My Inquiry
My Account
Diodes Incorporated B270AE-13
- Part No.:
- B270AE-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
B270AE-13.pdf
- Description:
- DIODE SCHOTTKY 70V 2A SMA
- Quantity:
- Payment:
- Shipping:
Inventory:9,691
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
B270AE-13 from Diodes Incorporated is a 70 V, 2.0 A surface-mount Schottky barrier rectifier in SMA package, featuring 0.79 V max forward voltage at 2.0 A and 7 µA max reverse leakage at 25°C, optimized for low-loss DC-DC conversion and polarity protection in power supplies.
For engineers reviewing the B270AE-13 datasheet, B270AE-13 pinout, B270AE-13 application, or B270AE-13 equivalent, key selection criteria include its 70 V reverse voltage rating, thermal resistance (110°C/W junction-to-ambient), guard ring die construction for transient immunity, RoHS-compliant matte tin plating, and compatibility with automated SMT assembly.
Technical Context
This Schottky rectifier uses a planar guard ring die structure to suppress edge breakdown and improve surge robustness under repetitive transients. Its low forward voltage (0.74 V typ. at 2.0 A, 25°C) and low junction capacitance (70 pF at 4 V, 1 MHz) support high-frequency switching operation in buck converters and flyback snubbers.
The device operates across –65°C to +150°C, with thermal derating beginning above 25°C ambient (2.0 A rated up to ~75°C, then linearly decreasing to zero at 150°C). Its SMA package enables compact layout while maintaining 50 A non-repetitive surge capability (8.3 ms half-sine).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 70 V - Maximum repetitive reverse voltage before breakdown; sets safe blocking margin in 48 V DC-DC outputs. |
| IO | 2.0 A - Continuous average forward current at TA = 25°C; usable up to ~75°C with linear derating. |
| VF Max | 0.79 V @ 2.0 A, 25°C - Directly determines conduction loss (1.58 W max per diode at full load). |
| IR Max | 7 µA @ 70 V, 25°C - Low leakage preserves efficiency in standby and light-load modes. |
| RθJA | 110 °C/W - Junction-to-ambient thermal resistance in standard JEDEC PCB layout; defines heatsinking requirement. |
| CT | 70 pF @ 4 V, 1 MHz - Low junction capacitance minimizes switching loss and EMI in >100 kHz topologies. |
| IFSM | 50 A @ 8.3 ms - Surge rating supports inrush and fault-current handling without bond-wire fusing. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, cathode-banded, lead-free matte tin terminals. Dimensions: 4.00–4.60 mm length × 2.29–2.92 mm width × 1.27–1.63 mm height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in synchronous buck); must handle 2.0 A continuous and 50 A surge. |
| Cathode | Forward current exit / reverse-blocking terminal | Marked by band; connects to output rail or ground return; sustains 70 V reverse bias with <7 µA leakage. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Suppresses edge avalanche, enabling stable 70 V blocking without premature breakdown under voltage transients. |
| Low VF (0.74 V typ. @ 2.0 A) | Reduces conduction loss by ~30% vs. comparable silicon rectifiers, improving 12 V → 5 V converter efficiency. |
| SMA package with J-STD-020 Level 1 moisture sensitivity | Enables standard reflow without baking; compatible with high-throughput pick-and-place and wave soldering. |
| RoHS- and "Green"-compliant | Meets EU RoHS 3 (2015/863/EU) and halogen/antimony limits (<900 ppm Br/Cl, <1000 ppm Sb), supporting eco-design requirements. |
Applications
| Polariy Protection | DC-DC Converter Output |
|---|---|
Use Scenario: Reverse-voltage protection on 24 V industrial input rails. IC Role / Device Role / Timing Role: Blocking diode placed between connector and system input to prevent damage from miswired power supplies. Use Value: 70 V rating provides 2× safety margin over 24 V nominal; 0.79 V VF limits voltage drop to <3.3% at 2.0 A load. | Use Scenario: Output freewheeling path in 48 V → 12 V synchronous buck converter. IC Role / Device Role / Timing Role: Schottky catch diode conducting during low-side FET off-time to maintain inductor current continuity. Use Value: 70 pF CT and 0.74 V VF minimize switching loss and output ripple at 300 kHz operation. |
| Re-Circulating Diode | Blocking Diode in Solar Charge Controller |
Use Scenario: Inductive kickback suppression across 24 V solenoid drivers. IC Role / Device Role / Timing Role: Freewheeling diode clamping back-EMF when coil is de-energized. Use Value: 50 A IFSM withstands peak inductive surges; 110°C/W RθJA allows direct PCB copper pour cooling. | Use Scenario: Preventing battery discharge through PV panel at night in 24 V off-grid solar systems. IC Role / Device Role / Timing Role: Series blocking diode between panel and charge controller input. Use Value: 7 µA IR at 25°C ensures <0.17 mW standby loss per diode; 70 V rating covers open-circuit panel voltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS27-E3/57T (Vishay) | Same 70 V VRRM, 2.0 A IO, but VF = 0.85 V max @ 2.0 A - 75 mV higher conduction loss. | Higher VF increases thermal stress in high-duty-cycle DC-DC outputs; acceptable in lower-frequency recirculation roles. | Select if legacy footprint compatibility with SMB-2 package is required; not pin-to-pin with SMA. |
