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Diodes Incorporated DF02S-T
- Part No.:
- DF02S-T
- Manufacturer:
- Diodes Incorporated
- Category:
- Bridge Rectifiers
- Package:
- 4-SMD, Gull Wing
- Datasheet:
-
DF02S-T.pdf
- Description:
- BRIDGE RECT 1PHASE 200V 1A DF-S
- Quantity:
- Payment:
- Shipping:
Inventory:5,257
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Product details
Overview
DF02S-T from Diodes Incorporated is a 1.0A surface-mount standard recovery bridge rectifier with 200V 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 qualified for automotive applications with IATF 16949 manufacturing and PPAP capability.
For engineers reviewing the DF02S-T datasheet, DF02S-T pinout, DF02S-T application, or DF02S-T equivalent, this device serves as a compact, RoHS-compliant, halogen-free AC/DC front-end rectifier in space-constrained power supplies, LED drivers, and industrial control modules where thermal resistance of 40°C/W and 50A surge tolerance are critical selection criteria.
Technical Context
This bridge rectifier integrates four silicon diodes in a single DF-S molded plastic package with common-cathode and common-anode configuration. Its standard recovery characteristic (non-fast, non-ultrafast) supports 60Hz/50Hz line-frequency rectification with defined I²t fusing rating (10.4 A²s) and capacitance of 25pF per element at 1MHz/4V.
Thermal performance is specified with 40°C/W junction-to-ambient resistance on a 5.0mm² PCB land pattern. Polarity is marked on the package, and solderability complies with MIL-STD-202 Method 208 using tin-finished terminals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum peak reverse voltage the device blocks without breakdown in repetitive operation. |
| IF(AV) | 1.0 A - Average forward rectified current at TA = +40°C, defining continuous DC output capability. |
| VF Max | 1.1 V @ 1.0A - Forward voltage drop per diode element, directly impacting conduction loss and thermal load. |
| IR Max | 10 µA @ 25°C - Reverse leakage current per element, critical for low-power standby and high-impedance bias networks. |
| IFSM | 50 A - Non-repetitive surge current tolerance (8.3ms half-sine), enabling robustness against line transients. |
| RθJA | 40 °C/W - Junction-to-ambient thermal resistance on standard PCB layout, used to calculate max junction temperature. |
| CT | 25 pF @ 1MHz/4V - Total capacitance per diode element, influencing high-frequency noise coupling and EMI filtering design. |
Pinout & Package
Package: DF-S, surface-mount molded plastic (UL 94V-0), 7.4–7.9 mm length × 6.2–6.5 mm width × 1.0–1.2 mm height, 0.38 g weight, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ~AC1 | Input AC terminal 1 | One AC input node of full-wave bridge; connects to live/phase side of transformer secondary or AC line. |
| ~AC2 | Input AC terminal 2 | Second AC input node; completes AC input path for full-wave rectification. |
| +DC | Positive DC output | Common cathode connection delivering rectified positive voltage to filter capacitor or load. |
| –DC | Negative DC output | Common anode connection serving as circuit ground/reference return path for rectified output. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die | Enhances long-term reliability and humidity resistance without requiring hermetic sealing. |
| 50A surge rating | Withstands short-duration line surges (e.g., lightning-induced transients) without failure in AC mains interfaces. |
| UL Recognized (E364304) | Meets safety requirements for end-equipment certification in North America and globally accepted markets. |
| Lead-free & "Green" | Complies with RoHS 3 and contains <900ppm Br, <900ppm Cl, <1000ppm Sb-enabling eco-conscious product compliance. |
| IATF 16949 manufacturing | Supports automotive qualification pathways (AEC-Q101) and change-controlled supply for Tier-1 systems. |
Applications
| AC/DC Power Adapters | Industrial Motor Controls |
|---|---|
Use Scenario: 12V/24V offline switch-mode power supplies for consumer electronics and IoT gateways. IC Role / Device Role / Timing Role: Full-wave bridge rectifier converting 50/60Hz AC input to pulsating DC prior to bulk capacitor filtering and DC-DC conversion. Use Value: Low 1.1V VF minimizes conduction loss at 1A average load, improving efficiency and reducing heatsink requirements. | Use Scenario: Control board power supply in HVAC actuators and PLC I/O modules operating from 24VAC or 120VAC sources. IC Role / Device Role / Timing Role: Input-stage rectifier providing isolated DC rail for microcontroller, relay drivers, and sensor interfaces. Use Value: 50A IFSM withstands motor startup inrush and contactor switching transients without degradation. |
| LED Lighting Drivers | Automotive Body Electronics |
