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Diodes Incorporated DF005S-T
- Part No.:
- DF005S-T
- Manufacturer:
- Diodes Incorporated
- Category:
- Bridge Rectifiers
- Package:
- 4-SMD, Gull Wing
- Datasheet:
-
DF005S-T.pdf
- Description:
- BRIDGE RECT 1PHASE 50V 1A DF-S
- Quantity:
- Payment:
- Shipping:
Inventory:11,434
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Product details
Overview
DF005S-T from Diodes Incorporated is a 1.0A surface-mount standard recovery bridge rectifier with 50V peak repetitive reverse voltage (VRRM), 1.1V maximum forward voltage at 1.0A, and 10µA maximum reverse leakage current at 25°C. It features glass-passivated die construction, UL recognition (E364304), and is rated for 50A non-repetitive surge current - used in AC/DC input stages of compact power supplies, LED drivers, and industrial control modules.
For engineers reviewing the DF005S-T datasheet, DF005S-T pinout, DF005S-T application, or DF005S-T equivalent, this device serves as a low-profile, RoHS-compliant, halogen-free bridge rectifier optimized for space-constrained 50V-rated AC-input systems requiring stable thermal performance and IATF 16949-manufactured reliability.
Technical Context
This single-phase, full-wave bridge rectifier integrates four silicon diodes in a common cathode/anode configuration within a molded DF-S package. Its standard recovery characteristics (trr not specified, but typical for standard recovery bridges) support line-frequency (50/60Hz) operation with minimal switching loss in resistive or inductive loads.
Thermal resistance is 40°C/W junction-to-ambient on a 5.0mm² PCB pad, enabling 1.0A average forward current at +40°C ambient. The device supports capacitive-load derating (−20% current) and exhibits 25pF typical junction capacitance per diode element at 1MHz/4V reverse bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum peak reverse voltage the bridge withstands without breakdown; sets AC input rating limit (e.g., ≤35V RMS). |
| IF(AV) | 1.0 A at TA = +40°C - Continuous DC output current capability under defined PCB thermal conditions. |
| VF Max | 1.1 V @ IF = 1.0A - Total forward drop across two series diodes in conduction path; determines conduction loss (1.1W at 1A). |
| IR Max | 10 µA @ 25°C - Reverse leakage per diode element; impacts standby power and high-impedance sensing integrity. |
| IFSM | 50 A (8.3ms half-sine) - Surge immunity for cold-start inrush or transient overloads without fusing. |
| RθJA | 40 °C/W - Thermal resistance defining temperature rise above ambient per watt dissipated; guides heatsinking requirements. |
| CT | 25 pF per element @ 1MHz - Junction capacitance affecting EMI filtering and high-frequency noise coupling in input stage. |
Pinout & Package
Package: DF-S - Surface-mount molded plastic package (UL 94V-0), 7.4–7.9mm × 6.2–6.5mm footprint, 0.22–0.30mm lead thickness, 10.4mm max overall length, 0.38g weight. Terminals are tin-finished, solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC1 | Input AC Terminal 1 | One AC input node; connects to live/phase side of transformer secondary or AC line. |
| AC2 | Input AC Terminal 2 | Second AC input node; completes full-wave bridge input path with AC1. |
| + (Anode Common) | DC Positive Output | Full-wave rectified positive output; ties internally to anode of two diodes. |
| – (Cathode Common) | DC Negative Output / Ground Reference | Full-wave rectified negative output; ties internally to cathode of two diodes. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die | Enhances long-term reliability and moisture resistance vs. epoxy-passivated alternatives; critical for humid industrial environments. |
| UL Recognized Component (E364304) | Validates safety compliance for end-equipment certification (e.g., IEC 62368-1), reducing qualification effort for OEMs. |
| Lead-free, halogen- and antimony-free "Green" construction | Meets RoHS 3 (2015/863/EU) and automotive change-control requirements; supports sustainability and regulatory traceability. |
| 50A surge rating (8.3ms) | Withstands transformer inrush and lightning-induced transients without degradation; eliminates need for external NTC or fusing in many designs. |
Applications
| AC/DC Power Supply Input Stage | LED Driver Front-End Rectification |
|---|---|
Use Scenario: Converts 12–35V RMS AC from toroidal or EI-core transformers into pulsating DC for downstream filtering and regulation. IC Role / Device Role / Timing Role: Full-wave bridge rectifier providing bipolar-to-unipolar conversion with minimal conduction loss and thermal rise. Use Value: 1.1V VF enables >85% efficiency at 1A load; 40°C/W RθJA allows operation without heatsink on standard FR4 PCBs. |
Use Scenario: Rectifies AC mains-derived or isolated AC signals feeding constant-current LED driver ICs in streetlight or signage modules. IC Role / Device Role / Timing Role: Input-stage bridge delivering ripple-suppressed DC bus to buck/boost controller; handles 50/60Hz line frequency only. Use Value: 50V VRRM matches 35V RMS inputs; 10µA IR ensures negligible standby leakage in always-on lighting controls. |
| Industrial Control Signal Conditioning | Appliance Motor Control Auxiliary Supply |
Use Scenario: Provides isolated DC bias for optocouplers, relays, or sensor interfaces in PLC I/O modules operating from 24VAC control rails. IC Role / Device Role / Timing Role: Low-power bridge supplying regulated 12–24V DC auxiliary rail; operates continuously at partial load. Use Value: Glass passivation prevents corrosion in dusty/moist cabinet environments; UL recognition simplifies panel builder approvals. |
