Document
SURFACE MOUNT M.E.L.F ZENER DIODE
FEATURES
* Through-Hole Device Type Mounting * Hermetically Sealed Glass * Compression Bonded Construction * All external surfaces are corrosion resistant and leads
are readily solderable
DL4728A THRU
DL4764A
LL-41
MECHANICAL DATA
* Package : LL-41 (MELF) * Case : Hermetically Sealed Glass * Lead : Tin
(0.110)2.80 (0.094)2.40
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25 oC ambient temperature unless otherwise specified.
Single phase, half wave, 60Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
(0.024)0.60 (0.018)0.46
2 Places typ
(0.216)5.6 (0.198)4.8
Dimensions in inches and (millimeters)
MAXIMUN RATINGS ( @ TA = 25oC unless otherwise noted )
CHARACTERISTICS
SYMBOL
Power Dissipation
PTOT
Thermal Resis Tolarance
RthJA -
Forward Voltage@If = 100mA Junction Temp
Storage Temp ELECTRICAL CHARACTERISTICS ( @ TA = 25oC unless otherwise noted )
Vf TJ Tstg
TYPE
DL4728A DL4729A DL4730A DL4731A
ZENER VOLTAGE
Vz(V) 3.3 3.6 3.9 4.3
Izt(mA) 76 69 64 58
MAX ZENER IMPEDANCE
@IzT
ZzT(W)
IzT(mA)
10 76
10 69
9 64
9 58
MAX ZENER IMPEDANCE
@Izk
ZzK(W)
IzK(mA)
400 1.0
400 1.0
400 1.0
400 1.0
DL4732A
4.7 53 8 53 500 1.0
DL4733A DL4734A
5.1 49 7 49 550 1.0 5.6 45 5 45 600 1.0
DL4735A DL4736A DL4737A DL4738A DL4739A
6.2 41 2 41 700 1.0 6.8 37 3.5 37 700 1.0 7.5 34 4 34 700 0.5 8.2 31 4.5 31 700 0.5 9.1 28 5 28 700 0.5
Ratings 1
170 5 1.0
200 -65 to 200
MAX IMUM REVERSE CURRENT
VR(V)
IR(uA)
1.0 100
1.0 100
1.0 50
1.0 10
1.0 10
1.0 10
2.0 10
3.0 10
4.0 10
5.0 10
6.0 10
7.0 10
UNITS W
K/W % V oC oC
MAX IMUM REGULATOR
CURRENT IzM(mA) 276 252 234 217 193 178 162 146 133 121 110 100 2009-02
ELECTRICAL CHARACTERISTICS ( @ TA = 25oC unless otherwise noted )
TYPE
ZENER VOLTAGE
Vz(V)
Izt(mA)
MAX ZENER IMPEDANCE
@IzT
ZzT(W)
IzT(mA)
DL4740A
10 25 7 25
DL4741A
11 23 8 23
DL4742A
12 21 9 21
DL4743A
13 19 10 19
DL4744A
15 17 14 17
DL4745A
16 15.5 16 15.5
DL4746A
18 14 20 14
DL4747A
20 12.5 22 12.5
DL4748A
22 11.5 23 11.5
DL4749A
24 10.5 25 10.5
DL4750A
27 9.5 35 9.5
DL4751A DL4752A
30 8.5 40 8.5 33 7.5 45 7.5
DL4753A
36 7.0 50 7.0
DL4754A
39 6.5 60 6.5
DL4755A
43 6.0 70 6.0
DL4756A DL4757A DL4758A
47 5.5 80 5.5 51 5.0 95 5.0 56 4.5 110 4.5
DL4759A DL4760A DL4761A DL4762A
62 4.0 125 4.0 68 3.7 150 3.7 75 3.3 175 3.3 82 3.0 200 3.0
DL4763A DL4764A
91 2.8 250 2.8 100 2.5 350 2.5
Note : "Fully ROHS compliant", "100% Sn plating (Pb-free)".
MAX ZENER IMPEDANCE
@Izk
ZzK(W)
IzK(mA)
700 0.25
700 0.25
700 1.0
700 1.0
700 1.0
700 1.0
750 1.0
750 1.0
750 1.0
750 1.0
750 1.0
1000 1000
0.5 0.5
1000
0.5
1000
0.25
1500
0.25
1500
0.25
1500
0.25
2000
0.25
2000
0.25
2000
0.25
2000
0.25
3000
0.25
3000
0.25
3000
0.25
MAX IMUM REVERSE CURRENT
VR(V)
IR(uA)
7.6 10
8.4 5
9.1 5
9.9 5
11.4
5
12.2
5
13.7
5
15.2
5
16.7
5
18.2
5
20.6
5
22.8 25.1
5 5
27.4
5
29.7
5
32.7
5
35.8
5
38.8
5
42.6
5
47.1
5
51.7
5
56.0
5
62.2
5
69.2
5
76.0
5
MAX IMUM REGULATOR
CURRENT IzM(mA) 91 83 76 69 61 57 50 45 41 38 34 30 27 25 23 22 19 18 16 14 13 12 11 10 9
2009-02
RATING AND CHARACTERISTICS CURVES ( DL4728A THRU DL4764A )
ADMISSIBLE POWER DISSIPATION, (W)
1.25
1.00
0.75
0.50
0.25
0 0 25 50 75 100 125 150 175 200
AMBIENT TEMPERATURE, (OC)
FIG.1 ADMISSIBLE POWER DISSIPATION vs. AMBIENT TEMPERATURE
10 TJ = 25OC Pulse Width = 300uS 1% Duty Cycle
1
DYNAMIC ZENER IMPEDANCE, (W)
10000
1000
100
VZ = 100 V
10 0.1
1
ZENER TEST CURRENT, (mA)
10
FIG.2 TYPICAL ZENER IMPEDANCE
10
1
TJ = 100 °C
INSTANTANTEOUS REVERSE CURRENT, (uA)
0.1
0.01 0.4 0.6 0.8 1 1.2 1.4 1.6
INSTANTANTEOUS FORWARD VOLTAGE, (V)
FIG.3 TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS
0.1
0.01 0
TJ = 25 °C
20 40 60 80
PERCENT OF RATED ZENER VOLTAGE, (%)
100
FIG.4 TYPICAL REVERSE CHARACTERISTICS
INSTANTANTEOUS FORWARD CURRENT, (A)
DISCLAIMER NOTICE
Rectron Inc reserves the right to make changes without notice to any product specification herein, to make corrections, modifications, enhancements or other changes. Rectron Inc or anyone on its behalf assumes no responsibility or liability for any errors or inaccuracies. Data sheet specifications and its information contained are intended to provide a product description only. "Typical" parameters which may be included on RECTRON data sheets and/ or specifications can and do vary in different applications and actual performance may vary over time. Rectron Inc does not assume any liability arising out of the application or use of any product or circuit.
Rectron products are not designed, intended or authorized for use in medical, life-saving implant or other applications intended for life-sustaining or other related applications where a failure or malfunction of component or circuitry may directly or indirectly cause injury or threaten a life without expressed written approval of Rectron Inc. Customers using o.