51
Revised: June 3, 2012
POLY-FUSE® Resettable PTCs
© 2012 Littelfuse, Inc
2920L Series
Surface Mount > 2920L Series
2920L Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/2920L.html for current information.
2920L Series
The 2920L Series PTC provides surface mount overcurrent
protection for medium voltage (≤60V) applications where
resettable protection is desired.
Electrical Characteristics
Part Number Marking I hold
(A)
I trip
(A)
V max
(Vdc)
I max
(A)
P d
typ.
(W)
Maximum Time
To Trip Resistance Agency
Approvals
Current
(A)
Time
(Sec.)
R min
(Ω)
R typ
(Ω)
R 1max
(Ω)
2920L030 LF030 0.30 0.60 60 10 1.50 1.50 3.00 1.200 3.000 4.800 XX
2920L050 LF050 0.50 1.00 60 10 1.50 2.50 4.00 0.350 0.870 1.400 XX
2920L075 LF075 0.75 1.50 30 40 1.50 8.00 0.30 0.350 0.670 1.000 XX
2920L075/60 LF075-60 0.75 1.50 60 10 1.50 8.00 0.30 0.300 0.60 0.950 XX
2920L100 LF100 1.10 2.20 33 40 1.50 8.00 0.50 0.120 0.270 0.410 XX
2920L125 LF125 1.25 2.50 15 40 1.50 8.00 2.00 0.070 0.160 0.250 XX
2920L150 LF150 1.50 3.00 33 40 1.50 8.00 2.00 0.080 0.150 0.230 XX
2920L185 LF185 1.85 3.70 33 40 1.50 8.00 2.50 0.050 0.110 0.150 XX
2920L200 LF200 2.00 4.00 15 40 1.50 8.00 5.00 0.050 0.090 0.125 XX
2920L200/24 LF200-24 2.00 4.00 24 40 1.50 8.00 5.00 0.050 0.090 0.125 XX
2920L250 LF250 2.50 5.00 15 40 1.50 8.00 10.00 0.035 0.060 0.085 XX
2920L260 LF260 2.60 5.00 6 40 1.50 8.00 10.00 0.025 0.050 0.075 XX
2920L300 LF300 3.00 5.00 6 40 1.50 8.00 20.00 0.015 0.033 0.048 XX
2920L300/15 LF300-15 3.00 5.00 15 40 1.50 8.00 20.00 0.015 0.033 0.048 XX
Description
I hold = Hold current: maximum current device will pass without tripping in 20°C still air.
I trip = Trip current: minimum current at which the device will trip in 20°C still air.
V max = Maximum voltage device can withstand without damage at rated current (I max)
I max = Maximum fault current device can withstand without damage at rated voltage (Vmax)
P d = Power dissipated from device when in the tripped state at 20°C still air.
R min = Minimum resistance of device in initial (un-soldered) state.
R typ = Typical resistance of device in initial (un-soldered) state.
R 1max = Maximum resistance of device at 20°C measured one hour after tripping or reflow soldering of 260°C for 20 sec.
Caution: Operation beyond the specified rating may result in damage and possible arcing and flame.
Agency Approvals
AGENCY AGENCY FILE NUMBER
E183209
R50119118
Features
Applications
t3P)4DPNQMJBOUMFBEGSFF
and halogen-free
t'BTUSFTQPOTFUPGBVMU
currents
t)JHIWPMUBHF
t-PXQSPmMF
t*&&QPSUQSPUFDUJPO
t1PXFSFEFUIFSOFUQPSU
QSPUFDUJPO*&&&BG
t"VUPNPUJWFFMFDUSPOJD
control module protection
t-PXWPMUBHFUFMFDPN
equipment protection
52
Revised: June 3, 2012
POLY-FUSE® Resettable PTCs
© 2012 Littelfuse, Inc.
Surface Mount > 2920L Series
2920L Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/2920L.html for current information.
