SMD Zener Diode
ACZRM5221B-HF Thru ACZRM5263B-HF
Voltage: 2.4 to 56 Volts
Power: 500 mWatts
RoHS Device
Halogen Free
Features
SOD-123 Flat Lead
- Surface Device Type Mounting.
0.146(3.70)
0.130(3.30)
- Moisture Sensitivity Level 1.
- Clip bonding construction, good thermal capability.
0.067(1.70)
0.059(1.50)
0.028(0.70)
0.020(0.50)
- Ideally suited for automated assembly
processes.
0.106(2.70)
0.098(2.50)
- Comply with AEC-Q101.
Mechanical data
0.039(1.00)
0.031(0.80)
- Case: SOD-123 Flat Lead,Molded plastic.
0.008(0.20)
0.002(0.05)
- Terminals: Solder Plated,solderable per
MIL-STD-750,method 2026.
Dimensions in inches and (millimeter)
- Polarity: Cathode band.
Circuit Diagram
Cathode
Anode
Maximum Ratings (@Ta=25°C unless otherwise specified)
Symbol
Value
Unit
PD
500
mW
Storage Temperature Range
TSTG
-65 to +150
°C
Operating and Storage Temperature Range
TOPR
-65 to +150
°C
Parameter
Power Dissipation
Notes: 1. These ratings are limiting values above which the serviceability of the diode may be impaired.
2. Company reserves the right to improve product design , functions and reliability without notice.
Company reserves the right to improve product design , functions and reliability without notice.
REV: A
Page 1
AQW-JZ001
Comchip Technology CO., LTD.
SMD Zener Diode
Electrical Characteristics (Ta = 25°C)
ZZT @ IZT
(Ohm)
VZ @ IZT
(Volts)
Part Number
ZZK @ IZK
(Ohm)
IR @ VR
(μA)
Marking
Code
Min
Nom
Max
Max
IZT(mA)
Max
IZK(mA)
Max
VR(V)
ACZRM5221B-HF
2.28
2.4
2.52
30
20
1200
0.25
100
1.0
Z2V4
ACZRM5222B-HF
2.38
2.5
2.63
30
20
1250
0.25
100
1.0
Z2V5
ACZRM5223B-HF
2.57
2.7
2.84
30
20
1300
0.25
75
1.0
Z2V7
ACZRM5224B-HF
2.66
2.8
2.94
30
20
1400
0.25
75
1.0
Z2V8
ACZRM5225B-HF
2.85
3.0
3.15
29
20
1600
0.25
50
1.0
Z3V0
ACZRM5226B-HF
3.14
3.3
3.47
28
20
1600
0.25
25
1.0
Z3V3
ACZRM5227B-HF
3.42
3.6
3.78
24
20
1700
0.25
15
1.0
Z3V6
ACZRM5228B-HF
3.71
3.9
4.10
23
20
1900
0.25
10
1.0
Z3V9
ACZRM5229B-HF
4.09
4.3
4.52
22
20
2000
0.25
5
1.0
Z4V3
ACZRM5230B-HF
4.47
4.7
4.94
19
20
1900
0.25
5
2.0
Z4V7
ACZRM5231B-HF
4.85
5.1
5.36
17
20
1600
0.25
5
2.0
Z5V1
ACZRM5232B-HF
5.32
5.6
5.88
11
20
1600
0.25
5
3.0
Z5V6
ACZRM5233B-HF
5.70
6.0
6.30
7
20
1600
0.25
5
3.5
Z6V0
ACZRM5234B-HF
5.89
6.2
6.51
7
20
1000
0.25
5
4.0
Z6V2
ACZRM5235B-HF
6.46
6.8
7.14
5
20
750
0.25
3
5.0
Z6V8
ACZRM5236B-HF
7.13
7.5
7.88
6
20
500
0.25
3
6.0
Z7V5
ACZRM5237B-HF
7.79
8.2
8.61
8
20
500
0.25
3
6.5
Z8V2
ACZRM5238B-HF
8.27
8.7
9.14
8
20
600
0.25
3
6.5
Z8V7
ACZRM5239B-HF
