What Is the 1N4007? Rectifier Diode: The 1N400x Family and Uses
The 1N4007 is the most common rectifier power diode. It is the highest-voltage member of the 1N400x family (1000 V, 1 A); it is used for AC-DC rectification, freewheeling across inductive loads and reverse-polarity protection. It is slow and not suited to high-frequency SMPS (use the UF4007 or a Schottky like the 1N5819).
The 1N4007 is the most common rectifier power diode. It is the highest-voltage member of the 1N400x family (1000 V) and a standard part for converting AC to DC and for reverse-voltage protection. For the concept, see what is a diode.
What is the 1N4007 used for?
Rectification at a mains/transformer output (half/full-wave bridge), freewheel diode across inductive loads (relay/motor), reverse-polarity protection and general-purpose power steering. It carries up to 1 A continuously.
The 1N400x family — by voltage
| Part | Reverse voltage (VR) |
|---|---|
| 1N4001 | 50 V |
| 1N4004 | 400 V |
| 1N4007 | 1000 V |
They all carry 1 A; the only difference is the reverse voltage they withstand. Being the highest, the 1N4007 is the most-chosen "fits everywhere" part.
Key electrical specifications
| Parameter | Typical value |
|---|---|
| Type | Rectifier diode |
| Reverse voltage (VR) | 1000 V |
| Forward current (average) | 1 A |
| Body | DO-41 |
Limitations
- It is slow (high trr); not for high-frequency switching supplies → use the UF4007 (fast) or a Schottky (1N5819).
- Forward drop ~1 V; if you need low loss, prefer a Schottky.
- For signal-speed work use the 1N4148.
1N4007 equivalents and alternatives
- 1N4001–1N4006: the lower-voltage members of the same family.
- UF4007: the fast-recovery version (for SMPS).
- 1N5408: a stronger 3 A rectifier.
- 1N5819: a low-loss Schottky alternative.
Find it in our catalog
To compare price and stock for the 1N4007 and its alternatives, use the 1N4007 search.