Frontier DL4738A 1watt melf zener diode Datasheet

Frontier Electronics Corp.
667 E. COCHRAN STREET, SIMI VALLEY, CA 93065
TEL: (805) 522-9998
FAX: (805) 522-9989
E-mail: [email protected]
Web: http://www.frontierusa.com
1WATT MELF ZENER DIODE
DL4728A THRU DL4753A
FEATURES
z LOW COST
z SMALL SIZE
SOLDERABLE ENDS
.105(2.67)
.095(2.41)
MECHANICAL DATA
z CASE: MELF DIMENSIONS
IN INCHES AND (MILLIMETERS)
z TERMINALS: SOLDERABLE PER MIL-STD -202, METHOD 208
z POLARITY: COLOR BAND DENOTES CATHODE
z MOUNTING POSITION: ANY
z WEIGHT: 0.135 GRAMS
.205(5.2)
.190(4.8)
.022(.60)
.018(.46)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS RATINGS AT 25°C AMBIENT TEMPERATURE UNLESS OTHERWISE
SPECIFIED STORAGE AND OPERATING TEMPERATURE RANGE -55 TO + 150°C
ELECTRICAL CHARACTERISTICS (TA=25℃ UNLESS OTHERWISE NOTED) VF=1.2V MAX, IF = 200mA FOR ALL TYPES
JEDEC
TYPE NO
DL4728A
DL4729A
DL4730A
DL4731A
DL4732A
DL4733A
DL4734A
DL4735A
DL4736A
DL4737A
DL4738A
DL4739A
DL4740A
DL4741A
DL4742A
DL4743A
DL4744A
DL4745A
DL4746A
DL4747A
DL4748A
DL4749A
DL4750A
DL4751A
DL4752A
DL4753A
NOMINAL
ZENER
VOLTAGE
VZ@ IZT
VOLTS
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.2
6.8
7.5
8.2
9.1
10
11
12
13
15
16
18
20
22
24
27
30
33
36
MAXIMUM ZENER IMPEDANCE
LEAKAGE CURRENT
TEST
CURRENT
IZT
mA
ZZT @ IZT
OHMS
ZZK @ IZK
OHMS
IZK
mA
IR
μA MAX
VR
VOLTS
76
69
64
58
53
49
45
41
37
34
31
28
25
23
21
19
17
15.5
14
12.5
11.5
10.5
9.5
8.5
7.5
7.0
10
10
9
9
8
7
5
2
3.5
4
4.5
5
7
8
9
10
14
16
20
22
23
25
35
40
45
50
400
400
400
400
500
550
600
700
700
700
700
700
700
700
700
700
700
700
750
750
750
750
750
1000
1000
1000
1
1
1
1
1
1
1
1
1
0.5
0.5
0.5
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
100
100
50
10
10
10
10
10
10
10
10
10
10
5
5
5
5
5
5
5
5
5
5
5
5
5
1
1
1
1
1
1
2
3
4
5
6
7
7.6
8.4
9.1
9.9
11.4
12.2
13.7
15.2
16.7
18.2
20.6
22.8
25.1
27.4
SURGE
CURRENT
@ TA=25℃
NOTE: SUFFIX "A" FOR ±5﹪
DL4728A THRU DL4753A
Page: 1
IR-mA
1380
1260
1190
1070
970
890
810
730
660
605
550
500
454
414
380
344
304
285
250
225
205
190
170
150
135
125
RATINGS AND CHARACTERISTIC CURVES DL4728A THRU DL4753A
+8
+6
+4
+2
VZ@IZT
RANGE
0
-2
-4
2
3
4
5
6
7
8
9
10
100
70
50
30
20
( mV/℃)
θ VZ, TEMPERATURE COEFFICIENT
FIG.1B- Range for Units to 12 to 100 Volts
+10
( mV/℃)
θ VZ, TEMPERATURE COEFFICIENT
FIG.1A- Range for Units to 12 Volts
+12
10
7
5
3
2
VZ@IZT
RANGE
1
11 12
10
20
30
50
70
100
VZ, ZENER VOLTAGE (VOLTS)
VZ, ZENER VOLTAGE (VOLTS)
Figure 2. Temperature Coefficients (-55℃to+150℃temperature change;90% of the units are in the ranges indicated.)
RESISTANCE (mV/℃/W)
150
125
100
75
50
25
θ
0
0
0.1 0.2
VZ@IZ
( mV/℃)
θ VZ, TEMPERATURE COEFFICIENT
+6
JL,
JUNCTION TO LEAD THERMAL
175
+4
TA=25℃
+2
20mA
0.01mA
0
1mA
-2
NOTE: BELOW 3 VOLTS AND ABOVE 8 VOLTS
CHANGES IN ZENER CURRENT DO NOT
AFFECT TEMPERATURE COEFFICIENTS
-4
3
0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
100
70
50
20
7
8
Figure 4. Effect of Zener Current
0VBIAS
C, CAPACITANCE (PF)
200
6
400
300
200
Tj=25℃
Iz(ms)=0.1Iz(do)
f=60hz
5mA
20mA
10
7
5
2
1
100
0VBIAS
50
20
10
8
50%OF BREAKDOWN BIAS
4
1
2 3
5
7
10
20 30
50 70 100
1
VZ, ZENER CURRENT (mA)
2
5
10
1.25
1.0
0.75
0.5
0.25
0
DL4728A THRU DL4753A
20
VZ, NOMINAL VZ (VOLTS)
Figure. 7 - Power Temperature Derating Curve
PD ,MAXIMUM DISSIPATION
(WATTS)
ZZ DYNAMIC IMPEDANCE (OHMS)
Figure 3. Typical Thermal Resistance versus Lead Length
Iz=1mA
5
VZ, ZENER VOLTAGE (VOLTS)
L, LEAD LENGTH TO HEAT SINK (INCHES)
1000
700
500
4
20
40
60
80 100 120 140 160
TL, LEAD TEMPERATURE (OC)
180 200
Page: 2
50
100
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