BZW04 SERIES
V
BR
: 6.8 - 440 Volts
P
PK
: 400 Watts
FEATURES :
* 400W surge capability at 1ms
* Excellent clamping capability
* Low zener impedance
* Fast response time : typically less
then 1.0 ps from 0 volt to V
BR(min)
* Typical I
R
less then 1µA above 10V
TRANSIENT VOLTAGE
SUPPRESSOR
DO - 41
1.00 (25.4)
MIN.
0.107 (2.74)
0.080 (2.03)
0.205 (5.20)
0.160 (4.10)
MECHANICAL DATA
* Case : DO-41 Molded plastic
* Epoxy : UL94V-O rate flame retardant
* Lead : Axial lead solderable per MIL-STD-202,
method 208 guaranteed
* Polarity : Color band denotes cathode end except Bipolar.
* Mounting position : Any
* Weight : 0.339 gram
0.034 (0.86)
0.028 (0.71)
1.00 (25.4)
MIN.
Dimensions in inches and (millimeters)
DEVICES FOR BIPOLAR APPLICATIONS
For bi-directional use B Suffix.
Electrical characteristics apply in both directions
MAXIMUM RATINGS
Rating at 25
°
C ambient temperature unless otherwise specified.
Rating
Peak Power Dissipation at Ta = 25
°
C, Tp=1ms
(Note1)
Steady State Power Dissipation at T
L
= 75
°
C
Lead Lengths 0.375", (9.5mm)
(Note 2)
Peak Forward Surge Current, 8.3ms Single Half
Sine-Wave Superimposed on Rated Load
(JEDEC Method)
(Note 3)
Operating and Storage Temperature Range
Note :
Symbol
P
PK
Value
Minimum 400
Unit
Watts
P
D
1.0
Watt
I
FSM
T
J,
T
STG
40
- 65 to + 175
Amps.
°
C
(1 ) Non-repetitive Current pulse, per Fig. 5 and derated above Ta = 25
°
C per Fig. 1
(2) Mounted on Copper Leaf area of 1.57 in
2
(40mm
2
).
(3) 8.3 ms single half sine-wave, duty cycle = 4 pulses per minutes maximum.
UPDATE : MAY 18, 1998
ELECTRICAL CHARACTERISTICS
Rating at = 25
°
C ambient temperature unless otherwise specified
Breakdown Voltage @ It
Working Peak
( Note 1 )
Reverse
Voltage
TYPE
V
BR
(V)
It
V
RWM
Min.
Max.
(mA)
(V)
BZW04P58
BZW04-58
BZW04P64
BZW04-64
BZW04P70
BZW04-70
BZW04P78
BZW04-78
BZW04P85
BZW04-85
BZW04P94
BZW04-94
BZW04P102
BZW04-102
BZW04P111
BZW04-111
BZW04P128
BZW04-128
BZW04P136
BZW04-136
BZW04P145
BZW04-145
BZW04P154
BZW04-154
BZW04P171
BZW04-171
BZW04P188
BZW04-188
BZW04P213
BZW04-213
BZW04P239
BZW04-239
BZW04P256
BZW04-256
BZW04P273
BZW04-273
BZW04P299
BZW04-299
BZW04P342
BZW04-342
BZW04P376
BZW04-376
64.6
64.6
71.3
71.3
77.9
77.9
86.5
86.5
95.0
95.0
105
105
114
114
124
124
143
143
152
152
161
161
171
171
190
190
209
209
237
237
266
266
285
285
304
304
332
332
380
380
418
418
74.8
71.4
82.5
78.8
90.2
86.1
100
95.5
110
105
121
116
132
126
143
137
165
158
176
168
187
179
198
189
220
210
242
231
275
263
308
294
330
315
352
336
385
368
440
420
484
462
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
58.1
58.1
64.1
64.1
70.1
70.1
77.8
77.8
85.5
85.5
94.0
94.0
102
102
111
111
128
128
136
136
145
145
154
154
171
171
188
188
213
213
239
239
256
256
273
273
299
299
342
342
376
376
Maximum
Reverse Leakage
@ V
RWM
I
R
(µA)
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
Maximum
Reverse
Current
I
RSM
(A)
4.3
4.3
3.9
3.9
3.5
3.5
3.2
3.2
2.9
2.9
2.6
2.6
2.4
2.4
2.2
2.2
2.0
2.0
1.8
1.8
1.7
1.7
1.6
1.6
1.5
1.5
1.4
1.4
1.3
1.3
1.3
1.3
1.2
1.2
1.2
1.2
0.9
0.9
0.9
0.9
0.8
0.8
Maximum
Clamping
Voltage @ I
RSM
V
RSM
(V)
92.0
92.0
103
103
113
113
125
125
137
137
152
152
165
165
179
179
207
207
219
219
234
234
246
246
274
274
301
301
344
344
384
384
414
414
438
438
482
482
548
548
603
603
Maximum
Temperature
Co-efficient
of V
BR
(% /
°
C)
0.104
0.104
0.105
0.105
0.105
0.105
0.106
0.106
0.106
0.106
0.107
0.107
0.107
0.107
0.107
0.107
0.108
0.108
0.108
0.108
0.108
0.108
0.108
0.108
0.108
0.108
0.108
0.108
0.110
0.110
0.110
0.110
0.110
0.110
0.110
0.110
0.110
0.110
0.110
0.110
0.110
0.110
Note:
( 1 ) V
BR
measured after It applied for 300
µs.,
It = square wave pulse or equivalent.
( 2 ) V
F
= 3.5 Vmax., I
F
= 25 Amps. ( 6.8 Volts thru 110 Volts )
V
F
= 5.0 Vmax., I
F
= 25 Amps. ( 120 Volts thru 440 Volts ) per 1/2 square or equivalent sine wave.
PW = 8.3 ms, duty cycle = 4 pulses per minute maximum.
RATING AND CHARACTERISTIC CURVES ( BZW04 SERIES )
FIG.1 - PULSE DERATING CURVE
PEAK PULSE DERATING IN % OF
PEAK POWER OR CURRENT
120
FIG.2 - MAXIMUM NON-REPETITIVE
SURGE CURRENT
60
PEAK FORWARD SURGE
CURRENT, AMPERES
100
80
50
40
60
40
30
20
20
0
0
25
50
75
100
125
150
175
10
0
8.3 ms SINGLE HALF SINE WAVE
JEDEC METHOD
1
2
4
6
10
20
40
60
100
Ta, AMBIENT TEMPERATURE, (
°
C)
FIG.3 - STEADY STATE POWER DERATING
P
D
, STEADY STATE POWER DISSIPATION
(WATTS)
NUMBER OF CYCLES AT 60Hz
FIG.4 - PULSE RATING CURVE
1.00
100
0.75
Pp,PEAK POWER (kW)
Single Phase Half Wave
60 Hz Resistive or Inductive load
10
0.50
1.0
0.25
0.1
0.1
µ
s
125
150
175
200
1.0
µ
s
10
µ
s
100
µ
s
1.0ms
10ms
0
0
25
50
75
100
tp, PULSE WIDTH
T
L
, LEAD TEMPERATURE (
°
C)
FIG.5 - PULSE WAVEFORM
PEAK PULSE CURRENT - % I
RMS
Tr = 10
µ
s
100
Peak Value
I
RMS
T
J
=25
°
C
Pulse Width (tp) is defined
as that point where the peak
current decays to 50%
of I
RSM
50
Half Value - I
RMS
2
10X1000 Waveform
as defined by R.E.A.
tp
0
0
1.0
2.0
3.0
4.0
T, TIME(ms)
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