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Diodes Incorporated SBL3035PT
- Part No.:
- SBL3035PT
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-3P-3, SC-65-3
- Datasheet:
-
SBL3035PT.pdf
- Description:
- DIODE ARRAY SCHOTT 35V 15A TO-3P
- Quantity:
- Payment:
- Shipping:
Inventory:4,623
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Product details
Overview
SBL3035PT from Diodes Incorporated is a 35V, 30A TO-3P-packaged Schottky barrier rectifier with 0.70V forward voltage drop at 15A and 25°C, 2.0°C/W junction-to-case thermal resistance, and 275A non-repetitive surge capability-designed for low-voltage, high-frequency inverter freewheeling and polarity protection circuits.
For engineers reviewing the SBL3035PT datasheet, SBL3035PT pinout, SBL3035PT application, or SBL3035PT equivalent, key selection criteria include peak reverse voltage (35V), average output current (30A @ TC=95°C), forward voltage drop (0.70V @ 15A), thermal resistance (2.0°C/W), and TO-3P mechanical compatibility in high-power DC/DC and motor drive designs.
Technical Context
This dual-anode common-cathode Schottky rectifier uses guard ring die construction to enhance transient immunity and supports high-current switching in unidirectional power paths. Its low VF and high IFSM enable efficient energy recovery in flyback and freewheeling topologies.
Rated for operation from –65°C to +150°C, it delivers stable performance under pulsed load conditions with 1100pF typical junction capacitance at 4V reverse bias and 1MHz, minimizing switching losses in 50–100kHz power stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 35 V - Maximum repetitive reverse voltage before breakdown; sets safe operating limit in 24V–32V bus protection applications. |
| IO @ TC=95°C | 30 A - Continuous average forward current with heatsink; defines minimum heatsink sizing for sustained 30A conduction. |
| VFM @ IF=15A | 0.70 V - Forward voltage at rated half-load; directly determines conduction loss (10.5W per diode at 15A). |
| IFSM (8.3ms) | 275 A - Non-repetitive surge rating; supports motor startup and capacitor-charging inrush without failure. |
| RθJc | 2.0 °C/W - Thermal resistance from junction to case; enables precise junction temperature estimation when mounted on heatsink. |
| CT @ 1MHz | 1100 pF - Junction capacitance at 4V reverse bias; impacts high-frequency turn-off behavior and EMI in SMPS designs. |
Pinout & Package
Package: TO-3P molded plastic case (UL 94V-0), 5.6g weight, tin-plated terminals solderable per MIL-STD-202 Method 208. Polarity marked on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 | Input terminal for first rectifying element | Accepts positive input during forward conduction; electrically isolated from Anode 2 in dual-die configuration. |
| Anode 2 | Input terminal for second rectifying element | Enables dual-channel or parallel anode routing; shared cathode simplifies PCB layout in dual-output supplies. |
| Cathode | Common output node | Single low-impedance return path for both anodes; must be thermally coupled to heatsink for rated 30A operation. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Improves transient voltage immunity and reduces leakage drift under ESD or load dump stress. |
| Low forward voltage (0.70V) | Reduces conduction loss by ~30% vs. comparable silicon rectifiers, increasing efficiency in 12–24V systems. |
| 275A surge rating | Withstands 8.3ms half-sine surges up to 275A-sufficient for 3× rated current in motor drive snubber circuits. |
| TO-3P package with 2.0°C/W RθJc | Enables direct bolt-down heatsinking for high-power dissipation without thermal interface material degradation. |
Applications
| DC Motor Drive Freewheeling | 24V Automotive Power Supply Protection |
|---|---|
Use Scenario: Bidirectional current path in brushed DC motor H-bridge, where back-EMF must be clamped during PWM off-time. IC Role / Device Role / Timing Role: Freewheeling diode providing low-loss recirculation path for inductive kickback. Use Value: 0.70V VF limits clamp loss to ≤10.5W at 15A, reducing heatsink mass by 40% vs. standard PN rectifiers. | Use Scenario: Reverse-polarity protection in 24V vehicle infotainment head units with battery backup. IC Role / Device Role / Timing Role: Series-connected blocking diode preventing damage during accidental battery reversal. Use Value: 35V VRRM exceeds automotive load-dump transients (ISO 7637-2 Pulse 5a), ensuring robustness without external TVS. |
| High-Frequency Inverter Output Stage | Industrial DC/DC Converter Output Rectification |
