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Diodes Incorporated SB530-T
- Part No.:
- SB530-T
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
SB530-T.pdf
- Description:
- DIODE SCHOTTKY 30V 5A DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:4,133
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Product details
Overview
SB530-T from Diodes Incorporated is a 5.0A, 30V Schottky barrier rectifier in DO-201AD package, featuring low forward voltage drop (0.67V @ 5A), high surge capability (150A peak), and RoHS-compliant bright tin-plated leads. It serves as a primary output rectifier in low-voltage DC/DC converters and polarity protection diode in automotive body control modules.
For engineers reviewing the SB530-T datasheet, SB530-T pinout, SB530-T application, or SB530-T equivalent, key selection criteria include its 30V VRRM rating, thermal resistance (RθJL = 8°C/W), junction temperature range (–65°C to +150°C), and tape-and-reel packaging for automated SMT assembly.
Technical Context
This Schottky rectifier uses epitaxial construction with guard ring die design to suppress transient-induced failure. Its low forward voltage minimizes conduction loss in high-frequency switching power supplies operating up to several hundred kHz.
The device supports continuous 5.0A average forward current with derating above +25°C ambient, and withstands non-repetitive 150A surge currents per JEDEC-standard 8.3ms half-sine waveform-critical for input-stage inrush and flyback energy handling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum repetitive reverse voltage before breakdown; sets safe operating limit in 24V system bus clamping. |
| IF(AV) | 5.0 A - Continuous average forward current at TA = +25°C; defines usable DC output capacity in power supply designs. |
| VFM | 0.67 V @ 5.0A - Forward voltage drop at rated current; directly determines conduction loss (3.35W) and thermal load. |
| IFSM | 150 A - Non-repetitive peak surge current; enables robustness against capacitor charging transients and motor commutation spikes. |
| RθJL | 8 °C/W - Junction-to-lead thermal resistance; enables direct PCB copper pour heatsinking without external heatsink in moderate-power applications. |
| TJ Range | –65°C to +150°C - Operating junction temperature range; supports under-hood automotive use and industrial ambient extremes. |
Pinout & Package
Package: DO-201AD molded plastic case (UL 94V-0), cathode-banded polarity, 1.1g weight, lead finish: bright tin, solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side (e.g., switch node in buck converter or battery negative in reverse polarity protection). |
| Cathode | Current exit point during forward conduction; marked with band | Connected to higher-potential side (e.g., output rail or battery positive); reverse-biased during blocking state. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Enhances transient voltage immunity by preventing edge breakdown during fast-rising ESD or load dump events. |
| Epitaxial Schottky structure | Delivers lower forward voltage vs. silicon PN rectifiers, reducing power loss by ~40% at 5A in 12V systems. |
| 150A surge rating (JEDEC) | Withstands repeated inrush surges in 24V industrial power inputs without degradation over 10⁵ cycles. |
| RoHS-compliant bright tin plating | Enables lead-free reflow compatibility (peak 260°C) and eliminates post-solder cleaning requirements. |
Applications
| Automotive Body Control Module | Industrial DC/DC Converter |
|---|---|
Use Scenario: Reverse polarity protection on 12V/24V battery-fed microcontroller power rails. IC Role / Device Role / Timing Role: Unidirectional current gate preventing damage during incorrect battery connection. Use Value: 0.67V VFM limits voltage drop to <3% at 5A, preserving brown-out margin for 3.3V logic supplies. | Use Scenario: Output rectification in 200kHz synchronous buck converter delivering 5V@4A to FPGA core. IC Role / Device Role / Timing Role: Freewheeling path during low-side switch off-time; conducts only during dead time. Use Value: Low RθJL (8°C/W) allows direct mounting to 2oz copper plane, maintaining TJ <110°C at full load without heatsink. |
| Telecom Power Supply | LED Driver Secondary Side |
Use Scenario: OR-ing diode in redundant 48V telecom rectifier outputs. IC Role / Device Role / Timing Role: Prevents backfeed between parallel power sources while enabling hot-swap capability. Use Value: 30V VRRM exceeds 48V nominal with 20% margin for line transients; 150A IFSM handles hot-plug surge. | Use Scenario: Secondary-side rectification in isolated LED driver supplying [email protected] to high-brightness arrays. IC Role / Device Role / Timing Role: Converts transformer AC output to regulated DC; operates continuously at 1.5A average. Use Value: 5.0A IF(AV) rating provides 3.3× design margin, ensuring >10-year reliability at 70°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB530-E3/54 (Vishay) | Same DO-201AD package, identical 30V/5A ratings, but VFM = 0.70V @ 5A (0.03V higher). | Slightly higher conduction loss (3.5W vs. 3.35W); acceptable where thermal margin exists. | Select when dual-sourcing required and 0.03V VFM increase is tolerable in thermal budget. |
| SS53 (ON Semiconductor) | DO-201AD, 30V/5A, but VFM = 0.55V @ 5A and IFSM = 100A (50A lower surge rating). | Better efficiency at light loads; unsuitable for high-surge environments like motor drives. | Prefer for low-loss priority in stable-input applications; avoid in automotive load-dump scenarios. |
Compared with SB530-E3/54 and SS53, SB530-T delivers optimal balance of low VFM (0.67V), high IFSM (150A), and industry-standard DO-201AD footprint-making it preferred for automotive and industrial power where both efficiency and surge resilience are mandatory.
