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Diodes Incorporated DF1501S-T
- Part No.:
- DF1501S-T
- Manufacturer:
- Diodes Incorporated
- Category:
- Bridge Rectifiers
- Package:
- 4-SMD, Gull Wing
- Datasheet:
-
DF1501S-T.pdf
- Description:
- BRIDGE RECT 1P 100V 1.5A DF-S
- Quantity:
- Payment:
- Shipping:
Inventory:6,989
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Product details
Overview
DF1501S-T from Diodes Incorporated is a surface-mount standard recovery bridge rectifier with 100 V peak repetitive reverse voltage (VRRM), 1.5 A average forward rectified current (IO), and 1.1 V maximum forward voltage drop (VFM) at 1.5 A per element. It features glass passivated die construction, 50 A non-repetitive peak forward surge capability, and is UL Recognized (E364304) for use in AC/DC power supplies and industrial control power stages.
For engineers reviewing the DF1501S-T datasheet, DF1501S-T pinout, DF1501S-T application, or DF1501S-T equivalent, key selection criteria include its DF-S package thermal resistance (40 °C/W), low-leakage reverse current (10 µA at 25°C), and compatibility with automated SMT assembly on FR-4 PCBs with defined pad layouts.
Technical Context
This single-phase, full-wave bridge rectifier integrates four silicon diodes in a monolithic DF-S molded plastic package. Its standard recovery characteristics (typical trr not specified but consistent with standard recovery class) support line-frequency (50/60 Hz) operation with resistive or inductive loads; capacitive loads require 20% current derating.
The device operates across –55°C to +150°C junction temperature range and delivers stable performance under transient surges up to 50 A (8.3 ms half-sine). Thermal resistance of 40 °C/W (junction-to-ambient, measured on 5.0 mm² copper land) enables reliable power dissipation in compact board layouts without forced airflow.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse voltage per diode leg; defines safe AC input voltage ceiling (e.g., ≤70 V RMS). |
| IO | 1.5 A @ TA = +40°C - Continuous DC output current capability under natural convection; derates linearly above 40°C ambient. |
| VFM | 1.1 V @ IF = 1.5 A - Forward voltage per diode element; determines conduction loss (1.65 W total for full-wave bridge at 1.5 A). |
| IFSM | 50 A - Non-repetitive surge rating (8.3 ms); supports inrush current handling in transformer-coupled supplies. |
| IRM | 10 µA @ 25°C - Reverse leakage per element; ensures minimal standby power loss in off-state. |
| RθJA | 40 °C/W - Junction-to-ambient thermal resistance on standard PCB; sets minimum required copper area for thermal management. |
| CT | 25 pF @ 1 MHz, 4 V - Junction capacitance per diode; impacts high-frequency noise coupling and EMI filter design. |
Pinout & Package
Package: DF-S - Surface-mount molded plastic package (UL 94V-0), dimensions 7.4–7.9 mm × 6.2–6.5 mm × 2.4–2.6 mm (L×W×H), weight ≈0.38 g, tin-plated terminals, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC1 | AC Input Terminal 1 | One AC input node of full-wave bridge; connects to transformer secondary or AC line input. |
| AC2 | AC Input Terminal 2 | Second AC input node; completes AC 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 humidity resistance in industrial environments without hermetic sealing. |
| 50 A surge rating | Withstands cold-start inrush currents in transformer-based power supplies without degradation. |
| UL Recognized (E364304) | Meets safety requirements for end-equipment certification in North America without additional component-level testing. |
| Lead-free & RoHS compliant | Enables compliance with EU directives and facilitates Pb-free reflow soldering (J-STD-020 Level 1). |
Applications
| Industrial AC/DC Power Supplies | Consumer Wall Adapters |
|---|---|
Use Scenario: Rectifying 50/60 Hz AC from toroidal or EI-core transformers in DIN-rail mounted PLC power modules. IC Role / Device Role / Timing Role: Full-wave bridge rectifier converting AC to unregulated DC prior to linear regulation or bulk capacitor filtering. Use Value: 1.5 A continuous rating and 50 A surge capacity ensure robust operation during motor controller startup transients. |
Use Scenario: Low-cost offline AC/DC conversion in Class II double-insulated wall plug adapters for audio accessories. IC Role / Device Role / Timing Role: Primary rectification stage delivering 12 V DC after smoothing and regulation. Use Value: DF-S package footprint and RoHS compliance support automated assembly and global market access. |
| LED Driver Input Stages | Appliance Control Board Power |
Use Scenario: Input rectification in constant-current LED drivers for commercial lighting fixtures operating from 120 V AC mains. IC Role / Device Role / Timing Role: Bridge rectifier feeding bulk capacitor and PFC or buck converter stage. Use Value: 100 V VRRM provides sufficient margin over 120 V AC peak (170 V), while 1.1 V VFM limits heat generation in sealed enclosures. |
