This is information on a product in full production.
October 2013 DocID022184 Rev 4 1/8
ESDCAN24-2BLY
Automotive dual-line Transil™,
transient voltage suppressor (TVS) for CAN bus
Datasheet - production data
Figure 1. Functional diagram
Features
Dual-line ESD and EOS prot ec tion
Bidirectional device
Max pulse power: 230 W (8/20 µs)
Stand-off voltage 24 V
Low clamping factor VCL/VBR
Fast response time
Low leakage current
Small plastic package
Benefits
ESD and EOS protection for CAN transceiver
SOT23 package for space saving on high
density printed circuit boar d
Transil diodes providing high overvoltage
protection by clamping action and
instantaneous response to transient
overvoltages
Complies with the following standards
ISO 10605 - C = 150 pF, R = 330 
– 30 kV (air discharge)
– 30 kV (contact discharge)
ISO 10605 - C = 330 pF, R = 330 
– 30 kV (air discharge)
– 30 kV (contact discharge)
ISO 7637-3:
– Pulse 3a: Vs = -150 V
– Pulse 3b: Vs = +100 V
Application
Automotive controller area network (CAN) bus
lines where electrostatic discharge and other
transients must be suppressed.
Description
The ESDCAN24-2BLY is a dual-line Transil
specifically designed for the protection of the
automotive CAN bus lines against electrostatic
discharge (ESD).
TM: Transil is a trademark of STMicroelectronics
SOT23-3L
1
2
3
1
2
3
www.st.com
Characteristics ESDCAN24-2BLY
2/8 DocID022184 Rev 4
1 Characteristics
Figure 2. Electrical characteristics (definitions)
Table 1. Absolute maximum ratings (Tamb = 25°C)
Symbol Parameter Value Unit
VPP Electrostatic discharge
capability
ISO 10605 - C = 150 pF, R = 330 
Contact discharge
Air discharge 30
30
kV
ISO 10605 - C = 330 pF, R = 330 
Contact discharge
Air discharge 30
30
HBM MIL STD 883 8
PPP Peak pulse power dissipation 8/20 µs)(1) Tj initial = Tamb 230 W
IPP Peak pulse current typical value (8/20 µs) 5.5 A
TjMaximum junction temperature 150 °C
Top Operating junction te mperature range -40 to +125 °C
Tstg Storage temperature range -55 to +150 °C
1. For a surge greater than the maximum values, the diode will fail in short-circuit.
V
I
VCL
VCL
VBR
VBR
VRM
VRM
IRM
IPP
Slope: 1/Rd
Symbol Parameter
V = Breakdown voltage
V = Stand-off voltage
V = Clamping voltage
I = Peak pulse current
BR
RM
CL
PP
I = Leakage current @ V
RM RM
Table 2. Electrical characteristics (values, Tamb = 25 °C)
Symbol Test conditions Min. Typ. Max. Unit
VRM Stand-off voltage 24 V
VBR IR = 1 mA 26.2 32 V
IRM VRM = 24 V 100 nA
VCL Pulse ISO 7637-3 Pulse 3b 35 V
VCL Pulse ISO 7637-3 Pulse 3a (negative pulse) -35 V
VCL IPP = 5 A, 8/20µs 40 V
T(1) Voltage temperature coefficient 9 10-4/°C
CV
R = 0 V DC, F = 1 MHz 30 pF
1. VBR = T x (Tamb -25) x VBR(25 °C)
DocID022184 Rev 4 3/8
ESDCAN24-2BLY Characteristics
8
Figure 3. Response to ISO 7637-3 Pulse 3a Figure 4. Response to ISO 7637-3 Pulse 3b
100 ns/div
Voltage (10 V/div)
Current (0.5 A/div)
100 ns/div
Voltage (10 V/div)
Current (0.5 A/div)
Figure 5. ESD response to ISO 10605 -
C = 330 pF, R = 330 (+25 kV air discharge) Figure 6. ESD response to ISO 10605 -
C = 330 pF, R = 330 (-25 kV air discharge)
100 ns/div
Voltage (10 V/div)
100 ns/div
Voltage (10 V/div)
Figure 7. Peak pulse power dissipation versus
initial junction temperature (maximum values) Figure 8. Peak pulse power dissipation versus
pulse duration (maximum values)
0
50
100
150
200
250
300
350
400
25 50 75 100 125 150 175
P (W)
PP
T (°C)
j
Exponential waveform : 8/20 µs
1
10
100
1000
10 100 1000
T = 25 °C
direct and reverse
exponential waveform
j
P (W)
PP
t (µs)
p
Application and design guidelines ESDCAN24-2BLY
4/8 DocID022184 Rev 4
2 Application and design guidelines
More information is available in the ST Application no te AN2689 “Protection of automotive
electronics from electrical hazards, guidelines for design and component selection”.
