1N4007General-purpose silicon rectifier

Pass one polarity. Block the other.

Manufacturer-referenced

Vishay General Semiconductor · 1N4007-E3

DO-4188503 · 29 April 2020

1N4007 is a general-purpose silicon rectifier with two terminals. It conducts conventional current from anode to cathode when forward biased and blocks reverse voltage within its rated limits. The colored band identifies the cathode end of its axial body. The reviewed Vishay 1N4007-E3 uses a DO-41 package. Its 1000 V repetitive reverse rating is the highest in this 1N4001–1N4007 family; its average-current rating is 1 A under the specified lead-length and temperature conditions. A PCB footprint can choose a formed lead spacing, so the page states its authored 10.16 mm pitch explicitly. A small, isolated 9 V RMS AC example shows half-wave rectification without a reservoir capacitor. The output remains pulsating. Forward drop, load current, heating and reverse recovery matter; this general-purpose part must not be treated as a fast-recovery switching diode.

Real View

1N4007 black axial rectifier with a silver cathode band and silver formed leads.

Pinout

1N4007-E3DO-41Top view · band at K1 · A2 opposite

PCB Footprint

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3D View

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Cathode / bandAnode / forward entry

1N4007-E3DO-41Top view · band at K1 · A2 opposite

Click a lead or use the arrow keys. Top view · band at K1 · A2 opposite

PIN 1 · Cathode / band

K

Cathode

Function

The banded end of the rectifier.

How to connect

Connect to the positive half-wave output in the example.

Electrical note

This page uses the KiCad convention 1 = cathode, 2 = anode. The manufacturer identifies polarity by the band, not numeric package pins.

At a glance

General-purpose silicon rectifier

Forward bias allows current through the external load; reverse bias blocks most current. The diode is not a current limiter and the output of one-diode rectification is not smooth DC.

1000 V · VRRMReverse peak rating

1 A · stated mountingAverage forward current

1.1 V · IF = 1 AForward drop maximum

150 °C · maximumJunction limit

Operating profile

1N4007-E3

Selected package: DO-411N4007-E3
Banded terminal: CathodeK1 in this page’s PCB convention
Example supply: 9 V RMSIsolated low-voltage AC

Selected device and polarity

Key parameters and their test conditions

Reference: Vishay document 88503Conditions / notes: Electrical revision 29 April 2020
Selected family: 1N4007-E3Conditions / notes: Commercial, RoHS-compliant base part
Package: DO-41 / DO-204ALConditions / notes: Molded axial body with plated leads
Cathode identification: Colored body bandConditions / notes: Independent of how the part is rotated
Page / KiCad numbering: 1 K · 2 AConditions / notes: Editorial PCB convention; manufacturer uses polarity names
Authored lead spacing: 10.16 mmConditions / notes: A formed horizontal mounting choice, not a fixed straight-lead package pitch

Package details

Follows the selected physical package

Manufacturer: Vishay General Semiconductor
Part number: 1N4007-E3
Package: DO-41
Connections: 2 pins
Mounting: Through-hole
Lead pitch: 10.16 mm · formed for this footprint
Package code: DO-204AL
Thermal reference: Rated current depends on lead length, copper and ambient temperature

Connections by function

Select a pin to open its function, electrical notes and wiring guidance.

Cathode / band1 pins

Anode / forward entry1 pins

1N4007 interactive datasheet with cathode-band pinout, compact PN-junction explanation, isolated low-voltage half-wave circuit, waveform calculations, 3D DO-41 view and KiCad footprint. — Open the image for a closer look. The individual diagrams are also available in their own tabs.

Identify the band

The banded end is cathode K, numbered 1 in this PCB convention.

Pass the positive half-cycle

The anode must be positive enough relative to cathode to forward-bias the junction.

Recognize the ripple

With no filter capacitor, current returns to zero through each blocked half-cycle.

For 9 V RMS sine input, the peak is about 12.73 V. A fixed 0.7 V drop model gives about 12.03 V peak and 12.03 mA peak into 1 kΩ; the negative half-cycle is blocked.

1N4007 PNjunctionbodycathodebandNsideanodePsidewithdepletionregion. — Simplified functional regions; not a die cross-section or scale drawing.

Isolated9VRMSACsourcefeedsanode1N4007bandedcathodeto1kohmloadcommonreturn. — Original drawing; no filter capacitor, so the output is pulsating.

Pin reference

Select a pin to explore its function and connection.

2 pins

Pin	Signal	Type	Function
	K	Cathode	The banded end of the rectifier.
	A	Anode	Conventional forward current enters here and leaves the cathode.

Selected device and polarity

Manufacturer scope and page conventions

Manufacturer specifications 6 parameters

Parameter	Value	Conditions / notes
Reference	Vishay document 88503	Electrical revision 29 April 2020
Selected family	1N4007-E3	Commercial, RoHS-compliant base part
Package	DO-41 / DO-204AL	Molded axial body with plated leads
Cathode identification	Colored body band	Independent of how the part is rotated
Page / KiCad numbering	1 K · 2 A	Editorial PCB convention; manufacturer uses polarity names
Authored lead spacing	10.16 mm	A formed horizontal mounting choice, not a fixed straight-lead package pitch

Do not infer electrical polarity solely from left/right placement after rotation.