Ambient Operation Temperature
-40°C -20°C 0°C 20°C 40°C 50°C 60°C 70°C 85°C
Part Number Hold Current (A)
2920L030 0.45 0.40 0.35 0.30 0.25 0.23 0.20 0.17 0.14
2920L050 0.76 0.67 0.59 0.50 0.42 0.38 0.33 0.29 0.23
2920L075 1.13 1.01 0.88 0.75 0.62 0.56 0.50 0.44 0.34
2920L075/60 1.13 1.01 0.88 0.75 0.62 0.56 0.50 0.44 0.34
2920L100 1.66 1.47 1.29 1.10 0.91 0.83 0.73 0.64 0.50
2920L125 1.89 1.68 1.46 1.25 1.04 0.94 0.83 0.73 0.56
2920L150 2.27 2.01 1.76 1.50 1.25 1.13 1.00 0.87 0.74
2920L185 2.80 2.47 2.17 1.85 1.54 1.39 1.22 1.07 0.85
2920L200 3.02 2.68 2.34 2.00 1.66 1.50 1.32 1.16 0.90
2920L200/24 3.14 2.77 2.42 2.00 1.73 1.56 1.38 1.20 0.98
2920L250 3.78 3.35 2.93 2.50 2.08 1.88 1.65 1.45 1.13
2920L260 3.64 3.25 2.91 2.60 2.26 2.08 1.95 1.74 1.48
2920L300 4.53 4.02 3.51 3.00 2.52 2.26 1.99 1.75 1.34
2920L300/15 4.20 3.85 3.44 3.00 2.69 2.50 2.31 2.12 1.83
Temperature Rerating
Temperature Rerating Curve
-40 -30 -20 -10 0 10 20 30 40 5060708085
10%
30%
50%
70%
90%
110 %
130%
150%
170%
Temperature (°C)
Percentage of Rated Current
Average Time Current Curves
The average time current curves and Temperature Rerating curve performance is affected
CZBOVNCFSPSWBSJBCMFTBOEUIFTFDVSWFTQSPWJEFEBTHVJEBODFPOMZ$VTUPNFSNVTU
verify the performance in their application.
2920L
0.10
1
10
100
1000
0.1 1 10 100
Current in Amperes
Time in Seconds
0.30A
0.50A
0.75A & 0.75A/60
1.00A
1.25A
1.50A
1.85A
2.00A/24V
2.50A
2.60A
3.00A/15V
53
Revised: June 3, 2012
POLY-FUSE® Resettable PTCs
© 2012 Littelfuse, Inc
2920L Series
Surface Mount > 2920L Series
2920L Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/2920L.html for current information.
Environmental Specifications
Soldering Parameters
Condition Reflow
Peak Temp/ Duration Time 260°C / 10 Sec
Time above liquids (TAL) 220°C 60 Sec ~ 100 Sec
Preheat 120°C~ 180°C 50 Sec ~ 150 Sec
Storage Condition ¡$_¡$<
=70%RH
t3FDPNNFOEFESFnPXNFUIPET*3WBQPSQIBTFPWFOIPUBJS
PWFO/2 environment for lead–free
t3FDPNNFOEFENBYJNVNQBTUFUIJDLOFTTJTNNJODI
t%FWJDFTDBOCFDMFBOFEVTJOHTUBOEBSEJOEVTUSZNFUIPETBOE
solvents.
Note: *GSFnPXUFNQFSBUVSFTFYDFFEUIFSFDPNNFOEFEQSPmMF
devices may not meet the performance requirements.
Operating/Storage
Temperature -40°C to +85°C
Maximum Device Surface
Temperature in Tripped
State
125°C
Passive Aging ¡$IPVST
-/+5% typical resistance change
Humidity Aging ¡$3)IPVST
-/+5% typical resistance change
Thermal Shock
.*-45%.FUIPE(
+85°C/-40°C 20 times
-30% typical resistance change
Solvent Resistance .*-o45%o.FUIPE
Vibration .*-o45%o$.FUIPE
$POEJUJPO"
Moisture Sensitivity Level -FWFM+o45%o$
Physical Specifications
Terminal Material Solder-Plated Copper (Solder Material:
Matte Tin(Sn))
Lead Solderability .FFUT&*"4QFDJmDBUJPO34&"/4*
+45%$BUFHPSZ
Preheating
120
180
220
260
060 to 100
Temperature (°C)
Soldering Cooling
120
50 to 150
Time(s)
54
Revised: June 3, 2012
POLY-FUSE® Resettable PTCs
© 2012 Littelfuse, Inc.