Use Scenario: Constant-current LED driver for commercial downlights powered from 120VAC/230VAC mains. IC Role / Device Role / Timing Role: Primary rectification stage feeding passive or active PFC circuits and downstream buck/boost converters. Use Value: 200V VRRM provides sufficient margin above 170V peak 120VAC and 325V peak 230VAC inputs. | Use Scenario: Auxiliary power supply in automotive door modules, seat controllers, and mirror adjusters. IC Role / Device Role / Timing Role: Rectifier in 12V battery-backed or alternator-fed auxiliary DC supply generating stable 5V/3.3V rails. Use Value: IATF 16949 production and AEC-Q101 readiness ensure supply continuity and traceability for automotive OEM programs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GBU2K (ON Semiconductor) | Same 200V VRRM and 1.0A IF(AV), but larger GBU package (10.5×7.1mm) and higher RθJA (50°C/W). | Requires larger PCB footprint and additional thermal relief; less suitable for ultra-thin adapters. | Select when legacy GBU footprint compatibility is required and thermal margin allows. |
| MB2S (Vishay) | 200V VRRM, 1.0A IF(AV), but faster recovery (trr ≈ 1.5µs vs. standard ~2–4µs), higher VF (1.25V) and lower IFSM (30A). | Better for higher-frequency rectification but sacrifices surge robustness and efficiency at 1A DC. | Select only if reduced switching noise is prioritized over surge immunity and conduction loss. |
Compared with GBU2K and MB2S, DF02S-T offers optimal balance of compact DF-S footprint, lowest VF (1.1V), highest surge rating (50A), and automotive-grade manufacturing-making it preferred for thermally constrained, high-reliability AC/DC front ends.
Availability
DF02S-T is available at Aetrix Electronics and suitable for AC/DC power adapters, industrial motor controls, and LED lighting drivers requiring stable component supply, consistent parametric performance, and RoHS-compliant sourcing.
Supply support for DF02S-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.
The DF-S bridge rectifier series targets cost-sensitive, high-volume power conversion applications demanding reliability, safety certification, and environmental compliance-especially in consumer, industrial, and automotive auxiliary power supplies.
FAQ
What is the maximum ambient temperature for continuous 1.0A operation?
DF02S-T delivers its rated 1.0A average forward current at TA = +40°C. Derating begins above this point; at +85°C ambient, the usable current drops to approximately 0.6A based on the published derating curve (Fig. 1), assuming the standard 5.0mm² copper pad layout and still-air conditions.
Is DF02S-T suitable for use in capacitive-input filter designs?
No-capacitive-input filters impose high peak currents that exceed the device's safe operating area. The datasheet explicitly requires a 20% current derating for capacitive loads. For such topologies, a higher-current bridge (e.g., DF04S-T) or alternative rectification architecture should be used.
Does DF02S-T have AEC-Q101 qualification documentation available?
DF02S-T is manufactured in IATF 16949-certified facilities and supports PPAP; however, it is not individually listed in Diodes' AEC-Q101 qualified parts database. Customers requiring formal AEC-Q101 certification must request specific qualification testing through Diodes' automotive support team.
How is polarity marked on the DF-S package?
Polarity is marked on the top surface of the DF-S package: a white bar identifies the ~AC1 terminal, while the +DC output is indicated by a "+" symbol adjacent to the corresponding lead. The –DC terminal is unmarked but located diagonally opposite +DC; ~AC2 is the remaining unmarked terminal.
DF02S-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):
- 200 V
- Current - Average Rectified (Io):
- 1 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 1 A
- Current - Reverse Leakage @ Vr:
- 10 µA @ 200 V
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DF-S
DF02S-T FAQ
1.How can I place an order for DF02S-T through Aetrix?
Please submit a Request for Quotation (RFQ) for DF02S-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 DF02S-T reliable?
The price and inventory of DF02S-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF02S-T is usually 5 days.
3.What payment methods are accepted for DF02S-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF02S-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF02S-T?
DF02S-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF02S-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 DF02S-T?
For technical support, including DF02S-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF02S-T requirements.
6.How does Aetrix verify that DF02S-T is sourced from the original manufacturer or authorized distributors?
All DF02S-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 DF02S-T meets industry standards.
7.What is the process for return or replacement of DF02S-T?
All DF02S-T units undergo pre-shipment inspection (PSI). If there is an issue with DF02S-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 DF02S-T part is unused and in its original packaging.
Return procedure for DF02S-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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