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Diodes Incorporated 1N5406-B
- Part No.:
- 1N5406-B
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1N5406-B.pdf
- Description:
- DIODE GEN PURP 600V 3A DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:8,437
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Product details
Overview
1N5406-B from Diodes Incorporated is a 3.0A, 600V 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 1N5406-B datasheet, 1N5406-B pinout, 1N5406-B application, or 1N5406-B equivalent, key selection criteria include its 600V VRRM rating, thermal resistance of 15°C/W, DO-201AD mechanical outline, and derated current handling up to 105°C ambient.
Technical Context
This axial-leaded 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 performance across -65°C to +150°C operating range.
Thermal design relies on lead-to-ambient conduction (RθJA = 15°C/W), assuming leads held at ambient temperature 9.5mm from case. Total capacitance is 25pF at 1MHz and 4V reverse bias, supporting moderate-speed switching in line-frequency applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - maximum peak reverse voltage before breakdown; defines safe AC input voltage ceiling in bridge or half-wave rectifiers |
| IO @ 105°C | 3.0 A - average forward current rating at elevated ambient; requires heatsinking or airflow for sustained operation near limit |
| VFM @ 3.0A | 1.0 V - forward voltage drop determines conduction loss (3.0W per diode at full load) and thermal rise |
| IFSM | 200 A - 8.3ms half-sine surge rating; withstands inrush currents during cold-start of transformer-based supplies |
| IRM @ 25°C | 10 μA - low reverse leakage ensures minimal standby power loss in high-impedance hold-up or sensing circuits |
| RθJA | 15 °C/W - junction-to-ambient thermal resistance; sets temperature rise under given power dissipation without PCB copper or heatsink |
Pinout & Package
DO-201AD package: axial-leaded, molded plastic case (UL 94V-0), cathode indicated by band, tin-plated leads, 1.1g mass. Dimensions: A = 25.4 mm (length), B = 7.2–9.5 mm (body diameter), C = 1.2–1.3 mm (lead diameter), D = 4.8–5.3 mm (lead spacing).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connects to AC source or transformer secondary; polarity must align with circuit's forward-bias requirement |
| Cathode | Forward current exit point | Marked with band; connects to positive rail or load return; reverse voltage applied between cathode and anode |
Key Features
| Feature | Design Value |
|---|---|
| Diffused junction construction | Enables robust surge tolerance and stable long-term reverse leakage behavior over temperature and life |
| 200A non-repetitive surge rating | Supports reliable startup in transformer-coupled supplies with high magnetizing inrush currents |
| Low 10μA reverse leakage at 25°C | Minimizes power loss in high-voltage hold-up stages and improves efficiency in low-power standby modes |
| DO-201AD mechanical standardization | Ensures compatibility with automated axial insertion equipment and legacy board layouts |
Applications
| AC/DC Power Supply Input Stage | Battery Charger Rectification |
|---|---|
Use Scenario: Converts 120/230VAC mains to unregulated DC using half-wave or center-tapped transformer configuration. IC Role / Device Role / Timing Role: Rectifier diode conducting during positive half-cycle; blocks reverse voltage during negative half-cycle. Use Value: 600V VRRM safely handles 230VAC mains peaks (≈325V) with margin; 3.0A IO supports up to 36W output at 12V. | Use Scenario: Rectifies transformer output in linear battery chargers for lead-acid or NiMH cells. IC Role / Device Role / Timing Role: Unidirectional current path enabling DC charging current while blocking reverse discharge paths. Use Value: Low 1.0V VFM reduces heat generation in compact enclosures; 200A IFSM tolerates transformer saturation surges. |
| DC Motor Field Supply | Industrial Control Power Rails |
Use Scenario: Provides excitation current to shunt-wound DC motor field windings from rectified AC. IC Role / Device Role / Timing Role: Steady-state rectifier delivering constant DC field current; not subject to fast switching. Use Value: High 3.0A continuous rating sustains field current without forced cooling; DO-201AD allows through-hole mounting on control boards. | Use Scenario: Generates auxiliary 24V or ±15V rails for PLC I/O modules, relay drivers, and sensor interfaces. IC Role / Device Role / Timing Role: Primary rectifier in multi-output linear power supplies feeding regulator ICs. Use Value: 15°C/W RθJA enables predictable thermal design; RoHS-compliant tin plating ensures solderability in automated assembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5406-T | Same electrical specs; tape-and-reel packaging (1.2K/reel) vs. bulk (500/unit) | Optimized for SMT-compatible axial tape feeders and automated placement | Select for high-volume production requiring consistent reel-fed handling |
| RS3M | Same DO-201AD package, 3A/1000V, but faster recovery (500ns vs. ~2μs); higher VRRM | Better suited for higher-frequency flyback or snubber circuits where reverse recovery matters | Choose RS3M only if circuit operates above 1kHz or requires lower switching loss |
Compared with 1N5406-B, the 1N5406-T offers identical performance in tape-and-reel form for automated assembly, while RS3M provides higher voltage rating and faster recovery-valuable only when line-frequency rectification is insufficient.