Surface Mount > 2920L Series
2920L Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/2920L.html for current information.
Dimensions (mm)
C
Top
View
Pad
Layout
Side
View
Bottom
View
5.30 mm
(.209”)
4.60 mm
(.181”)
2.0mm
(.079”)
D
MARKING CODE VARIES
WITH AMPERAGE AND VOLTAGE RATING
(SEE ELECTRICAL CHARACTERISTIC TABLE)
SHOWN ARE:
- 1.5A/33V RATING (LEFT)
- 2.0A/24V RATING (RIGHT)
E
A
B
150
150
200
-24
Part
Number
ABCD E
Inches mm Inches mm Inches mm Inches mm Inches mm
Min Max Min Max Min Max Min Max Min Max Min Max Min Max Min Max Min Max Min Max
2920L030 0.26 0.31 6.73 7.98 0.19 0.21 4.8 5.44 0.03 0.05 0.75 1.25 0.01 0.1 0.3 2.5 0.01 0.08 0.25 2
2920L050 0.26 0.31 6.73 7.98 0.19 0.21 4.8 5.44 0.03 0.05 0.75 1.25 0.01 0.1 0.3 2.5 0.01 0.08 0.25 2
2920L075 0.26 0.31 6.73 7.98 0.19 0.21 4.8 5.44 0.03 0.05 0.75 1.25 0.01 0.1 0.3 2.5 0.01 0.08 0.25 2
2920L075/60 0.26 0.31 6.73 7.98 0.19 0.21 4.8 5.44 0.05 0.06 1.20 1.80 0.01 0.1 0.3 2.5 0.01 0.08 0.25 2
2920L100 0.26 0.31 6.73 7.98 0.19 0.21 4.8 5.44 0.02 0.04 0.55 1 0.01 0.1 0.3 2.5 0.01 0.08 0.25 2
2920L125 0.26 0.31 6.73 7.98 0.19 0.21 4.8 5.44 0.02 0.04 0.55 1 0.01 0.1 0.3 2.5 0.01 0.08 0.25 2
2920L150 0.26 0.31 6.73 7.98 0.19 0.21 4.8 5.44 0.03 0.05 0.75 1.25 0.01 0.1 0.3 2.5 0.01 0.08 0.25 2
2920L185 0.26 0.31 6.73 7.98 0.19 0.21 4.8 5.44 0.03 0.05 0.75 1.25 0.01 0.1 0.3 2.5 0.01 0.08 0.25 2
2920L200 0.26 0.31 6.73 7.98 0.19 0.21 4.8 5.44 0.03 0.05 0.75 1.25 0.01 0.1 0.3 2.5 0.01 0.08 0.25 2
2920L200/24 0.26 0.31 6.73 7.98 0.19 0.21 4.8 5.44 0.03 0.05 0.75 1.25 0.01 0.1 0.3 2.5 0.01 0.08 0.25 2
2920L250 0.26 0.31 6.73 7.98 0.19 0.21 4.8 5.44 0.03 0.05 0.75 1.25 0.01 0.1 0.3 2.5 0.01 0.08 0.25 2
2920L260 0.26 0.31 6.73 7.98 0.19 0.21 4.8 5.44 0.02 0.04 0.55 1 0.01 0.1 0.3 2.5 0.01 0.08 0.25 2
2920L300 0.26 0.31 6.73 7.98 0.19 0.21 4.8 5.44 0.03 0.05 0.75 1.25 0.01 0.1 0.3 2.5 0.01 0.08 0.25 2
2920L300/15 0.26 0.31 6.73 7.98 0.19 0.21 4.8 5.44 0.03 0.05 0.75 1.25 0.01 0.1 0.3 2.5 0.01 0.08 0.25 2
55
Revised: June 3, 2012
POLY-FUSE® Resettable PTCs
© 2012 Littelfuse, Inc
2920L Series
Surface Mount > 2920L Series
2920L Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/2920L.html for current information.
