1/6
BZW04-5V8/376
BZW04-5V8B/376B
TRANSIL
TM
s
PEAK PULSE POWER : 400 W (10/1000
s)
s
STAND-OFF VOLTAGE RANGE :
From 5.8V to 376 V
s
UNI AND BIDIRECTIONAL TYPES
s
LOW CLAMPING FACTOR
s
FAST RESPONSE TIME
s
UL RECOGNIZED
FEATURES
DO-15
Symbol
Parameter
Value
Unit
P
PP
Peak pulse power dissipation (see note 1)
Tj initial = Tamb
400
W
P
Power dissipation on infinite heatsink
T
amb
= 75C
1.7
W
I
FSM
Non repetitive surge peak forward current
for unidirectional types
tp = 10ms
Tj initial = T
amb
30
A
T
stg
T
j
Storage temperature range
Maximum junction temperature
- 65 to + 175
175
C
C
T
L
Maximum lead temperature for soldering during 10s a 5mm
from case.
230
C
Note 1 : For a surge greater than the maximum values, the diode will fail in short-circuit.
ABSOLUTE MAXIMUM RATINGS (T
amb
= 25C)
DESCRIPTION
Transil diodes provide high overvoltage protection
by clamping action. Their instantaneous response
to transient overvoltages makes them particu-
larly suited to protect voltage sensitive devices
such as MOS Technology and low voltage sup-
plied IC's.
February 2003- Ed : 3A
Symbol
Parameter
Value
Unit
R
th (j-l)
Junction to leads
60
C/W
R
th (j-a)
Junction to ambient on printed circuit.
L
lead
= 10 mm
100
C/W
THERMAL RESISTANCES
BZW04-xx
2/6
I
I F
V F
V
VCL
VBR
VRM
I PP
I RM
V
Symbol
Parameter
V
RM
Stand-off voltage
V
BR
Breakdown voltage
V
CL
Clamping voltage
I
RM
Leakage current @ V
RM
I
PP
Peak pulse current
T
Voltage temperature coefficient
V
F
Forward voltage drop
ELECTRICAL CHARACTERISTICS (T
amb
= 25C)
Types
I
RM
@ V
RM
V
BR
@
I
R
V
CL
@ I
PP
V
CL
@ I
PP
T
C
max
min
max
max
max
typ
note2
10/1000
s
8/20
s
note3
note4
Unidirectional
Bidirectional
A
V
V
mA
V
A
V
A
10
-4
/C
pF
BZW04-5V8
BZW04-5V8B
1000
5.8
6.45
10
10.5
38.0
13.4
174
5.7
3500
BZW04-6V4
BZW04-6V4B
500
6.4
7.13
10
11.3
35.4
14.5
160
6.1
3100
BZW04-8V5
BZW04-8V5B
10
8.5
9.5
1
14.5
27.6
18.6
124
7.3
2000
BZW04-10
BZW04-10B
5
10.2
11.4
1
16.7
24.0
21.7
106
7.8
1550
BZW04-13
BZW04-13B
5
12.8
14.3
1
21.2
19.0
27.2
85
8.4
1200
BZW04-15
BZW04-15B
1
15.3
17.1
1
25.2
16.0
32.5
71
8.8
975
BZW04-19
BZW04-19B
1
18.8
20.9
1
30.6
13.0
39.3
59
9.2
800
BZW04-20
BZW04-20B
1
20.5
22.8
1
33.2
12.0
42.8
54
9.4
725
BZW04-23
BZW04-23B
1
23.1
25.7
1
37.5
10.7
48.3
48
9.6
625
BZW04-26
BZW04-26B
1
25.6
28.5
1
41.5
9.6
53.5
43
9.7
575
BZW04-28
BZW04-28B
1
28.2
31.4
1
45.7
8.8
59.0
39
9.8
510
BZW04-31
BZW04-31B
1
30.8
34.2
1
49.9
8.0
64.3
36
9.6
480
BZW04-33
BZW04-33B
1
33.3
37.1
1
53.9
7.4
69.7
33
10.0
450
BZW04-40
BZW04-40B
1
40.2
44.7
1
64.8
6.2
84
27
10.1
370
BZW04-48
BZW04-48B
1
47.8
53.2
1
77.0
5.2
100
23
10.3
320
BZW04-58
BZW04-58B
1
58.1
64.6
1
92.0
4.3
121
19
10.4
270
BZW04-70
BZW04-70B
1
70.1
77.9
1
113
3.5
146
16.0
10.5
230
BZW04-85
BZW04-85B
1
85.5
95.0
1
137
2.9
178
13.0
10.6
200
BZW04-102
BZW04-102B
1
102
114
1
165
2.4
212
11.0
10.7
170
BZW04-128
BZW04-128B
1
128
143
1
207
2.0
265
9.0
10.8
145
BZW04-154
BZW04-154B
1
154
171
1
246
1.6
317
7.0
10.8
125
BZW04-171
BZW04-171B
1
171
190
1
274
1.5
353
6.5
10.8
120
BZW04-188
BZW04-188B
1
188
209
1
328
1.4
388
6.0
10.8
110
BZW04-213
BZW04-213B
1
231
237
1
344
1.5
442
5.2
11.0
100
BZW04-256
BZW04-256B
1
256
285
1
414
1.2
529
4.3
11.0
90
BZW04-xx
3/6
Types
I
RM
@ V
RM
V
BR
@
I
R
V
CL
@ I
PP
V
CL
@ I
PP
T
C
min
max
max
max
typ
note2
10/1000
s
8/20
s
note3
note4
Unidirectional
Bidirectional
A
V
V
mA
V
A
V
A
10
-4
/C
pF
BZW04-273
BZW04-273B
1
273
304
1
438
1.2
564
4.0
11.0
85
BZW04-299
BZW04-299B
1
299
332
1
482
0.9
618
3.7
11.0
80
BZW04-342
BZW04-342B
1
342
380
1
548
0.9
706
3.2
11.0
75
BZW04-376
BZW04-376B
1
376
418
1
603
0.8
776
3.0
11.0
70
Note 2 :
Pulse test: tp < 50 ms.
