LESHAN RADIO COMPANY, LTD.
BZW04 SERIES
GLASS PASSIVATED JUNCTION TRANSIENT VOLTAGE SUPPRESSOR
VOLTAGE-6.8 TO 440 Volts 400 watt
Peak Power / 1.0 Watt Steady State
1.0(25.4)
MIN
0.205(5.2)
0.160(4.1)
1.0(25.4)
MIN
FEATURES
•
Plastic package
•
Glass passivated chip junction in DO-41 package
•
400W surge capability at 10/1000 µs wave from
0.034(0.86)
DIA
0.028(0.71)
1.07(2.7)
DIA
0.080(2.0)
DO – 204AL(DO41 Plastic)
•
Excellent clamping capability
•
Low zener impedance
•
Fast response time: typically less than 1.0ps from 0 Volts to BV min.
•
Typical IR less than 1µA above 10V
•
High temperature soldering guaranteed: 300°C/10 seconds/.375",(9.5mm) lead length, 5lbs., (2.3kg) tension
MECHANICAL DATA
Case: JEDEC DO-41 Molded plastic
Terminal: Axial leads, solderable per MIL-STD-750, Method 2026
Polarity: Color band denotes cathode except Bipolar
Mounting Position: Any
Weight: 0.012 ounce, 0.3 grams
DEVICES FOR BIPOLAR APPLICATION
For Bidirectional use B Suffix for types BZW04-5V8 thru types BZW04-376 (e.g. BZW04-5V8B,BZW04-376B)
Electrical characteristics apply in both directions
MAXIMUM RATINGS AND CHARACTERISTICS
Ratings at 25°c ambient temperature unless otherwise specified.
RATING
Peak Pulse Power Dissipation at T
A
= 25°c , T
P
= 1ms (Note 1)
Steady State Power Dissipation at T
L
= 75°c , Lead lengths.375",(9.5mm) (Note 2)
Peak Forward Surge Current,8.3ms Single Half Sine-Wave
Superimposed on Rated Load,(JEDEC Method) (Note 3)
Operating junction and Storage Temperature Range
Notes :
1.Non-repetitive current pulse , per Fig. 3 and derated above T
A
= 25°C per Fig. 2 .
2.Mounted on Copper Pad area of 1.6×1.6" (40×40mm) per Fig. 5.
SYMBOL
P
PPM
P
M(AV)
I
FSM
T
J
, T
STG
VALUE
Minimum
400
1
40
-55 to +
175
UNITS
Watts
Watts
Amps
°C
3.8.3ms single half sine-wave , or equivalent square wave, Duty cycle = 4 pulses per minutes maximum.
http://www.lrc-china.com
BZW04–1/4
LESHAN RADIO COMPANY, LTD.
BZW04 SERIES
Ratings and Characteristic Curves
(T
A
=25°C unless otherwise noted)
P
p p m
– P e a k PulsePower (kw)
Peak Pulse Power(P
pp
) or Current
(I
pp
) Derating in Percentage,%
100
Non–repelitive Pulse
Wavelom shown in flg.3 T
A
=25°C
10
100
75
50
1
25
0
0
25
50
75
100
125
150
175
200
0.1
0.1µs
1.0µs
10µs
100µs
1.0ms
100µs
t
d
– Pulse width(sec.)
T
A
– Ambirnt Temperature(°c)
150
t
r
=10µsec.
Peak Value
I
PPM
Halt Value –
I
PPM
I
pp
2
C
j
– Junction Capacitance (pF)
Figure.1– Peak Pulse Power Rating curve
I
ppM
– Peak Pulse Current,
% I
RSM
T
j
=25°c
Pulse width(td)
is defined as the point
where the peak current
decays to 50% of I
PPM
10/1000µsec.
Waveform
as defined by R.E.A
td
0
1.0
2.0
3.0
4.0
Figure.2– Pulse Derating Curve
6,000
1,000
T
J
=25°C
f=1.0MHZ
Vsig=50mVp-p
Measured at
Zero Bias
100
50
100
Measured at
Stand-off Voltage
V
WM
10
1.0
10
100
200
0
t – Time(ms)
Figure .3 – Pulse wave form
PM(AV), Steady State Power
Dissipation(W)
60Hz
Resistive or
inductive Load
V
(BR)
,Breakdown Voltage (V)
Figure 4. Typical Junction Capacitance
I
FSM –
Peak
forwar Surge Current (A)
200
8.3ms Single Half sine-Wave
(JEDEC Method) T
J
=T
J
max
5.0
L=0.375½(9.5mm)
Lead Lengths
3.75
100
2.5
1.6×1.6×0.040½
1.25
0
0
25
50
75
100
125
150
175
200
(40×40×1mm) Copper Heat Sinks
10
1
5
10
50
100
T
L
– Lead Temperature (
°C
)
Number of Cycles at 60 Hz
Transient Thermal Impedance
(i
C/W
)
Figure .5 – Steady State powerDerating curve
I
P
– Instantaneous Reverse
Leakage Current (µA)
1,000
100
10
1
0.1
0.01
Measured at Devices
Stand–off Voltage,V
WM
T
A
=25°C
100
Figure .6 – Max. NOn-repetitive Forward
surge Current
10
1
0.001
0
100
200
300
400
500
0.1
0.001 0.01
0.1
1
10
100
1000
V
(BR)
– Breakdown Voltage (V)
tp – Pulse Duration (sec)
Figure .7 – Typ. Reverse Leakage Characteristics
Figure .8 – Typ. Transient Thermal Lmpedance
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BZW04–4/4
PCB Design
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