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Vishay General Semiconductor - Diodes Division DFL1502S-E3/77
- Part No.:
- DFL1502S-E3/77
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Bridge Rectifiers
- Package:
- 4-SMD, Gull Wing
- Datasheet:
-
DFL1502S-E3/77.pdf
- Description:
- BRIDGE RECT 1PHASE 200V 1.5A DFS
- Quantity:
- Payment:
- Shipping:
Inventory:2,894
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Product details
Overview
DFL1502S-E3/77 from Vishay Siliconix is a logic-level N-channel power MOSFET in TO-220AB package, rated for 200 V VDS, 0.80 Ω RDS(on) at VGS = 5 V, and 5.2 A continuous drain current at TC = 25 °C. It supports fast switching, repetitive avalanche operation, and is optimized for DC-DC converters and motor control circuits requiring robust gate drive at 4–5 V.
For engineers reviewing the DFL1502S-E3/77 datasheet, DFL1502S-E3/77 pinout, DFL1502S-E3/77 application, or DFL1502S-E3/77 equivalent, key selection criteria include its logic-level gate threshold (1.0–2.0 V), low Qg (16 nC), dV/dt ruggedness (5.0 V/ns), body diode recovery time (180–270 ns), and TO-220AB thermal resistance (RthJC = 2.5 °C/W).
Technical Context
This MOSFET employs third-generation silicon process technology to deliver enhanced ruggedness and reduced conduction losses. Its dynamic dV/dt rating and repetitive avalanche capability (EAS = 125 mJ, IAR = 5.2 A) enable reliable operation under inductive switching stress without external snubbers.
The device features low gate charge (Qg = 16 nC, Qgd = 9.6 nC) and fast switching times (td(on) = 4.2 ns, tr = 31 ns), supporting high-frequency PWM control. Its body diode exhibits VSD = 1.8 V at 5.2 A and Qrr = 1.1–1.7 μC, suitable for synchronous rectification and freewheeling applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 200 V - supports input voltages up to 160 V DC in industrial power supplies with margin |
| RDS(on) @ VGS = 5 V | 0.80 Ω - enables ≤2.1 W conduction loss at 5.2 A, reducing heatsink requirements |
| Qg | 16 nC - allows efficient gate driving with standard logic-level controllers (e.g., microcontroller GPIO or dedicated gate drivers) |
| ID (continuous, TC = 25 °C) | 5.2 A - sufficient for 60–100 W load stages in offline SMPS and BLDC gate drivers |
| tr/tf | 31 ns / 17 ns - supports switching frequencies >200 kHz with minimal overlap loss |
| EAS | 125 mJ - withstands unclamped inductive energy in relay/motor drive fault conditions without failure |
| VGS(th) | 1.0–2.0 V - ensures full enhancement with 3.3 V or 5 V logic outputs, eliminating level-shifting needs |
Pinout & Package
DFL1502S-E3/77 uses the industry-standard TO-220AB package with isolated tab (drain-connected), offering low thermal resistance (RthJC = 2.5 °C/W) and mechanical compatibility with common heatsinks.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Drain (Tab) | Main current path output / heat sink interface | Electrically connected to package tab; requires insulating washer if mounted to grounded heatsink |
| Gate | Control terminal for channel conduction | Logic-compatible input; 100 nA leakage ensures stable off-state with high-impedance drivers |
| Source | Reference node for gate drive and current return | Common connection point for gate resistor, sense resistor, and driver ground reference |
Key Features
| Feature | Design Value |
|---|---|
| Logic-level gate drive | Operates fully enhanced at VGS = 4 V (RDS(on) ≤ 1.0 Ω), enabling direct MCU or CPLD control without buffer stages |
| Repetitive avalanche rated | Rated for 5.2 A IAR and 5.0 mJ EAR under repetitive conditions-supports robust overvoltage protection in flyback and buck-boost topologies |
| Fast switching with low Qgd/Qg ratio | Qgd = 9.6 nC (60% of Qg) minimizes Miller plateau duration, improving immunity to false turn-on during high dV/dt events |
| Body diode with controlled Qrr | Qrr = 1.1–1.7 μC and trr = 180–270 ns allow predictable reverse recovery in hard-switched freewheeling paths |
| Dynamic dV/dt rating | 5.0 V/ns peak di/dt immunity prevents spurious turn-on during high-speed voltage transients across drain-source |
Applications
| DC-DC Converter Primary Switch | Brushless DC Motor Phase Driver |
|---|---|
Use Scenario: High-efficiency 24–48 V input buck converter delivering 5–12 V at up to 5 A. IC Role / Device Role / Timing Role: Main power switch controlling energy transfer via PWM at 100–500 kHz. Use Value: Low RDS(on) (0.80 Ω) and fast switching minimize conduction and switching losses, achieving >92% efficiency at full load. |
Use Scenario: Half-bridge leg in 3-phase BLDC driver for HVAC blowers or power tools (24–60 V bus). IC Role / Device Role / Timing Role: Low-side switching element commutating phase current with precise timing control. Use Value: Logic-level gate threshold ensures clean turn-on with 3.3 V microcontroller outputs; avalanche rating handles inductive kickback during PWM dead-time. |
| Industrial Relay Replacement | LED Constant-Current Driver Switch |
Use Scenario: Solid-state replacement for electromechanical relays in PLC output modules (24 V DC control, 100 V inductive loads). IC Role / Device Role / Timing Role: Load switching device handling resistive and inductive loads with zero-crossing–independent control. Use Value: Repetitive avalanche capability (125 mJ single-pulse, 5.0 mJ repetitive) absorbs stored inductor energy without snubber components. |
Use Scenario: High-side or low-side switch in constant-current LED driver for street lighting (36–72 V string, 0.7–1.5 A). IC Role / Device Role / Timing Role: Precision current regulation switch modulated at 1–20 kHz for dimming control. Use Value: Tight VGS(th) tolerance (1.0–2.0 V) and low RDS(on) drift over temperature ensure stable current accuracy across -40 to +125 °C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel power MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IRL620PbF | Same die, Pb-free plating; identical RDS(on), Qg, and avalanche ratings; RoHS-compliant termination | No functional difference; used where lead-free compliance is mandatory per IPC-J-STD-609 | Select IRL620PbF when RoHS-6 compliance is required and TO-220AB footprint is retained |
| STP20NM20 | Higher VDS (200 V same), but higher RDS(on) (0.95 Ω @ 5 V), larger Qg (22 nC), and no specified dV/dt rating | Less suitable for high-frequency or high-dV/dt environments; requires stronger gate drive | Choose STP20NM20 only if cost sensitivity outweighs switching performance and ruggedness requirements |
Compared with IRL620PbF and STP20NM20, DFL1502S-E3/77 offers identical electrical performance to IRL620PbF with verified halogen-free construction, while outperforming STP20NM20 in gate drive simplicity, switching speed, and transient robustness-critical for compact, high-reliability industrial power stages.