8.65
9.1
9.56
10
20
600
0.25
3
7.0
Z9V1
ACZRM5240B-HF
9.5
10
10.50
17
20
600
0.25
3
8.0
Z10V
ACZRM5241B-HF
10.45
11
11.55
22
20
600
0.25
2
8.4
Z11V
ACZRM5242B-HF
11.40
12
12.60
30
20
600
0.25
1
9.1
Z12V
ACZRM5243B-HF
12.35
13
13.65
13
9.5
600
0.25
0.5
9.9
Z13V
ACZRM5244B-HF
13.30
14
14.70
15
9.0
600
0.25
0.1
10
Z14V
ACZRM5245B-HF
14.25
15
15.75
16
8.5
600
0.25
0.1
11
Z15V
ACZRM5246B-HF
15.20
16
16.80
17
7.8
600
0.25
0.1
12
Z16V
ACZRM5247B-HF
16.15
17
17.85
19
7.4
600
0.25
0.1
13
Z17V
ACZRM5248B-HF
17.10
18
18.90
21
7.0
600
0.25
0.1
14
Z18V
ACZRM5249B-HF
18.05
19
19.95
23
6.6
600
0.25
0.1
14
Z19V
ACZRM5250B-HF
19.00
20
21.00
25
6.2
600
0.25
0.1
15
Z20V
Company reserves the right to improve product design , functions and reliability without notice.
REV: A
Page 2
AQW-JZ001
Comchip Technology CO., LTD.
SMD Zener Diode
Electrical Characteristics (Ta = 25°C)
ZZT @ IZT
(Ohm)
VZ @ IZT
(Volts)
Part Number
ZZK @ IZK
(Ohm)
IR @ VR
(μA)
Marking
Code
Min
Nom
Max
Max
IZT(mA)
Max
IZK(mA)
Max
VR(V)
ACZRM5251B-HF
20.90
22
23.10
29
5.6
600
0.25
0.1
17
Z22V
ACZRM5252B-HF
22.80
24
25.20
33
5.2
600
0.25
0.1
18
Z24V
ACZRM5253B-HF
23.75
25
26.25
35
5.0
600
0.25
0.1
19
Z25V
ACZRM5254B-HF
25.65
27
28.35
41
4.6
600
0.25
0.1
21
Z27V
ACZRM5255B-HF
26.60
28
29.40
44
4.5
600
0.25
0.1
21
Z28V
ACZRM5256B-HF
28.50
30
31.50
49
4.2
600
0.25
0.1
23
Z30V
ACZRM5257B-HF
31.35
33
34.65
58
3.8
700
0.25
0.1
25
Z33V
ACZRM5258B-HF
34.20
36
37.80
70
3.4
700
0.25
0.1
27
Z36V
ACZRM5259B-HF
37.05
39
40.95
80
3.2
800
0.25
0.1
30
Z39V
ACZRM5260B-HF
40.85
43
45.15
93
3.0
900
0.25
0.1
33
Z43V
ACZRM5261B-HF
44.65
47
49.35
105
2.7
1000
0.25
0.1
36
Z47V
ACZRM5262B-HF
48.45
51
53.55
125
2.5
1100
0.25
0.1
39
Z51V
ACZRM5263B-HF
53.20
56
58.80
150
2.2
1300
0.25
0.1
43
Z56V
Notes: 1. The zener voltage (VZ) is tested under pulse condition of 15mS.
The measured VZ is guaranteed to be within specification with device junction in thermal equilibrium.
2. The device numbers listed have a standard tolerance on the nominal zener voltage of ±5%.
3. The zener impedance is derived from the 60-cycle ac voltage, which results when an ac current having an rms value equal
to 10% of the dc zener current (IZT or IZK) is superimposed to IZT or IZK.
4. Company reserves the right to improve product design , functions and reliability without notice.
Company reserves the right to improve product design , functions and reliability without notice.
REV: A
Page 3
AQW-JZ001
Comchip Technology CO., LTD.