Availability
1N5406-B is available at Aetrix Electronics and suitable for AC/DC power supplies, battery chargers, and industrial control power rails requiring stable component supply and legacy DO-201AD footprint compatibility.
Supply support for 1N5406-B 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, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the US.
The S3A-S3M series - including 1N5406-B - was engineered for cost-sensitive, high-reliability line-frequency rectification in industrial, appliance, and power conversion applications.
FAQ
Is 1N5406-B suitable for new designs?
No - Diodes Incorporated explicitly marks 1N5406-B as "NOT RECOMMENDED FOR NEW DESIGN USE" in its official datasheet (DS28007 Rev. 8-3). It remains viable for legacy repair, maintenance, and continuity programs, but modern alternatives with improved efficiency, smaller footprints, or enhanced surge robustness should be evaluated for new projects.
What is the maximum operating temperature for continuous 3.0A current?
The 3.0A average forward current rating applies only at TA = 105°C, provided leads are held at ambient temperature at a distance of 9.5mm from the case. At 25°C ambient, the device can sustain higher current briefly, but thermal derating must follow Fig. 1 in DS28007 - e.g., ~2.2A at 75°C ambient.
Does 1N5406-B have a specified reverse recovery time?
No - the datasheet does not specify reverse recovery time (trr) for 1N5406-B. It is a general-purpose rectifier optimized for 50/60Hz operation, not high-frequency switching. Measured typical trr exceeds 1.5μs; for fast-recovery requirements, devices like RS3M (500ns) or UF5406 (75ns) are appropriate alternatives.
Can 1N5406-B replace 1N5408 in a 1000V design?
No - 1N5406-B has a 600V peak repetitive reverse voltage (VRRM), while 1N5408 is rated for 1000V. Substituting into a 1000V circuit risks catastrophic reverse breakdown. Voltage ratings are not interchangeable; always select based on worst-case reverse voltage stress, including transients and safety margins.
1N5406-B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-201AD, Axial
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 600 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 @ 600 V
- Capacitance @ Vr, F:
- 25pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201AD
- Operating Temperature - Junction:
- -65°C ~ 150°C
1N5406-B FAQ
1.How can I place an order for 1N5406-B through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5406-B 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 1N5406-B reliable?
The price and inventory of 1N5406-B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5406-B is usually 5 days.
3.What payment methods are accepted for 1N5406-B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5406-B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5406-B?
1N5406-B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5406-B 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 1N5406-B?
For technical support, including 1N5406-B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5406-B requirements.
6.How does Aetrix verify that 1N5406-B is sourced from the original manufacturer or authorized distributors?
All 1N5406-B 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 1N5406-B meets industry standards.
7.What is the process for return or replacement of 1N5406-B?
All 1N5406-B units undergo pre-shipment inspection (PSI). If there is an issue with 1N5406-B, 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 1N5406-B part is unused and in its original packaging.
Return procedure for 1N5406-B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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