BZW04 SERIES
TRANSIENT VOLTAGE
SUPPRESSOR
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 1
µ
A above 10V
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
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
Symbol
Value
Unit
Peak Power Dissipation at Ta = 25
°
C, Tp=1ms
(Note1)
P
PK
Minimum 400
Watts
Steady State Power Dissipation at T
L
= 75
°
C
Lead Lengths 0.375", (9.5mm)
(Note 2)
P
D
1.0
Watt
Peak Forward Surge Current, 8.3ms Single Half
Sine-Wave Superimposed on Rated Load
(JEDEC Method)
(Note 3)
I
FSM
40
Amps.
Operating and Storage Temperature Range
T
J,
T
STG
- 65 to + 175
°
C
Note :
(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
DO - 41
Dimensions in inches and (millimeters)
0.205 (5.20)
0.160 (4.10)
1.00 (25.4)
MIN.
0.107 (2.74)
0.080 (2.03)
0.034 (0.86)
0.028 (0.71)
1.00 (25.4)
MIN.
ELECTRICAL CHARACTERISTICS
Rating at = 25
°
C ambient temperature unless otherwise specified
Breakdown Voltage @ It
Working Peak
Maximum
Maximum
Maximum
Maximum
( Note 1 )
Reverse
Reverse Leakage
Reverse
Clamping
Temperature
TYPE
Voltage
@ V
RWM
Current
Voltage @ I
RSM
Co-efficient
V
BR
(V)
It
V
RWM
I
R
I
RSM
V
RSM
of V
BR
Min.
Max.
(mA)
(V)
(
µ
A)
(A)
(V)
(% /
°
C)
BZW04P58
64.6
74.8
1.0
58.1
5.0
4.3
92.0
0.104
BZW04-58
64.6
71.4
1.0
58.1
5.0
4.3
92.0
0.104
BZW04P64
71.3
82.5
1.0
64.1
5.0
3.9
103
0.105
BZW04-64
71.3
78.8
1.0
64.1
5.0
3.9
103
0.105
BZW04P70
77.9
90.2
1.0
70.1
5.0
3.5
113
0.105
BZW04-70
77.9
86.1
1.0
70.1
5.0
3.5
113
0.105
BZW04P78
86.5
100
1.0
77.8
5.0
3.2
125
0.106
BZW04-78
86.5
95.5
1.0
77.8
5.0
3.2
125
0.106
BZW04P85
95.0
110
1.0
85.5
5.0
2.9
137
0.106
BZW04-85
95.0
105
1.0
85.5
5.0
2.9
137
0.106
BZW04P94
105
121
1.0
94.0
5.0
2.6
152
0.107
BZW04-94
105
116
1.0
94.0
5.0
2.6
152
0.107
BZW04P102
114
132
1.0
102
5.0
2.4
165
0.107
BZW04-102
114
126
1.0
102
5.0
2.4
165
0.107
BZW04P111
124
143
1.0
111
5.0
2.2
179
0.107
BZW04-111
124
137
1.0
111
5.0
2.2
179
0.107
BZW04P128
143
165
1.0
128
5.0
2.0
207
0.108
BZW04-128
143
158
1.0
128
5.0
2.0
207
0.108
BZW04P136
152
176
1.0
136
5.0
1.8
219
0.108
BZW04-136
152
168
1.0
136
5.0
1.8
219
0.108
BZW04P145
161
187
1.0
145
5.0
1.7
234
0.108
BZW04-145
161
179
1.0
145
5.0
1.7
234
0.108
BZW04P154
171
198
1.0
154
5.0
1.6
246
0.108
BZW04-154
171
189
1.0
154
5.0
1.6
246
0.108
BZW04P171
190
220
1.0
171
5.0
1.5
274
0.108
BZW04-171
190
210
1.0
171
5.0
1.5
274
0.108
BZW04P188
209
242
1.0
188
5.0
1.4
301
0.108
BZW04-188
209
231
1.0
188
5.0
1.4
301
0.108
BZW04P213
237
275
1.0
213
5.0
1.3
344
0.110
BZW04-213
237
263
1.0
213
5.0
1.3
344
0.110
BZW04P239
266
308
1.0
239
5.0
1.3
384
0.110
BZW04-239
266
294
1.0
239
5.0
1.3
384
0.110
BZW04P256
285
330
1.0
256
5.0
1.2
414
0.110
BZW04-256
285
315
1.0
256
5.0
1.2
414
0.110
BZW04P273
304
352
1.0
273
5.0
1.2
438
0.110
BZW04-273
304
336
1.0
273
5.0
1.2
438
0.110
BZW04P299
332
385
1.0
299
5.0
0.9
482
0.110
BZW04-299
332
368
1.0
299
5.0
0.9
482
0.110
BZW04P342
380
440
1.0
342
5.0
0.9
548
0.110
BZW04-342
380
420
1.0
342
5.0
0.9
548
0.110
BZW04P376
418
484
1.0
376
5.0
0.8
603
0.110
BZW04-376
418
462
1.0
376
5.0
0.8
603
0.110
Note:
( 1 ) V
BR
measured after It applied for 300
µ
s., 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
FIG.2 - MAXIMUM NON-REPETITIVE
SURGE CURRENT
0
25
50
75
100
125
150
175
Ta, AMBIENT TEMPERATURE, (
°
C)
NUMBER OF CYCLES AT 60Hz
FIG.3 - STEADY STATE POWER DERATING
FIG.4 - PULSE RATING CURVE
FIG.5 - PULSE WAVEFORM
0
1.0
2.0
3.0
4.0
80
60
40
20
120
1.00
100
10
40
0
60
0
30
20
10
0.25
0.75
0
0.1
0.50
1.0
tp, PULSE WIDTH
PEAK FORWARD SURGE
CURRENT, AMPERES
PEAK PULSE DERATING IN % OF
PEAK POWER OR CURRENT
Pp,PEAK POWER (kW)
100
50
10
20
60
1
2
4
6
40
100
100
125
175
0
25
50
75
150
0.1
µ
s
1.0
µ
s
10
µ
s
100
µ
s
10ms
1.0ms
200
T
L
, LEAD TEMPERATURE (
°
C)
P
D
, STEADY STATE POWER DISSIPATION
(WATTS)
50
100
0
Tr = 10
µ
s
Peak Value
I
RMS
Half Value - I
RMS
2
T
J
=25
°
C
Pulse Width (tp) is defined
as that point where the peak
current decays to 50%
of I
RSM
tp
10X1000 Waveform
as defined by R.E.A.
T, TIME(ms)
PEAK PULSE CURRENT - % I
RMS
8.3 ms SINGLE HALF SINE WAVE
JEDEC METHOD
Single Phase Half Wave
60 Hz Resistive or Inductive load