Voltage and current ratings

Selected 1N4007 column

Manufacturer specifications 7 parameters

Parameter	Value	Conditions / notes
Repetitive reverse peak VRRM	1000 V	Maximum
RMS reverse voltage	700 V	Maximum
DC blocking voltage	1000 V	Maximum
Average rectified current	1 A	TA 75°C; 9.5 mm lead length
Single half-sine surge	30 A	8.3 ms, superimposed on rated load
Square-wave nonrepetitive surge	45 / 35 / 30 A	1 / 2 / 5 ms at TA 25°C
Junction / storage range	−50 to +150°C	Absolute limits

Surge ratings apply to specified waveforms and are not repetitive load-current targets.

Electrical characteristics

Test conditions remain attached to each figure

Manufacturer specifications 6 parameters

Parameter	Value	Conditions / notes
Instantaneous forward voltage	1.1 V maximum	IF = 1 A
DC reverse leakage at 25°C	5 µA maximum	Rated DC blocking voltage
DC reverse leakage at 125°C	50 µA maximum	Rated DC blocking voltage
Junction capacitance	15 pF typical	Reverse 4 V; frequency 1 MHz
Full-load average reverse current	30 µA maximum	Full cycle; TL 75°C; 9.5 mm lead length
Reverse recovery	No trr guarantee in this reference	Use a specified fast-recovery part where required

The 0.7 V example model is not the datasheet maximum at 1 A.

Package and thermal conditions

DO-41 outline and mounting

Manufacturer specifications 7 parameters

Parameter	Value	Conditions / notes
Body length	4.1–5.2 mm	Manufacturer outline
Body diameter	2.0–2.7 mm	Manufacturer outline
General outline lead diameter	0.71–0.86 mm	Check the exact ordered suffix and drawing note
Straight lead length	At least 25.4 mm each end	Before forming and trimming
Junction-to-ambient resistance	50°C/W typical	9.5 mm lead length, PCB mounted
Junction-to-lead resistance	25°C/W typical	Same stated mounting reference
Assembly review	Lead bend and copper affect heat flow	Authored land pattern must be checked for the actual part

A 1 A current rating does not remove the need for a temperature-rise calculation.

Isolated 9 V AC half-wave circuit

No mains connection and no reservoir capacitor

Manufacturer specifications 6 parameters

Parameter	Value	Conditions / notes
AC source	9 V RMS, 60 Hz sine	Isolated laboratory low-voltage source
Anode A2	AC source active terminal	Other source terminal is common return
Cathode K1	Positive output node	Band faces the load
Load resistor	1 kΩ, at least 0.25 W	From output to source return
Diode model	Fixed 0.7 V forward drop	Illustrative approximation
Output waveform	One positive pulse per AC cycle	Negative half-cycle blocked; no smoothing

Changing to a capacitor-input rectifier changes peak charging current and the required analysis.

Example waveform calculations

For the stated fixed-drop model

Manufacturer specifications 7 parameters

Parameter	Value	Conditions / notes
Input peak	Approximately 12.73 V	9 × √2
Output peak	Approximately 12.03 V	Input peak minus 0.7 V
Peak load current	Approximately 12.03 mA	Output peak / 1 kΩ
Conduction onset angle	Approximately 3.15°	asin(0.7 / 12.73)
Average output	Approximately 3.71 V	Integrated clipped sine; not a regulated DC output
Output relation	max(12.73 sin(ωt) − 0.7, 0)	Positive direction and fixed-drop approximation
Ripple repetition	60 Hz	One pulse per 60 Hz input cycle

All readings are explanatory calculations, not live measurements.

Practical selection checks

Current, voltage and speed must all fit

Manufacturer specifications 6 parameters

Parameter	Value	Conditions / notes
Reverse-voltage margin	Compare with the actual waveform	Include transients and capacitor charging topology
Average and peak current	Check both	Capacitor charging can create narrow high-current pulses
Temperature	Use loss and mounting conditions	Copper and lead length affect cooling
High-frequency converters	Use an appropriately specified diode	General-purpose rectification does not imply fast recovery
Inductive loads	Choose a suitable flyback path	Verify surge energy, turn-off needs and diode current
SMD alternatives	Separate orderable devices	Do not relabel a different package as the same selected part

The page keeps the selected axial reference distinct from faster or differently packaged relatives.

Low-frequency rectifiers

Convert alternating polarity to a pulsating unidirectional output.

Manufacturer application guide

Reverse-polarity paths

Use with a suitable current and voltage budget.

Manufacturer application guide

Low-speed freewheeling

Check the load current, stored energy and required release time.

Manufacturer application guide

Take it into ProTech

Find 1N4007 in the Components Library to place its schematic symbol and connect its pins.

Reference page · circuit simulation model not yet availableOpen ProTech