My Inquiry
My Account
Vishay General Semiconductor - Diodes Division GBU6A-M3/51
- Part No.:
- GBU6A-M3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Bridge Rectifiers
- Package:
- 4-SIP, GBU
- Datasheet:
-
GBU6A-M3/51.pdf
- Description:
- BRIDGE RECT 1PHASE 50V 3.8A GBU
- Quantity:
- Payment:
- Shipping:
Inventory:5,722
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
GBU6A-M3/51 from Vishay General Semiconductor is a glass passivated single-phase bridge rectifier with 50 V maximum repetitive peak reverse voltage, 6.0 A average forward rectified output current at TC = 90 °C, and 175 A peak forward surge current. It features 1.0 V forward voltage at 6.0 A, 5 μA reverse leakage at 25 °C, and is rated for operation from –55 °C to +150 °C junction temperature - used in AC/DC full-wave rectification for switching mode power supplies and consumer electronics.
For engineers reviewing the GBU6A-M3/51 datasheet, GBU6A-M3/51 pinout, GBU6A-M3/51 application, or GBU6A-M3/51 equivalent, key selection considerations include its 50 V VRRM rating, GBU package mechanical outline, thermal resistance of 20 °C/W (RθJA), UL E54214 recognition, and halogen-free RoHS-compliant construction per M3 suffix.
Technical Context
The GBU6A-M3/51 integrates four silicon diodes in a single-phase full-wave bridge configuration with in-line terminal arrangement and polarity marked on the case. Its glass passivation ensures stable reverse characteristics and high dielectric strength (1500 VRMS) between case and terminals.
Designed for PCB mounting with 12 mm × 12 mm copper pads and 9.5 mm lead length, it delivers 3.8 A average forward current at 40 °C ambient and supports soldering up to 275 °C for 10 s per JESD 22-B106 - enabling reliable integration into cost-sensitive consumer power supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - maximum repetitive reverse voltage the device blocks without breakdown |
| IF(AV) | 6.0 A at TC = 90 °C - continuous DC output current capability with heatsink mounting |
| IFSM | 175 A - surge current handling for one 60 Hz half-cycle, critical for inrush protection |
| VF @ 6.0 A | 1.0 V - forward voltage drop per diode, directly impacting conduction loss and thermal design |
| IR @ 25 °C | 5 μA - low reverse leakage ensures minimal standby power loss in offline supplies |
| RθJA | 20 °C/W - junction-to-ambient thermal resistance under PCB-mount conditions (12 mm × 12 mm pads) |
| TJ max. | +150 °C - maximum operating junction temperature, defining thermal derating envelope |
Pinout & Package
Package: GBU case style - molded plastic housing with matte tin-plated leads, UL 94 V-0 rated, dimensions 22.3 mm × 18.8 mm × 7.9 mm (L × W × H), polarity marked on body with beveled corner indicating positive output lead.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ~ (AC1) | AC input terminal | One of two AC input connections for full-wave bridge operation |
| ~ (AC2) | AC input terminal | Second AC input connection; symmetrical with AC1 for bidirectional line input |
| + | DC output anode | Positive DC output node; connects to bulk capacitor or regulator input |
| – | DC output cathode | Negative DC output node; common return path for rectified output |
Key Features
| Feature | Design Value |
|---|---|
| UL recognition E54214 | Validates safety compliance for end-equipment certification in North America |
| 1500 VRMS case dielectric strength | Ensures isolation integrity between internal die and external metal heatsink or chassis |
| Halogen-free, RoHS-compliant (M3) | Meets environmental regulations and eliminates corrosive halogen emissions during PCB reflow |
| High surge capability (175 A IFSM) | Withstands repeated cold-start surges in SMPS without degradation |
| Solderable per J-STD-002/JESD 22-B102 | Guarantees reliable wetting and joint formation using standard lead-free assembly processes |
Applications
| Monitor Power Supply | Printer AC/DC Adapter |
|---|---|
Use Scenario: Converts 100–240 VAC mains to unregulated DC for downstream DC/DC conversion in LCD monitor power boards. IC Role / Device Role / Timing Role: Single-phase bridge rectifier providing full-wave AC input conditioning before bulk capacitor filtering. Use Value: 50 V VRRM and 6.0 A IF(AV) support universal input designs with margin for line transients and thermal cycling. | Use Scenario: Rectifies AC input in compact wall-mounted adapters powering inkjet/laser printers. IC Role / Device Role / Timing Role: Primary-side bridge rectifier delivering DC bus voltage to flyback controller ICs. Use Value: Glass passivation and 175 A IFSM ensure reliability during frequent plug-in/out cycles and load surges. |
| Audio Equipment PSU | Home Appliance Control Board |
Use Scenario: Supplies unregulated DC to linear regulators and audio amplifier stages in AV receivers and powered speakers. IC Role / Device Role / Timing Role: Full-wave rectifier in transformer-based linear power supply front-end. Use Value: Low 5 μA IR at 25 °C minimizes no-load losses and improves standby efficiency. | Use Scenario: Provides DC bus for microcontroller and relay driver circuits in washing machines, microwaves, and HVAC controls. IC Role / Device Role / Timing Role: AC/DC interface component converting mains to low-voltage DC rails. Use Value: GBU package's 20 °C/W RθJA enables natural convection cooling without dedicated heatsinks in space-constrained enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GBU6A-E3/51 | Same electrical specs; RoHS-compliant but contains brominated flame retardants (non-halogen-free) | Acceptable where halogen-free requirement is not mandated by end-customer spec | Select GBU6A-E3/51 if legacy compliance (RoHS only) suffices and cost is prioritized |
| GBU6K-M3/51 | Higher 800 V VRRM; otherwise identical package, thermal, and surge ratings | Required for 230 VAC+ systems with high line transients or poor regulation | Choose GBU6K-M3/51 when designing for global mains input with >600 V peak line voltage margin |
Compared with GBU6A-M3/51, GBU6A-E3/51 offers identical performance without halogen-free assurance, while GBU6K-M3/51 provides higher voltage blocking at same footprint - enabling design reuse across input voltage variants without layout change.
