Rectron FM4738W Surface mount zener silicon rectifier (voltage range - 6.2 to 91.0 volts steady state power- 1.0 watt) Datasheet

FM4735W
RECTRON
THRU
SEMICONDUCTOR
TECHNICAL SPECIFICATION
FM4763W
SURFACE MOUNT ZENER SILICON RECTIFIER
VOLTAGE RANGE - 6.2 TO 91.0 Volts Steady State Power- 1.0 Watt
FEATURES
*
*
*
*
Plastic package has underwriters laboratory
Excellent clamping capability
Low zener impedance
Low regulation factor
SMX
MECHANICAL DATA
* Epoxy : Device has UL flammability classification 94V-0
.209 (5.31)
.185 (4.70)
.110 (2.79)
.086 (2.18)
.091 (2.31)
.067 (1.70)
.160 (4.06)
.008 (0.20)
.180 (4.57)
.010 (0.25)
.011 (0.28)
.007 (0.18)
.067 (1.70)
.051 (1.30)
Ratings at 25 o C ambient temperature unless otherwise specified.
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
.059 (1.50)
.035 (0.89)
Ratings at 25 o C ambient temperature unless otherwise specified.
Dimensions in inches and (millimeters)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICE
MAXIMUM RATINGS (At TA = 25oC unless otherwise noted)
TYPE
NOMINAL
ZENER
V O LTA G E
at I ZT
VZ
(NOTE 1)
(Volts)
TEST
CURRENT
IZT
(mA)
MAXIMUM DYNAMIC
IMPEDANCE
Z ZT at
IZT
(Ohms)
Z ZK at
(Ohms)
(NOTE 1)
IZK
(mA)
MAXIMUM DC REVERSE
LEAKAGE CURRENT
MAXIMUM
SURGE
CURRENT
(NOTE 2)
IRM
IR
(uA)
VR
(Volts)
(mApk)
MAXIMUM
F O RWA R D
V O LTA G E
at 200mA
VF
(Volts)
FM4735W
6.2
41.0
2.0
700
1.0
50.0
3.0
730.0
1.2
FM4736W
6.8
37.0
3.5
700
1.0
10.0
4.0
660.0
1.2
FM4737W
7.5
34.0
4.0
700
0.5
10.0
5.0
605.0
1.2
FM4738W
8.2
31.0
4.5
700
0.5
10.0
6.0
550.0
1.2
2001-6
TYPE
NOMINAL
ZENER
V O LTA G E
at I ZT
VZ
TEST
CURRENT
I ZT
(NOTE 1)
(mA)
(Volts)
MAXIMUM DYNAMIC
IMPEDANCE
Z ZT at
IZT
(Ohms)
Z ZK at
(Ohms)
(NOTE 1)
IZK
(mA)
MAXIMUM DC REVERSE
LEAKAGE CURRENT
MAXIMUM
SURGE
CURRENT
IR
(uA)
VR
(Volts)
(mApk)
MAXIMUM
F O RWA R D
V O LTA G E
at 200mA
VF
(Volts)
(NOTE 2)
IRM
FM4739W
9.1
28.0
5.0
700
0.5
10.0
7.0
500.0
1.2
FM4740W
10
25.0
7.0
700
0.25
10.0
7.6
454.0
1.2
FM4741W
11
23.0
8.0
700
0.25
5.0
8.4
414.0
1.2
FM4742W
12
21.0
9.0
700
0.25
5.0
9.1
380.0
1.2
FM4743W
13
19.0
10.0
700
0.25
5.0
9.9
344.0
1.2
FM4744W
15
17.0
14.0
700
0.25
5.0
11.4
305.0
1.2
FM4745W
16
15.5
16.0
700
0.25
5.0
12.2
285.0
1.2
FM4746W
18
14.0
20.0
750
0.25
5.0
13.7
250.0
1.2
FM4747W
20
12.5
22.0
750
0.25
5.0
15.2
225.0
1.2
FM4748W
22
11.5
23.0
750
0.25
5.0
16.7
205.0
1.2
FM4749W
24
10.5
25.0
750
0.25
5.0
18.2
190.0
1.2
FM4750W
27
9.5
35.0
750
0.25
5.0
20.6
170.0
1.2
FM4751W
30
8.5
40.0
1000
0.25
5.0
22.8
150.0
1.2
FM4752W
33
7.5
45.0
1000
0.25
5.0
25.1
135.0
1.2
FM4753W
36
7.0
50.0
1000
0.25
5.0
27.4
125.0
1.2
FM4754W
39
6.5
60.0
1000
0.25
5.0
29.7
115.0
1.2
FM4755W
43
6.0
70.0
1500
0.25
5.0
32.7
110.0
1.2
FM4756W
47
5.5
80.0
1500
0.25
5.0
35.8
95.0
1.2
FM4757W
51
5.0
95.0
1500
0.25
5.0
38.8
90.0
1.2
FM4758W
56
4.5
110.0
2000
0.25
5.0
42.6
80.0
1.2
FM4759W
62
4.0
125.0
2000
0.25
5.0
47.1
70.0
1.2
FM4760W
68
3.7
150.0
2000
0.25
5.0
51.7
65.0
1.2
FM4761W
75
3.3
175.0
2000
0.25
5.0
56.0
60.0
1.2
FM4762W
82
3.0
200.0
3000
0.25
5.0
62.2
55.0
1.2
FM4763W
91
2.0
250.0
3000
0.25
5.0
69.2
50.0
1.2
NOTES : 1. Standard voltage tolerance is 10%, Suffix “A” : + 5%
2. Surge current is a non-repetitive, 8.3ms pulse width square wave or equivalent sine-wave superimposed on IZT per JEDEC Method
3. Maximum steady state power dissipation is 1.0 watt at TT=75oC
2001-6
RATING AND CHARACTERISTIC CURVES ( FM4735W THRU FM4763W )
1.0
FIG. 2 - TYPICAL ZENER IMPEDANCE
60 Hz
RESISTIVE OR
INDUCTIVE LOAD
0.75
0.5
0.25
P.C.B.MOUNTED ON
0.31 X 0.31 X 0.08" (8 X 8 X 2mm)
COPPER AREAS PADS
0
25
50
75
100 125
150
TERMINALS TEMPERATURE,
175
Zz, DYNAMIC ZENER IMPEDANCE,
OHMS
PM(AV), AVERAGE POWER
DISSIPATION, WATTS
FIG. 1 - MAXIMUM CONTINUOUS
POWER DISSIPATION
PULSE WIDTH=300uS
1% DUTY CYCLE
TJ = 25
0.1
0.01
0.4
0.6
0.8
1.0
1.4
1.2
1.6
INSTANTANEOUS FORWARD VOLTAGE,
VOLTS
100
10
1
0.5
10
100
IZT, ZENER TEST CURRENT, mA
10
TJ = 100
1
0.1
TJ = 25
0.01
0
20
40
60
80
PERCENT OF RATED ZENER VOLTAGE, %
FIG. 5 - TYPICAL TEMPERATURE COEFFICIENTS
110
90
TESTED at RATED IZT
70
50
30
10
0
0
500
FIG. 4 - TYPICAL REVERSE CHARACTERISTICS
INSTANTANEOUS REVERSE CURRENT,
MICROAMMPERES
1
Vz, TEMPERATURE COEFFICIENT,
mV/
INSTANTANEOUS FORWARD CURRENT,
AMPERES
FIG. 3 - TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS FOR FM4763W
10
1,000
10 20 30 40 50 60 70 80 90 100
Vz, ZENER VOLTAGE, VOLTS
RECTRON
100
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