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Diodes Incorporated B130AF-13
- Part No.:
- B130AF-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
B130AF-13.pdf
- Description:
- DIODE SCHOTTKY 30V 1A SMAF
- Quantity:
- Payment:
- Shipping:
Inventory:2,570
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Product details
Overview
B130AF-13 from Diodes Incorporated is a 1.0A, 30V peak repetitive reverse voltage Schottky barrier rectifier in SMAF package, featuring maximum forward voltage drop of 0.50 V at 1 A and 25°C, reverse leakage current ≤0.10 mA at 30 V/25°C, and thermal resistance junction-to-ambient of 95°C/W - deployed as a boost diode in DC-DC converters for portable power supplies.
For engineers reviewing the B130AF-13 datasheet, B130AF-13 pinout, B130AF-13 application, or B130AF-13 equivalent, key selection criteria include forward voltage drop at rated current, high-temperature reverse leakage stability, thermal resistance under FR-4 mounting, and RoHS-compliant matte tin terminal finish.
Technical Context
This Schottky rectifier uses a planar epitaxial construction with low-barrier metal-semiconductor junction to achieve low VF and minimal minority-carrier storage. Its 30 V VRRM rating targets mid-voltage DC-DC stages where efficiency and thermal margin are critical.
Reverse leakage remains tightly controlled up to +125°C (≤0.10 mA at VR = 30 V), enabling stable operation in thermally constrained environments such as enclosed power adapters and automotive body control modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum allowable reverse voltage before breakdown; sets upper limit for blocking capability in boost/flyback topologies |
| IO(AV) | 1.0 A - Continuous average forward current rating at TA = +25°C; derates to ~0.6 A at +100°C per Figure 4 |
| VF(max) | 0.50 V @ IF = 1 A, TJ = +25°C - Directly determines conduction loss (0.5 W at 1 A); lower than standard PN diodes by ~0.2–0.3 V |
| IR(max) | 0.10 mA @ VR = 30 V, TA = +25°C - Low leakage preserves efficiency in standby mode and reduces thermal runaway risk at elevated temperatures |
| RθJA | 95 °C/W - Junction-to-ambient thermal resistance on standard FR-4 PCB (0.4" × 0.5", 2 oz Cu); defines temperature rise under 1 A load |
| CT | 50 pF @ VR = 4.0 V, f = 1 MHz - Junction capacitance impacts switching speed and EMI in high-frequency rectification |
Pinout & Package
Package: SMAF (Surface Mount Axial Flat) - compact 2-pin molded plastic case (4.00 mm × 2.25–2.95 mm), UL 94V-0 rated, polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to input/source side in boost configuration; requires low-inductance trace routing to minimize switching ringing |
| Cathode | Forward current exit / reverse voltage blocking node | Connected to switch node or output rail; cathode band marking enables unambiguous orientation during automated placement |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage drop | VF ≤ 0.50 V @ 1 A/25°C - reduces conduction loss by ~40% vs. comparable PN rectifiers, improving converter efficiency by 1–2% at light-to-moderate loads |
| Stable high-temp reverse leakage | IR ≤ 0.10 mA @ 30 V/25°C and ≤ 0.10 mA @ 40 V/125°C - maintains reliability in sealed enclosures without forced airflow |
| RoHS-compliant matte tin terminals | Lead-free, halogen-free, antimony-free - meets IPC-J-STD-020 moisture sensitivity Level 1 and supports lead-free reflow profiles (peak 260°C) |
| SMAF package footprint | 0.4" × 0.5" FR-4 pad layout - enables high-density PCB layouts while retaining thermal performance via copper pad exposure |
Applications
| Boost Diode in DC-DC Converters | Blocking Diode in Solar Charge Controllers |
|---|---|
Use Scenario: Used in non-synchronous step-up converters powering USB-C PD adapters and IoT sensor hubs. IC Role / Device Role: Provides unidirectional current path during MOSFET off-time; blocks reverse current from output capacitor. Use Value: 0.50 V VF minimizes power loss at 1 A, extending battery runtime; 95°C/W RθJA allows operation without heatsink at ambient ≤60°C. | Use Scenario: Placed between photovoltaic panel and MPPT charge controller to prevent nighttime battery discharge. IC Role / Device Role: Acts as reverse-polarity protection and dark-current isolation element. Use Value: ≤0.10 mA IR at 30 V ensures <10 µW standby loss per diode, preserving >99.5% of stored energy over 12-hour night cycle. |
| Recirculating Diode in Relay Drivers | Output Rectifier in Low-Noise LDO Pre-Regulators |
