My Inquiry
My Account
Diodes Incorporated SB570-T
- Part No.:
- SB570-T
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
SB570-T.pdf
- Description:
- DIODE SCHOTTKY 70V 5A DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:4,904
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SB570-T from Diodes Incorporated is a 5.0A, 70V Schottky barrier rectifier in DO-201AD package, featuring 0.80V forward voltage at 5.0A, 150A non-repetitive surge capability, and guard ring die construction for transient protection-used in low-voltage DC/DC converters and polarity protection circuits.
For engineers reviewing the SB570-T datasheet, SB570-T pinout, SB570-T application, or SB570-T equivalent, key selection criteria include forward voltage drop, peak repetitive reverse voltage, thermal resistance (10°C/W), surge rating, and RoHS-compliant tin-plated leads for high-reliability soldering.
Technical Context
This Schottky rectifier operates with metal-semiconductor junction architecture to minimize forward conduction loss and eliminate minority-carrier storage delay. Its 70V VRRM and 5.0A average output current support continuous operation up to +80°C case temperature under specified thermal conditions.
The device exhibits 400pF typical junction capacitance at 1MHz/4V, enabling effective use in high-frequency switching applications such as flyback snubbers and synchronous rectifier auxiliary paths-where low Qrr and fast recovery are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 70 V - maximum repetitive reverse blocking voltage before breakdown |
| IO | 5.0 A - average rectified output current at TL = +80°C, defining continuous power handling |
| VFM | 0.80 V @ 5.0A - forward voltage drop directly impacts conduction loss and thermal rise |
| IFSM | 150 A - peak non-repetitive surge current (8.3ms half-sine) for transient overload resilience |
| RθJA | 10 °C/W - junction-to-ambient thermal resistance determines heatsinking requirements |
| CJ | 400 pF @ 1MHz/4V - junction capacitance affects high-frequency switching noise and EMI behavior |
| TJ Range | –65°C to +150°C - operating junction temperature range supports automotive under-hood environments |
Pinout & Package
DO-201AD molded plastic package with axial leads; cathode identified by band marking; weight ≈1.1 g; UL 94V-0 flammability rating; moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side of load or source in rectification path |
| Cathode | Current exit point during forward conduction | Marked with band; connected to higher-potential node; defines polarity protection orientation |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Enhances transient voltage immunity without external TVS, reducing BOM count in surge-prone inputs |
| Low VF (0.80V @ 5A) | Reduces conduction loss by ~30% vs. comparable silicon diodes, improving efficiency in 5–12V SMPS |
| 150A IFSM rating | Withstands inrush currents in battery-powered systems with large input capacitors or motor startup loads |
| RoHS-compliant bright tin plating | Ensures reliable solder wetting and intermetallic formation per MIL-STD-202 Method 208 |
| DO-201AD mechanical robustness | Supports automated through-hole insertion and wave soldering with minimal lead fatigue risk |
Applications
| DC/DC Converter Output Rectification | Polarity Protection Circuit |
|---|---|
Use Scenario: Secondary-side rectification in isolated 5V/3.3V buck-derived converters powering FPGAs or microcontrollers. IC Role / Device Role / Timing Role: Unidirectional current valve converting transformer secondary AC to regulated DC output. Use Value: 0.80V VF minimizes power loss and thermal stress at 5A load, enabling compact heatsink-free designs. | Use Scenario: Reverse-voltage protection on 12V automotive accessory inputs subject to battery disconnection transients. IC Role / Device Role / Timing Role: Series-blocking element preventing damage when supply polarity is accidentally reversed. Use Value: Guard ring structure withstands >100V transients without degradation, eliminating need for parallel TVS. |
| Free-Wheeling Diode | Low-Voltage Inverter Snubber |
Use Scenario: Inductive load flyback path in 24V industrial solenoid drivers with PWM control. IC Role / Device Role / Timing Role: Provides low-loss recirculation path for coil current during MOSFET off-time. Use Value: Fast recovery (no minority carrier storage) prevents voltage overshoot and reduces MOSFET switching loss. | Use Scenario: Clamp diode in half-bridge inverter gate-drive bootstrap circuit operating at 100kHz. IC Role / Device Role / Timing Role: Suppresses ringing and limits voltage spikes across high-side driver bootstrap capacitor. Use Value: 400pF CJ balances clamping speed and capacitive loading-prevents false triggering without excessive current draw. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS57-E3/57 (Vishay) | Same DO-201AD package; VF = 0.75V @ 5A; VRRM = 70V; IFSM = 120A | Lower forward drop but reduced surge margin; less suitable for high-inrush battery systems | Select when lowest conduction loss is prioritized over transient robustness |
