Vishay General Semiconductor - Diodes Division B40C1000G-E4/51
- Part No.:
- B40C1000G-E4/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Bridge Rectifiers
- Package:
- 4-Circular, WOG
- Datasheet:
-
B40C1000G-E4/51.pdf
- Description:
- BRIDGE RECT 1PHASE 65V 1A WOG
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
B40C1000G-E4/51 from Vishay Semiconductors is a glass passivated single-phase bridge rectifier in WOG package, rated for 1.0 A average forward output current, 65 V maximum repetitive peak reverse voltage (VRRM), and 45 A non-repetitive peak forward surge current (IFSM). It delivers low forward voltage drop (1.0 V at 1.0 A) and ultra-low reverse leakage (10 µA at rated VRRM), enabling efficient AC/DC conversion in compact consumer power supplies.
For engineers reviewing the B40C1000G-E4/51 datasheet, B40C1000G-E4/51 pinout, B40C1000G-E4/51 application, or B40C1000G-E4/51 equivalent, key selection criteria include its 65 V VRRM, WOG surface-mount compatibility, 125 °C max junction temperature, RoHS-compliant e4 termination, and verified performance under capacitive-load conditions up to 5000 µF.
Technical Context
This device implements a monolithic four-diode full-wave bridge configuration with silver-plated leads solderable per J-STD-002 and JESD22-B102. Its glass passivation ensures stable reverse characteristics across -40 °C to +125 °C operating range and high dielectric strength for reliable isolation in mains-connected circuits.
The B40C1000G-E4/51 is optimized for R-, L-, and C-load operation with derated current capability above 45 °C ambient, and supports 50–60 Hz input frequencies. Thermal resistance is specified as 36 °C/W (junction-to-ambient) and 11 °C/W (junction-to-lead) when mounted on PCB copper pads per JEDEC standard layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 65 V - Maximum repetitive reverse voltage the device blocks without breakdown; defines safe AC input rating (40 V RMS). |
| IF(AV) | 1.0 A - Average DC output current capability under capacitive-load conditions at 45 °C ambient. |
| IFSM | 45 A - Peak surge current survivability for one half-sine cycle (8.3 ms), critical for inrush handling in adapters. |
| VF @ 1.0 A | 1.0 V - Forward voltage per diode at rated current; determines conduction loss and thermal dissipation. |
| IR @ VRRM | 10 µA - Reverse leakage per diode at full rated voltage; ensures minimal standby power loss. |
| TJ max | 125 °C - Maximum allowable junction temperature; sets thermal design margin for PCB layout and heatsinking. |
| RθJA | 36 °C/W - Junction-to-ambient thermal resistance on standard 5.5 mm × 5.5 mm copper pads; used to calculate temperature rise. |
Pinout & Package
Package: WOG - Surface-mount, molded plastic case meeting UL 94 V-0 flammability rating, with silver-plated leads and polarity markings (+, −, ~) on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ~ (AC1) | AC input terminal 1 | One of two alternating-current inputs; connects to transformer secondary or AC line phase. |
| ~ (AC2) | AC input terminal 2 | Second AC input; completes full-wave bridge input path with AC1. |
| + | Positive DC output | Rectified anode-side output node; supplies positive rail to downstream filter and regulator. |
| − | Negative DC output / return | Rectified cathode-side return node; serves as common reference for DC load and filtering. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivation | Ensures stable reverse characteristics and long-term reliability under humid or thermally cycling conditions. |
| High surge current rating (45 A) | Supports repeated cold-start inrush events in capacitor-input power supplies without degradation. |
| Low IR (10 µA) | Minimizes no-load power consumption and improves efficiency in standby-mode consumer electronics. |
| Solderable per J-STD-002/JESD22-B102 | Validates lead finish compatibility with standard reflow and wave soldering processes for automated assembly. |
| RoHS-compliant e4 termination | Meets global environmental compliance requirements without compromising solderability or thermal performance. |
Applications
| USB Wall Adapter Power Supply | LED Lighting Ballast |
|---|---|
Use Scenario: Compact 5 V/1 A AC/DC adapter converting 100–240 VAC mains to regulated USB output. IC Role / Device Role / Timing Role: Primary full-wave bridge rectifier converting AC input to pulsating DC before bulk capacitance and switching regulation. Use Value: Low VF (1.0 V) reduces conduction loss and thermal stress in space-constrained enclosures. | Use Scenario: Constant-voltage LED driver for residential downlights using capacitor-input rectification. IC Role / Device Role / Timing Role: AC-to-DC front-end rectifier delivering smoothed DC to buck converter stage. Use Value: 5000 µF max load capacitance rating enables stable operation with high-C input filters required for EMI compliance. |
| Home Appliance Control Board | Small-Appliance AC/DC Converter |
Use Scenario: Embedded microcontroller power supply in washing machine control module. IC Role / Device Role / Timing Role: Isolated auxiliary rectifier providing 12 V DC for logic and sensor circuitry. Use Value: 125 °C max junction temperature supports operation near heat-generating motor drivers. | Use Scenario: Power conversion in cordless vacuum charger base station. IC Role / Device Role / Timing Role: Bridge rectifier in offline flyback primary side, handling 40 V RMS input. Use Value: 65 V VRRM provides sufficient margin over 40 V RMS (56.6 V peak) for robustness against line transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GBU4K-E4/51 | Higher VRRM (800 V), same IF(AV) (1.0 A), larger GBU package (through-hole) | Designed for higher-voltage industrial AC inputs; not surface-mount compatible | Select when >65 V reverse blocking is required and through-hole mounting is acceptable. |
| MB10F-E4/51 | Lower VRRM (100 V), same WOG package, identical pinout and footprint | Marginally suitable for 65 V systems but lacks safety margin for transient surges | Acceptable only if system-level testing confirms adequate transient immunity below 100 V peak. |
Compared with B40C1000G-E4/51, GBU4K-E4/51 offers higher voltage robustness at the cost of board space and assembly method, while MB10F-E4/51 shares the same footprint but sacrifices reverse voltage margin-making B40C1000G-E4/51 optimal for 40 V RMS consumer-grade inputs requiring SMT integration and thermal efficiency.
