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Diodes Incorporated 1N4007-B
- Part No.:
- 1N4007-B
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4007-B.pdf
- Description:
- DIODE GEN PURP 1KV 1A DO41
- Quantity:
- Payment:
- Shipping:
Inventory:2,350
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Product details
Overview
1N4007-B from Diodes Incorporated is a general-purpose silicon rectifier diode in DO-41 package, rated for 1.0A average forward current and 1000V peak repetitive reverse voltage, with 1.0V forward voltage at 1.0A and 5.0μA reverse leakage at 25°C, widely used in AC/DC power supply front-end rectification for industrial power adapters and embedded system auxiliary supplies.
For engineers reviewing the 1N4007-B datasheet, 1N4007-B pinout, 1N4007-B application, or 1N4007-B equivalent, key selection criteria include peak reverse voltage margin, surge current capability (30A), thermal resistance (100K/W), junction capacitance (8pF), and RoHS-compliant tin-plated leads for reliable solderability.
Technical Context
This device implements a diffused-junction PN structure optimized for high-voltage blocking and low-conduction loss in single-phase half-wave or full-wave bridge configurations. It supports 60Hz line-frequency operation with derating guidance for capacitive loads and includes thermal limits up to +150°C junction temperature.
Its 30A non-repetitive surge rating enables robust handling of inrush currents during power-up, while the 8pF junction capacitance at 4V reverse bias minimizes high-frequency switching noise in low-speed rectifier applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - Sustains 1kV peak reverse voltage without breakdown, suitable for 700V RMS mains-derived circuits. |
| IO @ TA=75°C | 1.0 A - Continuous DC output current capability when ambient is 75°C, requiring heatsinking above that temperature. |
| VFM @ IF=1.0A | 1.0 V - Forward conduction loss yields ~1W dissipation at full load, dictating thermal design in compact enclosures. |
| IFSM (8.3ms) | 30 A - Withstands short-duration inrush surges common in transformer-coupled or capacitor-input power supplies. |
| IRM @ 25°C | 5.0 μA - Low leakage preserves efficiency in high-impedance hold-up or sensing paths near rated blocking voltage. |
| RθJA | 100 K/W - Junction-to-ambient thermal resistance defines required PCB copper area or airflow for safe operation. |
Pinout & Package
Package: DO-41 molded plastic case (UL 94V-0), axial lead configuration with cathode band marking; weight ≈0.30 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to AC input or transformer secondary; polarity-sensitive for correct rectification direction. |
| Cathode | Forward current exit / reverse blocking terminal | Marked with band; ties to positive rail in half-wave or bridge output; must withstand full VRRM. |
Key Features
| Feature | Design Value |
|---|---|
| Diffused junction construction | Enables stable 1000V blocking with controlled avalanche behavior under transient overvoltage. |
| 30A surge rating (8.3ms) | Accommodates cold-start inrush in linear power supplies without degradation or failure. |
| Bright tin-plated leads | Ensures MIL-STD-202-compliant solder wetting and long-term intermetallic reliability on PCBs. |
| Junction capacitance = 8pF | Minimizes RF coupling and EMI generation in low-frequency (<1MHz) rectifier nodes. |
Applications
| AC/DC Wall Adapters | Industrial Control Power Supplies |
|---|---|
Use Scenario: Step-down transformer followed by single-phase rectification into bulk capacitor filter. IC Role / Device Role / Timing Role: Primary rectifier converting 12–24VAC transformer output to unregulated DC. Use Value: 1000V VRRM provides >2× safety margin over 24VAC RMS (34V peak), ensuring long-term reliability under line transients. | Use Scenario: Auxiliary 5V/12V supply derived from 230VAC mains via transformer and bridge rectifier. IC Role / Device Role / Timing Role: Individual leg in discrete full-wave bridge configuration. Use Value: 30A IFSM tolerates repeated motor-controller startup surges without parameter shift or thermal runaway. |
| Embedded System Standby Rails | LED Driver Input Stage |
