MMSZ4678 - MMSZ4688

TH97/2478
MMSZ4678 - MMSZ4688
TH09/2479
IATF 0060636
SGS TH07/1033
ZENER DIODES
SOD-123
VZ : 1.8 to 4.7 V
PD : 500 mW
FEATURES :
1.15
1.05
* Total Power Dissipation 500 mW on FR-4 or FR-5 Board
* Package Designed for Optimal Automated Board Assembly
* Small Package Size for High Density Applications
* Pb / RoHS Free
0.135
0.127
1.65
1.55
0.60
0.50
2.70
2.60
3.90
3.70
MECHANICAL DATA :
* Case : SOD-123
* Weight : 0.01 gram (approximately)
Dimensions in millimeters
Maximum Ratings and Thermal Characteristics (Rating at
Parameter
25 °C ambient temperature unless otherwise specified.)
Symbol
Total Power Dissipation on FR-5 Board, at TL = 75 °C
Derated above 75 °C
Maximum Forward Voltage at IF = 10 mA
PD
VF
RӨJA
RӨJL
TJ
TSTG
Thermal Resistance Junction to Ambient
Thermal Resistance Junction to Lead
Junction Temperature Range
Storage Temperature Range
Value
Unit
500(1)
6.7
0.95
340
150
-55 to + 150
-55 to + 150
mW
mW/°C
V
°C/W
°C/W
°C
°C
Note : (1) FR-5 = 3.5 x 1.5 inches,using the minimum recommended footprint.
ELECTRICAL CHARACTERISTICS
( Rating at 25 °C ambient temperature unless otherwise specified)
Max.
Test
Current
IZT
(µA)
1.89
2.10
2.31
2.52
2.835
3.15
3.47
3.78
4.10
4.52
4.94
50
50
50
50
50
50
50
50
50
50
50
Zener Voltage (1,2)
Type No.
Marking
Min.
MMSZ4678
MMSZ4679
MMSZ4680
MMSZ4681
MMSZ4682
MMSZ4683
MMSZ4684
MMSZ4685
MMSZ4686
MMSZ4687
MMSZ4688
BC
BD
BE
BF
BH
BJ
BK
BM
BN
BP
BR
1.71
1.90
2.09
2.28
2.565
2.85
3.13
3.42
3.70
4.09
4.47
VZ @ IZT
Nom.
1.8
2.0
2.2
2.4
2.7
3.0
3.3
3.6
3.9
4.3
4.7
(V)
Maximum Reverse
Leakage Current
IR
@
VR
(V)
(µA)
7.5
5.0
4.0
2.0
1.0
0.8
7.5
7.5
5.0
4.0
10
1.0
1.0
1.0
1.0
1.0
1.0
1.5
2.0
2.0
2.0
3.0
Notes :
(1) Tested with pulses tp = 20 ms
(2) Nominal Zener voltage is measured with the device junction in thermal equilibrium at TL = 30°C ±1°C
Page 1 of 2
Rev. 03 : July 22, 2010
TH97/2478
TH09/2479
IATF 0060636
SGS TH07/1033
RATING AND CHARACTERISTIC CURVES ( MMSZ4678 - MMSZ4688 )
FIG.1 - TEMPERATURE COEFFICIENTS
(TEMPERATURE RANGE - 55 °C to +150 °C)
FIG.2 - STEADY STATE POWER DERATING
1.2
ӨVZ, TEMPERATURE COEFFICIENT, (mV/°C)
8
PD, POWER DISSIPATION, (W)
TYPICAL TC VALUES
6
4
2
VZ @ IZT
0
-2
1.0
PD versus TL
0.8
0.6
PD versus TA
0.4
0.2
0
-4
2
0
4
6
8
10
12
0
VZ, NOMINAL ZENER VOLTAGE, (V)
50
75
100
125
15
T, TEMPERATURE, (°C)
FIG.3 - TYPICAL FORWARD VOLTAGE
FIG.4 - MAXIMUM NON-REPETITIVE SURGE POWER
1000
PPK, TPEAK SURGE POWER, (W)
1000
IF, FORWARD CURRENT, (mA)
25
10
0
10
25 °C
1
0.4
RECTANGULAR
WAVEFORM, TA = 25 °C
10
0
10
1
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
VF, FORWARD VOLTAGE, (V)
0.1
1
10
100
1000
PW, PULSE WIDTH, (ms)
FIG.5 - ZENER VOLTAGE VS. ZENER CURRENT
20
10
IZ, ZENER CURRENT, (mA)
TA = 25 °C
1
0.1
0.01
0
2
4
6
8
10
12
VZ, ZENER VOLTAGE, (V)
Page 2 of 2
Rev. 03 : July 22, 2010