# 2N4149 SCR

## Features

· Voltage Ratings: Up to 400V
· Maximum Gate Trigger Current: 200µA
· Hermetically Sealed TO-18 Metal Can
· Planar Passivated Construction

## Absolute Maximum Ratings

· Repetitive Peak Off-State Voltage (VDBM): 200V
· Repetitive Peak Reverse Voltage (VRRM): 200V
· On-State Current (Ir): 250mA
· Repetitive Peak On-State Current (ITRM): 0.5A
· Peak One Cycle Surge Current (ITSU): Up to 30A
· Peak Gate Current (IGM): 250mA
· Average Gate Current (IS(AV)): 25mA
· Reverse Gate Voltage (VGR): 6V
· Storage Temperature Range: -65°C to +150°C
· Operating Temperature Range: -65°C to +125°C

## Mechanical Specifications

· Package: TO-18
· Dimensions: See Datasheet

## Electrical Specifications (at 25°C unless noted)

· Off-State Current: 0.4 mA
· Reversing Current: 10.0 mA
· Gate Trigger Current (IGT): 10 µA
· Gate Trigger Voltage (VGT): 15 V
· Peak On-State Voltage (VTM): 0.55V
· Holding Current (IH): 10 mA
· Turn-on Time (ton): 8.0 µs
· Circuit Commutated Turn-off Time (toff): 15.0 µs
· Typical Values:
- DRM: 5.0
- RRM: 10.0
· Maximum Values:
- 50
- 100
- 500
· Test Conditions: Refer to datasheet for specific conditions associated with each parameter.

## Notes

· Blocking voltage ratings apply over the full operating temperature range with proper gate biasing (resistor of 1000 ohms or smaller).