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Diodes Incorporated B260AX-13
- Part No.:
- B260AX-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
B260AX-13.pdf
- Description:
- SCHOTTKY RECTIFIER SMA T&R 5K
- Quantity:
- Payment:
- Shipping:
Inventory:7,011
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Product details
Overview
B260AX-13 from Diodes Incorporated is a 2A, 60V Trench Schottky barrier rectifier in SMA package, featuring max 0.52V forward voltage at 2A/25°C, 0.2mA reverse leakage at 60V/25°C, and 150°C junction temperature rating-used in DC-DC converter freewheeling paths and reverse polarity protection circuits.
For engineers reviewing the B260AX-13 datasheet, B260AX-13 pinout, B260AX-13 application, or B260AX-13 equivalent, key selection criteria include low VF for efficiency-critical 12V/24V power rails, soft switching behavior for EMI-sensitive SMPS designs, and RoHS-compliant lead-free plating for industrial PCB assembly compliance.
Technical Context
This Schottky diode employs trench MOS structure to reduce forward voltage drop while maintaining low reverse leakage-enabling high-frequency operation up to several MHz without significant switching loss penalties. Its thermal resistance (RθJA = 80°C/W on FR-4) supports 2A continuous conduction with minimal heatsinking in compact layouts.
The device exhibits soft reverse recovery (no stored charge), eliminating snubber requirements in flyback and buck converter freewheeling paths. Junction capacitance drops from ~100pF at 0V to ~20pF at 40V reverse bias, supporting stable high-speed switching waveforms.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 60V - blocks up to 60V reverse voltage without breakdown in blocking mode |
| IO | 2A - delivers 2A average forward current continuously at TA = +25°C |
| VF (Max) | 0.52V @ 2A, 25°C - enables >92% efficiency in 5V–12V DC-DC output stages |
| IR (Max) | 0.2mA @ 60V, 25°C - ensures minimal standby power loss in battery-backed systems |
| TJ Operating Range | −55°C to +150°C - supports under-hood automotive and industrial ambient environments |
| RθJA | 80°C/W - defines thermal derating slope on standard FR-4 PCB (0.4" × 0.5") |
| IFSM | 30A @ 1ms half-sine - withstands typical inrush surges in power supply startup |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, single-ended anode/cathode configuration with cathode band marking. Molded green compound, UL 94V-0 rated, 0.064g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to input/high-side node in rectification or freewheeling path |
| Cathode (Lead 2) | Forward current exit / reverse blocking terminal | Marked with cathode band; ties to ground or return path; blocks reverse current above VRRM |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | VF ≤ 0.52V @ 2A/25°C reduces conduction loss by ~35% vs. standard PN diodes |
| Soft switching behavior | No minority-carrier storage enables zero-recovery-time operation, eliminating switching spikes |
| +150°C junction rating | Enables full 2A current derating only above 100°C ambient-no external heatsink needed below that |
| RoHS & Halogen-Free | Meets EU RoHS 3 (2015/863/EU); <900ppm Br/Cl, <1000ppm Sb-compliant for green manufacturing |
Applications
| DC-DC Converter Freewheeling | Reverse Polarity Protection |
|---|---|
Use Scenario: Freewheeling path in synchronous or non-synchronous buck converters delivering 3.3V/5V/12V at up to 2A. IC Role / Device Role: Low-loss unidirectional current path during low-side switch off-time. Use Value: 0.52V VF minimizes power loss (≤1.04W) and thermal rise in space-constrained modules. | Use Scenario: Input protection for USB-C PD adapters, PoE injectors, and field-deployable sensors. IC Role / Device Role: Series-blocking diode preventing damage from accidental reverse battery or supply connection. Use Value: 0.2mA IR at 25°C limits standby drain to <12μW-critical for battery life in always-on devices. |
| AC-DC Secondary Rectification | Blocking Diode in Solar Charge Controllers |
Use Scenario: Output rectification in offline flyback or forward converters operating at 65–130kHz. IC Role / Device Role: High-frequency rectifier replacing slower PN diodes to reduce switching loss and EMI. Use Value: Soft recovery eliminates need for RC snubbers-reducing BOM count and layout area. | Use Scenario: Blocking diode between solar panel array and MPPT charge controller to prevent nighttime battery discharge. IC Role / Device Role: Unidirectional isolation element with low forward drop to preserve panel voltage headroom. Use Value: 0.45V typical VF at 2A preserves ≥0.8V per panel string-maximizing energy harvest in low-light conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS26-E3/57T (Vishay) | Same 60V/2A rating; VF = 0.75V (max) @ 2A - 44% higher conduction loss | Higher VF increases thermal load in sealed enclosures; less suitable for 12V/2A high-efficiency designs | Prefer when cost sensitivity outweighs efficiency targets and thermal margin exists |
| MBR260RLG (ON Semiconductor) | Same SMA package; VF = 0.55V (max) @ 2A; IR = 0.5mA @ 60V/25°C - 2.5× higher leakage | Higher IR may compromise battery backup runtime in low-power IoT nodes | Acceptable where ambient temperature stays <60°C and standby current is not critical |
Compared with SS26-E3/57T and MBR260RLG, B260AX-13 delivers the lowest VF and IR combination in SMA format-making it optimal for thermally constrained, high-efficiency 12V–24V power conversion where both conduction loss and standby leakage must be minimized.
