SMD Zener Diode
SMD Diodes Specialist
CZRW5221B-HF Thru CZRW5259B-HF
Voltage: 2.4 to 75 Volts
Power: 500 mWatts
RoHS Device
Features
SOD-123
Halogen free.
0.152(3.85)
For surface mounted applications.
0.140(3.55)
500mW Power Dissipation.
Ideally suited for automated assembly
0.026(0.65) 0.067(1.70)
processes. 0.018(0.45) 0.059(1.50)
Pb free product.
0.110(2.80)
0.102(2.60)
Mechanical data
Case: SOD-123 , Molded plastic.
0.045(1.15)
0.006 (0.15)
Terminals: Solder Plated,solderable per
0.041(1.05)
0.003 (0.08)
MIL-STD-750,method 2026.
0.004(0.10) Max.
Polarity: Cathode band.
0.02 (0.50) REF
Weight: 0.01 gram(approx.).
Dimensions in inches and (millimeter)
Maximum Rating AND Electrical Characteristics
Parameter Symbol Value
Unit
Forward Voltage (Note 2) @ IF=10mA VF 0.9 V
Power Dissipation (Note 1) PD 500 mW
O
Thermal Resistance,Junction to Ambient Air
R JA 250 C
/W
O
TJ,TSTG
Operating and Storage Temperature Range -65 to +150 C
2
Notes: 1. Device mounted on ceramic PCB;7.6mm x 9.4mm x 0.87mm with pad areas 25mm .
2. Tested with pulses,Tp1 .0ms
REV:C
QW-JZ001 Page 1SMD Zener Diode
SMD Diodes Specialist
RATING AND CHARACTERISTIC CURVES (CZRW5221B-HF Thru CZRW5259B-HF)
Fig.1- Power Derating Curve
500
O
TA = 25 C
400
300
200
100
0
0 25 50 75 100 125 150 175
Ambient Temperature , (C)
REV:C
QW-JZ001 Page 3
Power Dissipation , (mW)