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Diodes Incorporated 1N5402-T
- Part No.:
- 1N5402-T
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1N5402-T.pdf
- Description:
- DIODE GEN PURP 200V 3A DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:9,918
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Product details
Overview
1N5402-T from Diodes Incorporated is a 3.0A, 200V peak repetitive reverse voltage general-purpose silicon rectifier diode in DO-201AD package, featuring 1.0V forward voltage at 3.0A, 200A non-repetitive surge capability, and low 10µA reverse leakage at 25°C - used in AC/DC power supplies, battery chargers, and DC motor control circuits.
For engineers reviewing the 1N5402-T datasheet, 1N5402-T pinout, 1N5402-T application, or 1N5402-T equivalent, key selection criteria include rated blocking voltage (200V), thermal resistance (15°C/W), surge rating (200A @ 8.3ms), junction temperature range (–65°C to +150°C), and RoHS-compliant tin-plated leads.
Technical Context
This axial-lead rectifier operates in single-phase, half-wave configurations with resistive or inductive loads at 60Hz; capacitive loads require 20% current derating. Its diffused junction enables stable high-current conduction and low forward voltage drop under sustained 3.0A average output at TA = 105°C.
Thermal performance is defined with leads held at ambient temperature 9.5mm from case; typical junction-to-ambient thermal resistance is 15°C/W. Total capacitance measures 50pF at 1MHz and 4V reverse bias, supporting moderate-speed switching in line-frequency applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum peak reverse voltage the diode blocks without breakdown during normal operation. |
| IO @ TA=105°C | 3.0 A - Continuous average forward current rating when ambient temperature is 105°C with specified lead length. |
| VFM @ IF=3.0A | 1.0 V - Forward voltage drop at full-rated DC output current, directly impacting conduction loss and thermal design. |
| IFSM | 200 A - Non-repetitive surge current tolerance for 8.3ms half-sine wave, critical for inrush and fault protection. |
| IRM @ 25°C | 10 µA - Reverse leakage current at rated DC blocking voltage, indicating low off-state power loss. |
| RθJA | 15 °C/W - Junction-to-ambient thermal resistance, defining temperature rise per watt of dissipated power under specified mounting conditions. |
| Tj/TSTG | –65°C to +150°C - Operating and storage temperature envelope, supporting industrial and automotive under-hood environments. |
Pinout & Package
Package: DO-201AD molded plastic case (UL 94V-0), axial-leaded, cathode indicated by band marking, 1.1g mass, tin-plated solderable leads per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to AC input or transformer secondary; must withstand surge currents and reverse recovery stress. |
| Cathode | Forward current exit point | Marked with band; connects to filter capacitor or load; carries full output current and defines polarity of DC output. |
Key Features
| Feature | Design Value |
|---|---|
| Diffused junction construction | Enables robust high-current handling and stable forward voltage over temperature and lifetime. |
| 200A surge rating (8.3ms) | Supports reliable operation during transformer inrush, motor startup, and transient overload events. |
| Low 10µA reverse leakage @ 25°C | Minimizes standby power loss and improves efficiency in low-power or battery-backed systems. |
| DO-201AD package with tin-plated leads | Ensures compatibility with standard through-hole assembly processes and RoHS-compliant reflow/soldering. |
| 15°C/W thermal resistance | Allows direct PCB trace heatsinking without additional thermal pads or clips in many 3A applications. |
Applications
| AC/DC Power Supply Input Stage | Battery Charger Rectification |
|---|---|
Use Scenario: Converts 50/60Hz AC mains or transformer output to pulsating DC before filtering and regulation. IC Role / Device Role / Timing Role: Primary rectifying element in single-phase half-wave or full-wave bridge configurations. Use Value: Delivers 3.0A average output with 1.0V conduction loss, enabling compact thermal design in wall adapters and open-frame supplies. | Use Scenario: Rectifies AC from transformer-based charger circuits for lead-acid or NiMH battery banks. IC Role / Device Role / Timing Role: Unidirectional current path ensuring proper battery polarity and preventing reverse discharge. Use Value: Withstands repeated 200A surge events during transformer energization, improving long-term reliability in cyclic charge/discharge use. |
| DC Motor Field Supply | Industrial Control Power Rails |