Use Scenario: Power supply front-end for microcontroller-based washing machine control boards exposed to humid, vibration-prone environments. IC Role / Device Role / Timing Role: Main AC-to-DC conversion block powering 5 V/3.3 V regulators and relay drivers. Use Value: Glass passivation and –55°C to +150°C operating range ensure reliability across condensation cycles and thermal cycling. |
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 100 V VRRM, 1.5 A IO, but GBU package (larger footprint, higher RθJA ≈ 50 °C/W). | Requires larger PCB area and more copper for thermal management; less suitable for space-constrained designs. | Select when legacy GBU layout exists or higher surge margin (60 A IFSM) is prioritized over size. |
| MB10F (Fairchild/ON) | Lower VRRM (100 V same), but MB10F uses MB package (smaller than DF-S); VF slightly higher (1.15 V). | Higher forward loss increases thermal load at full current; may require derating in enclosed spaces. | Choose for cost-sensitive consumer applications where 0.05 V VF increase is acceptable and footprint reduction is critical. |
Compared with GBU4K and MB10F, DF1501S-T offers optimal balance of thermal performance (40 °C/W), compact DF-S footprint, and industry-standard 100 V/1.5 A rating-making it preferred for new industrial and appliance designs requiring SMT scalability and UL recognition.
Availability
DF1501S-T is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, consumer wall adapters, LED driver input stages, and appliance control board power requiring stable component supply and long-term manufacturability.
Supply support for DF1501S-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-reliability power management, signal integrity, and protection solutions for industrial, automotive, and consumer markets.
DF1501S-T belongs to Diodes' DF-S bridge rectifier product line, engineered for surface-mount compatibility, UL recognition, and robust surge handling in cost-sensitive yet reliability-critical AC/DC front-end applications.
FAQ
What is the maximum operating temperature for DF1501S-T?
The DF1501S-T has a specified junction temperature range of –55°C to +150°C. Its thermal resistance (RθJA = 40 °C/W) means that at 1.5 A IO and 25°C ambient, junction temperature rises approximately 60°C above ambient-well within safe limits. Derating curves in the datasheet define usable current vs. ambient temperature.
Is DF1501S-T suitable for use with capacitive loads?
No-capacitive loads require 20% derating of the average forward current (IO) due to high inrush currents. For example, at 100% rated IO (1.5 A), the device must be operated at ≤1.2 A when feeding large bulk capacitors directly. Use inductive or resistive loads is preferred for full-rated performance.
Does DF1501S-T meet automotive qualification standards?
DF1501S-T is not AEC-Q101 qualified. While Diodes offers automotive-grade variants (e.g., DF1501S-Q), this standard version lacks PPAP documentation, IATF 16949 manufacturing evidence, and extended temperature validation beyond the –55°C to +150°C range. It is intended for industrial and consumer applications.
How does the DF-S package compare to GBPC or KBU packages?
The DF-S package is smaller (7.65 × 6.35 mm) and lower-profile than through-hole GBPC or KBU packages, enabling fully automated SMT assembly. Unlike those older packages, DF-S has optimized thermal pad geometry for PCB heat spreading and complies with modern moisture sensitivity (Level 1) and RoHS requirements without lead finish compromises.
DF1501S-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):
- 100 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 @ 100 V
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DF-S
DF1501S-T FAQ
1.How can I place an order for DF1501S-T through Aetrix?
Please submit a Request for Quotation (RFQ) for DF1501S-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 DF1501S-T reliable?
The price and inventory of DF1501S-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF1501S-T is usually 5 days.
3.What payment methods are accepted for DF1501S-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF1501S-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF1501S-T?
DF1501S-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF1501S-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 DF1501S-T?
For technical support, including DF1501S-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF1501S-T requirements.
6.How does Aetrix verify that DF1501S-T is sourced from the original manufacturer or authorized distributors?
All DF1501S-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 DF1501S-T meets industry standards.
7.What is the process for return or replacement of DF1501S-T?
All DF1501S-T units undergo pre-shipment inspection (PSI). If there is an issue with DF1501S-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 DF1501S-T part is unused and in its original packaging.
Return procedure for DF1501S-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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