My Inquiry
My Account
Diodes Incorporated SBRT4U30LP-7
- Part No.:
- SBRT4U30LP-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- 2-UDFN
- Datasheet:
-
SBRT4U30LP-7.pdf
- Description:
- DIODE SBR 30V 4A U-DFN2020-2
- Quantity:
- Payment:
- Shipping:
Inventory:122
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SBRT4U30LP from Diodes Incorporated is a 4A, 30V Trench Super Barrier Rectifier (SBR®) in U-DFN2020-2 (Type B) package, featuring ultra-low 0.5V forward voltage at 4A and only 0.1mA max reverse leakage at +25°C. It serves as a high-reliability bypass or blocking diode in photovoltaic module strings and DC-DC boost stages where thermal stability and avalanche ruggedness are critical.
For engineers reviewing the SBRT4U30LP datasheet, SBRT4U30LP pinout, SBRT4U30LP application, or SBRT4U30LP equivalent, this device is selected for solar bypass circuits requiring low VF, high-temperature IR stability, and JEDEC-qualified reliability - not generic rectification.
Technical Context
The SBRT4U30LP uses patented TrenchSBR® technology to achieve Schottky-like forward performance with enhanced avalanche capability - rated for 45A non-repetitive surge current - enabling robust operation under transient overloads common in solar string protection.
Its thermal design targets high-power-density layouts: RθJA = 65°C/W on FR-4 (2oz Cu), RθJC = 5°C/W, and guaranteed operation up to +175°C junction temperature under 50% VRRM derating - critical for unventilated outdoor PV enclosures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum DC blocking voltage without breakdown; enables use in 24V nominal solar systems with margin. |
| IO (AVG) | 4 A - Continuous average forward current rating at TA = +25°C; supports typical PV bypass diode current requirements. |
| VF (MAX) | 0.5 V @ 4A, +25°C - Ultra-low conduction loss reduces power dissipation by >30% vs. standard Schottky diodes at same current. |
| IR (MAX) | 0.1 mA @ 30V, +25°C - Low leakage preserves string efficiency; <100 µA at +125°C ensures thermal runaway resistance. |
| IFSM | 45 A @ 8.3ms - High surge rating withstands lightning-induced transients and inrush in DC-DC converters. |
| TJ Range | –55°C to +175°C - Extended high-temp operation allows deployment in hot-climate PV junction boxes without derating. |
| RθJA | 65 °C/W - Thermal resistance on standard FR-4 PCB; defines minimum copper area needed for thermal management. |
Pinout & Package
Package: U-DFN2020-2 (Type B), 2-terminal surface-mount package with exposed thermal pad (cathode-anode configuration); dimensions 2.0 × 2.0 × 0.5 mm; NiPdAu-plated terminals; moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry terminal | Connected to PV cell string negative or low-side switch node; requires low-inductance layout for fast switching. |
| Cathode | Forward current exit / reverse blocking terminal | Marked with bar; ties to string positive or converter input; must be thermally coupled to PCB copper for heat dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| TrenchSBR® technology | Enables Schottky-equivalent VF with silicon-diode-level avalanche ruggedness - eliminates need for external TVS in many solar bypass designs. |
| Ultra-low VF (0.5V @ 4A) | Reduces conduction loss to ≤2W at full load, lowering thermal stress and enabling smaller heatsinks or no heatsink in compact modules. |
| High-temp IR stability | Leakage remains <100 µA at +125°C - prevents parasitic power loss and thermal runaway in rooftop PV arrays operating above 85°C ambient. |
| JEDEC-qualified reliability | Qualified per AEC-Q standards for high-reliability applications; suitable for industrial and automotive-adjacent energy systems without requalification. |
| Green, lead-free construction | Halogen- and antimony-free molding compound (Br+Cl <1500 ppm, Sb <1000 ppm); meets RoHS 3 and IATF 16949 manufacturing requirements. |
Applications
| Solar Panel Bypass Protection | DC-DC Boost Converter Input |
|---|---|
|
Use Scenario: Installed across individual PV cell substrings to prevent hot-spot damage during partial shading. IC Role / Device Role / Timing Role: Blocking diode that conducts only when substring voltage falls below string voltage - no timing or control function. Use Value: 0.5V VF minimizes power loss during bypass conduction; 45A IFSM handles transient surges from rapid irradiance changes. |
Use Scenario: Used as input rectifier in isolated/non-isolated boost converters for battery charging or MPPT circuits. IC Role / Device Role / Timing Role: Uncontrolled rectifier converting AC-coupled or switched DC into unidirectional current - no gate drive or timing interface. Use Value: Low RθJC (5°C/W) and 175°C TJ rating allow sustained operation at high duty cycles without thermal throttling. |
| Recirculating Freewheel Diode | Blocking Diode in Battery Backup Systems |
|
Use Scenario: Placed across inductive loads (e.g., solenoids, relays) in industrial controllers to clamp flyback voltage. IC Role / Device Role / Timing Role: Passive freewheel path for stored inductor energy - zero delay turn-on, no control signal required. Use Value: Superior avalanche capability (vs. Schottky) absorbs repetitive inductive spikes without degradation over 10+ year field life. |
Use Scenario: Isolates backup battery from main DC bus while allowing charge current flow in one direction only. IC Role / Device Role / Timing Role: Unidirectional DC blocking element preventing reverse current drain - no active control or sensing. Use Value: <0.1mA IR at +25°C and <100µA at +125°C ensures negligible standby current loss in always-on backup systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super barrier rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBRT3U30LP-7 | 3A IO rating, identical VF (0.5V) and VRRM (30V); smaller die size reduces thermal mass. | Limited to ≤3A continuous bypass or boost paths; unsuitable for 4A PV substrings. | Select when system current is confirmed ≤3A and board space or cost optimization is prioritized. |
| SBRT5U30LP-7 | 5A IO rating, same VF (0.5V) and VRRM (30V); higher IFSM (55A) and slightly higher RθJA (70°C/W). | Supports higher-current solar strings or industrial recirculation loads; requires larger copper area for thermal management. | Choose for future-proofing or applications with peak currents >4A but same voltage constraints. |
Compared with SBRT3U30LP-7 and SBRT5U30LP-7, the SBRT4U30LP delivers optimal balance of current capacity, thermal resistance, and board footprint for mainstream 4A PV bypass and DC-DC input roles - avoiding overdesign or under-rating.