Use Scenario: Provides unregulated DC excitation current to shunt-wound DC motor field windings. IC Role / Device Role / Timing Role: High-current, line-frequency rectifier supplying steady magnetic field current. Use Value: Stable 200V blocking capability prevents breakdown during motor back-EMF transients and commutation spikes. | Use Scenario: Generates auxiliary 24V or ±15V rails for PLC I/O modules, sensor interfaces, and relay drivers. IC Role / Device Role / Timing Role: Input-stage rectifier feeding bulk capacitor and linear regulator or DC/DC converter. Use Value: Low 10µA reverse leakage minimizes no-load power draw in always-on industrial control subsystems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5402-B | Same electrical specs; packaged in 500-piece bulk instead of 1.2K tape-and-reel. | No functional difference; suited for manual or low-volume prototyping vs. automated SMT placement. | Select for lab evaluation or small-batch builds where reel packaging is unnecessary. |
| 1N5404-T | Higher 400V VRRM rating; identical IO, VFM, IFSM, and package. | Used where higher reverse margin is required (e.g., 230VAC input with poor regulation or surges). | Choose when system-level reverse voltage stress exceeds 200V but same current and thermal performance is needed. |
Compared with 1N5402-T, 1N5402-B offers identical performance in bulk form for flexibility in low-volume use, while 1N5404-T provides 200V extra reverse voltage headroom without changing footprint or thermal behavior - enabling direct upgrade paths in existing designs.
Availability
1N5402-T is available at Aetrix Electronics and suitable for AC/DC power supplies, battery chargers, and industrial control power rails requiring stable component supply and long-lifecycle support.
Supply support for 1N5402-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, cost-optimized components for power management and signal conditioning.
The S3A–S3M series, including 1N5402-T, was designed for general-purpose line-frequency rectification in cost-sensitive industrial, consumer, and computing power supplies.
FAQ
Is 1N5402-T suitable for high-frequency switching applications?
No. The 1N5402-T is a general-purpose silicon rectifier optimized for 50/60Hz line-frequency operation. Its relatively slow reverse recovery time (not specified in the datasheet) and 50pF junction capacitance make it unsuitable for PWM or SMPS applications above ~10kHz. Use fast or ultrafast recovery diodes for switching converters.
What is the maximum allowable PCB trace width for heat dissipation at 3.0A?
With RθJA = 15°C/W and 1.0V forward drop, power dissipation is ~3.0W. To limit junction temperature rise to ≤75°C above ambient, ≥100mm² of 2oz copper area (e.g., 10mm × 10mm pad with thermal vias) is recommended. Derating applies above TA = 105°C per Fig. 1.
Does 1N5402-T meet lead-free assembly requirements?
Yes. The device features lead-free, RoHS-compliant tin-plated leads and conforms to J-STD-020C Level 1 moisture sensitivity. It supports standard reflow profiles up to 260°C peak and is compatible with both wave and selective soldering per MIL-STD-202 Method 208.
Can 1N5402-T be used in full-wave bridge configurations?
Yes. Four 1N5402-T diodes can construct a discrete full-wave bridge rectifier for up to 3.0A average DC output. Each diode sees only half the transformer secondary voltage, so 200V VRRM is sufficient for ≤140V RMS secondaries. Ensure symmetrical layout and thermal coupling for balanced current sharing.
1N5402-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-201AD, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 3 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 10 µA @ 200 V
- Capacitance @ Vr, F:
- 50pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201AD
- Operating Temperature - Junction:
- -65°C ~ 150°C
1N5402-T FAQ
1.How can I place an order for 1N5402-T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5402-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 1N5402-T reliable?
The price and inventory of 1N5402-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5402-T is usually 5 days.
3.What payment methods are accepted for 1N5402-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5402-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5402-T?
1N5402-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5402-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 1N5402-T?
For technical support, including 1N5402-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5402-T requirements.
6.How does Aetrix verify that 1N5402-T is sourced from the original manufacturer or authorized distributors?
All 1N5402-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 1N5402-T meets industry standards.
7.What is the process for return or replacement of 1N5402-T?
All 1N5402-T units undergo pre-shipment inspection (PSI). If there is an issue with 1N5402-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 1N5402-T part is unused and in its original packaging.
Return procedure for 1N5402-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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