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Diodes Incorporated 1N4005-B
- Part No.:
- 1N4005-B
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4005-B.pdf
- Description:
- DIODE GEN PURP 600V 1A DO41
- Quantity:
- Payment:
- Shipping:
Inventory:9,018
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Product details
Overview
1N4005-B from Diodes Incorporated is a general-purpose silicon rectifier diode in DO-41 package, rated for 600 V peak repetitive reverse voltage, 1.0 A average forward current, and 30 A non-repetitive surge current. It features low forward voltage drop (1.0 V at 1.0 A), low reverse leakage (5.0 µA at 25°C), and is widely used in AC/DC power supplies, DC power adapters, and input rectification stages of industrial power converters.
For engineers reviewing the 1N4005-B datasheet, 1N4005-B pinout, 1N4005-B application, or 1N4005-B equivalent, key selection criteria include blocking voltage margin, thermal derating behavior above 75°C, surge robustness under line transients, and compatibility with DO-41 footprint and lead-forming requirements in legacy power designs.
Technical Context
This diode employs a diffused PN junction optimized for high-current rectification in single-phase, half-wave configurations at 60 Hz. Its 100 K/W junction-to-ambient thermal resistance requires heatsinking only under sustained >75°C ambient or high-duty-cycle surge conditions.
The device exhibits 15 pF typical junction capacitance at 4.0 V reverse bias and 1 MHz, limiting high-frequency switching use; its 1.0 V forward voltage ensures minimal conduction loss at rated 1.0 A DC output, while cathode band polarity marking enables unambiguous PCB orientation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Repetitive Reverse Voltage | 600 V - supports rectification in 400 VAC RMS mains-derived supplies with safety margin |
| Average Forward Current | 1.0 A @ TA = +75°C - defines continuous DC output capability without forced cooling |
| Non-Repetitive Surge Current | 30 A (8.3 ms half-sine) - withstands inrush into capacitive loads or brief overvoltage events |
| Forward Voltage | 1.0 V @ IF = 1.0 A - contributes ≤1 W conduction loss per diode in full-wave bridge configurations |
| Reverse Leakage Current | 5.0 µA @ 25°C - ensures minimal standby power loss in high-impedance hold-up circuits |
| Junction-to-Ambient Thermal Resistance | 100 K/W - requires PCB copper area or heatsink if operating >75°C ambient or >0.5 A sustained |
Pinout & Package
DO-41 molded plastic package with axial leads; cathode identified by a distinct band on the body. Leads are bright tin-plated, solderable per MIL-STD-202 Method 208, and compliant with UL 94V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to AC source or transformer secondary side; must handle full surge current path |
| Cathode | Current exit point during forward conduction | Marked with band; connects to positive rail or filter capacitor input; defines polarity in bridge layout |
Key Features
| Feature | Design Value |
|---|---|
| Diffused junction construction | Enables stable reverse breakdown behavior and consistent surge tolerance across production lots |
| 30 A surge rating (8.3 ms) | Protects against cold-start inrush into bulk capacitors up to 1000 µF in 120 VAC systems |
| Low 5.0 µA reverse leakage at 25°C | Maintains efficiency in battery-backed or low-power standby circuits with high-impedance filtering |
| DO-41 mechanical standardization | Ensures direct replacement in legacy through-hole power supply designs without footprint redesign |
Applications
| AC/DC Wall Adapters | Industrial Control Power Supplies |
|---|---|
Use Scenario: Rectifying 120/240 VAC input to unregulated DC for linear regulators in consumer wall adapters. IC Role / Device Role / Timing Role: Primary-side rectifier in single-phase half-wave or full-wave bridge configuration. Use Value: 600 V VRRM provides 2× safety margin over 240 VAC peak (340 V), enabling reliable operation under brownout and surge conditions. | Use Scenario: Input rectification for 24 VDC PLC I/O power modules operating in factory environments. IC Role / Device Role / Timing Role: Front-end diode in discrete rectifier stage feeding bulk capacitor and downstream DC/DC converter. Use Value: 30 A IFSM sustains repeated motor contactor switching transients without degradation, verified per IEC 61000-4-4. |
| LED Driver Input Stages | Legacy Appliance Power Conversion |