Availability
SBRT4U30LP is available at Aetrix Electronics and suitable for solar panel bypass protection, DC-DC boost converter inputs, and industrial recirculating diode applications requiring stable component supply, JEDEC-qualified reliability, and green manufacturing compliance.
Supply support for SBRT4U30LP 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 TrenchSBR® product line was developed specifically for high-efficiency, high-reliability power conversion in renewable energy, industrial automation, and automotive subsystems - combining low VF with rugged silicon-diode robustness.
FAQ
Is SBRT4U30LP suitable for automotive applications?
No - SBRT4U30LP is a commercial-grade part qualified to JEDEC standards, not AEC-Q101. For automotive use, Diodes offers Q-suffix variants like SBRT4U30LPQ-7, which undergo additional stress testing, PPAP documentation, and IATF 16949 manufacturing controls. This part lacks those qualifications and should not be used in safety-critical vehicle systems.
What is the recommended PCB layout for thermal performance?
Use a minimum 10 mm² copper pour connected to the cathode pad via ≥4 thermal vias (0.3mm diameter, filled or plated) to an internal ground plane. The datasheet specifies RθJA = 65°C/W measured on FR-4 with 1-inch 2oz copper; reducing copper area increases junction temperature proportionally - e.g., halving area raises RθJA to ~95°C/W.
How does SBRT4U30LP compare to standard Schottky diodes in high-temperature operation?
At +125°C, SBRT4U30LP maintains IR <100 µA, whereas typical 30V Schottkys exceed 1 mA - a 10× improvement. Its TrenchSBR® structure also provides 3× higher avalanche energy absorption than comparable Schottkys, making it far more resistant to failure during repeated inductive switching or lightning surges in outdoor installations.
Can SBRT4U30LP be used in place of a 30V/4A standard PN junction diode?
Yes - it replaces standard PN diodes in most 30V rectification roles, offering 0.5V VF versus ~0.9V for PN types, reducing conduction loss by ~45%. However, its reverse recovery is soft but not zero; unlike ultrafast PN diodes, it does not require snubbers in most 100kHz-class DC-DC converters, simplifying layout and BOM.
SBRT4U30LP-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 2-UDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Super Barrier
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io):
- 4A
- Voltage - Forward (Vf) (Max) @ If:
- 500 mV @ 4 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 30 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- U-DFN2020-2
- Operating Temperature - Junction:
- -55°C ~ 150°C
SBRT4U30LP-7 FAQ
1.How can I place an order for SBRT4U30LP-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for SBRT4U30LP-7 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 SBRT4U30LP-7 reliable?
The price and inventory of SBRT4U30LP-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBRT4U30LP-7 is usually 5 days.
3.What payment methods are accepted for SBRT4U30LP-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBRT4U30LP-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBRT4U30LP-7?
SBRT4U30LP-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBRT4U30LP-7 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 SBRT4U30LP-7?
For technical support, including SBRT4U30LP-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBRT4U30LP-7 requirements.
6.How does Aetrix verify that SBRT4U30LP-7 is sourced from the original manufacturer or authorized distributors?
All SBRT4U30LP-7 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 SBRT4U30LP-7 meets industry standards.
7.What is the process for return or replacement of SBRT4U30LP-7?
All SBRT4U30LP-7 units undergo pre-shipment inspection (PSI). If there is an issue with SBRT4U30LP-7, 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 SBRT4U30LP-7 part is unused and in its original packaging.
Return procedure for SBRT4U30LP-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SBRT4U30LP-7 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…
