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Diodes Incorporated SBL3030PT
- Part No.:
- SBL3030PT
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-3P-3, SC-65-3
- Datasheet:
-
SBL3030PT.pdf
- Description:
- DIODE ARRAY SCHOTT 30V 15A TO-3P
- Quantity:
- Payment:
- Shipping:
Inventory:2,167
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Product details
Overview
SBL3030PT from Diodes Incorporated is a 30A, 30V Schottky barrier rectifier in TO-3P package, featuring 0.55V forward voltage drop at 15A/25°C, 275A non-repetitive surge capability, and 2.0°C/W junction-to-case thermal resistance-designed for low-voltage, high-frequency inverters and polarity protection circuits.
For engineers reviewing the SBL3030PT datasheet, SBL3030PT pinout, SBL3030PT application, or SBL3030PT equivalent, key selection criteria include forward voltage drop under load, thermal resistance with heatsink mounting, surge current rating for transient robustness, and TO-3P mechanical compatibility in high-current DC power paths.
Technical Context
This dual-anode common-cathode Schottky rectifier uses guard ring die construction to enhance transient voltage immunity and reduce leakage during reverse-biased operation. Its low VF and high IO support efficient power conversion in 12V–24V systems where conduction loss minimization is critical.
The device operates across –65°C to +150°C with rated average output current of 30A at TC = 95°C, requiring external heatsinking per RθJC = 2.0°C/W. Capacitance is 1100pF at 1MHz/4V, limiting high-frequency switching use above ~100kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum repetitive reverse voltage before breakdown; sets upper limit for DC blocking in 24V bus protection |
| IO | 30 A @ TC = 95°C - Continuous forward current capability when case temperature is maintained at 95°C with heatsink |
| VFM | 0.55 V @ IF = 15A, TC = 25°C - Low conduction loss enabling >92% efficiency in 12V buck-derived supplies |
| IFSM | 275 A (8.3ms half-sine) - Withstands motor startup surges or capacitor inrush without failure |
| RθJC | 2.0 °C/W - Requires ≥10 cm² aluminum heatsink for sustained 30A operation at ambient ≤55°C |
| CT | 1100 pF @ 1MHz, 4V - Limits usable frequency range in snubberless flyback or resonant topologies |
Pinout & Package
Package: TO-3P (isolated metal tab), molded plastic case with UL 94V-0 flammability rating, tin-plated terminals, 5.6g typical weight. Mounting requires insulated hardware due to electrically active tab (cathode).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 | Input terminal for first rectifying path | Connected to AC input or switching node; must withstand full reverse voltage and surge current |
| Anode 2 | Input terminal for second rectifying path | Enables dual-input or interleaved configuration; shares cathode for compact layout |
| Cathode (Tab) | Common output terminal and thermal path | Electrically active metal tab serves as both output connection and primary heat dissipation surface |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Improves transient immunity and reduces IR drift under voltage stress, extending reliability in noisy industrial environments |
| Low forward voltage drop | 0.55V at 15A enables <1.5W conduction loss per diode at nominal load, reducing heatsink size by ~35% vs. standard silicon |
| High surge current rating | 275A peak supports 12V automotive cold-crank and industrial motor drive inrush without derating |
| TO-3P thermally optimized package | 2.0°C/W RθJC allows direct bolt-down to chassis or heatsink, eliminating need for thermal interface pads in many 30A designs |
Applications
| DC Power Polarity Protection | 12V Automotive Inverter Output Stage |
|---|---|
Use Scenario: Reverse battery connection protection in vehicle infotainment head units and ADAS ECUs. IC Role / Device Role / Timing Role: Series-connected Schottky rectifier blocking reverse current while passing forward current with minimal voltage drop. Use Value: 0.55V VF limits insertion loss to <4.6% at 12V/15A, preserving system efficiency without compromising fault tolerance. | Use Scenario: Output freewheeling path in 12V-to-48V bi-directional DC-DC converters for mild-hybrid vehicles. IC Role / Device Role / Timing Role: Dual-anode configuration supports interleaved phase operation, reducing output ripple and thermal cycling stress. Use Value: 275A IFSM handles regenerative braking surges; TO-3P tab enables direct heatsink mounting for sustained 30A bidirectional conduction. |
| Industrial UPS Battery Charging Circuit | Server PSU OR-ing Diode Array |
