My Inquiry
My Account
STMicroelectronics BF3510TV
- Part No.:
- BF3510TV
- Manufacturer:
- STMicroelectronics
- Category:
- Bridge Rectifiers
- Package:
- ISOTOP
- Datasheet:
-
BF3510TV.pdf
- Description:
- BRIDGE RECT 1P 1KV 35A ISOTOP
- Quantity:
- Payment:
- Shipping:
Inventory:9,473
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BF3510TV from STMicroelectronics is a single-phase full-wave silicon bridge rectifier in ISOTOP package, rated for 35 A average forward current (Tc = 80 °C), 1000 V repetitive peak reverse voltage (VRRM), and maximum junction temperature of 150 °C; it delivers 1.30 V max forward voltage at 35 A and 125 °C, and is used in high-power industrial AC/DC conversion stages including UPS, motor drives, and welding equipment.
For engineers reviewing the BF3510TV datasheet, BF3510TV pinout, BF3510TV application, or BF3510TV equivalent, key selection criteria include thermal resistance (0.5 °C/W j-c), surge current capability (300 A IFSM), isolation rating (2500 V RMS), low parasitic capacitance (<45 pF), and mechanical compatibility with ISO-TOP heatsink mounting using M4 screws.
Technical Context
The BF3510TV integrates four fast recovery diodes in a single-phase full-bridge configuration optimized for 50–60 Hz line-frequency rectification. Its ISOTOP plastic package provides electrical isolation up to 2500 V RMS and enables direct heatsink mounting without additional insulators.
Thermal performance is defined by a junction-to-case resistance of 0.5 °C/W, enabling efficient conduction cooling. Electrical behavior includes low reverse leakage (≤0.2 mA at 125 °C, VR = 800 V) and tightly specified forward voltage (1.3 V typ. at 35 A, 125 °C), supporting stable power delivery under sustained load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - supports rectification of 707 V RMS AC input with safety margin for transient overvoltage |
| IF(AV) | 35 A at Tc = 80 °C - defines continuous DC output current capability with heatsink cooling |
| VF (max) | 1.30 V at IF = 35 A, Tj = 125 °C - determines conduction loss and thermal rise in high-current operation |
| Rth(j-c) | 0.5 °C/W - enables precise junction temperature estimation using case temperature measurement |
| IFSM | 300 A (50 Hz, JEDEC method) - withstands inrush currents during cold-start of SMPS and motor drives |
| Isolation | 2500 V RMS - permits safe mounting on shared heatsinks with other isolated power components |
| Cj | < 45 pF - minimizes high-frequency switching noise coupling in adjacent circuits |
Pinout & Package
The BF3510TV uses an ISOTOP (Insulated Standard Outline for Power) plastic package with four terminals: two AC inputs (A1, A2) and two DC outputs (+, −). Mounting is via six M4 screw holes (2 for heatsink, 4 for board attachment); electrical isolation is achieved through molded plastic body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | AC Input 1 | One terminal of AC input pair; connects to live/phase side of transformer secondary |
| A2 | AC Input 2 | Second terminal of AC input pair; completes full-wave bridge input path |
| + | DC Positive Output | Anode of internal upper diodes; supplies positive rail to downstream filter and regulator |
| − | DC Negative Output | Cathode of internal lower diodes; forms return path and system ground reference |
Key Features
| Feature | Design Value |
|---|---|
| Compact ISOTOP package | Enables standardized PCB layout with other ISO-TOP devices and eliminates need for separate insulating washers |
| 0.5 °C/W thermal resistance | Reduces required heatsink size by ~30% compared to standard TO-247 rectifiers at same power dissipation |
| 2500 V RMS isolation | Allows direct mounting on common heatsink with MOSFETs, IGBTs, or controllers without creepage/clearance compromises |
| < 45 pF inter-terminal capacitance | Limits EMI generation during line-frequency zero-crossings and improves EMC compliance in Class A/B systems |
| M4 screw mounting interface | Provides repeatable thermal contact pressure (1.3 N·m torque) for consistent Rth(j-c) across production units |
Applications
| Uninterruptible Power Supply (UPS) | Industrial Motor Drive Input Stage |
|---|---|
Use Scenario: Rectifying three-phase or split-phase utility input before bulk capacitor filtering and inverter stage. IC Role / Device Role / Timing Role: Full-wave bridge rectifier providing unidirectional DC bus voltage with minimal conduction loss and thermal stress. Use Value: 35 A rating and 0.5 °C/W Rth(j-c) support continuous 3–5 kVA output with forced-air-cooled heatsink; 2500 V isolation prevents ground-loop faults in redundant UPS configurations. | Use Scenario: Converting AC line voltage to DC link for variable-frequency drive inverters powering induction motors. IC Role / Device Role / Timing Role: High-current, line-frequency rectifier handling repetitive surges during motor startup and regenerative braking events. Use Value: 300 A IFSM withstands 6× motor locked-rotor current surges; low VF ensures <1.5 W per diode conduction loss at 35 A, reducing heatsink mass by >20% vs. legacy bridges. |
| Resistance Welding Power Supply | High-Power SMPS Front-End |
Use Scenario: Delivering short-duration, high-current DC pulses (100–500 ms) to welding electrodes. IC Role / Device Role / Timing Role: Energy-transfer rectifier operating in intermittent duty cycle with peak currents exceeding 200 A. Use Value: I²t rating of 660 A²·s ensures fusing immunity during 200 ms weld pulses at 300 A; compact ISOTOP footprint simplifies integration into space-constrained transformer-secondary assemblies. | Use Scenario: Primary rectification in telecom or server-grade 1–3 kW SMPS with PFC front-end and LLC resonant converter. IC Role / Device Role / Timing Role: Bulk rectifier converting rectified AC to high-voltage DC bus prior to active PFC stage. Use Value: Low 45 pF capacitance minimizes EMI injection into PFC controller feedback paths; UL94 V0 epoxy meets flame-retardancy requirements for enclosed rack-mount power systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar full-wave bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VUO35-12NO7 | 1200 V VRRM, 35 A IF(AV), TO-247 package, no integrated isolation | Requires external insulator for heatsink mounting; higher VRRM suits 1000 V AC systems | Select when higher reverse voltage margin is needed and board layout allows discrete insulator placement |
| GBPC3510 | 1000 V VRRM, 35 A IF(AV), GBPC package, 1.5 °C/W Rth(j-c), no isolation | Lower thermal performance requires larger heatsink; non-isolated design limits mounting flexibility | Choose only if cost sensitivity outweighs thermal and layout advantages of ISOTOP isolation |
Compared with VUO35-12NO7 and GBPC3510, the BF3510TV uniquely combines 1000 V rating, 0.5 °C/W thermal resistance, and 2500 V RMS isolation in one package-enabling smaller heatsinks, simplified assembly, and elimination of insulating hardware in multi-component power stages.
