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ASM24Q  
2-Line uni-directional TVS Diode Array  
Description  
Mechanical Characteristics  
The ASM24Q 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 semi-  
conductor components from damage. The ASM24Q com-  
plies 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. Qualified according to AEC-Q101 and  
recommended for use in automotive applications.  
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Package: SOT-23  
Lead Finish: Matte Tin  
Case Material: “Green” Molding Compound.  
Terminal Connections: See Diagram Below  
Marking Information: See Below  
Applications  
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Automotive applications  
Cellular Handsets and Accessories  
Notebooks and Handhelds  
Portable Instrumentation  
Set Top Box  
Features  
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250W peak pulse power (8/20μs)  
Protects two uni-directional lines  
Ultra low leakage: nA level  
Operating voltage: 24V  
Industrial Controls  
Server and Desktop PC  
Marking Information  
Low clamping voltage  
3
Complies with following standards:  
– IEC 61000-4-2 (ESD) immunity test  
Air discharge: ±30kV  
S24  
S24 = Device Marking Code  
Contact discharge: ±30kV  
– IEC61000-4-5 (Lightning) 5A (8/20μs)  
RoHS Compliant  
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1
2
AEC-Q101 qualified  
Equivalent Circuit and Pin Configuration  
Ordering Information  
Part Number  
Packaging  
3000/Tape & Reel  
Reel Size  
ASM24Q  
7 inch  
Circuit and Pin Schematic  
Revision_1.0  
1 of 5  
www.appliedpowermicro.com  
ASM24Q  
2-Line uni-directional TVS Diode Array  
Absolute Maximum Ratings (TA=25°C unless otherwise specified)  
Parameter  
Symbol  
Value  
Unit  
Peak Pulse Power (8/20µs)  
Ppk  
250  
W
Peak Pulse Current (8/20µs)  
IPP  
5
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)  
ASM24Q  
Parameter  
Symbol Min  
Typ  
Max  
Unit Test Condition  
Reverse Working Voltage  
VRWM  
24  
V
Breakdown Voltage  
Reverse Leakage Current  
Forward Voltage  
VBR  
IR  
27  
V
μA  
V
IT = 1mA  
0.2  
1.2  
36  
VRWM = 24V  
VF  
VC  
VC  
0.8  
IF = 10mA  
Clamping Voltage  
Clamping Voltage  
V
IPP = 1A (8 x 20µs pulse)  
IPP = 5A (8 x 20µs pulse)  
50  
V
VR = 0V, f = 1MHz, Pin 1 to Pin 3  
or Pin 2 to Pin 3  
Junction Capacitance  
Junction Capacitance  
CJ  
CJ  
40  
20  
pF  
pF  
VR = 0V, f = 1MHz, Pin 1 to Pin 2  
Revision_1.0  
2 of 5  
www.appliedpowermicro.com  
ASM24Q  
2-Line uni-directional TVS Diode Array  
Typical Performance Characteristics (TA=25°C unless otherwise Specified)  
Peak Pulse Power vs. Pulse Time  
Junction Capacitance vs. Reverse Voltage  
Clamping Voltage vs. Peak Pulse Current (tp = 8/20μs)  
TLP Measurement  
ESD Clamping Voltage  
8 X 20μs Pulse Waveform  
8 kV Contact per IEC61000−4−2  
Revision_1.0  
3 of 5  
www.appliedpowermicro.com  
ASM24Q  
2-Line uni-directional TVS Diode Array  
SOT-23 Package Outline Drawing  
DIMENSIONS  
MILLIMETERS  
INCHES  
NOM  
- -  
SYM  
MIN  
0.90  
0.00  
0.90  
0.30  
0.08  
2.80  
1.20  
NOM  
- -  
MAX  
MIN  
MAX  
0.045  
0.004  
0.041  
0.020  
0.006  
0.118  
0.055  
A
A1  
A2  
b
1.15  
0.10  
1.05  
0.50  
0.15  
3.00  
1.40  
0.035  
0.000  
0.035  
0.012  
0.003  
0.110  
0.047  
- -  
- -  
- -  
- -  
- -  
- -  
c
- -  
- -  
D
- -  
- -  
E
- -  
- -  
E1  
e
2.25  
- -  
0.95TYP  
- -  
2.55  
0.089  
0.100  
0.037TYP  
e1  
L
1.80  
2.00  
0.071  
- -  
0.022REF  
- -  
0.079  
0.55REF  
- -  
L1  
Θ
0.30  
0.50  
0.012  
0.020  
- -  
- -  
0°  
8°  
0°  
8°  
Revision_1.0  
4 of 5  
www.appliedpowermicro.com  
ASM24Q  
2-Line uni-directional TVS Diode Array  
DIMENSIONS  
SYM  
INCHES  
MILLIMETERS  
C
E
.087  
2.20  
.037  
.075  
.031  
.039  
.055  
.141  
0.95  
1.90  
0.80  
1.00  
1.40  
3.60  
E1  
G
X
Y
Z
Applied Power Microelectronics Inc. (APM) reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any  
time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. APM makes no warranty, representation or guarantee regarding the suitabil-  
ity 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 disclaims any and all liability, including  
without limitation special, consequential or incidental damages.  
Revision_1.0  
5 of 5  
www.appliedpowermicro.com