Availability
SB530-T is available at Aetrix Electronics and suitable for automotive body control modules, industrial DC/DC converters, and telecom redundant power supplies requiring stable component supply across multi-year production cycles.
Supply support for SB530-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 and manufacturing operations across Asia and the Americas.
The SBx30 series belongs to Diodes' high-current Schottky rectifier product line, engineered specifically for efficiency-critical 12V–48V power conversion in automotive, industrial, and communications infrastructure.
FAQ
What is the maximum allowable junction temperature for SB530-T during continuous operation?
The SB530-T has a specified maximum junction temperature of +150°C. This rating applies under steady-state conditions with appropriate PCB copper area and ambient airflow. Derating begins at +25°C ambient per the thermal resistance curve in DS23024 Rev. 9–2, and sustained operation above +135°C requires verification of thermal interface integrity and local airflow.
Can SB530-T be used as a replacement for SB520-T in a 20V-rated circuit?
No-SB530-T has a 30V VRRM rating versus SB520-T's 20V rating. While SB530-T will function electrically in a 20V circuit, its higher voltage rating does not improve performance and may incur unnecessary cost or availability trade-offs. Use SB520-T where 20V rating is sufficient and validated in the design.
Is SB530-T qualified to AEC-Q101 for automotive applications?
SB530-T is not explicitly AEC-Q101 qualified per Diodes Incorporated's public documentation. For automotive applications requiring AEC-Q101 compliance, contact Diodes Incorporated directly or request PPAP-capable variants such as the SB530Q series, which are manufactured in IATF 16949-certified facilities and undergo stress testing per AEC-Q101.
What is the recommended pad layout for SB530-T in DO-201AD package on FR-4 PCB?
Diodes recommends a minimum 10mm² copper pad per terminal (anode and cathode), connected via ≥0.5mm wide thermal traces to internal ground or power planes. The cathode pad should be larger than the anode pad to accommodate higher current flow. Avoid solder mask dams between terminals; use IPC-7351B compliant land pattern DO-201AD_1000X2500MM for optimal manufacturability and thermal performance.
SB530-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):
- 30 V
- Current - Average Rectified (Io):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 550 mV @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 30 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201AD
- Operating Temperature - Junction:
- -65°C ~ 125°C
SB530-T FAQ
1.How can I place an order for SB530-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SB530-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 SB530-T reliable?
The price and inventory of SB530-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SB530-T is usually 5 days.
3.What payment methods are accepted for SB530-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SB530-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SB530-T?
SB530-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SB530-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 SB530-T?
For technical support, including SB530-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SB530-T requirements.
6.How does Aetrix verify that SB530-T is sourced from the original manufacturer or authorized distributors?
All SB530-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 SB530-T meets industry standards.
7.What is the process for return or replacement of SB530-T?
All SB530-T units undergo pre-shipment inspection (PSI). If there is an issue with SB530-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 SB530-T part is unused and in its original packaging.
Return procedure for SB530-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SB530-T Tags
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