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Diodes Incorporated SBL3030CT
- Part No.:
- SBL3030CT
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
SBL3030CT.pdf
- Description:
- DIODE ARR SCHOTT 30V 15A TO2203
- Quantity:
- Payment:
- Shipping:
Inventory:8,467
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Product details
Overview
SBL3030CT from Diodes Incorporated is a 30A, 30V dual common-cathode Schottky barrier rectifier in TO-220AB package, featuring 0.55V forward voltage at 15A/25°C, 250A non-repetitive surge capability, and 1.5°C/W junction-to-case thermal resistance-designed for low-voltage, high-frequency DC-DC converter output rectification.
For engineers reviewing the SBL3030CT datasheet, SBL3030CT pinout, SBL3030CT application, or SBL3030CT equivalent, key selection criteria include forward voltage drop at rated current, thermal resistance under heatsink mounting, peak repetitive reverse voltage margin, and surge current handling in flyback/freewheeling topologies.
Technical Context
This dual-diode Schottky rectifier integrates two independent anode terminals sharing a common cathode, enabling synchronous or interleaved output rectification in center-tapped or dual-output SMPS designs. Its guard ring die construction enhances transient immunity without external TVS devices.
Optimized for operation up to +125°C junction temperature, it delivers stable forward conduction with <1.0mA reverse leakage at 25°C and <75mA at 100°C-critical for maintaining efficiency in thermally constrained industrial power supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Repetitive Reverse Voltage | 30 V - sets maximum allowable DC blocking voltage before avalanche breakdown in polarity protection circuits |
| Average Rectified Output Current | 30 A @ TC = 100°C - defines continuous DC current capacity when mounted on heatsink with specified thermal interface |
| Forward Voltage Drop | 0.55 V @ IF = 15 A, TC = 25°C - directly determines conduction loss and thermal load in high-current output stages |
| Non-Repetitive Peak Surge Current | 250 A (8.3 ms half-sine) - supports robust startup and fault recovery in motor drive freewheeling paths |
| Junction-to-Case Thermal Resistance | 1.5 °C/W - enables precise heatsink sizing for target junction temperature rise under full-load conditions |
| Typical Junction Capacitance | 450 pF @ 1 MHz, 4 V reverse - impacts high-frequency switching noise and EMI filter design in >100 kHz converters |
Pinout & Package
Package: TO-220AB, molded plastic case (UL 94V-0), three-terminal through-hole mount with isolated tab (cathode-connected). Terminals are tin-plated, solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 (Lead 1) | Input terminal for first diode path | Carries forward current into cathode node; electrically isolated from Anode 2 and tab |
| Cathode (Tab & Lead 2) | Common output node for both diodes | Internally bonded to metal tab; must be electrically connected to system ground or return plane |
| Anode 2 (Lead 3) | Input terminal for second diode path | Independent conduction path sharing cathode; enables dual-output or phase-split rectification |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Provides inherent transient voltage suppression without external components, reducing layout area and BOM count |
| Low forward voltage drop | 0.55 V at 15 A minimizes I²R losses in high-current 3.3V/5V/12V output rails, improving overall converter efficiency |
| High surge current rating | 250 A capability ensures reliable operation during inductive load turn-off and input line transients |
| TO-220AB thermal performance | 1.5°C/W RθJC allows direct heatsink mounting for sustained 30 A conduction without derating in ambient ≤50°C |
Applications
| DC-DC Converter Output Rectification | Motor Drive Freewheeling |
|---|---|
Use Scenario: Secondary-side synchronous rectification in 300W telecom brick with dual +12V/+5V outputs. IC Role / Device Role / Timing Role: Dual-anode Schottky rectifier providing low-loss conduction path for transformer secondary windings. Use Value: 0.55V VF reduces conduction loss by ~35% vs. standard PN rectifiers, lowering thermal stress on heatsink. | Use Scenario: Bidirectional flyback path in 24V BLDC gate driver power stage. IC Role / Device Role / Timing Role: Freewheeling diode clamping inductive kickback during MOSFET turn-off transitions. Use Value: 250A IFSM withstands repeated motor stall currents without degradation. |
| Polarity Protection Circuit | Industrial Power Supply Input Stage |
