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Zener Diodes Composite Elements
MA111
MAZK270D
Silicon planer type
Constant voltage, constant current, waveform cripper and surge absorption circuit s Features
2.9 -0.05
Unit : mm
2.8 -0.3 0.650.15 5
0.95
+0.2 +0.25
1.5 -0.05
0.650.15 1
q Mini q
type package (5-pin)
1.90.1
+0.2
4
0.95
Four anode-common element wiring of MA3270
3
2
0.3 -0.05
+0.1
s Absolute Maximum Ratings (Ta= 25C)
Parameter Average forward current Instanious forward current Total power dissipation Non-repetitive reverse power dissipation Junction temperature Storage temperature
*1 Working value in a single piece *2 With a printed-circuit board *3 t=100 s, Tj=150C
1.1 -0.1
0.8
0 to 0.1
Symbol IF(AV) IFRM Ptot *2 PZSM*3 Tj Tstg
Rating 100 *1 200 *1 200 *1 15 150 - 55 to + 150
Unit mA mA mW W C C
0.1 to 0.3 0.40.2
1 : Cathode 1 4 : Anode 1, 2 2 : Cathode 2 Anode 3, 4 3 : Cathode 3 5 : Cathode 4 Mini Type Package (5-pin)
s Internal Connection
5 4 3 2 1
1 s Electrical Characteristics (Ta= 25C)* Parameter Forward voltage Zener voltage Operating resistance Reverse current Temperature coefficient of zener voltage Terminal capacitance Symbol VF VZ RZ IR1 IR2 SZ *3 Ct *2 RZK IF=10mA IZ= 2mA IZ= 0.5mA IZ= 2mA VR= 19V VR= 24.8V IZ= 2mA VR= 0V, f=1MHz
300
Condition
min 25.10
typ 0.8 27.00 25
max 0.9 28.90 200 80 0.05 60
+0.1 0.16 -0.06
+0.2
1.450.1
Unit V V A A mV/C pF
21.4
23.4
25.3 50
Note 1. Test method : Depend on JIS C7031 testing 2. Rated input/output frequency : 5MHz 3. * 1 : The VZ value is for the temperature of 25C. In other cases, carry out the temperature compensation. * 2 : Guaranteeed at 20ms after power application * 3 : Tj= 25 to 150C
Ptot - Ta
With a printed-circuit board 250
s Marking
27A
Ptot (mW) Power dissipation
200
150
100
50
0 0 50 100 150 Ta 200 (C) 250 Ambient temperature

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