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Diodes Incorporated DF1502S-T
- Part No.:
- DF1502S-T
- Manufacturer:
- Diodes Incorporated
- Category:
- Bridge Rectifiers
- Package:
- 4-SMD, Gull Wing
- Datasheet:
-
DF1502S-T.pdf
- Description:
- BRIDGE RECT 1P 200V 1.5A DF-S
- Quantity:
- Payment:
- Shipping:
Inventory:16,946
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Product details
Overview
DF1502S-T from Diodes Incorporated is a surface-mount standard recovery bridge rectifier with 200 V peak repetitive reverse voltage (VRRM), 1.5 A average forward current (IO), and 1.1 V maximum forward voltage (VFM) per element. It features glass-passivated die construction, 50 A non-repetitive surge capability, and is UL Recognized (E364304) for use in AC/DC power supplies and industrial control power stages.
For engineers reviewing the DF1502S-T datasheet, DF1502S-T pinout, DF1502S-T application, or DF1502S-T equivalent, key selection criteria include its 200 V blocking rating, thermal resistance of 40 °C/W, 25 pF typical junction capacitance, and compatibility with automated SMT assembly on FR-4 PCBs with defined land patterns.
Technical Context
This single-phase, full-wave bridge rectifier integrates four silicon diodes in a monolithic DF-S package. Its standard recovery characteristic (trr not specified, but consistent with standard recovery diodes) supports line-frequency (50/60 Hz) rectification without requiring snubbers in most resistive or inductive loads.
Designed for surface-mount reliability, it delivers 1.5 A continuous output at +40°C ambient with derating to zero at +150°C junction temperature. The 50 A IFSM rating enables robust handling of inrush currents during cold-start conditions in power adapters and motor drive front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum reverse voltage the device blocks continuously without breakdown. |
| IO | 1.5 A @ TA = +40°C - Continuous DC output current capability under standard board-mount thermal conditions. |
| VFM | 1.1 V @ IF = 1.5 A - Forward conduction loss per diode element, directly impacting power dissipation and efficiency. |
| IFSM | 50 A (8.3 ms half-sine) - Surge withstand capacity for startup transients and short-duration overloads. |
| IRM | 10 µA @ 200 V, +25°C - Reverse leakage level affecting standby power and high-impedance circuit integrity. |
| RθJA | 40 °C/W - Junction-to-ambient thermal resistance on standard 5.0 mm² copper pad, defining heatsinking requirements. |
| CT | 25 pF @ 1 MHz, 4 V - Junction capacitance influencing EMI filtering design and high-frequency switching behavior. |
Pinout & Package
Package: DF-S - Surface-mount molded plastic package (UL 94V-0), 7.4–7.9 mm × 6.2–6.5 mm footprint, 8.13–8.51 mm length, 1.0–1.2 mm height, with tin-plated leads and polarity marking on case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC1 | Input AC Terminal 1 | One AC input node of full-wave bridge; connects to transformer secondary or AC line input. |
| AC2 | Input AC Terminal 2 | Second AC input node; completes AC input path for full-wave rectification. |
| + (Anode Output) | Positive DC Output | Common anode connection of two series diodes; delivers rectified positive rail. |
| – (Cathode Output) | Negative DC Output | Common cathode connection of two series diodes; serves as return/ground reference. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die | Enhances long-term reliability and moisture resistance in humid or thermally cycled environments. |
| 50 A surge rating | Supports repeated cold-start events in power supplies without degradation or failure. |
| UL Recognized (E364304) | Validates safety compliance for end-equipment certification in North America. |
| Lead-free & RoHS compliant | Meets global environmental regulations and enables Pb-free reflow soldering processes. |
| Moisture Sensitivity Level 1 | Eliminates bake requirements prior to SMT assembly, reducing manufacturing overhead. |
Applications
| AC/DC Power Adapters | Industrial Motor Control Power Stages |
|---|---|
Use Scenario: Converting 50/60 Hz AC mains or transformer output to unregulated DC for downstream regulation in wall adapters and open-frame PSUs. IC Role / Device Role / Timing Role: Full-wave bridge rectifier providing isolated, low-loss DC bus generation. Use Value: 1.1 V VFM minimizes conduction loss at 1.5 A, improving light-load efficiency and reducing thermal stress on PCB layout. | Use Scenario: Rectifying AC supply feeding DC link capacitors in variable-frequency drives and PLC power modules. IC Role / Device Role / Timing Role: Input-stage bridge enabling stable DC bus formation before IGBT gate driving and PWM inversion. Use Value: 50 A IFSM withstands motor inrush surges, while 200 V VRRM accommodates 120 VAC systems with margin. |
| LED Driver Input Stages | Appliance Power Supplies |