Use Scenario: Isolating parallel battery strings during float charging in telecom backup systems. IC Role / Device Role / Timing Role: Common-cathode dual-anode topology allows independent anode control for string selection and fault isolation. Use Value: 30A continuous rating supports 2kW+ charging; guard ring construction prevents leakage-induced thermal runaway across strings. | Use Scenario: Redundant 12V power rail OR-ing in enterprise server backplanes with hot-swap capability. IC Role / Device Role / Timing Role: Cathode-tied configuration delivers low-loss current combining with fast reverse recovery (inherent to Schottky). Use Value: 1100pF capacitance avoids EMI issues at 100kHz OR-ing switching; TO-3P mechanical stability ensures long-term solder joint integrity under thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-30CPQ030 | 30V/30A, 0.52V VF @ 15A, TO-247AC package, RθJC = 1.7°C/W | Lower VF but no integrated guard ring; higher surge rating (320A) | Preferred where ultimate efficiency is prioritized and board space allows TO-247 footprint |
| ON Semiconductor MBR3030CT | 30V/30A, 0.62V VF @ 15A, TO-220AB package, RθJC = 2.5°C/W | Higher VF and thermal resistance; lower cost, wider distributor availability | Selected for cost-sensitive industrial controls where 0.07V higher drop is acceptable |
Compared with VS-30CPQ030 and MBR3030CT, the SBL3030PT offers balanced performance: superior transient ruggedness via guard ring versus Vishay, and better thermal efficiency than ON Semi's TO-220 option-making it optimal for space-constrained, thermally demanding 12V/24V systems requiring field-proven reliability.
Availability
SBL3030PT is available at Aetrix Electronics and suitable for DC power polarity protection, 12V automotive inverter output stages, and industrial UPS battery charging circuits requiring stable component supply and long-lifecycle support.
Supply support for SBL3030PT 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, serving industrial, computing, consumer, and communications markets with over 50 years of power device expertise.
The SBL3030PT belongs to Diodes' high-current Schottky rectifier product line, engineered specifically for low-voltage, high-efficiency power conversion in automotive and industrial equipment where thermal management and surge resilience are critical.
FAQ
Is the SBL3030PT RoHS compliant?
Yes, the SBL3030PT features a lead-free finish and complies with RoHS Directive 2011/65/EU, including exemptions for glass and high-temperature solder per EU Annex Notes 5 and 7. Tin-plated terminals meet MIL-STD-202 Method 208 solderability requirements.
What is the maximum operating temperature for continuous 30A current?
The SBL3030PT delivers its rated 30A average output current only when the case temperature is maintained at 95°C, typically achieved using a properly sized heatsink. At ambient 55°C with RθJC = 2.0°C/W and RθCA ≈ 10°C/W, derating to ~22A is required for reliable long-term operation.
Can the TO-3P metal tab be used as the cathode connection?
Yes-the metal tab is the common cathode terminal and must be electrically connected to the system ground or output rail. It is also the primary thermal path; electrical isolation from chassis is required unless the cathode reference is chassis-grounded in the design.
Why is SBL3030PT marked "Not Recommended for New Design"?
Diodes Incorporated issued this designation due to newer-generation alternatives (e.g., SBL3030PT-G) offering improved VF consistency and tighter IR distribution. The SBL3030PT remains fully qualified and supported for legacy production, repair, and cost-optimized designs where its proven performance meets specification.
SBL3030PT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-3P-3, SC-65-3
- Packaging:
- Tube
- Product Status:
- Obsolete
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io) (per Diode):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 550 mV @ 15 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 mA @ 30 V
- Operating Temperature - Junction:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-3P
SBL3030PT FAQ
1.How can I place an order for SBL3030PT through Aetrix?
Please submit a Request for Quotation (RFQ) for SBL3030PT 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 SBL3030PT reliable?
The price and inventory of SBL3030PT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBL3030PT is usually 5 days.
3.What payment methods are accepted for SBL3030PT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBL3030PT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBL3030PT?
SBL3030PT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBL3030PT 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 SBL3030PT?
For technical support, including SBL3030PT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBL3030PT requirements.
6.How does Aetrix verify that SBL3030PT is sourced from the original manufacturer or authorized distributors?
All SBL3030PT 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 SBL3030PT meets industry standards.
7.What is the process for return or replacement of SBL3030PT?
All SBL3030PT units undergo pre-shipment inspection (PSI). If there is an issue with SBL3030PT, 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 SBL3030PT part is unused and in its original packaging.
Return procedure for SBL3030PT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SBL3030PT Tags
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