Availability
GBU6A-M3/51 is available at Aetrix Electronics and suitable for switching mode power supplies, consumer audio equipment, and home appliance control boards requiring stable component supply and halogen-free compliance.
Supply support for GBU6A-M3/51 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 General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and optoelectronics with emphasis on reliability and industrial-grade performance.
The GBU series was developed for cost-effective, high-surge-capability AC/DC front-ends in consumer and industrial power supplies - balancing thermal robustness, safety certification, and PCB-mount compatibility.
FAQ
What is the maximum junction temperature rating for GBU6A-M3/51?
The GBU6A-M3/51 has a specified operating junction temperature range of –55 °C to +150 °C. This upper limit defines the thermal boundary for safe continuous operation; exceeding +150 °C risks permanent parametric shift or failure. Derating curves in the Vishay datasheet (Document Number 88615) show how average forward current must be reduced as case temperature rises above 90 °C. The GBU6A-M3/51 must be mounted with appropriate copper area or heatsinking to maintain TJ ≤ 150 °C under full load.
Does GBU6A-M3/51 support lead-free soldering processes?
Yes, GBU6A-M3/51 is qualified for lead-free soldering per JESD 22-B106: it withstands immersion at 275 °C for up to 10 seconds. Its matte tin-plated leads meet J-STD-002 and JESD 22-B102 solderability requirements, ensuring reliable wetting and joint integrity during reflow or wave soldering. The M3 suffix confirms halogen-free molding compound, aligning with IPC-1752A material declarations for environmentally compliant manufacturing.
How does the GBU6A-M3/51 differ from GBU6A-E3/51?
The GBU6A-M3/51 and GBU6A-E3/51 share identical electrical specifications, package dimensions, and thermal performance. The sole difference lies in material composition: M3 denotes halogen-free, RoHS-compliant construction meeting IEC 61249-2-21, while E3 is RoHS-compliant but uses brominated flame retardants. Both meet UL E54214 and have identical 1500 VRMS dielectric strength. Selection depends on end-product environmental compliance mandates.
What is the thermal resistance from junction to ambient (RθJA) for GBU6A-M3/51 in standard PCB mounting?
The GBU6A-M3/51 exhibits a typical RθJA of 20 °C/W when mounted on a PCB with 0.47" × 0.47" (12 mm × 12 mm) copper pads and 0.375" (9.5 mm) lead length, per Vishay datasheet Figure 1 notes. This value assumes free-air convection - no heatsink - and is used to calculate junction temperature rise: TJ = TA + (RθJA × PD). For higher-power operation, case-mounted heatsinking reduces effective thermal resistance significantly, as shown in the derating curve.
Is GBU6A-M3/51 suitable for use in medical-grade power supplies?
GBU6A-M3/51 is not specifically qualified for life-supporting or critical medical applications per Vishay's legal disclaimer (Document 91000). While it carries UL E54214 recognition and meets commercial-grade reliability standards, it lacks explicit qualification to IEC 60601-1 or similar medical safety standards. For medical power supplies, designers must perform full system-level validation including creepage/clearance analysis, fault-tree assessment, and regulatory testing - and consult Vishay's authorized medical-grade product lines if certified components are required.
GBU6A-M3/51 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- 4-SIP, GBU
- Packaging:
- Tray
- Product Status:
- Active
- Diode Type:
- Single Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 50 V
- Current - Average Rectified (Io):
- 3.8 A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 6 A
- Current - Reverse Leakage @ Vr:
- 5 µA @ 50 V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- GBU
GBU6A-M3/51 FAQ
1.How can I place an order for GBU6A-M3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for GBU6A-M3/51 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 GBU6A-M3/51 reliable?
The price and inventory of GBU6A-M3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GBU6A-M3/51 is usually 5 days.
3.What payment methods are accepted for GBU6A-M3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GBU6A-M3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GBU6A-M3/51?
GBU6A-M3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GBU6A-M3/51 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 GBU6A-M3/51?
For technical support, including GBU6A-M3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GBU6A-M3/51 requirements.
6.How does Aetrix verify that GBU6A-M3/51 is sourced from the original manufacturer or authorized distributors?
All GBU6A-M3/51 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 GBU6A-M3/51 meets industry standards.
7.What is the process for return or replacement of GBU6A-M3/51?
All GBU6A-M3/51 units undergo pre-shipment inspection (PSI). If there is an issue with GBU6A-M3/51, 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 GBU6A-M3/51 part is unused and in its original packaging.
Return procedure for GBU6A-M3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
GBU6A-M3/51 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
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
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 …