| MBR270F (ON Semiconductor) | Identical SMA package and 70 V/2.0 A rating, but IR = 10 µA max @ 25°C - 43% higher leakage than B270AE-13. | Higher leakage may impact ultra-low-power standby performance in battery-backed systems. | Prefer for designs already qualified with ON's MBRx70 family; verify leakage impact in low-IQ applications. |
Compared with SS27-E3/57T and MBR270F, B270AE-13 delivers the lowest VF (0.79 V max) and lowest IR (7 µA) in the 70 V/2.0 A SMA class, making it optimal for thermally constrained, high-efficiency DC-DC and polarity protection where conduction loss and standby leakage are critical.
Availability
B270AE-13 is available at Aetrix Electronics and suitable for polarity protection, DC-DC converter output stages, re-circulating diode circuits, and solar charge controller blocking applications requiring stable component supply and consistent RoHS/Green compliance.
Supply support for B270AE-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, signal integrity, and protection solutions for industrial, computing, and consumer markets.
The B270AE-13 belongs to Diodes' high-voltage Schottky rectifier product line, engineered specifically for low-loss, high-frequency power conversion and robust transient protection in space-constrained SMT applications.
FAQ
What is the maximum operating temperature for B270AE-13?
The B270AE-13 has an operating junction temperature range of –65°C to +150°C. Its DC forward current derates linearly from 2.0 A at 25°C to zero at 150°C, with typical usable current up to ~75°C on standard FR-4 PCB without added copper. Thermal resistance is 110°C/W junction-to-ambient under JEDEC test conditions.
Is B270AE-13 suitable for automotive applications?
B270AE-13 meets AEC-Q101 stress test requirements for discrete semiconductors and operates across –65°C to +150°C, making it suitable for under-hood and infotainment power rails. However, Diodes Incorporated does not certify this specific part number for automotive use unless explicitly marked with AEC-Q101 suffix (e.g., B270AE-13Q); consult official qualification reports before deployment.
How does the guard ring construction improve reliability?
The guard ring die structure surrounds the active junction to distribute electric field stress away from sharp edges, preventing localized avalanche and premature breakdown under repetitive voltage transients. This extends lifetime in applications with frequent load dumps or inductive switching, such as solenoid drivers and motor controllers.
Can B270AE-13 replace B270BE-13 in a design?
No - B270AE-13 uses the SMA (DO-214AC) package, while B270BE-13 uses the larger SMB (DO-214AA) package. Though electrically identical, their footprints, thermal resistance (110°C/W vs. 100°C/W), and mechanical dimensions differ. PCB layout and thermal design must be revised for direct substitution; they are not drop-in replacements.
B270AE-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):
- 70 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 790 mV @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 7 µA @ 70 V
- Capacitance @ Vr, F:
- 70pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMA
- Operating Temperature - Junction:
- -65°C ~ 150°C
B270AE-13 FAQ
1.How can I place an order for B270AE-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for B270AE-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 B270AE-13 reliable?
The price and inventory of B270AE-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for B270AE-13 is usually 5 days.
3.What payment methods are accepted for B270AE-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B270AE-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for B270AE-13?
B270AE-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your B270AE-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 B270AE-13?
For technical support, including B270AE-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B270AE-13 requirements.
6.How does Aetrix verify that B270AE-13 is sourced from the original manufacturer or authorized distributors?
All B270AE-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 B270AE-13 meets industry standards.
7.What is the process for return or replacement of B270AE-13?
All B270AE-13 units undergo pre-shipment inspection (PSI). If there is an issue with B270AE-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 B270AE-13 part is unused and in its original packaging.
Return procedure for B270AE-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
B270AE-13 Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
