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Diodes Incorporated DF02M
- Part No.:
- DF02M
- Manufacturer:
- Diodes Incorporated
- Category:
- Bridge Rectifiers
- Package:
- 4-EDIP (0.300", 7.62mm)
- Datasheet:
-
DF02M.pdf
- Description:
- BRIDGE RECT 1PHASE 200V 1A DFM
- Quantity:
- Payment:
- Shipping:
Inventory:9,992
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Product details
Overview
DF02M from Diodes Incorporated is a 1.0A standard recovery bridge rectifier with 200V maximum repetitive peak reverse voltage (VRRM), 1.1V max forward voltage at 1.0A, 10µA max reverse leakage at 25°C, and 50A non-repetitive surge capability - used in AC/DC power supplies for industrial control modules requiring compact, board-mountable full-wave rectification.
For engineers reviewing the DF02M datasheet, DF02M pinout, DF02M application, or DF02M equivalent, key selection criteria include VRRM margin for line-voltage transients, thermal resistance (40°C/W) under PCB layout constraints, surge rating for inrush handling, RoHS-compliant lead finish, and DF-M package compatibility with automated SMT assembly.
Technical Context
This single-phase bridge rectifier integrates four silicon diodes in a monolithic DF-M molded plastic package, configured as a full-wave Graetz circuit. It operates across -55°C to +150°C junction temperature and delivers stable rectification without external gate control or timing circuitry.
Its glass-passivated die construction ensures robustness against humidity and mechanical stress, while the 25pF typical junction capacitance per element minimizes high-frequency noise coupling in low-speed AC input stages - consistent with standard recovery (non-fast/ultrafast) switching behavior.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Withstands peak reverse voltage up to 200V, suitable for 120VAC mains with safety margin |
| IF(AV) | 1.0 A - Continuous average forward current rating at +40°C ambient on PCB |
| VF(max) | 1.1 V @ 1.0A - Forward drop determines conduction loss and thermal load in linear rectifier stage |
| IR(max) | 10 µA @ 25°C - Low leakage preserves efficiency in standby and low-power modes |
| IFSM | 50 A - Single half-sine surge rating supports capacitor-input filter inrush current |
| RθJA | 40 °C/W - Junction-to-ambient thermal resistance measured on 5.0mm² copper land, guides heatsinking |
| CT(typ) | 25 pF - Junction capacitance per diode limits EMI generation in <1MHz AC line applications |
Pinout & Package
DF02M uses the DF-M surface-mount package: molded plastic body (UL 94V-0), bright tin-plated leads, 0.38g mass, and dimensions A=7.4–7.9mm, B=6.2–6.5mm, H=8.13–8.51mm. Polarity marked on case per industry-standard bridge orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ~AC1 | AC Input Terminal 1 | One side of AC input winding; connects to transformer secondary or line filter output |
| ~AC2 | AC Input Terminal 2 | Other side of AC input winding; completes full-wave bridge input path |
| +DC | Positive DC Output | Anode of internal upper diodes; feeds smoothing capacitor and downstream regulator |
| -DC | Negative DC Output / Ground Reference | Cathode of internal lower diodes; serves as return path and system ground reference |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die | Enhances moisture resistance and long-term reliability in humid industrial environments |
| 50A surge rating | Supports repeated cold-start inrush into bulk capacitors without degradation |
| UL Recognized Component | E364304 listing confirms compliance for end-equipment safety certification |
| Lead-free & RoHS 3 compliant | Meets EU Directive 2015/863/EU; compatible with Pb-free reflow profiles |
Applications
| Industrial Power Supply | Appliance Control Board |
|---|---|
Use Scenario: AC/DC conversion in programmable logic controller (PLC) power section with 120VAC input. IC Role / Device Role / Timing Role: Full-wave bridge rectifier converting transformer-isolated AC to unregulated DC bus. Use Value: 200V VRRM provides 2× safety margin over 120VAC peak (170V), reducing risk of reverse breakdown during line surges. | Use Scenario: Mains-powered washing machine mainboard supplying 12V logic rail. IC Role / Device Role / Timing Role: Primary rectification stage feeding capacitor-input filter and linear regulator. Use Value: 1.1V VF at 1.0A limits conduction loss to ~1.1W, enabling operation without heatsink on standard FR-4 PCB. |
| LED Driver Auxiliary Supply | IoT Gateway Power Input |
Use Scenario: Isolated auxiliary supply for constant-current LED driver IC biasing. IC Role / Device Role / Timing Role: Rectifies low-power AC signal from auxiliary winding of flyback transformer. Use Value: 25pF junction capacitance minimizes high-frequency coupling into sensitive analog feedback paths. | Use Scenario: Compact AC adapter input stage in battery-backed smart home gateway. IC Role / Device Role / Timing Role: Mains rectification before buck converter and battery charge management. Use Value: DF-M footprint enables high-density layout; UL recognition simplifies regional safety approvals. |
