1N4954 Datasheet, PDF (1/2 Pages) Semtech Corporation – 5 WATT VOLTAGE REGULATOR

www.eicsemi.com
1N4954 ~ 1N4989
SILICON ZENER DIODE
VZ : 6.8 - 200 Volts
PD : 5 Watts
DO-15
FEATURES :
* Glass passivated junction chip
* High peak reverse power dissipation
* High reliability
* Low leakage current
* Pb Free/RoHS Compliant
0.140 (3.6)
0.104 (2.6)
1.00 (25.4)
MIN.
0.300 (7.6)
0.230 (5.8)
MECHANICAL DATA :
* Case : DO-15 Molded plastic
* Epoxy : UL94V-0 rate flame retardant
* Lead : Axial lead solderable per MIL-STD-202,
Method 208 guaranteed
* Polarity : Color band denotes cathode end
* Mounting position : Any
* Weight : 0.4 gram
0.034 (0.86)
0.028 (0.71)
1.00 (25.4)
MIN.
Dimensions in inches and ( millimeters )
MAXIMUM RATINGS
Rating at 25 °C ambient temperature unless otherwise specified.
Rating
Symbol
DC Power Dissipation
Maximum Forward Voltage at IF = 1 A
Thermal Resistance Junction to Lead (Note 1)
Operating Junction Temperature Range
Storage Temperature Range
PD
V_F
R_Ó¨JL
TJ
T_STG
Note :
(1) At 3/8 inch (10 mm) from body
FIG. - 1 POWER DERATING CURVE
Value
5.0
1.5
22
- 65 to + 175
- 65 to + 175
Unit
W
V
°C/W
°C
°C
Page 1 of 2
8
7
6
5
L = 3/8"
4
3
2
1
L = Lead Length from Body
0
0
25 50 75 100 125 150 175
LEAD TEMPERATURE , (°C)
Rev. 01 : October 28, 2008