Use Scenario: Providing bulk DC for constant-current LED drivers in commercial lighting fixtures operating from 120 VAC. IC Role / Device Role / Timing Role: Primary rectification stage converting AC input to high-voltage DC bus before buck or flyback conversion. Use Value: Low 25 pF junction capacitance reduces EMI generation during commutation, easing EMC filter design. | Use Scenario: Power conversion in white goods (refrigerators, washing machines) where reliability across temperature extremes is critical. IC Role / Device Role / Timing Role: Mains-input bridge rectifier delivering DC to SMPS controllers and auxiliary bias rails. Use Value: –55°C to +150°C operating range ensures functionality in sealed, high-temp enclosures without derating. |
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 200 V VRRM and 1.5 A IO, but GBU package (larger, through-hole compatible); RθJA ≈ 50 °C/W. | Requires through-hole or mixed-technology assembly; less suitable for fully SMT production. | Select when legacy board reuse or manual repairability is prioritized over footprint density. |
| MB10F (Vishay) | 200 V VRRM, 1.0 A IO, smaller MB package; lower surge rating (30 A IFSM). | Limited to lower-power applications; insufficient for sustained 1.5 A loads or high-inrush scenarios. | Choose only if system current demand is ≤1.0 A and surge margin is verified below 30 A. |
Compared with GBU2K and MB10F, DF1502S-T offers optimal SMT integration, superior thermal performance (40 °C/W), and higher surge resilience-making it preferred for new 1.5 A, space-constrained, high-reliability AC/DC designs.
Availability
DF1502S-T is available at Aetrix Electronics and suitable for AC/DC power adapters, industrial motor control power stages, and LED driver input stages requiring stable component supply and full RoHS compliance.
Supply support for DF1502S-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, specializing in high-efficiency power management, signal integrity, and protection solutions.
The DF-series bridge rectifiers are engineered for cost-effective, high-yield SMT deployment in mainstream AC/DC conversion, emphasizing thermal robustness, surge immunity, and regulatory compliance for industrial and consumer power systems.
FAQ
What is the maximum junction temperature for DF1502S-T?
The DF1502S-T has a rated junction temperature range of –55°C to +150°C. Operation above +150°C risks permanent parametric shift or catastrophic failure. Derating curves in DS17002 show usable current drops to zero at +150°C ambient under standard mounting conditions.
Is DF1502S-T qualified for automotive applications?
No-DF1502S-T is not AEC-Q101 qualified. While Diodes offers automotive-grade variants (e.g., DF1502S-Q), this standard version lacks PPAP documentation, IATF 16949 traceability, and extended qualification testing required for automotive use.
Can DF1502S-T replace DF1501S in a design?
Yes-DF1502S-T (200 V VRRM) can safely replace DF1501S (100 V VRRM) where higher reverse voltage margin is needed. No layout change is required since both share identical DF-S package, pinout, and thermal characteristics.
What is the recommended PCB pad layout for DF1502S-T?
Diodes specifies a land pattern with 5.0 mm² copper area per terminal for optimal thermal performance. Exact dimensions are published in the DF-S package outline document (available at diodes.com/package-outlines.html), including solder mask clearance and stencil aperture guidance for 0.15 mm thickness.
DF1502S-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):
- 1.5 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 1.5 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
DF1502S-T FAQ
1.How can I place an order for DF1502S-T through Aetrix?
Please submit a Request for Quotation (RFQ) for DF1502S-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 DF1502S-T reliable?
The price and inventory of DF1502S-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF1502S-T is usually 5 days.
3.What payment methods are accepted for DF1502S-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF1502S-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF1502S-T?
DF1502S-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF1502S-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 DF1502S-T?
For technical support, including DF1502S-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF1502S-T requirements.
6.How does Aetrix verify that DF1502S-T is sourced from the original manufacturer or authorized distributors?
All DF1502S-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 DF1502S-T meets industry standards.
7.What is the process for return or replacement of DF1502S-T?
All DF1502S-T units undergo pre-shipment inspection (PSI). If there is an issue with DF1502S-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 DF1502S-T part is unused and in its original packaging.
Return procedure for DF1502S-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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