LESHAN RADIO COMPANY, LTD.
SA Series
GLASS PASSIVATED JUNCTION TRANSIENT VOLTAGE SUPPRESSOR
VOLTAGE - 6.8 TO 440 Volts
500Watt Peak Power
3.0 Watt Steady State
1.Feature
* Plastic package has Underwriters Laboratory
Flammability Classification 94V-O
* Glass passivated chip junction in DO-15 package
* 500W surge capability at 1ms
* Excellent clamping capability
* Low zener impedance
* Fast response time: typically less
than 1.0 ps from 0 volts to BV min
* Typical IR less than 1µA above 10V
* High temperature soldering guaranteed:
260 /10 seconds/.375”,(9.5mm) lead
length/5lbs., (2.3kg) tension
2.Mechanical Data
Case:
JEDEC DO-15 molded plastic
Terminals:
Axial leads, solderable per
MIL-STD-202, Method 208
Polarity:
Color band denoted cathode
except Bipolar
Mounting Position:
Any
Weight:
0.015 ounce, 0.4 gram
We declare that the material of product
compliance with RoHS requirements.
DEVICES FOR BIPOLAR APPLICATIONS
For Bidirectional use C or CA Suffix for types SA5.0A thru types SA180A
Electrical characteristics apply in both directions.
3.Electrical Characteristic
Ratings at 25°C ambient temperature unless otherwise specified.
Single phase, half wave, 60Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
RATING
Peak Power Dissipation at T
A
=25°C, T
P
=1ms(Note 1)
Steady State Power Dissipation at T
L
=75°C
Lead Lengths .375”,(9.5mm) (Note 2)
Peak Forward Surge Current, 8.3ms Single Half Sine-
Wave Superimposed on Rated Load(JECED Method) (Note 3)
Operating and Storage Temperature Range
SYMBOL
P
PPM
P
M(AV)
I
FSM
T
J
,T
STG
VALUE
Minimum 500
3.0
70
-50 to +150
UNITS
Watts
Watts
Amps
°C
NOTES:
1. Non-repetitive current pulse, per Fig. 3 and derated above TA=25°C per Fig. 2.
2. Mounted on Copper Leaf area of 1.57in2(40mm2).
3. 8.3ms single half sine-wave, duty cycle= 4 pulses per minutes maximum.
1/4
LESHAN RADIO COMPANY, LTD.
4.Ratings and Characteristic Curves
( TA = 25°C unless otherwise noted )
Fig. 1-Peak Pulse Power Rating Curve
Non-Repetive
Pulse Waveform
Shown in Fig.3
TA=25°C
Fig. 2-Pulse Derating Curve
Peak Pulse Power(P
PP
) or current(I
PP
)
Derating in percentage %
125
100
100
P
PPM
, Peak Pulse Power,KW
10
50
1.0
0.1
0.1
0
1.0
10
100
1000
td,Pulse Width,µsec
10000
0
25
50 100 125 150 175 200
TA,Ambient Temperature,°C
Fig. 4-Typical Junction Capacitance
Unidirectional
10000
Cj, Capacitance,pF
meansured at
Zero Bias
150
I
PPM
, Peak Pulse Current %
Fig. 3-Pulse Waveform
TA=25℃
Test Waveform
tf=10µs td=1000µs
tf=10µs
100
Peak Value
Ippm
1000
meansured at
stand-off voltage
VRMW
Half Value
Ipp/2=td
50
10/1000µs Waveform
as deffused by R.E.A
100
TJ = 25°C
f = 1.0 MHz
Vsig = 50mVp-p
0
0
1.0
2.0
t,Time,ms
3.0
10
1.0
10
100
1000
V
(WM),
Reverse Stand-off Voltage,Voltage
Fig. 6-Maximum Non-Repetitive Peak
Forward Surge Current Uniderictional
P
m(AV)
Steady State Power Dissipation,Watts
Fig. 5-Steady State Power
Derating Curve
I
FSM
, Forward Surge Current,Amperes
100
3.00
0.375"(9.5mm)
1.50
TJ = TJ max
8.3ms Single Half Sine-wave
(JEDEC Method)
20mm*20mm*1mm
0.00
0
25
50 75 100 125 150
TL,Lead Temperature,°C
175
10
1
10
Number of Cycles At 60 Hz
100
3/4
Discrete Device
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