Use Scenario: Bridge rectification in constant-current LED drivers for commercial lighting fixtures. IC Role / Device Role / Timing Role: One leg of four-diode bridge converting 120 VAC to pulsating DC before smoothing and regulation. Use Value: 1.0 V VF minimizes self-heating in enclosed housings, supporting >50,000-hour lifetime at 75°C ambient. | Use Scenario: Mains rectification in older microwave oven control boards and washing machine motor controllers. IC Role / Device Role / Timing Role: Discrete rectifier replacing obsolete 1N400x variants during service repair or BOM refresh. Use Value: DO-41 package and axial lead form factor ensure mechanical and soldering compatibility with original PCB footprints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar general-purpose rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4005-T | Tape-and-reel packaging (5K/reel); identical electrical specs and DO-41 package | Suitable for automated SMT placement with axial lead forming; not for manual prototyping | Select for high-volume production requiring pick-and-place compatibility |
| S1J | Same 600 V VRRM and 1.0 A IO, but in smaller DO-204AL (SMA) surface-mount package; VF = 1.1 V | Enables board space reduction and reflow assembly; lacks axial lead mechanical robustness | Select when PCB real estate is constrained and thermal management permits SMA footprint |
Compared with 1N4005-B, the 1N4005-T offers identical performance in tape-and-reel format for automation, while S1J delivers equivalent voltage/current ratings in a compact surface-mount package-ideal for space-constrained designs where axial lead strength is not required.
Availability
1N4005-B is available at Aetrix Electronics and suitable for AC/DC power adapters, industrial control power supplies, LED driver input stages, and legacy appliance repair requiring stable component supply and long-term obsolescence support.
Supply support for 1N4005-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 Americas.
The 1N400x series belongs to Diodes' general-purpose rectifier product line, designed specifically for cost-sensitive, high-reliability AC/DC front-end rectification in legacy and maintenance-critical power applications.
FAQ
Is 1N4005-B RoHS compliant?
Yes, 1N4005-B has a lead-free finish and is RoHS compliant per EU Directive 2002/95/EC, with all applicable exemptions applied. The device carries a bright tin-plated finish on leads and meets MIL-STD-202 solderability requirements.
What is the maximum operating temperature for 1N4005-B?
The 1N4005-B has a maximum junction temperature of +150°C and an operating/storage temperature range of –65°C to +150°C. Derating begins at +75°C ambient, where average forward current drops linearly to zero at +150°C case temperature.
Can 1N4005-B replace 1N4007 in a 1000 V blocking application?
No. 1N4005-B is rated for 600 V peak repetitive reverse voltage, while 1N4007 is rated for 1000 V. Substituting 1N4005-B in a 1000 V application risks catastrophic reverse breakdown and field failure; voltage rating must never be exceeded.
Does 1N4005-B have a specified junction capacitance?
Yes. Typical junction capacitance is 15 pF measured at 1.0 MHz and 4.0 V DC reverse bias. This value is relevant for EMI filter design and high-frequency noise coupling analysis but does not support switching above ~10 kHz.
1N4005-B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 600 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 1 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 5 µA @ 600 V
- Capacitance @ Vr, F:
- 8pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-41
- Operating Temperature - Junction:
- -65°C ~ 150°C
1N4005-B FAQ
1.How can I place an order for 1N4005-B through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4005-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 1N4005-B reliable?
The price and inventory of 1N4005-B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4005-B is usually 5 days.
3.What payment methods are accepted for 1N4005-B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4005-B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4005-B?
1N4005-B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4005-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 1N4005-B?
For technical support, including 1N4005-B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4005-B requirements.
6.How does Aetrix verify that 1N4005-B is sourced from the original manufacturer or authorized distributors?
All 1N4005-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 1N4005-B meets industry standards.
7.What is the process for return or replacement of 1N4005-B?
All 1N4005-B units undergo pre-shipment inspection (PSI). If there is an issue with 1N4005-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 1N4005-B part is unused and in its original packaging.
Return procedure for 1N4005-B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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