MOTOROLA
SEMICONDUCTOR
TECHNICAL DATA
Motorola TVS/Zener Device Data
6-43
1–3 Watt DO-41 Surmetic 30 Data Sheet
1 to 3 Watt DO-41 Surmetic 30
Zener Voltage Regulator Diodes
GENERAL DATA APPLICABLE TO ALL SERIES IN
THIS GROUP
1 to 3 Watt Surmetic 30
Silicon Zener Diodes
. . . a complete series of 1 to 3 Watt Zener Diodes with limits and operating characteristics
that reflect the superior capabilities of silicon-oxide-passivated junctions. All this in an
axial-lead, transfer-molded plastic package offering protection in all common environmen-
tal conditions.
Specification Features:
• Surge Rating of 98 Watts @ 1 ms
• Maximum Limits Guaranteed On Up To Six Electrical Parameters
• Package No Larger Than the Conventional 1 Watt Package
Mechanical Characteristics:
CASE: Void-free, transfer-molded, thermosetting plastic
FINISH: All external surfaces are corrosion resistant and leads are readily solderable
POLARITY: Cathode indicated by color band. When operated in zener mode, cathode
will be positive with respect to anode
MOUNTING POSITION: Any
WEIGHT: 0.4 gram (approx)
WAFER FAB LOCATION: Phoenix, Arizona
ASSEMBLY/TEST LOCATION: Seoul, Korea
MAXIMUM RATINGS
Rating Symbol Value Unit
DC Power Dissipation @ T
L
= 75°C
Lead Length = 3/8″
Derate above 75°C
P
D
3
24
Watts
mW/°C
DC Power Dissipation @ T
A
= 50°C
Derate above 50°C
P
D
1
6.67
Watt
mW/°C
Operating and Storage Junction Temperature Range T
J
, T
stg
– 65 to +200 °C
GENERAL
DATA
CASE 59-03
DO-41
PLASTIC
1–3 WATT
DO-41
SURMETIC 30
1 TO 3 WATT
ZENER REGULATOR
DIODES
3.3–400 VOLTS
Figure 1. Power Temperature Derating Curve
T
L
, LEAD TEMPERATURE (°C)
P
, MAXIMUM DISSIP
A
TION (W
A
TTS)
D
0 20 40 60 20080 100 120 140 160 180
0
1
2
3
4
5
L = 1/8″
L = 3/8″
L = 1″
L = LEAD LENGTH
TO HEAT SINK