SMTPB SERIES
TRISIL
TM
August 1999 - Ed: 2C
SCHEMATIC DIAGRAM
BIDIRECTIONAL CROWBAR PROTECTION.
BREAKDOWN VOLTAGE RANGE:
From 62 V To 270 V.
HOLDING CURRENT: I
H
= 150 mA min
REPETITIVE PEAK PULSE CURRENT :
I
PP
= 100 A, 10/1000
s.
FEATURES
SMC
The SMTPBxx series has been designed to protect
telecommunication equipment against lightning
and transient induced by AC power lines.
DESCRIPTION
COMPLIES WITH THE
FOLLOWING STANDARDS:
Peak Surge
Voltage
(V)
Voltage
Waveform
(
s)
Current
Waveform
(
s)
Admissible
Ipp
(A)
Necessary
Resistor
(
)
CCITT K20
4000
10/700
5/310
100
-
VDE0433
4000
10/700
5/310
100
-
VDE0878
4000
1.2/50
1/20
100
-
IEC-1000-4-5
level 4
level 4
10/700
1.2/50
5/310
8/20
100
100
-
-
FCC Part 68, lightning surge
type A
1500
800
10/160
10/560
10/160
10/560
200
100
-
-
FCC Part 68, lightning surge
type B
100
5/320
5/320
25
-
BELLCORE TR-NWT-001089
First level
2500
1000
2/10
10/1000
2/10
10/1000
500
100
-
-
BELLCORE TR-NWT-001089
Second level
500
2/10
2/10
500
-
CNET l31-24
4000
0.5/700
0.8/310
100
-
Any sensitive equipment requiring protection
against lightning strikes:
ANALOG AND DIGITAL LINE CARDS
MAIN DISTRIBUTION FRAMES
TERMINALS AND TRANSMISSION EQUIPMENT
GMS-TUBE REPLACEMENT
MAIN APPLICATIONS
NO AGEING AND NO NOISE
IF DESTROYED, THE SMTPB FALLS INTO
SHORT CIRCUIT, STILL ENSURING
PROTECTION
BENEFITS
1/5
Symbol
Parameter
Value
Unit
R
th
(j-l)
Junction to leads
20
C/W
R
th
(j-a)
Junction to ambient.
On printed circuit with standard footprint dimensions.
75
C/W
THERMAL RESISTANCES
Symbol
Parameter
V
RM
Stand-off voltage
I
RM
Leakage current at stand-off voltage
V
R
ContinuousReverse voltage
V
BR
Breakdown voltage
V
BO
Breakover voltage
I
H
Holding current
I
BO
Breakover current
I
PP
Peak pulse current
C
Capacitance
ELECTRICAL CHARACTERISTICS (T
amb
= 25
C)
Type
Marking
I
RM
@ V
RM
I
R
@ V
R
V
BO
@ I
BO
I
H
C
max.
max.
note1
max.
note2
max.
min.
note3
typ.
note4
Laser
A
V
A
V
V
mA
mA
pF
SMTPB62
SMTPB68
SMTPB120
SMTPB200
SMTPB270
W07
W11
W21
W31
W43
2
2
2
2
2
56
61
108
180
243
50
50
50
50
50
62
68
120
200
270
82
90
160
267
360
800
800
800
800
800
150
150
150
150
150
160
160
140
130
120
All parameters tested at 25
C, except where indicated.
Symbol
Parameter
Value
Unit
P
Power dissipation
T
lead
= 50
C
5
W
I
PP
Peak pulse current
10/1000
s
8/20
s
2/10
s
100
250
500
A
I
TSM
Non repetitive surge peak on-state
current
tp = 20 ms
50
A
dV/dt
Critical rate of rise of off-state voltage
V
RM
5
KV/
s
T
stg
T
j
Storage temperature range
Maximum junction temperature
- 55 to + 150
+ 150
C
C
T
L
Maximum lead temperature for soldering during 10 s.
+ 260
C
ABSOLUTE MAXIMUM RATINGS (T
amb
= 25
C)
Note 1:
IR measured at VR guarantees VBRmin
VR
Note 2:
Measured at 50 Hz (1 cycle) - See test circuit 1.
Note 3:
See test circuit 2.
Note 4:
VR = 1V, F = 1MHz. Refer to fig 3 for C versus VR.
SMTPBxxx
2/5
TEST CIRCUIT 1 FOR I
BO
and V
BO
parameters:
TEST PROCEDURE :
Pulse Test duration (tp = 20ms):
- For Bidirectional devices = Switch K is closed
- For Unidirectional devices = Switch K is open.
V
OUT
Selection
- Device with V
BO
<
200 Volt
- V
OUT
= 250 V
RMS
, R
1
= 140
.
- Device with V
BO
200 Volt
- V
OUT
= 480 V
RMS
, R
2
= 240
.
TEST CIRCUIT 2 for I
H
parameter.
This is a GO-NOGO Test which allows to confirm the holding current (I
H
) level in a functional
test circuit.
TEST PROCEDURE :
1) Adjust the current level at the I
H
value by short circuiting the AK of the D.U.T.
2) Fire the D.U.T with a surge Current : Ipp = 10A , 10/1000
s.
3) The D.U.T will come back off-state within 50 ms max.
R
- V
P
V
BAT
= - 48 V
Surge generator
D.U.T.
220V
static
relay.
R1
R2
240
140
D.U.T
V BO
measure
IBO
measure
tp = 20ms
K
Transformer
220V/800V
5A
Auto
Transformer
220V/2A
Vout
SMTPBxxx
3/5
Fig. 1: Non repetitive surge peak on-state current
versus overload duration (Tj initial=25
C).
2.0
2.2
2.4
2.6
2.8
3.0
3.2
3.4
3.6
3.8
4.0
1
10
50
I (A)
T
Tj=25
C
V (V)
T
Fig. 4: On-state voltage versus on-state current
(typical values).
Fig. 3: Relative variation of junction capacitance
versus reverse applied voltage(typical values).
Note: For V
RM
upper than 56V, the curve is
extrapolated(dotted line).
Fig. 2: Relative variation of holding current versus
junction temperature.
Fig. 5: Transient thermal impedance junction to
ambient versus pulse duration (for FR4 PC Board
with recommended pad layout).
SMTPBxxx
4/5
PACKAGE MECHANICAL DATA.
SMC
REF.
DIMENSIONS
Millimeters
Inches
Min.
Max.
Min.
Max.
A1
1.90
2.45
0.075
0.096
A2
0.05
0.20
0.002
0.008
b
2.90
3.2
0.114
0.126
c
0.15
0.41
0.006
0.016
E
7.75
8.15
0.305
0.321
E1
6.60
7.15
0.260
0.281
E2
4.40
4.70
0.173
0.185
D
5.55
6.25
0.218
0.246
L
0.75
1.60
0.030
0.063
E
C
L
E2
E1
D
A1
A2
b
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of
use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by
implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to
change without notice. This publication supersedes and replaces all information previously supplied.
STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written ap-
proval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics
1999 STMicroelectronics - Printed in Italy - All rights reserved.
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Packaging : Standardpackaging is in tapeand reel
Weight : 0.25g.
FOOTPRINT DIMENSIONS (in millimeters)
SMC
2.0
4.2
2.0
3.3
ORDER CODE
SM
TPB 100
TRISIL PROTECTION 100 A
VOLTAGE
SURFACE MOUNT
Marking : Logo, date code, type code.
SMTPBxxx
5/5
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