1/6
BZW04-5V8/376
BZW04-5V8B/376B
TRANSILTM
■PEAK PULSE POWER : 400 W (10/1000µs)
■STAND-OFF VOLTAGE RANGE :
From 5.8V to 376 V
■UNI AND BIDIRECTIONAL TYPES
■LOW CLAMPING FACTOR
■FAST RESPONSE TIME
■UL RECOGNIZED
FEATURES
DO-15
Symbol Parameter Value Unit
PPP Peak pulse power dissipation (see note 1) Tj initial = Tamb 400 W
PPower dissipation on infinite heatsink Tamb = 75°C 1.7 W
IFSM Non repetitive surge peak forward current
for unidirectional types tp = 10ms
Tj initial = Tamb 30 A
Tstg
TjStorage temperature range
Maximum junction temperature -65to+175
175 °C
°C
TLMaximum 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 (Tamb = 25°C)
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
Rth (j-l) Junction to leads 60 °C/W
Rth (j-a) Junction to ambient on printed circuit. Llead =10mm 100 °C/W
THERMAL RESISTANCES
®
BZW04-xx
2/6
I
IF
VF
VVCL VBR
VRM
IPP
IRM V
Symbol Parameter
VRM Stand-off voltage
VBR Breakdown voltage
VCL Clamping voltage
IRM Leakage current @ VRM
IPP Peak pulse current
αTVoltage temperature coefficient
VFForward voltage drop
ELECTRICAL CHARACTERISTICS (Tamb = 25°C)
Types IRM @V
RM VBR @I
RV
CL @I
PP VCL @I
PP αTC
max min max max max typ
note2 10/1000µs 8/20µs note3 note4
Unidirectional Bidirectional µAV VmAV A VA10
-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 IRM @V
RM VBR @I
RV
CL @I
PP VCL @I
PP αTC
min max max max typ
note2 10/1000µs 8/20µs note3 note4
Unidirectional Bidirectional µAVVmAVAVA10
-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<50ms.
Note 3 : ∆VBR =αT*(Tamb - 25) *VBR(25°C)
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
0t
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 = 25°C
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
0trt<10 s
r
t
-
-
-
-
-
Tj initial = 25°C
Fig. 3 : Clamping voltage versus peak pulse current.
Exponential waveform tp=20µs________
tp= 1 ms——————-
tp= 10 ms...............
Note : The curves of the figure 3 are specified for a junction temperature of 25°C before surge.
The given results may be extrapolated for other junction temperatures by using the following formula :
∆VBR =αT*(Tamb -25) *VBR (25°C).
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-
entversus pulse duration (For FR4 PC Board
with L lead = 10mm).
Fig. 5: Peak forward voltage drop versus peak forward
current (typical values for unidirectionaltypes).
Note : Multiply by 2 for units with VBR > 220V.
C (pF)
110100
10
100
1000
10000
BZW04-13B
BZW04-5V8B
BZW04-58B
BZW04-171B
BZW04-342B
BZW04-26B
V(V)
R
Tj = 25øC
f=1MHz
°
Fig. 4b: Capacitance versus reverse applied
voltage for bidirectional types (typical values).
C (pF)
1 10 100
1
10
100
1000
10000
BZW04 13
BZW045V8
BZW04 58
BZW04171
BZW04342
BZW04 26
V(V)
R
Tj = 25øC
f=1MHz
-
-
-
-
-
-
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:standardpackagingisintapeand 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
Informationfurnished isbelieved to be accurate andreliable. However, STMicroelectronics assumes noresponsibility for the consequences of
useof suchinformation nor forany infringementof patents orother rightsof third partieswhich may result from itsuse. No licenseis grantedby
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
Australia - Brazil - Canada - China - Finland - France - Germany
Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore
Spain - Sweden - Switzerland - United Kingdom - United States.
http://www.st.com
BZW 04 - 10 B RL
400W
STAND-OFF VOLTAGE BIDIRECTIONAL
No suffix: Unidirectional
PACKAGING:
‘ ‘ = Ammopack tape
‘RL’= Tape & reel
ORDER
ACC
DB