Use Scenario: Reverse-voltage safeguard in 24V PLC I/O module powered from field wiring. IC Role / Device Role / Timing Role: Series-connected Schottky blocking diode preventing damage from accidental battery reversal. Use Value: 30V VRRM provides 2× safety margin over nominal 24V rail, ensuring long-term reliability. | Use Scenario: Input rectification in DIN-rail mounted 48V AC/DC power supply with wide-input range. IC Role / Device Role / Timing Role: High-current bridge leg component handling 30A average input current after filtering. Use Value: 1.5°C/W RθJC enables compact heatsink integration within sealed enclosure at 50°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 |
|---|---|---|---|
| Vishay VS-30CPH03-M3 | 30V VRRM, 0.52V VF @ 15A, TO-247AC package, higher RθJC (1.7°C/W) | Requires larger heatsink footprint due to TO-247AC mounting and higher thermal resistance | Select when lower forward voltage is prioritized over package compatibility and thermal interface simplicity |
| ON Semiconductor MBR3030CT | 30V VRRM, 0.57V VF @ 15A, identical TO-220AB package and pinout | Direct physical replacement with minor VF trade-off; same thermal and layout integration | Preferred for drop-in substitution where 0.02V higher conduction loss is acceptable for supply chain continuity |
Compared with VS-30CPH03-M3 and MBR3030CT, the SBL3030CT offers optimal balance of low VF, proven TO-220AB thermal interface, and guard ring transient hardening-making it especially suitable for space-constrained industrial power modules requiring robustness without redesign.
Availability
SBL3030CT is available at Aetrix Electronics and suitable for DC-DC converter output rectification, motor drive freewheeling, and polarity protection applications requiring stable component supply and long-lifecycle support.
Supply support for SBL3030CT 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 SBL30xxCT series belongs to Diodes' high-current Schottky rectifier product line, engineered specifically for efficiency-critical secondary-side power conversion in industrial, computing, and telecom power supplies.
FAQ
Is the SBL3030CT RoHS compliant?
Yes, the SBL3030CT features a lead-free finish and complies with RoHS Directive 2002/95/EC (as revised in 13.2.2003), 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 junction temperature?
The SBL3030CT has a specified operating junction temperature range of –55°C to +125°C. Its 1.5°C/W thermal resistance and 30A current rating assume proper heatsink mounting at TC = 100°C; exceeding +125°C risks irreversible parametric shift and accelerated failure.
Can SBL3030CT replace SBL3040CT in a 30V design?
No-SBL3030CT is rated for 30V VRRM, while SBL3040CT is rated for 40V. Substituting SBL3030CT in a design originally specifying SBL3040CT risks reverse breakdown if transient voltages exceed 30V, even with nominal 30V operation. Margin analysis must confirm worst-case reverse stress remains below 30V.
How is the cathode terminal configured in the TO-220AB package?
In the SBL3030CT TO-220AB package, the cathode is electrically connected to the metal tab and Lead 2. The tab must be insulated from chassis ground unless intentionally used as the circuit return node; Anode 1 (Lead 1) and Anode 2 (Lead 3) are fully isolated from each other and from the cathode/tab.
SBL3030CT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-220-3
- 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:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220-3
SBL3030CT FAQ
1.How can I place an order for SBL3030CT through Aetrix?
Please submit a Request for Quotation (RFQ) for SBL3030CT 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 SBL3030CT reliable?
The price and inventory of SBL3030CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBL3030CT is usually 5 days.
3.What payment methods are accepted for SBL3030CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBL3030CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBL3030CT?
SBL3030CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBL3030CT 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 SBL3030CT?
For technical support, including SBL3030CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBL3030CT requirements.
6.How does Aetrix verify that SBL3030CT is sourced from the original manufacturer or authorized distributors?
All SBL3030CT 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 SBL3030CT meets industry standards.
7.What is the process for return or replacement of SBL3030CT?
All SBL3030CT units undergo pre-shipment inspection (PSI). If there is an issue with SBL3030CT, 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 SBL3030CT part is unused and in its original packaging.
Return procedure for SBL3030CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SBL3030CT Tags
-
BAV99-7-F
Diodes Incorporated
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BAV70LT1G
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BAT54S-7-F
Diodes Incorporated
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BAV99LT1G
onsemi
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BAT54S,215
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