Use Scenario: Low-power always-on circuit powered from rectified AC line through high-value series resistor. IC Role / Device Role / Timing Role: Half-wave rectifier feeding RC-filtered standby voltage. Use Value: 5.0μA IRM at 25°C prevents excessive quiescent current drain in energy-sensitive IoT node sleep modes. | Use Scenario: Rectification stage preceding constant-current LED driver IC in outdoor lighting fixtures. IC Role / Device Role / Timing Role: Input-side diode in capacitive-input rectifier feeding buck controller. Use Value: DO-41 axial package allows manual assembly and rework in high-voltage LED driver PCBs with >6mm creepage spacing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4007-T | Same electrical specs; tape-and-reel packaging (5K/reel) vs. bulk (1K). | Automated SMT placement compatible; requires reel feeder and de-taping process. | Select for high-volume production lines using pick-and-place equipment. |
| S1M | Same VRRM (1000V) and IO (1.0A), but DO-204AA (SMA) surface-mount package; 1.1V VFM. | Enables PCB space reduction and reflow assembly; higher thermal resistance (120K/W). | Select when board area is constrained and thermal management permits higher RθJA. |
Compared with 1N4007-B, the 1N4007-T offers identical performance in automated manufacturing, while S1M trades axial through-hole serviceability for surface-mount density-both require review of mechanical layout and thermal path integrity.
Availability
1N4007-B is available at Aetrix Electronics and suitable for AC/DC power adapters, industrial control power supplies, and embedded system standby rails requiring stable component supply across extended product lifecycles.
Supply support for 1N4007-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 centers across Asia and manufacturing in China, Taiwan, and Malaysia.
The 1N400x series belongs to Diodes' general-purpose rectifier product line, engineered for cost-sensitive, high-reliability AC/DC conversion in legacy and maintenance-critical power systems.
FAQ
Is 1N4007-B suitable for use in new designs?
No-Diodes Incorporated explicitly marks this part as "NOT RECOMMENDED FOR NEW DESIGN USE" in its official datasheet (DS28002 Rev. 9-3). It remains viable for repair, replacement, and legacy system maintenance, but newer alternatives like the S1M or GBU6K offer improved efficiency, smaller footprints, or enhanced surge robustness for new development.
What is the maximum operating temperature for 1N4007-B?
The 1N4007-B has a specified junction and storage temperature range of –65°C to +150°C. Its thermal resistance is 100K/W, so sustained operation at 1.0A requires limiting ambient temperature or adding heatsinking-derating curves show usable current drops to ~0.6A at +75°C ambient without forced cooling.
How does the DO-41 package affect PCB layout?
The DO-41 axial package requires ≥9.5mm lead length beyond the case for thermal relief per datasheet note 1. PCB pads must accommodate 4.06–5.21mm body width and 2.00–2.72mm lead diameter, with ≥2.5mm clearance between cathode band and adjacent traces to maintain 1000V isolation in humid environments.
Can 1N4007-B replace 1N4004 in an existing design?
Yes-1N4007-B is backward-compatible with 1N4004 in all electrical respects (same IO, IFSM, VFM, RθJA), while offering higher reverse voltage rating (1000V vs. 400V). No layout or thermal changes are needed, though the higher VRRM may improve margin against line surges in mains-connected applications.
1N4007-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):
- 1000 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 @ 1000 V
- Capacitance @ Vr, F:
- 8pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-41
- Operating Temperature - Junction:
- -
1N4007-B FAQ
1.How can I place an order for 1N4007-B through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4007-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 1N4007-B reliable?
The price and inventory of 1N4007-B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4007-B is usually 5 days.
3.What payment methods are accepted for 1N4007-B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4007-B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4007-B?
1N4007-B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4007-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 1N4007-B?
For technical support, including 1N4007-B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4007-B requirements.
6.How does Aetrix verify that 1N4007-B is sourced from the original manufacturer or authorized distributors?
All 1N4007-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 1N4007-B meets industry standards.
7.What is the process for return or replacement of 1N4007-B?
All 1N4007-B units undergo pre-shipment inspection (PSI). If there is an issue with 1N4007-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 1N4007-B part is unused and in its original packaging.
Return procedure for 1N4007-B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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