Note 3 :
VBR =
T * (Tamb - 25) * VBR(25C)
Note 4 :
VR = 0 V, F = 1 MHz. For bidirectional types,
capacitance value is divided by 2
Fig. 1: Peak pulse power dissipation versus initial
junction temperature (printed circuit board).
10 s
1000 s
% I
PP
50
0
t
PULSE WAVEFORM 10/1000
s
100
BZW04-xx
4/6
0.001
0.01
0.1
1
10
100
tp (ms ) EXPO.
1E3
1E2
1E1
1E5
1E4
P
(W)
PP
Tj initial = 25C
Fig. 2 : Peak pulse power versus exponential pulse duration.
0.1
1
10
100
1000
1
10
100
1000
10
100
BWZ04 5V8
BWZ04 8V5
BWZ04 33
BWZ04 213
BWZ04 376
V
(V)
CL
Ipp (A)
t
% Ipp
100
50
0
t r
t < 10
s
r
t
-
-
-
-
-
Tj initial = 25C
Fig. 3 : Clamping voltage versus peak pulse current.
Exponential waveform t
p
= 20
s________
t
p
= 1 ms-------------
t
p
= 10 ms...............
Note : The curves of the figure 3 are specified for a junction temperature of 25C before surge.
The given results may be extrapolated for other junction temperatures by using the following formula :
V
BR
=
T
*
(T
amb
-25)
*
V
BR
(25C).
For intermediate voltages, extrapolate the given results.
BZW04-xx
5/6
0.01
0.1
1
10
100
1000
1
10
100
Zth (j-a) ( C/W)
tp(s)
Fig. 6: Transient thermal impedance junction ambi-
ent versus pulse duration (For FR4 PC Board
with L
lead
= 10mm).
Fig. 5: Peak forward voltage drop versus peak forward
current (typical values for unidirectional types).
Note : Multiply by 2 for units with VBR > 220V.
C (pF)
1
10
100
10
100
1000
10000
BZW04 - 13B
BZW04 - 5V8B
BZW04 - 58B
BZW04 - 171B
BZW04 - 342B
BZW04 - 26B
V
(V)
R
Tj = 25C
f = 1 MHz
Fig. 4b: Capacitance versus reverse applied
voltage for bidirectional types (typical values).
C (pF)
1
10
100
1
10
100
1000
10000
BZW04 13
BZW04 5V8
BZW04 58
BZW04 171
BZW04 342
BZW04 26
V
(V)
R
Tj = 25C
f = 1 MHz
-
-
-
-
-
-
Fig. 4a: Capacitance versus reverse applied
voltage for unidirectional types (typical values).
Fig. 7 : Relative variation of leakage current
versus junction temperature.
BZW04-xx
6/6
Packaging: standard packaging is in tape and reel.
PACKAGE MECHANICAL DATA
DO-15 (Plastic)
Weight = 0.4 g.
MARKING : Logo, Date Code, Type Code, Cathode Band (for unidirectional types only).
REF.
DIMENSIONS
Millimeters
Inches
Min.
Max.
Min.
Max.
A
6.05
6.75
0.238
0.266
B
2.95
3.53
0.116
0.139
C
26
31
1.024
1.220
D
0.71
0.88
0.028
0.035
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
approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics
2003 STMicroelectronics - Printed in Italy - All rights reserved.
STMicroelectronics GROUP OF COMPANIES
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http://www.st.com
BZW 04 - 10 B RL
400W
STAND-OFF VOLTAGE
BIDIRECTIONAL
No suffix: Unidirectional
PACKAGING:
` ` = Ammopack tape
`RL' = Tape & reel
ORDER
A
C
C
D
B
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