1N4149 Small Signal Diode

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1N4149 Small Signal Diode

December 2004

1N4149
Small Signal Diode

DO-35
Color Band Denotes Cathode

Absolute Maximum Ratings T
Symbol
VRRM IF(AV) IFSM

a

25 C unless otherwise noted

Parameter
Maximum Repetitive Reverse Voltage Average Rectified Forward Current Non-repetitive Peak Forward Surge Current Pulse Width 1.0 second Pulse Width 1.0 microsecond Storage Temperature Range Operating Junction Temperature

Value
100 500 1.0 4.0 -65 to 200 175

Unit
V mA A A C C

TSTG TJ

These ratings are limiting values above which the serviceability of the diode may be impaired. NOTES: 1) These ratings are based on a maximum junction temperature of 200 degrees C. 2) These are steady limits. The factory should be consulted on applications involving pulsed or low duty cycle operations.

Thermal Characteristics
Symbol
PD RJA Power Dissipation Thermal Resistance, Junction to Ambient
TC 25 C unless otherwise noted

Parameter

Value
500 300

Unit
mW C/W

Electrical Characteristics
Symbol
VR VF IR CT trr Breakdown Voltage Forward Voltage Reverse Leakage Total Capacitance

Parameter
IR 5 A IR 100 A IF 10mA

Conditions

Min.
75 100

Max

Units
V V

1.0 25 50 2 4

V nA A pF ns

VR 20V VR 20V, TA 150 C VR 0, f 1.0MHz IF 10mA, VR 6.0V RL 100, Irr 1mA

Reverse Recovery Time

2004 Fairchild Semiconductor Corporation

1

www.fairchildsemi.com

1N4149 Rev. A

1N4149 Datasheet Fairchild Download PDF

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1N4149 DATASHEET