1N4007 1000V 1A GENERAL PURPOSE DIODE DO-41

If your board needs a 1n4007 diode for rectification, and the old part is a 1000V 1A general-purpose diode in a DO-41 body, this is the part to order. It is a 1A rectifier diode that turns AC into DC in power supplies, adapters, and solar inverters, with a 1000V reverse rating and a 30A surge rating for short spikes. It does not fit jobs that need more than 1000V reverse, more than 1A of steady forward current, fast switching, or a different package. Check the checks below before you order, so the voltage, the current, the polarity, and the body all match your board.

This is an original, high-quality part.

What it does

A rectifier diode lets current flow one way and blocks it the other way. In a power supply, four diodes like this one (or a bridge made from them) turn AC from the mains or a transformer into DC that the circuit can use. The 1N4007 is the highest-voltage member of the 1N4001 to 1N4007 family: it blocks up to 1000V in reverse, so it fits mains-voltage rectification where a lower-voltage member would fail. In forward use it drops at most 1.1V at 1A, and it leaks at most 5.0 microamps in reverse at room temperature.

The band printed on the body marks the cathode end — the end the current comes OUT of when the diode is conducting. The other end is the anode. Fit it the wrong way round and the circuit will not rectify; it will block instead of passing current.

Key features

• 1N4007 general-purpose rectifier diode, 1000V, 1A
• DO-41 axial package, molded epoxy body
• Maximum repetitive peak reverse voltage 1000V
• Average forward rectified current 1.0A at 75 °C ambient
• High surge capability: 30A for an 8.3 ms half sine-wave
• Low forward voltage drop: 1.1V at most at 1.0A
• Low leakage current: 5.0 µA at most at 25 °C
• Wide temperature range: −50 °C to +150 °C
• Color band marks the cathode end

Checks before you order

• Part code: the old part must be a 1N4007. The 1N4001 to 1N4006 members look the same but block less voltage — 50V, 100V, 200V, 400V, 600V, and 800V. If your board needs 1000V, only the 1N4007 fits. Check the marking on the old part before you order.
• Voltage: the reverse voltage across the part must stay at or below 1000V peak, 700V RMS, and 1000V DC blocking. Above that, this part is the wrong pick.
• Current and heat: the steady average current must stay at or below 1.0A, and that 1.0A counts at 75 °C ambient with 9.5 mm lead length — above 75 °C the safe current drops, so check the derating for your real working temperature. At 1A the drop is up to 1.1V, which turns into heat in the part, so give it air and keep the leads at the rated length.
• Surge: short spikes are covered up to 30A for one 8.3 ms half sine-wave. If your circuit sees bigger or longer spikes, this part is the wrong pick.
• Polarity: the color band on the body is the cathode. Match it to the band mark on your board before you solder. A diode fitted backwards blocks instead of conducting.
• Body and fit: your board must take a DO-41 axial body, about 4.1 to 5.2 mm long and 2.0 to 2.7 mm across, with leads about 0.71 to 0.86 mm thick. A RS1J SMD fast-switching rectifier is a surface-mount part for fast switching, not a swap for this axial general-purpose diode. A RHRP1560 hyper-fast diode in TO-220 is a 600V 15A part in a different package, not a swap for this one either.

Specifications

All figures below are from the official datasheet served by the Download button on this page. No figure here was guessed.

Other names for the same part (good to know)

Shoppers and repair techs call this same part by a few names. 1N4007 is the plain part code most buyers type. 1N4007 rectifier diode is the name that says what it does. 1000v 1a diode is the name buyers use when the voltage and current are what matter. DO-41 diode is the name buyers use when the package size matters. If your board list calls for 1000V at 1A in a DO-41 body, this page is the right match. Do not judge by the package alone — check the part code too, because the lower-voltage members of the same family look the same.

Frequently Asked Questions

What does 1N4007 mean?

1N4007 is the part code for a general-purpose rectifier diode rated 1000V and 1A. It is the highest-voltage member of the 1N4001 to 1N4007 family — the other members look the same but block less voltage.

Which end is the cathode?

The end with the color band on the body is the cathode. Current flows from the anode (the unbanded end) to the cathode (the banded end) when the diode is conducting. Match the band to the mark on your board.

Can I use this part above 1000V?

No. 1000V is the maximum repetitive peak reverse voltage for this part. A circuit that puts more than 1000V across the diode in reverse needs a part rated for that higher voltage, not this one.

What current can it carry?

Up to 1.0A average forward current, rated at 75 °C ambient with 9.5 mm lead length. Short surges up to 30A are covered for one 8.3 ms half sine-wave. Above 75 °C ambient, the safe average current drops.

What is the forward voltage drop?

At most 1.1V at 1.0A. That drop turns into heat in the part, so at full current the diode runs warm — give it air and keep the leads at the rated length.

What is the price of this part?

Check the live price on the website. The price shown on the product page is the current one.

Use note kept from the old page: this part was listed before as a 1N4007 diode, a 1000V 1A general-purpose diode for rectification in power supplies, adapters, and solar inverters, converting AC to DC with stable performance, in a durable DO-41 package for easy integration, with high surge capability and low forward voltage, reducing power loss and improving energy efficiency, for high-voltage rectification, solar power converters, and battery charging circuits — and that use still stands.

You can view and download the datasheet for this part from the Download button on this page.