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Diodes Incorporated PB64
- Part No.:
- PB64
- Manufacturer:
- Diodes Incorporated
- Category:
- Bridge Rectifiers
- Package:
- 4-Square, PB-6
- Datasheet:
-
PB64.pdf
- Description:
- BRIDGE RECT 1PHASE 400V 6A PB-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,210
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Product details
Overview
PB64 from Diodes Incorporated is a 6.0A single-phase bridge rectifier in PB-6 plastic package, rated for 400V maximum recurrent peak reverse voltage (VRRM), 1.1V forward voltage drop at 3.0A DC per leg, and 125A peak surge current (IFSM), used in AC/DC power supplies for industrial control panels.
For engineers reviewing the PB64 datasheet, PB64 pinout, PB64 application, or PB64 equivalent, key selection criteria include VRRM rating for input voltage margin, thermal resistance (RθJC = 8°C/W) for heatsink sizing, I(AV) derating above 50°C heatsink temperature, and RoHS-compliant lead-free finish for production compliance.
Technical Context
The PB64 integrates four silicon diodes in a single-phase full-wave bridge configuration with marked polarity symbols on the body. It operates across -65°C to +150°C junction temperature range and supports resistive or inductive loads at 60Hz line frequency.
Its 400V VRRM rating enables use with 280V RMS AC input (VRSM = 280V), and its 6.0A average forward output current is specified at 50°C heatsink temperature, requiring thermal derating per Figure 1 in the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum repetitive reverse voltage each diode leg withstands without breakdown |
| I(AV) | 6.0 A - Average DC output current at 50°C heatsink temperature, not case or ambient |
| IFSM | 125 A - Peak non-repetitive surge current for 8.3ms half-sine, critical for inrush limiting |
| VF | 1.1 V - Forward voltage drop per diode leg at 3.0A DC, determines conduction loss and heat generation |
| RθJC | 8 °C/W - Junction-to-case thermal resistance, defines minimum heatsink requirement for thermal management |
| IR | 10 µA - Max reverse leakage per leg at 25°C, impacts standby power in high-impedance circuits |
Pinout & Package
PB64 uses the PB-6 plastic package (15.24 mm × 6.35 mm × 10.8 mm), with tinned leads solderable per MIL-STD-202 Method 208 and U/L 94V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC1 | AC Input Terminal 1 | One of two alternating current input connections; tied internally to anode of D1 and cathode of D2 |
| AC2 | AC Input Terminal 2 | Second AC input; tied internally to cathode of D1 and anode of D2 |
| + | Positive DC Output | Full-wave rectified positive output node; common cathode connection of D1 and D3 |
| - | Negative DC Output | Full-wave rectified negative output node; common anode connection of D2 and D4 |
Key Features
| Feature | Design Value |
|---|---|
| Surge overload rating | 125A peak for 8.3ms - Enables robust operation during AC line transients and motor startup surges |
| Low VF per leg | 1.1V at 3.0A - Reduces conduction losses by ~15% vs. typical 1.3V bridges, lowering heatsink size |
| UL 94V-0 plastic case | Flame-retardant housing - Meets safety standards for enclosed industrial power supplies |
| RoHS-compliant finish | Lead-free terminations (date code 0514+) - Supports global environmental compliance without solderability compromise |
Applications
| Industrial AC/DC Power Supply | Motor Drive Front-End Rectification |
|---|---|
Use Scenario: Converts 230VAC mains to unregulated DC bus in PLC power modules. IC Role / Device Role / Timing Role: Full-wave bridge rectifier providing isolated DC output with minimal ripple before bulk capacitor filtering. Use Value: 400V VRRM provides 43% margin over 280V RMS input, ensuring reliability under brownout and surge conditions. | Use Scenario: Rectifies single-phase AC input in 0.5–1.5kW variable-frequency drive auxiliary power stage. IC Role / Device Role / Timing Role: Primary AC-to-DC conversion element feeding control logic and gate driver rails. Use Value: 125A IFSM withstands repeated motor startup currents without degradation, extending service life. |
| Embedded System Mains Adapter | Test Equipment Power Input Stage |
Use Scenario: Powers 24VDC embedded controllers in factory automation sensors. IC Role / Device Role / Timing Role: Input rectifier in compact off-line SMPS with integrated PFC or simple capacitive-input design. Use Value: 6.0A I(AV) at 50°C heatsink supports continuous 15W output with conservative thermal design. | Use Scenario: Supplies unregulated DC to linear regulators in benchtop multimeters and signal generators. IC Role / Device Role / Timing Role: Mains-side rectification with low IR (10µA) minimizing standby current in battery-backed instruments. Use Value: 8°C/W RθJC allows direct mounting to metal chassis for passive cooling, eliminating fan noise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GBU4K (ON Semiconductor) | Same PB-6 package, 400V VRRM, but 4.0A I(AV) and higher VF (1.1V @ 2.0A) | Lower current rating limits use to ≤10W outputs; requires larger heatsink for same power | Select when footprint compatibility is critical but lower power density is acceptable |