Use Scenario: Mounted across relay coils in industrial PLC I/O modules to suppress inductive kickback. IC Role / Device Role: Clamps flyback voltage spike during coil de-energization; routes recirculating current back to supply rail. Use Value: Fast recovery (inherent to Schottky) limits voltage overshoot to <35 V, protecting 33 V-rated driver ICs without TVS supplementation. | Use Scenario: Positioned post-switching regulator to feed low-noise linear regulators in RF front-end power domains. IC Role / Device Role: Filters switching noise and provides clean DC input to LDO; blocks reverse current during LDO shutdown. Use Value: 50 pF CT minimizes high-frequency coupling into LDO input, reducing conducted EMI by >10 dB above 10 MHz vs. higher-capacitance alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB130-TB-E3/52 (Vishay) | Same 30 V VRRM, 1 A IO, but VF = 0.52 V max @ 1 A/25°C; RθJA = 100°C/W | Slightly higher conduction loss and thermal resistance; suitable where board space allows larger thermal pad | Select if existing design uses Vishay footprint or requires dual-sourcing with identical electrical envelope |
| SS13 (ON Semiconductor) | 30 V VRRM, 1 A IO, VF = 0.55 V max @ 1 A/25°C; IR = 0.5 mA @ 30 V/25°C - 5× higher leakage | Higher leakage may compromise efficiency in high-temperature solar or automotive applications | Prefer only in cost-sensitive consumer applications where ambient stays below 60°C and standby loss is non-critical |
Compared with SB130-TB-E3/52 and SS13, B130AF-13 delivers superior thermal performance (95 vs. 100°C/W) and tighter leakage control (0.10 vs. 0.5 mA), making it optimal for thermally constrained or high-reliability designs requiring long-term stability at elevated junction temperatures.
Availability
B130AF-13 is available at Aetrix Electronics and suitable for DC-DC boost converters, solar charge controllers, relay driver circuits, and low-noise LDO pre-regulator stages requiring stable component supply and consistent Schottky performance across production batches.
Supply support for B130AF-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, manufacturing, and sales operations across Asia, Europe, and North America.
The B130AF-13 belongs to Diodes' high-efficiency Schottky rectifier product line, engineered specifically for space-constrained, thermally demanding power conversion applications where low VF and stable high-temperature leakage are critical.
FAQ
What is the maximum junction temperature for continuous operation of B130AF-13?
The B130AF-13 has an operating junction temperature range of –55°C to +150°C. For reliable long-term operation at 1 A average current, junction temperature must be maintained ≤150°C - achievable up to ~60°C ambient on standard FR-4 with recommended pad layout, per Figure 4 derating curve.
Is B130AF-13 compatible with lead-free reflow soldering processes?
Yes. B130AF-13 features matte tin annealed terminals and complies with IPC-J-STD-020 moisture sensitivity Level 1. It supports peak reflow temperatures up to 260°C and is qualified for standard lead-free solder profiles without preconditioning.
Does B130AF-13 have a specified reverse recovery time (trr)?
No - as a Schottky barrier rectifier, B130AF-13 exhibits no minority-carrier storage and therefore has no defined reverse recovery time. Its switching behavior is governed by junction capacitance (50 pF) and series resistance, enabling near-zero recovery loss in high-frequency applications.
Can B130AF-13 replace B120AF-13 or B140AF-13 in the same footprint?
Yes - all three share identical SMAF package, pinout, and mechanical dimensions. Substitution is electrically permissible if the circuit's reverse voltage stress remains within the lower-rated device's VRRM (e.g., B130AF-13 may replace B120AF-13 in 20 V systems), but not vice versa without overvoltage risk.
B130AF-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-221AC, SMA Flat Leads
- 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:
- 500 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 30 V
- Capacitance @ Vr, F:
- 50pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMAF
- Operating Temperature - Junction:
- -55°C ~ 150°C
B130AF-13 FAQ
1.How can I place an order for B130AF-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for B130AF-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 B130AF-13 reliable?
The price and inventory of B130AF-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for B130AF-13 is usually 5 days.
3.What payment methods are accepted for B130AF-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B130AF-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for B130AF-13?
B130AF-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your B130AF-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 B130AF-13?
For technical support, including B130AF-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B130AF-13 requirements.
6.How does Aetrix verify that B130AF-13 is sourced from the original manufacturer or authorized distributors?
All B130AF-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 B130AF-13 meets industry standards.
7.What is the process for return or replacement of B130AF-13?
All B130AF-13 units undergo pre-shipment inspection (PSI). If there is an issue with B130AF-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 B130AF-13 part is unused and in its original packaging.
Return procedure for B130AF-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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