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Vishay General Semiconductor - Diodes Division B250C800DM-E3/45
- Part No.:
- B250C800DM-E3/45
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Bridge Rectifiers
- Package:
- 4-EDIP (0.300", 7.62mm)
- Datasheet:
-
B250C800DM-E3/45.pdf
- Description:
- BRIDGE RECT 1P 400V 900MA DFM
- Quantity:
- Payment:
- Shipping:
Inventory:807
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Product details
Overview
B250C800DM-E3/45 from Vishay General Semiconductor is a glass passivated single-phase bridge rectifier in DFM package, rated for 400 V repetitive peak reverse voltage (VRRM), 0.9 A average forward output current (IF(AV)), and 45 A non-repetitive peak surge current (IFSM). It delivers 1.0 V forward voltage drop at 0.9 A and supports general-purpose AC/DC full-wave rectification in power adapters and lighting ballasts.
For engineers reviewing the B250C800DM-E3/45 datasheet, B250C800DM-E3/45 pinout, B250C800DM-E3/45 application, or B250C800DM-E3/45 equivalent, key selection criteria include its 400 V VRRM rating, 125 °C maximum junction temperature, DFM surface-mount package with matte tin-plated leads, and compliance with JESD 22-B106 solder dip (275 °C, 10 s).
Technical Context
This device implements a quad-diode single-phase bridge configuration optimized for R-, L-, and C-load conditions. Its thermal resistance is 40 °C/W (junction-to-ambient) and 15 °C/W (junction-to-lead) when mounted on a PCB with 13 mm × 13 mm copper pads, enabling reliable operation up to 125 °C junction temperature.
It supports capacitive loads up to 500 μF (at VRMS = ±10 %), requires minimum series resistance of 8.0 Ω for C-load stability, and exhibits ≤10 μA reverse leakage current per diode at rated VRRM - critical for low-power standby efficiency in SMPS and battery chargers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - maximum repetitive reverse voltage; defines safe AC input voltage ceiling for bridge operation |
| IF(AV) | 0.9 A - average DC output current under free-air conditions at TA = 45 °C; sets continuous power handling limit |
| IFSM | 45 A - peak non-repetitive surge current capability; withstands inrush during cold-start in adapters |
| VF @ 0.9 A | 1.0 V - forward voltage per diode; determines conduction loss and thermal dissipation in rectifier stage |
| IR @ VRRM | 10 μA - reverse leakage per diode; ensures minimal standby power loss in off-state |
| TJ max. | 125 °C - maximum operating junction temperature; enables use in thermally constrained consumer enclosures |
| RθJA | 40 °C/W - thermal resistance to ambient; informs heatsinking requirements on standard PCB layout |
Pinout & Package
Package: DFM - surface-mount, molded plastic case meeting UL 94 V-0 flammability rating; dimensions 8.51 mm × 7.6 mm × 2.03 mm (L × W × H); matte tin-plated leads compliant with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC1 | Input AC terminal 1 | One leg of AC input; connects to transformer secondary or line input; polarity-marked on body |
| AC2 | Input AC terminal 2 | Second leg of AC input; completes full-wave bridge input path; symmetric with AC1 |
| + (Anode) | Positive DC output | Full-wave rectified positive output node; supplies filtered DC bus to downstream regulator |
| – (Cathode) | Negative DC output | Full-wave rectified negative return path; common reference for load and filtering capacitor |
Key Features
| Feature | Design Value |
|---|---|
| High surge current capability | 45 A IFSM enables robust inrush handling in battery chargers and SMPS without external fusing |
| Glass passivation | Enhances moisture resistance and long-term reliability in humid environments like office equipment |
| Solder dip compatibility | Rated for 275 °C / 10 s per JESD 22-B106 - supports wave soldering without degradation |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker test; suitable for commercial-grade automated assembly |
| Low thermal resistance | RθJL = 15 °C/W allows efficient heat transfer to PCB copper, reducing need for auxiliary heatsinks |
Applications
| Power Adapters | LED Lighting Ballasts |
|---|---|
Use Scenario: AC-to-DC conversion in compact wall-mounted USB-C and multi-port adapters. IC Role / Device Role / Timing Role: Single-phase bridge rectifier converting 100–240 VAC input to unregulated DC bus. Use Value: 400 V VRRM safely accommodates 240 VAC mains with margin; 0.9 A IF(AV) supports up to 10 W output with standard filtering. | Use Scenario: Input rectification in constant-current LED drivers for commercial downlights. IC Role / Device Role / Timing Role: Full-wave bridge providing stable DC input to PFC and buck converter stages. Use Value: 10 μA IR minimizes no-load losses; glass passivation ensures reliability in enclosed, thermally stressed fixtures. |
| Home Appliance Power Supplies | Office Equipment SMPS |
Use Scenario: Primary-side rectification in microwave oven control boards and washing machine motor controllers. IC Role / Device Role / Timing Role: Bridge rectifier feeding bulk capacitor in offline flyback or half-bridge converters. Use Value: 45 A IFSM withstands high inrush from large electrolytic capacitors; DFM package fits tight board layouts. | Use Scenario: Input stage rectification in laser printer and multifunction peripheral power supplies. IC Role / Device Role / Timing Role: AC/DC front-end component delivering regulated rails to logic, motors, and sensors. Use Value: UL 94 V-0 molding compound meets safety standards; 125 °C TJ max supports operation near hot components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GBU4K | 400 V VRRM, 4 A IF(AV), larger GBU package (10.5 mm × 10.5 mm) | Higher current capacity but requires more PCB area; less suitable for space-constrained adapters | Select when >0.9 A continuous output is needed and board space permits larger footprint |
| DB107S | 1000 V VRRM, 1.0 A IF(AV), same DFM footprint but higher VF (1.1 V) | Better voltage margin for industrial 3-phase-derived inputs; slightly higher conduction loss | Choose for legacy designs requiring higher reverse voltage headroom without layout change |
Compared with B250C800DM-E3/45, GBU4K offers +3.1× average current but increases board area by ~60 %, while DB107S retains DFM compatibility and raises VRRM to 1000 V at the cost of +0.1 V VF - making it viable where overvoltage transients dominate design constraints.