Use Scenario: Output rectification in 60kHz resonant LLC inverters for LED street lighting drivers. IC Role / Device Role / Timing Role: High-speed unidirectional current valve synchronizing with MOSFET switching edges. Use Value: 1100pF CT minimizes capacitive turn-off delay, preserving >94% system efficiency at full load. | Use Scenario: Secondary-side synchronous rectification replacement in 48V-to-12V telecom DC/DC modules. IC Role / Device Role / Timing Role: Low-VF passive rectifier enabling cost-effective alternative to gate-driven SR controllers. Use Value: 30A continuous rating supports 360W output with <1.5°C junction rise above heatsink at 25°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, same TO-3P, 0.52V VFM @ 15A, but only 225A IFSM | Limited to lower-surge applications; unsuitable for motor startup or high-inrush loads | Select only if VRRM margin <5V is acceptable and surge events are rare |
| ON Semiconductor MBR3035CT | 35V VRRM, TO-220AB package, 0.72V VFM @ 15A, 2.5°C/W RθJc | Higher thermal resistance requires larger heatsink; not mechanically interchangeable with TO-3P footprint | Choose only when board space permits TO-220 layout and thermal design accommodates +0.5°C/W penalty |
Compared with VS-30CPH03-M3 and MBR3035CT, the SBL3035PT provides superior surge robustness (275A vs. 225A/200A) and lower thermal resistance (2.0°C/W), making it optimal for high-reliability 24–32V industrial inverters where mechanical fit and transient resilience are critical.
Availability
SBL3035PT is available at Aetrix Electronics and suitable for DC motor drives, automotive power protection, high-frequency inverters, and industrial DC/DC converters requiring stable component supply and long-term manufacturability assurance.
Supply support for SBL3035PT 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-efficiency power management and signal integrity solutions for industrial, computing, and automotive markets.
The SBL30xxPT series belongs to Diodes' high-current Schottky rectifier product line, engineered specifically for low-VF, high-surge, thermally demanding power conversion stages in 12–60V systems.
FAQ
Is SBL3035PT RoHS compliant?
Yes, SBL3035PT features lead-free finish and complies with RoHS Directive 2011/65/EU (Revision 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 junction temperature for continuous operation?
The SBL3035PT has an operating junction temperature range of –65°C to +150°C. For continuous 30A operation, case temperature must be maintained at ≤95°C per derating curve (Fig. 1), implying maximum allowable junction temperature is 150°C when RθJc = 2.0°C/W and heatsink design sustains ΔT ≤ 55°C.
Can SBL3035PT be used in parallel configurations?
Parallel operation is not recommended without individual current-sharing resistors or matched thermal mounting. The device lacks built-in current-balancing features, and parameter spread (e.g., VFM tolerance ±0.05V) may cause unequal conduction-potentially leading to thermal runaway if heatsinking is asymmetric.
Why is SBL3035PT marked "Not Recommended for New Design"?
Diodes Incorporated issued this designation due to planned obsolescence and newer-generation alternatives (e.g., SBR series) offering improved VFM, lower leakage, or enhanced surge robustness. Existing designs may continue using SBL3035PT, but new projects should evaluate SBR30U30P or similar successors for long-term supply assurance.
SBL3035PT 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):
- 35 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 @ 35 V
- Operating Temperature - Junction:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-3P
SBL3035PT FAQ
1.How can I place an order for SBL3035PT through Aetrix?
Please submit a Request for Quotation (RFQ) for SBL3035PT 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 SBL3035PT reliable?
The price and inventory of SBL3035PT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBL3035PT is usually 5 days.
3.What payment methods are accepted for SBL3035PT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBL3035PT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBL3035PT?
SBL3035PT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBL3035PT 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 SBL3035PT?
For technical support, including SBL3035PT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBL3035PT requirements.
6.How does Aetrix verify that SBL3035PT is sourced from the original manufacturer or authorized distributors?
All SBL3035PT 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 SBL3035PT meets industry standards.
7.What is the process for return or replacement of SBL3035PT?
All SBL3035PT units undergo pre-shipment inspection (PSI). If there is an issue with SBL3035PT, 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 SBL3035PT part is unused and in its original packaging.
Return procedure for SBL3035PT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SBL3035PT Tags
-
BAV99-7-F
Diodes Incorporated
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BAT54S-7-F
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BAV99LT1G
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BAT54S,215
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