SMD Zener Diode
CZRA4728B-HF Thru. CZRA1330B-HF
Zener Voltage: 3.3 to 330 Volts
DC Power: 1 Watts
RoHS Device
Halogen Free
DO-214AC (SMA)
Features
-Glass passivated chip.
0.179(4.55)
-Low leakage.
0.161(4.10)
-For use in stabilizing and clipping
with high power rating.
0.109(2.76)
0.099(2.51)
0.064(1.63)
0.049(1.23)
-Built-in strain relief.
-Low inductance.
-High peak reverse power dissipation.
0.206(5.22)
0.192(4.87)
0.012(0.30)
0.006(0.15)
Mechanical data
-Case: JEDEC DO-214AC, molded plastic.
0.089(2.26)
0.077(1.96)
-Epoxy: UL 94V-0 rate flame retardant.
0.008(0.20)
0.000(0.00)
0.059(1.51)
0.030(0.75)
-Lead: Solderable per MIL-STD-750,
method 2026.
-Polarity: Color band denotes cathode end.
Dimensions in inches and (millimeter)
-Mounting position: Any.
-Approx. weight: 0.069 grams
Maximum Ratings and Electrical Characteristics
Ratings at 25°C ambient temperature unless otherwise specified.
Single phase, half wave, 60Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
Value
Characteristics
Symbol
Units
DC power dissipation at TL=50°C
(Note 1)
PD
1
W
Max. forward voltage at IF=200 mA
VF
1.2
V
Maximum thermal resistance junction
to ambient air (Note 2)
RθJA
TJ
170
K/W
°C
Junction temperature range
Storage temperature range
-55 to +175
-55 to +175
TSTG
°C
Notes:
1. TL= Lead temperature at 3/8” (9.5mm) from body.
2. Valid provided that leads are kept at ambient temperature at a distance of 10mm from case.
Company reserves the right to improve product design , functions and reliability without notice.
REV: A
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Comchip Technology CO., LTD.