| MBR570FCT (ON Semiconductor) | TO-220AC package; VF = 0.72V @ 5A; VRRM = 70V; IFSM = 150A; RθJA = 50°C/W (unmounted) | Requires heatsink for same current; incompatible footprint; better thermal dissipation in high-power chassis-mount designs | Select when board space allows TO-220 and thermal management includes heatsinking |
Compared with SS57-E3/57 and MBR570FCT, SB570-T delivers optimal balance of surge resilience (150A), low-profile DO-201AD packaging, and proven reliability in automotive-grade assembly lines-making it preferred for space-constrained, high-transient industrial power supplies.
Availability
SB570-T is available at Aetrix Electronics and suitable for DC/DC converter output rectification, polarity protection circuits, free-wheeling diode applications, and low-voltage inverter snubbers requiring stable component supply and full traceability.
Supply support for SB570-T 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 SB570-T belongs to Diodes' high-current Schottky rectifier product line, engineered for efficiency-critical power conversion in automotive, industrial, and computing applications where low VF, high surge tolerance, and AEC-Q200-aligned process control are required.
FAQ
What is the maximum allowable case temperature for continuous operation of SB570-T?
The SB570-T is rated for continuous average rectified output current of 5.0A at a lead temperature (TL) of +80°C. Exceeding this temperature requires derating per the datasheet's thermal curves; sustained operation above +80°C leads to accelerated parameter drift and reduced reliability.
Is SB570-T qualified to AEC-Q101 for automotive use?
No-SB570-T is not AEC-Q101 qualified. Diodes Incorporated offers AEC-Q101 versions under separate part numbers (e.g., SB570Q-T). This standard part meets industrial reliability requirements and RoHS compliance but lacks PPAP documentation and IATF 16949-controlled lot traceability required for automotive qualification.
Can SB570-T replace SB580-T in an existing design?
SB570-T may be substituted for SB580-T only if the circuit's peak reverse voltage does not exceed 70V. Since SB580-T has 80V VRRM, using SB570-T introduces 10V margin reduction and risks reverse breakdown under transient overvoltage conditions-especially in unregulated 12V or 24V systems.
What is the recommended PCB pad layout for DO-201AD package of SB570-T?
Diodes recommends minimum 2.5mm² copper area per lead (≥2.0mm × 1.25mm) with thermal relief spokes to limit solder joint stress during reflow. Pad spacing must match DO-201AD lead pitch (5.05 ± 0.25mm); avoid oversized pads that cause tombstoning or insufficient fillet formation on axial leads.
SB570-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-201AD, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 70 V
- Current - Average Rectified (Io):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 800 mV @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 70 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201AD
- Operating Temperature - Junction:
- -65°C ~ 150°C
SB570-T FAQ
1.How can I place an order for SB570-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SB570-T 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 SB570-T reliable?
The price and inventory of SB570-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SB570-T is usually 5 days.
3.What payment methods are accepted for SB570-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SB570-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SB570-T?
SB570-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SB570-T 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 SB570-T?
For technical support, including SB570-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SB570-T requirements.
6.How does Aetrix verify that SB570-T is sourced from the original manufacturer or authorized distributors?
All SB570-T 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 SB570-T meets industry standards.
7.What is the process for return or replacement of SB570-T?
All SB570-T units undergo pre-shipment inspection (PSI). If there is an issue with SB570-T, 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 SB570-T part is unused and in its original packaging.
Return procedure for SB570-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SB570-T 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…