Figure 9. Clamping voltage versus peak pulse
current (typical values, exponential waveform
8/20 µs)
Figure 10. Juncti on capa cit ance versus reverse
voltage applied (typical values)
0.1
1.0
10.0
25 30 35 40 45
V (V)
CL
Direct and reverse
I (A)
PP
T = -40 °C
j
T = 150 °C
j
T = 25 °C
j
Figure 11. Leakage current versus junction
temperature (ty pical values) Figure 12. S21 attenuation measurement results
of each channel
0.01
0.10
1.00
10.00
25 50 75 100 125
I (nA)
r
T (°C)
j
V = V = 24 V
DIRECT/REVERSE
RRM
S21 (dB)
10M 30M 100M 300M 1G 3G
-40
-35
-30
-25
-20
-15
-10
-5
0
F (Hz)
DocID022184 Rev 4 5/8
ESDCAN24-2BLY Package information
8
3 Package information
Epoxy meets UL94, V0
Lead-free p ackages
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK® is an ST trademark.
Figure 13. SOT23-3L dimension definitions
A1
A
L
L1
H
B
E
D
e
e1
S
c
a
Gauge
Plane 0.25
Package information ESDCAN24-2BLY
6/8 DocID022184 Rev 4
Figure 14. Footprint (dimensions in mm)
Table 3. SOT23-3L dimension values
Ref.
Dimensions
Millimeters Inches
Min. Max. Min. Max.
a0°8°0°8°
A 0.89 1.4 0.035 0.055
A1 0 0.1 0 0.004
B 0.3 0.51 0.012 0.02
c 0.085 0.18 0.003 0.007
D 2.75 3.04 0.108 0.12
e 0.85 1.05 0.033 0.041
e1 1.7 2.1 0.067 0.083
E 1.2 1.6 0.047 0.063
H 2.1 2.75 0.083 0.108
L 0.6 typ. 0.024 typ.
L1 0.25 0.55 0.010 0.022
S 0.35 0.65 0.014 0.026
0.95 0.61
1.26
3.25
0.73
DocID022184 Rev 4 7/8
ESDCAN24-2BLY Ordering information
8
4 Ordering information
Figure 15. Ordering information scheme
5 Revision history
Table 4. Ordering information
Order code Marking Package Weight Base qty Delivery mode
ESDCAN24-2BLY EL24 SOT-23 9.795 mg 3000 Tape and reel
ESD CAN 24 - 2 B L Y
ESD: ESD protection
Application
Controller area network
Stand-off voltage VRM
24 = 24 V maximum
Number of protected lines
2 = 2 lines
Directionality
B = bi-directional
Package
L = SOT23-3L
Automotive grade
Table 5. Document revision history
Date Revision Changes
29-May-2012 1 First issue.
04-Sep-2012 2 Update values for VRM in Table 2. Updated Figure 10,
Figure 11, and Figure 15.
07-Nov-2012 3 Added dimensions a and L1 in Table 3.
30-Oct-2013 4 Clarified references to ISO 7637. Updated Figure 3, Figure 4,
Figure 5, Figure 6, and Figure 12.
ESDCAN24-2BLY
8/8 DocID022184 Rev 4
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