlamp drivers, and industrial sensor power rails requiring stable component supply across extended production lifecycles.
Supply support for B130LAW-7-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, manufacturing, and sales operations across Asia, Europe, and North America.
The B130LAW-7-F belongs to Diodes' Schottky Rectifier product line, engineered for high-efficiency, low-voltage DC power conversion in automotive, industrial, and consumer applications where thermal performance and reliability under transient stress are critical.
FAQ
Is B130LAW-7-F suitable for automotive AEC-Q101 qualification?
No - the B130LAW-7-F itself is not AEC-Q101 qualified. However, Diodes offers a functionally identical variant, B130LAWQ-7-F, which is AEC-Q101 qualified, PPAP-capable, and manufactured in IATF 16949 certified facilities. Customers requiring automotive qualification must specify the Q-suffix part number.
What is the maximum ambient temperature for continuous 1.0A operation?
Per Figure 5 in the datasheet, the B130LAW-7-F supports 1.0A average forward current up to +70°C ambient temperature on a standard FR-4 board. Above this, derating is required: at +100°C ambient, maximum IF(AV) drops to 0.6A due to thermal limitations imposed by its 222°C/W RθJA.
Can B130LAW-7-F replace a 1N5819 in existing designs?
Yes - B130LAW-7-F is a direct SOD-123 drop-in replacement for through-hole 1N5819 in surface-mount layouts. It matches the 30V VRRM and 1A IF(AV), offers lower VF (0.38V vs. 0.45V), and improves thermal performance (RθJA 222°C/W vs. ~500°C/W for axial leaded 1N5819), but requires PCB pad redesign to SOD-123 footprint.
Does B130LAW-7-F require special handling for moisture sensitivity?
No - the B130LAW-7-F has Moisture Sensitivity Level 1 per J-STD-020, meaning it can be stored indefinitely at ≤30°C/85% RH and subjected to standard reflow profiles without baking. This eliminates pre-reflow dry-pack requirements and simplifies manufacturing logistics for high-volume assembly.
B130LAW-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 420 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 mA @ 30 V
- Capacitance @ Vr, F:
- 40pF @ 10V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
- Operating Temperature - Junction:
- -55°C ~ 125°C
B130LAW-7-F FAQ
1.How can I place an order for B130LAW-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for B130LAW-7-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 B130LAW-7-F reliable?
The price and inventory of B130LAW-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for B130LAW-7-F is usually 5 days.
3.What payment methods are accepted for B130LAW-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B130LAW-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for B130LAW-7-F?
B130LAW-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your B130LAW-7-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 B130LAW-7-F?
For technical support, including B130LAW-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B130LAW-7-F requirements.
6.How does Aetrix verify that B130LAW-7-F is sourced from the original manufacturer or authorized distributors?
All B130LAW-7-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 B130LAW-7-F meets industry standards.
7.What is the process for return or replacement of B130LAW-7-F?
All B130LAW-7-F units undergo pre-shipment inspection (PSI). If there is an issue with B130LAW-7-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 B130LAW-7-F part is unused and in its original packaging.
Return procedure for B130LAW-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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