PRODUCT DATASHEET
Surface Mount PTC Devices
ASMD2920 Series Surface Mount PTC Devices
ASMD2920 Series Surface Mount PTC Devices
Description
The ASMD2920 series provides surface mount
resettable overcurrent protection with holding current
from 0.3A to 3.0A.
This series is suitable for applications with higher holding
current and higher working voltage up to 60V.
Features
● RoHS compliant and lead-free
● Low profile
● Halogen-free
● Fast response to fault current
● High voltage
● Compatible with high temperature solders
Agency Approvals
Agency
Applications
File Number
pending
pending
● Power over Ethernet(POE)
● IEEE 1394 port protection
● Powered USB for POS and IPC
● Low voltage telecom equipment
● Automotive electronics control module protection
Industrial control
Security systems
Regulation
Standard
2002/95/EC
EN14582
JDT FUSE Industrial Corp.
www.jdtfuse.com
Page 1/7
ASMD2920 Series Surface Mount PTC Devices
Performance Specification
Model
V max
(V dc)
I max
(A)
I hold
I trip
Maximum
Time To Trip
Pd
@25°C
(A)
@25°C
(A)
Typ.
(W)
Resistance
Current
(A)
Time
(Sec)
R i min
R1max
(Ω)
(Ω)
ASMD2920-030
60
100
0.30
0.60
1.5
1.5
3.0
0.600
4.800
ASMD2920-050
60
100
0.50
1.00
1.5
2.5
4.0
0.180
1.400
ASMD2920-075
33
100
0.75
1.50
1.5
8.0
0.3
0.100
1.000
ASMD2920-100
33
100
1.10
2.20
1.5
8.0
0.5
0.065
0.410
ASMD2920-125
33
100
1.25
2.50
1.5
8.0
2.0
0.050
0.250
ASMD2920-150
33
100
1.50
3.00
1.5
8.0
2.0
0.035
0.230
ASMD2920-185
33
100
1.85
3.70
1.5
8.0
2.5
0.030
0.150
ASMD2920-200
24
100
2.00
4.00
1.5
8.0
4.5
0.020
0.120
ASMD2920-250
16
100
2.50
5.00
1.5
8.0
16.0
0.020
0.085
ASMD2920-260
6
100
2.60
5.20
1.5
8.0
10.0
0.014
0.075
ASMD2920-300
Test
ASMD2920-300-16V
6
40
3.00
6.00
1.5
8.0
20.0
0.012
0.048
16
100
3.00
6.00
1.5
8.0
20.0
0.012
0.048
ASMD2920-400
16
40
4.00
8.00
1.5
20.0
4.0
0.008
0.040
ASMD2920-500
6
40
5.00
10.00
1.5
25.0
5.0
0.005
0.031
ASMD2920-500-12V
12
40
5.00
10.00
1.5
25.0
5.0
0.005
0.031
ASMD2920-500-16V
16
40
5.00
10.00
1.5
25.0
5.0
0.005
0.031
ASMD2920-600
12
40
6.00
12.00
1.5
25.0
6.0
0.004
0.020
ASMD2920-700
12
40
7.00
14.00
1.5
25.0
6.0
0.0025
0.010
I hold = Hold Current. Maximum current device will not trip in 25°C still air.
I trip = Trip Current. Minimum current at which the device will always trip in 25°C still air.
V max = Maximum operating voltage device can withstand without damage at rated current (Imax).
I max = Maximum fault current device can withstand without damage at rated voltage (V max).
Pd
= Power dissipation when device is in the tripped state in 25°C still air environment at rated voltage.
Ri min/max = Minimum/Maximum device resistance prior to tripping at 25°C.
R1max = Maximum device resistance is measured one hour post reflow.
CAUTION : Operation beyond the specified ratings may result in damage and possible arcing and flame.
Environmental Specifications
Conditions
Resistance change
Passive aging
+85°C, 1000 hrs.