Use Scenario: Generates low-current DC supply for microcontroller and gate driver logic in washing machine or HVAC blower motor inverters. IC Role / Device Role / Timing Role: Mains-connected rectifier feeding linear regulator or buck converter; exposed to repeated thermal cycling. Use Value: −55°C to +150°C operating range accommodates enclosure temperature extremes; 0.38g mass minimizes mechanical stress during vibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GBU4A (ON Semiconductor) | Same DF-S package, 50V VRRM, 1.05V VF @ 1A, 5µA IR @ 25°C - lower leakage but slightly higher VF. | Identical pinout and thermal profile; preferred where ultra-low standby leakage dominates over conduction loss. | Select GBU4A when system standby power budget is <100µW and board layout cannot accommodate larger packages. |
| DB105 (Diotec) | DF-S package, 50V VRRM, 1.1V VF @ 1A, 50µA IR @ 25°C - higher leakage, same surge rating (50A). | Compatible in footprint and mounting; suitable for cost-sensitive consumer applications where leakage is non-critical. | Choose DB105 for high-volume white goods where RoHS compliance is required but AEC-Q200 or UL recognition is not mandated. |
Compared with GBU4A and DB105, DF005S-T delivers balanced performance: UL recognition and 10µA IR make it optimal for certified industrial equipment, while its Diodes' IATF 16949 manufacturing supports automotive-adjacent programs needing rigorous change control.
Availability
DF005S-T is available at Aetrix Electronics and suitable for AC/DC power supplies, LED driver front-ends, and industrial control signal conditioning requiring stable component supply, consistent thermal behavior, and regulatory-compliant sourcing.
Supply support for DF005S-T 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 the Americas.
DF005S-T belongs to Diodes' DF-S bridge rectifier product line, engineered for high-reliability, surface-mount AC/DC conversion in space-constrained industrial, appliance, and lighting applications where UL recognition and green material compliance are mandatory.
FAQ
What is the maximum allowable ambient temperature for continuous 1.0A operation?
DF005S-T delivers 1.0A average forward current only at TA = +40°C, per the datasheet's derating curve. At higher ambient temperatures, current must be reduced linearly - e.g., to 0.7A at +80°C - based on the 40°C/W thermal resistance and 150°C maximum junction temperature. Operation beyond these limits risks premature thermal failure.
Is DF005S-T suitable for use with capacitive input filters?
Yes, but with mandatory 20% current derating per the datasheet. Capacitive-input filters cause high peak currents and increased RMS heating; thus, the 1.0A rating drops to 0.8A when feeding a bulk capacitor directly after the bridge. Layout must minimize trace inductance to avoid voltage overshoot during charging peaks.
Does DF005S-T meet AEC-Q200 for automotive use?
No - DF005S-T is not AEC-Q200 qualified. While manufactured in IATF 16949-certified facilities and capable of automotive-grade change control upon request, it lacks formal stress testing per AEC-Q200. For automotive applications, Diodes recommends contacting their automotive team for PPAP-capable variants like the AEC-Q200-qualified DF005S-AQ.
How does the DF-S package compare thermally to SMB or SMD bridge packages?
The DF-S package offers 40°C/W RθJA - significantly better than SMB-based bridges (~60°C/W) due to its larger copper area and optimized internal leadframe. This enables higher power density without external heatsinking. However, it requires more PCB area (7.9mm × 6.5mm) than SMB (4.6mm × 3.6mm), trading footprint for thermal performance.
DF005S-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 4-SMD, Gull Wing
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Type:
- Single Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 50 V
- Current - Average Rectified (Io):
- 1 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 1 A
- Current - Reverse Leakage @ Vr:
- 10 µA @ 50 V
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DF-S
DF005S-T FAQ
1.How can I place an order for DF005S-T through Aetrix?
Please submit a Request for Quotation (RFQ) for DF005S-T 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 DF005S-T reliable?
The price and inventory of DF005S-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF005S-T is usually 5 days.
3.What payment methods are accepted for DF005S-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF005S-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF005S-T?
DF005S-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF005S-T 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 DF005S-T?
For technical support, including DF005S-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF005S-T requirements.
6.How does Aetrix verify that DF005S-T is sourced from the original manufacturer or authorized distributors?
All DF005S-T 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 DF005S-T meets industry standards.
7.What is the process for return or replacement of DF005S-T?
All DF005S-T units undergo pre-shipment inspection (PSI). If there is an issue with DF005S-T, 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 DF005S-T part is unused and in its original packaging.
Return procedure for DF005S-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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