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, 1.0A IF, but GBU package (larger, through-hole); VF = 1.05V typ | Requires PCB hole drilling and wave soldering; unsuitable for pure SMT lines | Select if legacy through-hole assembly is mandated or thermal mass requirement exceeds DF-M capability |
| MB2S (Vishay) | Same DF-M package, 200V VRRM, but 0.8A IF rating and 1.2V VF max at 0.8A | Limited to sub-1A continuous loads; higher conduction loss at rated current | Choose only for cost-sensitive, low-duty-cycle applications where 0.8A derating is acceptable |
Compared with GBU2K and MB2S, DF02M uniquely balances SMT compatibility, 1.0A continuous rating, and 200V standoff in the compact DF-M outline - making it optimal for space-constrained, fully automated industrial and appliance designs requiring verified surge resilience.
Availability
DF02M is available at Aetrix Electronics and suitable for industrial power supplies, appliance control boards, LED driver auxiliary circuits, and IoT gateway power inputs requiring stable component supply and RoHS-compliant manufacturing.
Supply support for DF02M 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, specializing in high-reliability power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.
The DF-series bridge rectifiers are designed specifically for cost-effective, board-level AC/DC conversion in safety-certified equipment - emphasizing rugged packaging, surge resilience, and regulatory compliance (UL, RoHS, IATF 16949).
FAQ
What is the maximum operating temperature for DF02M?
DF02M has a specified junction operating temperature range of -55°C to +150°C. Its thermal resistance is 40°C/W (junction-to-ambient, measured on 5.0mm² copper land), so at 1.0A and 1.1V drop (1.1W dissipation), junction temperature rise is ~44°C above ambient - allowing reliable operation up to +106°C ambient in typical layouts.
Is DF02M suitable for automotive applications?
DF02M is not AEC-Q101 qualified and is not intended for automotive use. While it meets industrial temperature and reliability requirements, Diodes Incorporated explicitly states that automotive-grade parts require PPAP capability, AEC-Q101 qualification, and IATF 16949 manufacturing - none of which apply to DF02M per its datasheet and ordering information.
How does DF02M differ from DF01M or DF04M?
DF02M differs solely in VRRM rating: DF01M is 100V, DF02M is 200V, DF04M is 400V. All share identical IF = 1.0A, VF ≤ 1.1V, IFSM = 50A, DF-M package, and thermal characteristics. Selection depends strictly on required reverse voltage margin relative to AC input peak voltage.
Can DF02M be used in place of a discrete diode bridge?
Yes - DF02M integrates four diodes in standard bridge configuration (~AC1, ~AC2, +DC, -DC), eliminating layout complexity and solder joint count versus discrete solutions. Its glass-passivated die and UL recognition provide higher reliability than hand-assembled bridges, especially in high-humidity or vibration-prone environments.
DF02M Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 4-EDIP (0.300", 7.62mm)
- Packaging:
- Tube
- 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:
- Through Hole
- Supplier Device Package:
- DFM
DF02M FAQ
1.How can I place an order for DF02M through Aetrix?
Please submit a Request for Quotation (RFQ) for DF02M 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 DF02M reliable?
The price and inventory of DF02M are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF02M is usually 5 days.
3.What payment methods are accepted for DF02M?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF02M transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF02M?
DF02M orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF02M 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 DF02M?
For technical support, including DF02M datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF02M requirements.
6.How does Aetrix verify that DF02M is sourced from the original manufacturer or authorized distributors?
All DF02M 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 DF02M meets industry standards.
7.What is the process for return or replacement of DF02M?
All DF02M units undergo pre-shipment inspection (PSI). If there is an issue with DF02M, 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 DF02M part is unused and in its original packaging.
Return procedure for DF02M:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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