MOTOROLA
SEMICONDUCTOR
TECHNICAL DATA
500 mW DO-35 Glass
Zener Voltage Regulator Diodes
GENERAL DATA APPLICABLE TO ALL SERIES IN
THIS GROUP
1N4678
SERIES
500 mW
DO-35 GLASS
GLASS ZENER DIODES
500 MILLIWATTS
1.8–200 VOLTS
500 Milliwatt
Hermetically Sealed
Glass Silicon Zener Diodes
Specification Features:
•
Complete Voltage Range — 1.8 to 200 Volts
•
DO-204AH Package — Smaller than Conventional DO-204AA Package
•
Double Slug Type Construction
•
Metallurgically Bonded Construction
Mechanical Characteristics:
CASE:
Double slug type, hermetically sealed glass
MAXIMUM LEAD TEMPERATURE FOR SOLDERING PURPOSES:
230°C, 1/16″ from
case for 10 seconds
FINISH:
All external surfaces are corrosion resistant with readily solderable leads
POLARITY:
Cathode indicated by color band. When operated in zener mode, cathode
will be positive with respect to anode
MOUNTING POSITION:
Any
WAFER FAB LOCATION:
Phoenix, Arizona
ASSEMBLY/TEST LOCATION:
Seoul, Korea
MAXIMUM RATINGS
(Motorola Devices)*
Rating
DC Power Dissipation and TL
≤
75°C
Lead Length = 3/8″
Derate above TL = 75°C
Operating and Storage Temperature Range
* Some part number series have lower JEDEC registered ratings.
CASE 299
DO-204AH
GLASS
Symbol
PD
Value
500
4
Unit
mW
mW/°C
°C
TJ, Tstg
– 65 to +200
PD , MAXIMUM POWER DISSIPATION (WATTS)
0.7
0.6
0.5
0.4
3/8”
3/8”
HEAT
SINKS
0.3
0.2
0.1
0
0
20
40
60
80
100
120
140
160
180 200
TL, LEAD TEMPERATURE (°C)
Figure 1. Steady State Power Derating
Motorola TVS/Zener Device Data
500 mW DO-35 Glass Data Sheet
6-1
TAK_CHEONG [ Tak Cheong Electronics (Holdings) Co.,Ltd ]