±5% typical
Humidity aging
+85°C, 85% R.H. , 168 hours
±5% typical
Thermal shock
+85°C to -40°C, 20 times
±33% typical
Resistance to solvent
MIL-STD-202,Method 215
No change
Vibration
MIL-STD-202,Method 201
No change
Ambient operating conditions : - 40 °C to +85 °C
Maximum surface temperature of the device in the tripped state is 125 °C
JDT FUSE Industrial Corp.
www.jdtfuse.com
Page 2/7
ASMD2920 Series Surface Mount PTC Devices
Thermal Derating Curve
Derating Curves for ASMD2920 Series
Percentage of Derated Current
160
140
120
100
80
60
40
20
0
-40
-20
0
20
40
60
80
Temperature (°C )
Average Time-Current Curve
100
0.30A
TIME IN SECOND
0.50A
0.75A
10
1.00A
1.25A
1
1.50A
1.85A
2.0A
0.1
2.50A
2.60A
3.00A
0.01
0.1
1
10
100
CURRENT IN AMPERES
JDT FUSE Industrial Corp.
www.jdtfuse.com
Page 3/7
ASMD2920 Series Surface Mount PTC Devices
Thermal Derading Chart
Maximum ambient operating temperature (Tmao) vs. hold current (Ihold)
Model
- 40°C
- 20°C
0°C
25°C
40°C
50°C
60°C
70°C
85°C
ASMD2920-030
0.45
0.40
0.35
0.30
0.25
0.23
0.20
0.17
0.14
ASMD2920-050
0.76
0.67
0.59
0.50
0.42
0.38
0.33
0.29
0.23
ASMD2920-075
1.13
1.01
0.88
0.75
0.62
0.56
0.50
0.44
0.34
ASMD2920-100
1.66
1.47
1.29
1.10
0.91
0.83
0.73
0.64
0.50
ASMD2920-125
1.89
1.68
1.46
1.25
1.04
0.94
0.83
0.73
0.56
ASMD2920-150
2.27
2.01
1.76
1.50
1.25
1.13
1.00
0.87
0.74
ASMD2920-185
2.80
2.47
2.17
1.85
1.54
1.39
1.22
1.07
0.85
ASMD2920-200
3.02
2.68
2.34
2.00
1.66
1.50
1.32
1.16
0.90
ASMD2920-250
3.78
3.35
2.93
2.50
2.08
1.88
1.65
1.45
1.13
ASMD2920-260
3.64
3.25
2.91
2.60
2.26
2.08
1.95
1.74
1.13
ASMD2920-300
4.53
4.02
3.51
3.00
2.52
2.26
1.99
1.75
1.34
ASMD2920-400
6.04
5.36
4.68
4.00
3.36
3.01
2.65
2.33
1.79
ASMD2920-500
7.55
6.70
5.85
5.00
4.20
3.77
3.32
2.92
2.23
ASMD2920-600
8.60
7.70
6.80
6.00
4.95
4.60
4.06
3.65
3.15
Soldering Parameters
TP 20~40 S
TP 260
Ramp-up
Profile Feature
Critical Zone
TL to TP
TL 217
tL
Tsmax
Temperature (°C )
Preheat
Tsmin
Ramp-down
ts
Preheat 60~180 s
25
3℃/second mac.
(Ts max to T p)
60~150 s
200
150
Average Ramp-Up Rate
Pb-Free Assembly
t 25°C to peak
Time
Recommended reflow methods: IR, vapor phase oven,
hot air oven, N2 environment for lead-free
Recommended maximum paste thickness is 0.25mm
Devices can be cleaned using standard industry methods
and solvents.
Note 1:All temperature refer to topside of the package,
measured on the package body surface.
Note 2: If reflow temperatures exceed the recommended
profile, devices may not meet the performance
requirements.
JDT FUSE Industrial Corp.
www.jdtfuse.com
-Temperature Min(Ts min)
150℃
-Temperature Max(Ts max)
200℃
-Time(Ts min to Ts max)
60~180 seconds
Time maintained above:
-Temperature(TL)
217℃
-Time(tL)
60~150 seconds
Peak Temperature(Tp)
260℃
Ramp-Down Rate
6℃/second max.
Time 25℃ to Peak Temperature 8 minutes max
Storage Condition
0℃~35℃,≤70%RH
Page 4/7
ASMD2920 Series Surface Mount PTC Devices
Physical Dimensions(mm.)
A
Model
B
C
D
E
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Min.