Availability
BF3510TV is available at Aetrix Electronics and suitable for uninterruptible power supply (UPS), industrial motor drives, resistance welding equipment, and high-power switched-mode power supplies requiring stable component supply and long-term industrial lifecycle support.
Supply support for BF3510TV 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing analog, power, microcontroller, and sensor solutions for industrial, automotive, and consumer markets.
The Bridges series-including BF3510TV-is engineered specifically for high-reliability, high-current AC/DC conversion in industrial power systems where thermal efficiency, mechanical robustness, and board-level standardization are critical.
FAQ
What is the maximum recommended torque for mounting the BF3510TV?
The maximum recommended torque for the M4 mounting screws is 1.5 N·m, with a target value of 1.3 N·m. Exceeding 1.5 N·m risks cracking the ISOTOP plastic housing or deforming screw threads, compromising thermal contact and electrical isolation integrity. Torque must be applied evenly across all six screws to ensure uniform case-to-heatsink pressure.
Can BF3510TV be used in three-phase rectifier configurations?
No-BF3510TV is a single-phase full-wave bridge with two AC inputs and one DC output pair. It cannot replace a three-phase bridge (e.g., six-diode module). For three-phase applications, parallel use of three BF3510TV units is not recommended due to mismatched thermal and forward-voltage characteristics; dedicated three-phase modules like ST's STTH30L06D should be used instead.
Does BF3510TV require a heatsink for operation at 35 A?
Yes-operation at its rated 35 A average forward current requires a heatsink. At Tc = 80 °C, junction temperature reaches 150 °C with 0.5 °C/W Rth(j-c) and ~45 W total power dissipation. Without a heatsink, junction temperature would exceed 150 °C within seconds, triggering thermal runaway. Heatsink sizing must account for ambient temperature, airflow, and mounting interface resistance.
Is BF3510TV compliant with UL 94 V0 flammability standards?
Yes-the ISOTOP package uses UL94 V0-rated epoxy molding compound, verified per UL 94 test method. This certification applies to the molded plastic body only and confirms self-extinguishing behavior after flame exposure. The rating supports use in enclosed power systems where flame propagation resistance is mandated, such as telecom rectifiers and industrial control cabinets.
BF3510TV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- ISOTOP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Diode Type:
- Single Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 1 kV
- Current - Average Rectified (Io):
- 35 A
- Voltage - Forward (Vf) (Max) @ If:
- -
- Current - Reverse Leakage @ Vr:
- 10 µA @ 800 V
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- QC Terminal
- Supplier Device Package:
- ISOTOP®
BF3510TV FAQ
1.How can I place an order for BF3510TV through Aetrix?
Please submit a Request for Quotation (RFQ) for BF3510TV 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 BF3510TV reliable?
The price and inventory of BF3510TV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BF3510TV is usually 5 days.
3.What payment methods are accepted for BF3510TV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BF3510TV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BF3510TV?
BF3510TV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BF3510TV 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 BF3510TV?
For technical support, including BF3510TV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BF3510TV requirements.
6.How does Aetrix verify that BF3510TV is sourced from the original manufacturer or authorized distributors?
All BF3510TV 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 BF3510TV meets industry standards.
7.What is the process for return or replacement of BF3510TV?
All BF3510TV units undergo pre-shipment inspection (PSI). If there is an issue with BF3510TV, 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 BF3510TV part is unused and in its original packaging.
Return procedure for BF3510TV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BF3510TV Tags
-
HDS10M-13
Diodes Incorporated
-
CD-MBL106S
Bourns Inc.
-
MB10S-13
Diodes Incorporated
-
CD-MBL206SL
Bourns Inc.
-
MB4S-TP
Micro Commercial Co
-
MB6S-TP
Micro Commercial Co
-
CD-MBL210S
Bourns Inc.
-
BAS3007ARPPE6327HTSA1
Infineon Technologies
-
DF02M
Diodes Incorporated
-
CD-MBL210SL
Bourns Inc.
-
DF04M
Diodes Incorporated
-
DF01M
Diodes Incorporated
Tech Hub
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
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…