Availability
B260AX-13 is available at Aetrix Electronics and suitable for DC-DC converters, reverse polarity protection circuits, and AC-DC secondary rectification requiring stable component supply across industrial, telecom, and consumer electronics programs.
Supply support for B260AX-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.
B260AX-13 belongs to Diodes' Trench Schottky Rectifier product line, engineered specifically for high-efficiency, high-frequency power conversion in space- and thermal-constrained applications.
FAQ
What is the maximum junction temperature and how does it affect thermal design?
The B260AX-13 has a rated TJ range of −55°C to +150°C. At 2A continuous current, its RθJA of 80°C/W means a 160°C rise above ambient-so operation at full current requires ambient ≤ −10°C unless heatsinking or airflow is added. Derating curves (Figure 4) show usable current drops to ~1.2A at 100°C case temperature.
Is B260AX-13 suitable for automotive applications?
B260AX-13 is not AEC-Q101 qualified. While it operates up to +150°C junction temperature and meets RoHS/Green standards, Diodes explicitly states that automotive-grade versions require separate qualification (PPAP, IATF 16949 manufacturing). For automotive use, contact Diodes for AEC-Q101-compliant alternatives like B260A-13Q.
How does the cathode band orientation relate to PCB layout?
The cathode band marks Lead 2 (cathode terminal) on the SMA package top view. PCB footprints must align the silkscreen cathode marker with this band; incorrect orientation causes reverse conduction failure. The recommended pad layout (per Diodes' outline DWG-00001) uses 2.5mm × 6.5mm copper pads with 1.7mm spacing to ensure solder joint reliability and thermal performance.
Can B260AX-13 replace a standard PN rectifier like 1N4007?
No-B260AX-13 is not a drop-in replacement for 1N4007. It has lower VRRM (60V vs. 1000V), higher IF (2A vs. 1A), and Schottky physics (no reverse recovery time but higher IR at high temperature). Use only where system voltage ≤60V and soft switching benefits outweigh leakage concerns-e.g., DC-DC outputs-not AC mains rectification.
B260AX-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 60 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 520 mV @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 200 µA @ 60 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMA
- Operating Temperature - Junction:
- -55°C ~ 150°C
B260AX-13 FAQ
1.How can I place an order for B260AX-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for B260AX-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 B260AX-13 reliable?
The price and inventory of B260AX-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for B260AX-13 is usually 5 days.
3.What payment methods are accepted for B260AX-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B260AX-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for B260AX-13?
B260AX-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your B260AX-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 B260AX-13?
For technical support, including B260AX-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B260AX-13 requirements.
6.How does Aetrix verify that B260AX-13 is sourced from the original manufacturer or authorized distributors?
All B260AX-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 B260AX-13 meets industry standards.
7.What is the process for return or replacement of B260AX-13?
All B260AX-13 units undergo pre-shipment inspection (PSI). If there is an issue with B260AX-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 B260AX-13 part is unused and in its original packaging.
Return procedure for B260AX-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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