Availability
B40C1000G-E4/51 is available at Aetrix Electronics and suitable for USB wall adapters, LED lighting ballasts, home appliance control boards, and small-appliance AC/DC converters requiring stable component supply, RoHS compliance, and consistent WOG-package sourcing.
Supply support for B40C1000G-E4/51 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 Intertechnology is a global semiconductor manufacturer specializing in discrete components, sensors, and passive elements, with emphasis on reliability, precision, and power efficiency.
The B40C1000G-E4/51 belongs to Vishay's WOG-series glass-passivated bridge rectifiers, engineered for high-volume consumer power conversion where compact size, low leakage, and thermal stability are critical.
FAQ
What is the maximum RMS input voltage supported by the B40C1000G-E4/51?
The B40C1000G-E4/51 supports a maximum RMS input voltage of 40 V for R- and C-load configurations. This corresponds to a peak AC voltage of approximately 56.6 V, which remains safely within its 65 V VRRM rating and provides margin for typical line transients. The device is not rated for universal 100–240 VAC inputs.
Does the B40C1000G-E4/51 require heatsinking in typical applications?
In most consumer applications operating at ≤1.0 A average output current and ambient temperatures ≤45 °C, the B40C1000G-E4/51 does not require external heatsinking. Its thermal resistance (RθJA = 36 °C/W) and low VF (1.0 V) limit self-heating to manageable levels when mounted on standard 5.5 mm × 5.5 mm PCB copper pads.
Is the B40C1000G-E4/51 pin-compatible with other WOG-package bridge rectifiers?
Yes, the B40C1000G-E4/51 uses the standard WOG footprint and pinout (AC1, AC2, +, −), making it mechanically interchangeable with other Vishay WOG-series bridges like B80C1000G-E4/51 and MB10F-E4/51. However, electrical ratings-including VRRM and IFSM-must be verified per application requirements.
What is the minimum series resistor required for C-load operation at rated voltage?
For C-load operation at VRMS = 40 V ±10 %, the B40C1000G-E4/51 requires a minimum series resistor of 1.0 Ω to limit inrush current and prevent fuse blowing or diode failure. This value is derived from the manufacturer's derating curve and thermal fusing I²t rating of 10 A²s.
Can the B40C1000G-E4/51 be used in automotive applications?
No-the B40C1000G-E4/51 is rated for commercial-grade operation (−40 °C to +125 °C junction), but it is not AEC-Q200 qualified or specified for automotive electrical environments. Its 65 V VRRM is insufficient for 12 V or 24 V battery systems subject to load-dump transients, which exceed 65 V peak. Automotive designs require higher-rated, qualified alternatives.
B40C1000G-E4/51 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- 4-Circular, WOG
- Packaging:
- Bulk
- Product Status:
- Active
- Diode Type:
- Single Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 65 V
- Current - Average Rectified (Io):
- 1 A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 1 A
- Current - Reverse Leakage @ Vr:
- 10 µA @ 65 V
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- WOG
B40C1000G-E4/51 FAQ
1.How can I place an order for B40C1000G-E4/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for B40C1000G-E4/51 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 B40C1000G-E4/51 reliable?
The price and inventory of B40C1000G-E4/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for B40C1000G-E4/51 is usually 5 days.
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Once your B40C1000G-E4/51 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 B40C1000G-E4/51?
For technical support, including B40C1000G-E4/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B40C1000G-E4/51 requirements.
6.How does Aetrix verify that B40C1000G-E4/51 is sourced from the original manufacturer or authorized distributors?
All B40C1000G-E4/51 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 B40C1000G-E4/51 meets industry standards.
7.What is the process for return or replacement of B40C1000G-E4/51?
All B40C1000G-E4/51 units undergo pre-shipment inspection (PSI). If there is an issue with B40C1000G-E4/51, 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 B40C1000G-E4/51 part is unused and in its original packaging.
Return procedure for B40C1000G-E4/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
B40C1000G-E4/51 Tags

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