| KBP204 (Comchip) | Same 400V/6.0A rating, but 10°C/W RθJC and no UL 94V-0 marking | Higher thermal resistance increases heatsink cost; lacks safety certification for enclosed systems | Prefer for cost-sensitive open-frame designs where safety agency approval is not required |
Compared with GBK404 and KBP204, PB64 offers superior thermal performance (8°C/W vs. ≥10°C/W), certified flame-retardant housing, and verified 125A surge capability-making it optimal for thermally constrained, safety-certified industrial power supplies.
Availability
PB64 is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, motor drive front-end rectification, and embedded system mains adapters requiring stable component supply and long-term lifecycle support.
Supply support for PB64 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 and manufacturing operations across Asia and the Americas.
The PB-series bridge rectifiers target cost-effective, high-reliability AC/DC conversion in industrial, appliance, and infrastructure equipment where surge resilience and thermal efficiency are critical.
FAQ
What is the maximum heatsink temperature at which PB64 delivers full 6.0A output current?
PB64 delivers its rated 6.0A average forward output current only when the heatsink temperature (THS) is maintained at 50°C or lower. Above this temperature, current must be linearly derated per Figure 1 in DS21310 Rev. 6 - for example, to 4.0A at 75°C heatsink temperature. This specification assumes proper mechanical mounting and thermal interface material.
Does PB64 require external snubber circuitry for inductive load switching?
PB64 does not integrate snubber circuitry and relies on external RC networks when switching highly inductive loads like solenoids or relay coils. Its 400V VRRM rating provides margin against inductive kickback, but transient suppression remains the system designer's responsibility per application stress levels and IEC 61000-4-4 immunity requirements.
Can PB64 be used in place of PB62 in an existing design?
Yes, PB64 is a direct upgrade from PB62 (200V VRRM) with identical PB-6 package, pinout, and thermal characteristics - only VRRM and VRSM ratings differ. No layout or thermal changes are needed, but verify that the higher 400V rating aligns with input voltage requirements and does not introduce unnecessary cost or derating penalties.
Is PB64 compliant with REACH and conflict minerals reporting requirements?
Yes, PB64 meets EU REACH SVHC requirements and Diodes Incorporated's Conflict Minerals Policy. The device contains no substances of very high concern above threshold concentrations, and its supply chain adheres to the Responsible Minerals Initiative (RMI) standards, with full documentation available via Diodes' compliance portal using part number PB64.
PB64 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 4-Square, PB-6
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Diode Type:
- Single Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 400 V
- Current - Average Rectified (Io):
- 6 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 3 A
- Current - Reverse Leakage @ Vr:
- 10 µA @ 400 V
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- PB-6
PB64 FAQ
1.How can I place an order for PB64 through Aetrix?
Please submit a Request for Quotation (RFQ) for PB64 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 PB64 reliable?
The price and inventory of PB64 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PB64 is usually 5 days.
3.What payment methods are accepted for PB64?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PB64 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PB64?
PB64 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PB64 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 PB64?
For technical support, including PB64 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PB64 requirements.
6.How does Aetrix verify that PB64 is sourced from the original manufacturer or authorized distributors?
All PB64 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 PB64 meets industry standards.
7.What is the process for return or replacement of PB64?
All PB64 units undergo pre-shipment inspection (PSI). If there is an issue with PB64, 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 PB64 part is unused and in its original packaging.
Return procedure for PB64:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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