SMD Zener Diode
RATING AND CHARACTERISTIC CURVES (ACZRM5221B-HF Thru. ACZRM5263B-HF)
Fig.1 - Typical Forward Voltage
Fig.2 - Effect Of Zener Voltage
On Zener Impedance
1000
Dynamic Zener Impedance, (Ω)
Forward Current, (mA)
1000
100
150°C
75°C
10
5°C
25°C
1
TJ=25°C
IZ(AC)=0.1 IZ(AC)
F=1k Hz
100
10
1
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
10
1
100
Forward Voltage, (V)
Nominal Zener Voltage, (V)
Fig.3 - Power Dissipation
VS. Ambient Temp.
Fig.4 - Typical Capacitance
1000
1000
0V BIAS
1V BIAS
750
Capacitance, (pF)
Power Dissipation, (mW)
TA=25°C
500
100
BIAS AT
50% Of Vz Nom
10
250
0
1
0
25
50
75
100
125
150
Temperature (°C)
1
10
100
Nominal Zener Voltage, (V)
Company reserves the right to improve product design , functions and reliability without notice.
REV: A
Page 4
AQW-JZ001
Comchip Technology CO., LTD.
SMD Zener Diode
RATING AND CHARACTERISTIC CURVES (ACZRM5221B-HF Thru. ACZRM5263B-HF)
Fig.5 - Zener Breakdown Characteristics
Fig.6 - Zener Breakdown Characteristics
100
100
TA= 25°C
TA= 25°C
Zener Current, (mA)
Zener Current, (mA)
10
1
0.1
0.01
10
1
0.1
0.01
0
4
2
6
8
10
12
10
30
50
70
Zener Voltage, ( V )
Zener Voltage, (V)
Fig.7 - Typical Leakage Current
1000
100
Leakage Current, (µA)
10
1
+150°C
0.1
0.01
+25°C
0.001
-55°C
0.0001
0.00001
0
10
20
30
40
50
60
70
80
Nominal Zener Voltage, (V)
Company reserves the right to improve product design , functions and reliability without notice.
REV: A
Page 5
AQW-JZ001
Comchip Technology CO., LTD.
SMD Zener Diode
Reel Taping Specification
d
P0
T
E
Index hole
P1
F
W
B
P
C
A
12
o
0
D2
D1 D
W1
Trailer
Device
.......
.......
End
.......
.......
Leader
.......
.......
.......
.......
10 pitches (min)
Start
10 pitches (min)
Direction of Feed
SOD-123FL
SOD-123FL
SYMBOL
A
B
C
d
D
D1
D2
(mm)
1.85 ± 0.10
3.94 ± 0.10
1.58 ± 0.10
1.55 + 0.10
178 MAX.
50.0 MIN.
13.0 ± 0.20
(inch)
0.073 ± 0.004
0.155 ± 0.004
0.062 ± 0.004
0.061 + 0.004
7.008 MAX.
1.969 MIN.
0.512 ± 0.008
SYMBOL
E
F
P
P0
P1
T
W
W1
(mm)
1.75 ± 0.10
3.50 ± 0.05
4.00 ± 0.10
4.00 ± 0.10
2.00 ± 0.10
0.40 Max.
8.00 ± 0.30
14.4 MAX.
(inch)
0.069 ± 0.004
0.138 ± 0.002
0.157 ± 0.004
0.157 ± 0.004
0.079 ± 0.004
0.016 Max.
0.315 ± 0.012
0.567 MAX.
Company reserves the right to improve product design , functions and reliability without notice.
REV: A
Page 6
AQW-JZ001
Comchip Technology CO., LTD.
SMD Zener Diode
Marking Code
Part Number
Marking Code
ACZRM5221B ~ 5263B-HF
XXXX
XXXX
Product type marking code (see page.2~3)
Suggested PAD Layout
SOD-123FL
SIZE
(mm)
(inch)
2.90
0.132
B
1.10
0.031
C
1.10
0.039
D
4.00
0.163
E
1.60
0.100
D
A
A
E
C
B
Standard Packaging
REEL PACK
Case Type
SOD-123FL
REEL
Reel Size
( pcs )
(inch)
3,000
7
Company reserves the right to improve product design , functions and reliability without notice.
REV: A
Page 7
AQW-JZ001
Comchip Technology CO., LTD.
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