Availability
B250C800DM-E3/45 is available at Aetrix Electronics and suitable for power adapters, LED lighting ballasts, and home appliance power supplies requiring stable component supply, RoHS-compliant sourcing, and consistent DFM package delivery.
Supply support for B250C800DM-E3/45 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and optoelectronics with emphasis on reliability, efficiency, and manufacturability.
The B-Series bridge rectifier family - including B250C800DM-E3/45 - is engineered for cost-effective, high-yield AC/DC conversion in consumer and industrial power supplies, prioritizing surge robustness, thermal performance, and automated assembly compatibility.
FAQ
What is the maximum junction temperature rating for B250C800DM-E3/45?
The B250C800DM-E3/45 has a maximum junction temperature (TJ max.) of +125 °C, verified per Vishay Document Number 88533. This rating allows operation in thermally demanding environments such as enclosed power adapters and LED drivers. Derating curves in the datasheet specify reduced IF(AV) above 45 °C ambient, and thermal design must account for RθJA = 40 °C/W to ensure B250C800DM-E3/45 remains within safe operating limits.
Does B250C800DM-E3/45 support wave soldering?
Yes, B250C800DM-E3/45 is qualified for solder dip per JESD 22-B106: 275 °C maximum for 10 seconds. Its matte tin-plated leads meet J-STD-002 and JESD 22-B102 solderability standards, and the E3 suffix confirms compliance with JESD 201 Class 1A whisker testing. These specifications make B250C800DM-E3/45 suitable for high-volume automated wave soldering in commercial manufacturing.
What is the reverse leakage current specification for B250C800DM-E3/45?
The B250C800DM-E3/45 exhibits a maximum reverse leakage current (IR) of 10 μA per diode at rated VRRM = 400 V and TA = 25 °C, as specified in the Electrical Characteristics table of Vishay Document 88533. This low IR contributes to minimal standby power loss in applications like battery chargers and always-on office equipment, where B250C800DM-E3/45 serves as the primary rectifier.
Is B250C800DM-E3/45 pin-compatible with other B-Series bridge rectifiers?
B250C800DM-E3/45 shares the DFM package and identical 4-pin quad configuration with B40C800DM, B80C800DM, B125C800DM, and B380C800DM, but differs in VRRM (400 V) and associated ratings like VRMS (250 V) and VRWM (600 V). While mechanical pinout is identical, electrical substitution requires verification of voltage and surge requirements - B250C800DM-E3/45 is not a drop-in replacement for lower- or higher-voltage variants without circuit review.
What is the minimum series resistor required for capacitive loads with B250C800DM-E3/45?
For capacitive loads at VRMS = ±10 %, B250C800DM-E3/45 requires a minimum series resistance (RT) of 8.0 Ω, per the Maximum Ratings table in Vishay Document 88533. This value stabilizes inrush current and prevents excessive stress during capacitor charging in applications such as SMPS input stages - ensuring reliable operation of B250C800DM-E3/45 when used with typical 470–1000 μF bulk capacitors.
B250C800DM-E3/45 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- 4-EDIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Diode Type:
- Single Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 400 V
- Current - Average Rectified (Io):
- 900 mA
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 900 mA
- Current - Reverse Leakage @ Vr:
- 10 µA @ 400 V
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DFM
B250C800DM-E3/45 FAQ
1.How can I place an order for B250C800DM-E3/45 through Aetrix?
Please submit a Request for Quotation (RFQ) for B250C800DM-E3/45 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 B250C800DM-E3/45 reliable?
The price and inventory of B250C800DM-E3/45 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for B250C800DM-E3/45 is usually 5 days.
3.What payment methods are accepted for B250C800DM-E3/45?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B250C800DM-E3/45 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for B250C800DM-E3/45?
B250C800DM-E3/45 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your B250C800DM-E3/45 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 B250C800DM-E3/45?
For technical support, including B250C800DM-E3/45 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B250C800DM-E3/45 requirements.
6.How does Aetrix verify that B250C800DM-E3/45 is sourced from the original manufacturer or authorized distributors?
All B250C800DM-E3/45 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 B250C800DM-E3/45 meets industry standards.
7.What is the process for return or replacement of B250C800DM-E3/45?
All B250C800DM-E3/45 units undergo pre-shipment inspection (PSI). If there is an issue with B250C800DM-E3/45, 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 B250C800DM-E3/45 part is unused and in its original packaging.
Return procedure for B250C800DM-E3/45:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
B250C800DM-E3/45 Tags
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