ASMD2920-030
6.73
7.98
4.80
5.44
0.60
1.30
0.30
0.25
ASMD2920-050
6.73
7.98
4.80
5.44
0.60
1.30
0.30
0.25
ASMD2920-075
6.73
7.98
4.80
5.44
0.60
1.30
0.30
0.25
ASMD2920-100
6.73
7.98
4.80
5.44
0.40
1.00
0.30
0.25
ASMD2920-125
6.73
7.98
4.80
5.44
0.40
0.90
0.30
0.25
ASMD2920-150
6.73
7.98
4.80
5.44
0.40
0.90
0.30
0.25
ASMD2920-185
6.73
7.98
4.80
5.44
0.30
0.90
0.30
0.25
ASMD2920-200
6.73
7.98
4.80
5.44
0.30
0.90
0.30
0.25
ASMD2920-250
6.73
7.98
4.80
5.44
0.30
0.90
0.30
0.25
ASMD2920-260
6.73
7.98
4.80
5.44
0.30
0.90
0.30
0.25
ASMD2920-300
6.73
7.98
4.80
5.44
0.60
1.30
0.30
0.25
ASMD2920-400
6.73
7.98
4.80
5.44
0.60
1.30
0.30
0.25
ASMD2920-500
6.73
7.98
4.80
5.44
0.60
1.30
0.30
0.25
ASMD2920-500-12V
6.73
7.98
4.80
5.44
0.60
1.30
0.30
0.25
ASMD2920-500-16V
6.73
7.98
4.80
5.44
0.80
1.50
0.30
0.25
ASMD2920-600
6.73
7.98
4.80
5.44
0.80
1.50
0.30
0.25
ASMD2920-700
6.73
7.98
4.80
5.44
0.80
1.50
0.30
0.25
Termination Pad Characteristics
Terminal pad materials:Tin-plated Nickel-Copper
Terminal pad solder ability:Meets EIA specification RS186-9E and ANSI/J-STD-002 Category 3.
Packaging Quantity and Marking
5.1±0.1
Part Number
5.6±0.1
ASMD2920 Series
Quantity
2,000 pcs/reel
Tape & reel packaging per EIA481-1
2.3±0.1
JDT FUSE Industrial Corp.
www.jdtfuse.com
2.3±0.1
Page 5/7
ASMD2920 Series Surface Mount PTC Devices
Tape And Reel Specifications (mm)
Governing Specifications
EIA 481-1
W
16.00 ± 0.3
P0
4.00 ± 0.10
P1
8.00 ± 0.10
P2
2.00 ± 0.05
A0
5.70 ± 0.10
B0
8.00 ± 0.10
B1max.
12.10
D0
1.50 + 0.1, -0
F
7.50 ± 0.05
E1
1.75 ± 0.10
E2min.
14.25
T
0.60
T1max.
0.10
K0
0.80 ± 0.1
Leader min.
390
Trailer min.
160
Reel Dimensions
A max.
178
N min.
60
W1
16.40 ± 0.5
W2
22.40
Storage And Handling
● Storage conditions:40°C max, 70% R.H.
● Devices may not meet specified performance
if storage conditions are exceeded.Technology Corp.
JDT FUSE Industrial Corp.
www.jdtfuse.com
P1
P2
D0
P0
E1
F
W
T
D2
K0
A0
B0
H
W4
W3
D
C
W2
W
F
W1
H1
Page 6/7
ASMD2920 Series Surface Mount PTC Devices
Part Number System
ASMD 2920 -
Special Voltage Rating(Optional)
Holding Current Rating
Device Dimensions:
Length/width(Unit:1/100 inch) Size 7555 mm / 2920 inch
Surface Mount Device
Cross Reference
Cross Reference
Model
Tyco / PolySwitch®
Littelfuse / POLY-FUSE®
Polytronics / EVERFUSE®
ASMD2920-030
SMD030F
2920L030
SMD2920P030TF
ASMD2920-050
SMD050F
2920L050
SMD2920P050TF
ASMD2920-075
SMD075F
2920L075
SMD2920P075TF
ASMD2920-100
SMD100F/33
2920L100
SMD2920P110TF
ASMD2920-125
SMD125F
2920L125
SMD2920P125TF
ASMD2920-150
SMD150F/33(3425)
2920L150
SMD2920P150TF
ASMD2920-185
SMD185F(3425)
2920L185
SMD2920P185TF
ASMD2920-200
SMD200F(3425)
2920L200
SMD2920P200TF
ASMD2920-250
SMD250F(3425)
2920L250
SMD2920P250TF
ASMD2920-260
SMD260F
2920L260
SMD2920P260TF
ASMD2920-300
SMD300F
2920L300
SMD2920P300TF
ASMD2920-300-16
-
2920L300/15
SMD2920P300TF/15
ASMD2920-400
-
-
-
ASMD2920-500
-
-
-
ASMD2920-500-12V
-
-
-
ASMD2920-500-16V
-
-
-
ASMD2920-600
-
-
-
ASMD2920-700
-
-
-
“PolySwitch” is a registered trademark of Tyco Electronics.
“POLY-FUSE” is a registered trademark of Littelfuse,Inc.
“EVERFUSE” is a registered trademark of Polytronics Technology Corp.
JDT FUSE Industrial Corp.
www.jdtfuse.com
Page 7/7
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