SMD Zener Diode
CZRMF4747A-HF
Zener Voltage: 20 Volts
DC Power: 1 Watts
RoHS Device
Halogen Free
SOD-123FL/SMF
Features
- Glass passivated chip.
- Low leakage current.
0.114(2.90)
0.102(2.60)
0.047(1.20)
0.028(0.70)
0.075(1.90)
0.063(1.60)
- Built-in strain relief.
0.154(3.90)
0.138(3.50)
- Low inductance.
- High peak reverse power dissipation.
- For use in stabilizing and clipping
0.010(0.25)
0.002(0.05)
with high power rating.
0.051(1.30)
0.037(0.95)
Mechanical data
- Case: Molded plastic.
0.033(0.85)
0.014(0.35)
- Epoxy: UL 94V-0 rate flame retardant.
- Lead: Solderable per MIL-STD-750, method 2026.
Dimensions in inches and (millimeter)
Circuit diagram
- Polarity: Color band denotes cathode end
except bipolar.
- Mounting position: Any.
- Weight: 0.062 grams (approx.).
Maximum Rating (at TA=25°C unless otherwise specified)
Conditions
Symbol
PD
Parameter
Value
Unit
W
DC power dissipation
T
L
=50°C (note.1)
=200mA
Junction to ambient air (note.2)
1
Forward voltage
IF
VF
1.2
V
Thermal resistance
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.
Electrical Characteristics (at TA=25°C unless otherwise specified)
Maximum Maximum
Nominal Zener
Voltage
Maximum Zener
Impedance
Maximum Reverse
Leakage Current
Surge
DC Zener
Current
Current
Device
marking
VZ@IZT
IZT
ZZT@IZT ZZK@IZK IZK
IR@VR
IZM
IRM
Part Number
code
µA
mApk
V
mA
Ω
Ω
mA
V
mA
CZRMF4747A-HF
20
12.5
22
750
0.25 0.10
15.2
45
225
47A
Notes: 1. The type number listed have a standard tolerance on the nominal zener voltage of ± 5%
2. The reverse surge current is a non-repetitive, 8.3ms pulse width square wave or equivalent
sine wave superimposed on IZT per JEDEC method.
Company reserves the right to improve product design , functions and reliability without notice.
REV:A
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QW-JZ012
Comchip Technology CO., LTD.
