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Diodes Incorporated GBU1004
- Part No.:
- GBU1004
- Manufacturer:
- Diodes Incorporated
- Category:
- Bridge Rectifiers
- Package:
- 4-SIP, GBU
- Datasheet:
-
GBU1004.pdf
- Description:
- BRIDGE RECT 1PHASE 400V 10A GBU
- Quantity:
- Payment:
- Shipping:
Inventory:278
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Product details
Overview
GBU1004 from Diodes Incorporated is a 10A, 400V standard recovery bridge rectifier in GBU package, with VF ≤ 1.0 V at 5A, IR ≤ 5 µA at 25°C, and 1500VRMS dielectric strength. It delivers robust AC-to-DC conversion for industrial power supplies, motor control front-ends, and HVAC blower circuits.
For engineers reviewing the GBU1004 datasheet, GBU1004 pinout, GBU1004 application, or GBU1004 equivalent, key selection criteria include peak reverse voltage rating (400 V), average forward current (10 A at TC = 100°C), surge capability (220 A peak), thermal resistance (2.2°C/W), and UL recognition (E95060).
Technical Context
The GBU1004 integrates four standard-recovery silicon diodes in a single-phase full-wave bridge configuration, optimized for line-frequency (50/60 Hz) rectification under resistive or inductive loads. Its glass-passivated die construction ensures stable leakage performance and high reliability across -55°C to +150°C junction temperature range.
With a typical junction capacitance of 60 pF at 1 MHz and 4 V reverse bias, it exhibits low high-frequency noise coupling-critical for EMI-sensitive power entry stages. The device requires derating to 8 A for capacitive loads per datasheet guidance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum repetitive reverse voltage before breakdown; defines safe AC input voltage ceiling (e.g., 280 VAC RMS) |
| IF(AV) | 10 A @ TC = 100°C - Continuous DC output current capability when mounted on 100 mm × 100 mm copper heatsink |
| VF | ≤ 1.0 V @ IF = 5 A - Forward conduction loss directly impacts thermal rise and efficiency in 12–48 V DC bus designs |
| IR | ≤ 5 µA @ VR = 400 V, TA = 25°C - Low leakage preserves hold-up time and reduces standby power in offline SMPS inputs |
| IFSM | 220 A (8.3 ms half-sine) - Withstands inrush surges from cold-started transformers or large bulk capacitors |
| RθJC | 2.2°C/W - Enables precise thermal design: ~22°C rise at 10 A conduction with ideal heatsinking |
| VB | 400 V (min) - Confirmed breakdown voltage margin ensures long-term reliability under transient overvoltage conditions |
Pinout & Package
Package: GBU - 4-pin through-hole plastic package (UL 94V-0), designed for #6 screw mounting with max 5.0 in-lb torque. Weight: 3.7 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ~ (AC1) | AC Input Terminal 1 | One leg of AC input; connects to primary winding or mains phase in full-wave bridge topology |
| ~ (AC2) | AC Input Terminal 2 | Second leg of AC input; completes differential AC feed into bridge |
| + (DC+) | Positive DC Output | Anode common point of two series-connected diodes; delivers rectified positive rail |
| – (DC–) | Negative DC Output | Cathode common point of two series-connected diodes; serves as return path and ground reference |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die | Eliminates surface contamination sensitivity, enabling stable IR performance over 15-year field life in humid environments |
| 1500 VRMS case isolation | Meets reinforced insulation requirements for Class I appliances and industrial equipment safety standards |
| 220 A non-repetitive surge rating | Supports direct connection to 120/240 VAC mains without external NTC thermistor or inrush limiters |
| UL Recognized (E95060) | Validates flammability, creepage, and construction compliance for global end-equipment certification |
| Lead-free & RoHS 3 compliant | Enables export to EU, UK, Turkey, South Korea, and other RoHS-regulated markets without requalification |
Applications
| Industrial Power Supply Input Stage | AC Motor Control Front-End |
|---|---|
Use Scenario: Rectifying 230 VAC mains in DIN-rail-mounted 24 V/10 A industrial PSUs feeding PLC I/O modules. IC Role / Device Role / Timing Role: Full-wave bridge rectifier converting AC line to unregulated DC bus prior to buck regulation. Use Value: 400 V VRRM provides 1.7× margin over 230 VAC peak (325 V), ensuring immunity to line surges up to ±1 kV. | Use Scenario: Converting single-phase 120/240 VAC to DC for brushless DC motor driver inverters in HVAC blowers. IC Role / Device Role / Timing Role: Primary AC/DC interface delivering DC link voltage to six-pack IGBT gate drivers. Use Value: 220 A IFSM withstands startup inrush from motor windings and filter capacitors without degradation. |
| LED Streetlight Driver Input | Commercial Appliance Power Entry |
