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ASM22F  
2-Line Uni-directional TVS Diode Array  
Description  
Mechanical Characteristics  
The ASM22F is an uni-directional TVS diode array, utiliz-  
ing leading monolithic silicon technology to provide fast  
response time and low ESD clamping voltage, making this  
device an ideal solution for protecting sensitive semicon-  
ductor components from damage. The ASM22F complies  
with the IEC 61000-4-2 (ESD) with ±30kV air and ±30kV  
contact discharge. It is assembled into a lead-free SOT-23  
package. It is designed to protect components which are  
connected to data and transmission lines from voltage  
surges.  
Package: SOT-23  
Lead Finish: Matte Tin  
Case Material: “Green” Molding Compound.  
Terminal Connections: See Diagram Below  
Marking Information: See Below  
Applications  
Peripherals  
Industrial Equipment  
Features  
Notebook Computers  
400W peak pulse power (8/20μs)  
Protects one two uni-directional line(s)  
Ultra low leakage: nA level  
Portable Instrumentation  
Microprocessor Based Equipment  
Cell Phone Handsets and Accessories  
Personal Digital Assistants (PDAs) and Pagers  
Operating voltage: 22V  
Low clamping voltage  
Marking Information  
Complies with following standards:  
– IEC 61000-4-2 (ESD) immunity test  
Air discharge: ±30kV  
Contact discharge: ±30kV  
3
– IEC61000-4-5 (Lightning) 10A (8/20μs)  
RoHS Compliant  
S22F = Device Marking Code  
S22F  
1
2
Ordering Information  
Dimensions and Pin Configuration  
Part Number  
Packaging  
3000/Tape & Reel  
Reel Size  
1
3
2
ASM22F  
7 inch  
Circuit and Pin Schematic  
Revision _1.0  
1 of 5  
www.appliedpowermicro.com  
ASM22F  
Absolute Maximum Ratings (TA=25°C unless otherwise specified)  
Parameter  
Symbol  
Ppk  
Value  
400  
Unit  
W
Peak Pulse Power (8/20µs)  
Peak Pulse Current (8/20µs)  
IPP  
10  
A
ESD per IEC 61000−4−2 (Air)  
±30  
±30  
VESD  
kV  
ESD per IEC 61000−4−2 (Contact)  
Operating Temperature Range  
Storage Temperature Range  
TJ  
−55 to +125  
−55 to +150  
°C  
°C  
Tstg  
Electrical Characteristics (TA=25°C unless otherwise specified)  
Parameter  
Symbol Min  
Typ  
Max  
Unit Test Condition  
Reverse Working Voltage  
Reverse Breakdown Voltage  
Reverse Leakage Current  
Clamping Voltage  
VRWM  
22  
29.5  
0.2  
30  
V
VBR  
IR  
27  
V
µA  
V
IT = 1mA  
VRWM = 22V, any I/O pin to  
ground  
IPP = 1A (8 x 20µs pulse), any I/O  
pin to ground  
VC  
IPP = 10A (8 x 20µs pulse), any I/  
O pin to ground  
Clamping Voltage  
VC  
CJ  
40  
V
VR = 0V, f = 1MHz, any I/O pin to  
ground  
Junction Capacitance  
50  
pF  
Revision _1.0  
2 of 5  
www.appliedpowermicro.com  
ASM22F  
Typical Performance Characteristics (TA=25°C unless otherwise Specified)  
Junction Capacitance vs. Reverse Voltage  
Peak Pulse Power vs. Pulse Time  
Clamping Voltage vs. Peak Pulse Current  
Power Derating Curve  
Note：Data is taken with a 10x attenuator  
ESD Clamping Voltage  
8 X 20μs Pulse Waveform  
8 kV Contact per IEC61000−4−2  
Revision _1.0  
3 of 5  
www.appliedpowermicro.com  
ASM22F  
SOT-23 Package Outline Drawing  
DIMENSIONS  
MILLIMETERS  
INCHES  
NOM  
- -  
SYM  
MIN  
0.90  
NOM  
MAX  
MIN  
MAX  
A
A1  
A2  
b
- -  
1.15  
0.10  
1.05  
0.50  
0.15  
3.00  
1.40  
0.035  
0.045  
0.00  
0.90  
0.30  
0.08  
2.80  
1.20  
- -  
- -  
- -  
- -  
- -  
- -  
0.000  
0.035  
0.012  
0.003  
0.110  
0.047  
- -  
- -  
- -  
- -  
- -  
- -  
0.004  
0.041  
0.020  
0.006  
0.118  
0.055  
c
D
E
E1  
e
2.25  
- -  
2.55  
0.089  
0.100  
0.95TYP  
0.037TYP  
e1  
L
1.80  
- -  
0.55REF  
- -  
2.00  
0.071  
- -  
0.022REF  
- -  
0.079  
L1  
Θ
0.30  
0.50  
0.012  
0.020  
- -  
- -  
0°  
8°  
0°  
8°  
Revision _1.0  
4 of 5  
www.appliedpowermicro.com  
ASM22F  
Suggested Land Pattern  
DIMENSIONS  
INCHES MILLIMETERS  
SYM  
C
E
.087  
.037  
.075  
.031  
.039  
.055  
.141  
2.20  
0.95  
1.90  
0.80  
1.00  
1.40  
3.60  
E1  
G
X
Y
Z
Contact Information  
Applied Power Microelectronics Inc.  
Website: http://www.appliedpowermicro.com  
Email: sales@appliedpowermicro.com  
Phone: +86 (0519) 8399 3606  
Applied Power Microelectronics Inc. (APM) reserves the right to make changes to the product specification and data in this document without notice. APM makes no warranty, representation or  
guarantee regarding the suitability of its products for any particular purpose, nor does APM assume any liability arising from the application or use of any products or circuits, and specifically dis-  
Revision _1.0  
5 of 5  
www.appliedpowermicro.com