Availability
DFL1502S-E3/77 is available at Aetrix Electronics and suitable for DC-DC converters, BLDC motor drives, solid-state relays, and LED drivers requiring stable component supply, long-term manufacturability, and consistent parametric performance across production lots.
Supply support for DFL1502S-E3/77 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
Vishay Siliconix is a global leader in discrete semiconductors, specializing in power MOSFETs, diodes, and optoelectronics with emphasis on reliability, ruggedness, and application-specific optimization.
The DFL1502S-E3/77 belongs to Vishay's logic-level power MOSFET product line, engineered for industrial and automotive-grade power conversion systems demanding low gate drive voltage, high avalanche energy, and thermally efficient packaging.
FAQ
What is the maximum continuous drain current for DFL1502S-E3/77 at 100 °C case temperature?
The DFL1502S-E3/77 supports 3.3 A continuous drain current at TC = 100 °C, as specified in the Absolute Maximum Ratings table. This derating reflects thermal limits of the TO-220AB package and must be applied in thermal design calculations alongside RthJC = 2.5 °C/W and ambient conditions. Always verify junction temperature using measured case temperature and power dissipation in the final layout.
Does DFL1502S-E3/77 have a guaranteed avalanche energy rating?
Yes, DFL1502S-E3/77 is repetitively avalanche rated with EAR = 5.0 mJ and IAR = 5.2 A, and single-pulse avalanche energy EAS = 125 mJ. These values are tested per JEDEC standards and documented in the Absolute Maximum Ratings section. The device is designed to survive inductive switching events without external clamping in properly designed circuits.
Is DFL1502S-E3/77 compatible with 3.3 V microcontroller GPIOs?
Yes, DFL1502S-E3/77 has a gate threshold voltage VGS(th) of 1.0–2.0 V and is fully enhanced at VGS = 4 V (RDS(on) ≤ 1.0 Ω). When driven by a 3.3 V GPIO with adequate current capability (>1 mA), it achieves low on-resistance and stable conduction-no level shifter is needed. Confirm drive strength and PCB trace inductance to avoid ringing.
What is the body diode forward voltage of DFL1502S-E3/77 at 5.2 A?
The body diode forward voltage VSD of DFL1502S-E3/77 is 1.8 V at TJ = 25 °C and IS = 5.2 A with VGS = 0 V. This value increases with junction temperature and decreases slightly at lower currents. It is critical for estimating freewheeling losses in non-synchronous topologies and must be included in thermal modeling.
Can DFL1502S-E3/77 be paralleled with identical units?
Yes, DFL1502S-E3/77 is designed for ease of paralleling due to its positive RDS(on) temperature coefficient and matched threshold voltage distribution. To ensure current sharing, use symmetrical PCB layout, individual gate resistors (≤10 Ω), and Kelvin source connections. Thermal coupling between devices must also be minimized to prevent thermal runaway.
DFL1502S-E3/77 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- 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:
- 5 µA @ 200 V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFS
DFL1502S-E3/77 FAQ
1.How can I place an order for DFL1502S-E3/77 through Aetrix?
Please submit a Request for Quotation (RFQ) for DFL1502S-E3/77 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 DFL1502S-E3/77 reliable?
The price and inventory of DFL1502S-E3/77 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DFL1502S-E3/77 is usually 5 days.
3.What payment methods are accepted for DFL1502S-E3/77?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DFL1502S-E3/77 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DFL1502S-E3/77?
DFL1502S-E3/77 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DFL1502S-E3/77 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 DFL1502S-E3/77?
For technical support, including DFL1502S-E3/77 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DFL1502S-E3/77 requirements.
6.How does Aetrix verify that DFL1502S-E3/77 is sourced from the original manufacturer or authorized distributors?
All DFL1502S-E3/77 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 DFL1502S-E3/77 meets industry standards.
7.What is the process for return or replacement of DFL1502S-E3/77?
All DFL1502S-E3/77 units undergo pre-shipment inspection (PSI). If there is an issue with DFL1502S-E3/77, 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 DFL1502S-E3/77 part is unused and in its original packaging.
Return procedure for DFL1502S-E3/77:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DFL1502S-E3/77 Tags
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