Product Overview
The 2CL77 High Voltage Rectifier Diode is a high-performance 20kV silicon high voltage diode designed for high voltage rectification, voltage multiplier circuits, and pulse power applications.
With a 20,000V repetitive peak reverse voltage (VRRM), 5mA average forward current capability, low reverse leakage current, and fast recovery characteristics, the 2CL77 provides stable and reliable operation in demanding high voltage environments.
The device adopts a plastic molded axial structure with high reliability encapsulation technology, offering excellent insulation performance, compact dimensions, and long service life. It is widely used in high voltage power supplies, X-ray equipment, laser systems, microwave high voltage circuits, CRT high voltage applications and Cockcroft-Walton voltage multipliers.
Main Features
20kV High Voltage Capability
* Repetitive Peak Reverse Voltage: 20kV
* Designed for high voltage DC rectification
* Suitable for series connection in high voltage multiplier circuits
Fast Recovery Characteristics
* Reverse Recovery Time: 80ns
* Supports high frequency switching applications
* Reduces switching losses in high voltage circuits
Low Reverse Leakage Current
* Maximum Reverse Current: 2μA
* Improves efficiency and voltage stability
* Suitable for precision high voltage equipment
High Surge Current Resistance
* Maximum Forward Surge Current: 0.5A
* Strong transient current withstand capability
Compact High Voltage Package
* Axial lead structure
* Small size and easy installation
* Suitable for compact high voltage modules
Electrical Characteristics
Conditions: Ta = 25°C unless otherwise specified
|
Parameter |
Symbol |
Value |
Unit |
|
Repetitive Peak Reverse Voltage |
VRRM |
20 |
kV |
|
Average Forward Current |
IF(AV) |
5 |
mA |
|
Maximum Forward Surge Current |
IFSM |
0.5 |
A |
|
Maximum Forward Voltage Drop |
VFM |
62.5 |
V |
|
Maximum Reverse Current |
IRRM |
2 |
μA |
|
Reverse Recovery Time |
trr |
0.08 |
μs |
|
Maximum Junction Temperature |
Tj |
120 |
°C |
|
Storage Temperature Range |
Tstg |
-40 ~ +120 |
°C |
Mechanical Dimensions
|
Package outline dimensions |
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Absolute Maximum Ratings
|
Item |
Rating |
|
VRRM |
20kV |
|
IF(AV) |
5mA |
|
IFSM |
0.5A |
|
Junction Temperature |
120°C |
|
Storage Temperature |
-40°C ~ +120°C |
Typical Applications
High Voltage Power Supply
The 2CL77 is widely applied in:
* High voltage DC power supplies
* Capacitor charging circuits
* High voltage transformer rectification
* Industrial electronic equipment
01
X-Ray High Voltage Generator
Suitable for:
* X-ray tube power supply
* Medical imaging equipment
* Industrial inspection systems
02
Laser Power Supply
Used in laser systems requiring:
* Stable high voltage output
* Low leakage current
* Fast switching response
03
Microwave High Voltage Circuit
Applications include:
* Microwave emission power systems
* Magnetron high voltage supply
* High voltage rectifier circuits
04
Voltage Multiplier Circuit
The 2CL77 is commonly used in:
* Cockcroft-Walton multiplier circuits
* High voltage cascade generators
* Pulse voltage generators
05
Product Advantages
|
Advantage |
Benefit |
|
20kV Reverse Voltage |
Handles high voltage insulation requirements |
|
5mA Forward Current |
Suitable for compact HV applications |
|
80ns Recovery Time |
High frequency operation capability |
|
Low Leakage Current |
Improves system reliability |
|
Small Axial Package |
Easy PCB and module integration |
|
High Reliability |
Encapsulation Long operating life |
2CL77 vs Similar Models
|
Type |
Rated Values |
Temp. Condition |
Electrical Characteristic |
Dimension |
|||||
|
VRRM |
IF(AV) |
IFSM |
Tj |
Tstg |
VFM |
IR1 |
Trr |
Φbody*L, Φlead |
|
|
[IFM=10mA] |
[VR=VRRM] |
[IF=2mA IRM=4mA] |
|||||||
|
KV |
mA |
A |
℃ |
℃ |
V |
μA |
μS |
mm |
|
|
2CL703 |
3 |
5 |
0.5 |
120 |
-40~+120 |
12 |
2 |
0.08 |
Φ2.5*5/Φ0.5 |
|
2CL704 |
4 |
5 |
0.5 |
120 |
-40~+120 |
15 |
2 |
0.08 |
Φ2.5*5/Φ0.5 |
|
2CL70 |
6 |
5 |
0.5 |
120 |
-40~+120 |
20 |
2 |
0.08 |
Φ3*8/Φ0.6 |
|
2CL71 |
8 |
5 |
0.5 |
120 |
-40~+120 |
25 |
2 |
0.08 |
Φ3*8/Φ0.6 |
|
2CL72 |
10 |
5 |
0.5 |
120 |
-40~+120 |
30 |
2 |
0.08 |
Φ3*10/Φ0.6 |
|
2CL73 |
12 |
5 |
0.5 |
120 |
-40~+120 |
37.5 |
2 |
0.08 |
Φ3*10/Φ0.6 |
|
2CL74 |
14 |
5 |
0.5 |
120 |
-40~+120 |
42.5 |
2 |
0.08 |
Φ3*10/Φ0.6 |
|
2CL75 |
16 |
5 |
0.5 |
120 |
-40~+120 |
50 |
2 |
0.08 |
Φ3*12/Φ0.6 |
|
2CL76 |
18 |
5 |
0.5 |
120 |
-40~+120 |
56 |
2 |
0.08 |
Φ3*12/Φ0.6 |
|
2CL77 |
20 |
5 |
0.5 |
120 |
-40~+120 |
62.5 |
2 |
0.08 |
Φ3*12/Φ0.6 |
OEM / Custom Service
We provide professional high voltage diode customization:
✔ Voltage range customization: 3kV–100kV
✔ Current rating customization
✔ Package structure customization
✔ OEM / ODM production
✔ High voltage rectifier solutions
Related 2CL77 Series Applications
Recommended industries:
* X-Ray equipment manufacturers
* Laser equipment manufacturers
* Microwave power supply manufacturers
* High voltage power supply designers
* Electrostatic equipment manufacturers
* Scientific research instruments
2CL77 is a reliable 20kV high voltage rectifier diode solution for engineers requiring compact size, fast recovery performance and stable high voltage operation in industrial electronic systems.
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