SMAJ 5.0C ~ 188CA
Stand-off Voltage :
5.0 to 188V
Peak Pulse Power :
400 W
FEATURES :
* 400W peak pulse power capability with a 10/1000µs
waveform
* Optimized for LAN protection applications
* Low clamping
* Very fast response time
* Pb / RoHS Free
SURFACE MOUNT
BI-DIRECTIONAL TRANSIENT
VOLTAGE SUPPRESSOR
SMA (DO-214AC)
5.0
±
0.15
4.5
±
0.15
1.1
±
0.3
1.2
±
0.2
2.6
±
0.15
2.1
±
0.2
0.2
±
0.07
MECHANICAL DATA
* Case : SMA Molded plastic
* Epoxy : UL94V-O rate flame retardant
* Lead : Lead Formed for Surface Mount
* Mounting position : Any
* Weight : 0.064 grams
2.0
±
0.2
Dimensions in millimeter
DEVICES FOR UNIPOLAR APPLICATIONS
For uni-directional without "C"
Electrical characteristics apply in both directions
MAXIMUM RATINGS
Rating at 25
°
C ambient temperature unless otherwise specified.
Rating
Peak Pulse Power Dissipation (Note1,2) Fig. 4
Peak Pulse Current on 10/1000µs
waveform (Note 1, Fig. 1)
Operating Junction and Storage Temperature Range
Symbol
P
PPM
I
PPM
T
J
, T
STG
Value
Minimum 400
See Table
- 55 to + 150
Units
W
A
°C
Notes :
(1) Non-repetitive Current pulse, per Fig. 3 and derated above Ta = 25
°
C per Fig. 1
(2) Mounted on 0.2 x 0.2" (5.0 x 5.0 mm) copper pads to each terminal.
(3) 8.3ms single half sine-wave duty cycle=4 pulses per minutes maximum.
Page 1 of 4
Rev. 05 : March 31, 2005
RATING AND CHARACTERISTIC CURVES ( SMAJ5.0C - SMAJ188CA )
FIG.1 - PULSE DERATING CURVE
6,000
FIG.2 - TYPICAL JUNCTION CAPACITANCE
T
J
= 25
°
C
f = 1.0 MHz
Vsig = 50 mV
P-P
1,000
PEAK PULSE POWER OR CURRENT
DERATING IN PERCENTAGE
120
100
80
60
C
J
, CAPACITANCE, pF
100
40
Measured at
Stand-off Voltage
Voltage V
WM
20
0
0
25
50
75
100
125
150
175
10
1
2
10
20
100
200
Ta, AMBIENT TEMPERATURE, (
°
C)
V
WM
, REVERSE STAND-OFF VOLTAGE, (V)
FIG.3 - PULSE WAVEFORM
I
PPM
, PEAK PULSE CURRENT, %
tr = 10µs
100
Peak Value
I
PPM
Ta=25
°C
Pulse Width (td) is defined
as that point where the peak
current decays to 50%
of I
PPM
10
FIG.4 - PEAK PULSE POWER RATING CURVE
P
PPM
,PEAK POWER (kW)
NON-REPETITIVE
PULSE WAVEFORM
SHOW IN FIG. 3 ,Ta=25°C
10
SMAJ5.0A -
SMAJ78CA
50
Half Value - I
PPM
2
10/1000
µs.
Waveform as
defined by R.E.A.
1.0
SMAJ85A -
SMAJ188CA
0.1
0.1µs
td
0
0
1.0
2.0
3.0
4.0
1.0µs
10µs
100µs
1.0ms
10ms
t, TIME(ms)
td, PULSE WIDTH, SEC
Page 4 of 4
Rev. 05 : March 31, 2005
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