Use Scenario: Off-line LED driver input stage in IP66-rated outdoor luminaires operating from 230 VAC grid. IC Role / Device Role / Timing Role: Mains-side rectification feeding PFC controller and flyback secondary. Use Value: 5 µA IR at 25°C minimizes no-load power loss, supporting < 0.5 W standby per EN 62301 Class D. | Use Scenario: Power conversion in commercial coffee makers with heating element and microcontroller control. IC Role / Device Role / Timing Role: Isolated AC/DC conversion block powering 5 V logic and 12 V solenoid drivers. Use Value: UL E95060 recognition simplifies end-product safety approval under UL 1026 and IEC 60335-1. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GBU10J (ON Semiconductor) | Same 400 V VRRM, 10 A IF(AV), but VF = 1.1 V (max) and IR = 10 µA (max) at 25°C | Slightly higher conduction loss and leakage; acceptable where thermal margin > 15°C exists | Select when sourcing diversification is required and minor efficiency trade-off is acceptable |
| KBU1004 (Shindengen) | Identical VRRM, IF(AV), and IFSM ratings; RθJC = 2.5°C/W (vs. 2.2°C/W); UL file #E149230 | Higher thermal resistance demands larger heatsink area for same power dissipation | Prefer for legacy designs qualified to Shindengen's qualification data or regional supply chain alignment |
Compared with GBU1004, GBU10J trades lower cost for slightly reduced efficiency and leakage control, while KBU1004 maintains functional equivalence but requires thermal redesign due to +0.3°C/W junction-to-case resistance.
Availability
GBU1004 is available at Aetrix Electronics and suitable for industrial power supplies, AC motor drives, LED streetlight drivers, and commercial appliance power entry requiring stable component supply and long-term lifecycle support.
Supply support for GBU1004 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 GBU series belongs to Diodes' standard recovery bridge rectifier product line, engineered for cost-effective, high-reliability AC/DC conversion in industrial, appliance, and infrastructure applications where switching speed is not critical.
FAQ
What is the maximum allowable case temperature for continuous operation of GBU1004?
The GBU1004 supports continuous operation up to +100°C case temperature, delivering its full 10 A average forward current rating under that condition when mounted on a 100 mm × 100 mm × 1.6 mm copper heatsink. Exceeding this temperature requires linear derating per Figure 1 in DS30052, reaching zero current at +150°C junction temperature.
Can GBU1004 be used in capacitive-input filter configurations without additional protection?
No-datasheet Note 4 explicitly requires 20% current derating for capacitive loads. In such configurations, the GBU1004 must be operated at ≤ 8 A average forward current to avoid thermal runaway caused by high peak charging currents. An NTC thermistor or active inrush limiter is recommended for direct connection to large bulk capacitors.
Is GBU1004 qualified for automotive applications per AEC-Q101?
No-GBU1004 is not AEC-Q101 qualified. While Diodes offers AEC-Q101 variants in other bridge families (e.g., GBU1004-AQ), the standard GBU1004 is intended for industrial and commercial use only. Automotive designs require explicit PPAP documentation and IATF 16949-manufactured lots, which are not part of this part number's qualification scope.
What does the marking "GBU1004" indicate on the device body?
The marking "GBU1004" identifies the device as a GBU-series 10 A, 400 V bridge rectifier. "GBU" denotes the package type and construction; "10" indicates 10 A current rating; "04" encodes the 400 V peak reverse voltage. Date code (e.g., "523") follows separately and indicates year-week of manufacture.
GBU1004 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 4-SIP, GBU
- Packaging:
- Tube
- Product Status:
- Active
- Diode Type:
- Single Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 400 V
- Current - Average Rectified (Io):
- 10 A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 5 A
- Current - Reverse Leakage @ Vr:
- 5 µA @ 400 V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- GBU
GBU1004 FAQ
1.How can I place an order for GBU1004 through Aetrix?
Please submit a Request for Quotation (RFQ) for GBU1004 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 GBU1004 reliable?
The price and inventory of GBU1004 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GBU1004 is usually 5 days.
3.What payment methods are accepted for GBU1004?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GBU1004 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GBU1004?
GBU1004 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GBU1004 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 GBU1004?
For technical support, including GBU1004 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GBU1004 requirements.
6.How does Aetrix verify that GBU1004 is sourced from the original manufacturer or authorized distributors?
All GBU1004 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 GBU1004 meets industry standards.
7.What is the process for return or replacement of GBU1004?
All GBU1004 units undergo pre-shipment inspection (PSI). If there is an issue with GBU1004, 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 GBU1004 part is unused and in its original packaging.
Return procedure for GBU1004:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
GBU1004 Tags
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