Part Ordering Number System
PACKAGING STYLE
L: LITTELFUSE SURFACE MOUNT PPTC
QUANTITY CODE: D=1500 M=1000 P=2000
R: Tape & Reel
2920 L xxx /xx D R
SERIES
DEVICE SIZE CODE (0.29 x 0.20 inch)
I
HOLD
HOLD CURRENT CODE
(Refer to Electrical Characteristics Table)
SPECIAL VOLTAGE RATING ITEM
(Not applicable to all parts. Refer to Electrical
Characteristics Table for additional information)
Packaging
Part Number Ordering Number Halogen
Free
I hold
(A)
I hold
Code
Voltage
Option
Packaging
Option Quantity Quantity &
Packaging Codes
2920L030 -%3 Y
es 0.30 030 Tape and Reel 1500 %3
2920L050 -%3 Yes 0.50 050 Tape and Reel 1500 %3
2920L075 -%3 Yes 0.75 075 Tape and Reel 1500 %3
2920L075/60 2920L075/60MR Yes 0.75 075 /60 Tape and Reel 1000 MR
2920L100 2920L100PR Yes 1.10 100 Tape and Reel 2000 PR
2920L125 2920L125PR Yes 1.25 125 Tape and Reel 2000 PR
2920L150 -%3 Yes 1.50 150 Tape and Reel 1500 %3
2920L185 -%3 Yes 1.85 185 Tape and Reel 1500 %3
2920L200 -%3 Yes 2.00 200 Tape and Reel 1500 %3
2920L200/24 -%3 Yes 2.00 200 /24 Tape and Reel 1500 %3
2920L250 -%3 Yes 2.50 250 Tape and Reel 1500 %3
2920L260 2920L260PR Yes 2.60 260 Tape and Reel 2000 PR
2920L300 -%3 Yes 3.00 300 Tape and Reel 1500 %3
2920L300/15 -%3 Yes 3.00 300 /15 Tape and Reel 1500 %3
56
Revised: June 3, 2012
POLY-FUSE® Resettable PTCs
© 2012 Littelfuse, Inc.
Surface Mount > 2920L Series
2920L Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/2920L.html for current information.
TAPE SPECIFICATIONS: EIA-481-1 (mm)
REEL DIMENSIONS:
EIA-481-1 (mm)
2920L030,
2920L050,
2920L075
2920L100,
2920L125,
2920L260
2920L150, 2920L185,
2920L200, 2920L250,
2920L200/24,
2920L300,
2920L300/15
2920L075/60
W16.0+/- 0.30 16.0+/- 0.30 16.0+/- 0.30 16.0+/- 0.30 H16.0+/- 0.2
F7.5+/- 0.05 7.5+/- 0.05 7.5+/- 0.05 7.5+/- 0.10 W17.0+/- 0.2
E11.75+/- 0.10 1.75+/- 0.10 1.75+/- 0.10 1.75+/- 0.10 DØ 60.2+/−0.5
D01.55+/- 0.05 1.55+/- 0.05 1.55+/- 0.05 1.50+/- 0.10 FØ 13.0+/- 0.5
D11.5+/- 0.10 1.5+/- 0.10 1.5+/- 0.10 1.5 (min) CØ 178+/- 1.0
P04.0+/- 0.10 4.0+/- 0.10 4.0+/- 0.10 4.0+/- 0.10 H111+/- 0.5
P18.0+/- 0.10 8.0+/- 0.10 8.0+/- 0.10 8.0+/- 0.10 W12.5+0.5
P22.0+/- 0.05 2.0+/- 0.05 2.0+/- 0.05 2.0+/- 0.10 W23.0+0.5
A05.45+/- 0.10 5.45+/- 0.10 5.45+/- 0.10 5.45+/- 0.10 W34.0+0.5
B07.65+/- 0.10 7.65+/- 0.10 7.65+/- 0.10 7.90+/- 0.10
T0.25+/- 0.10 0.25+/- 0.10 0.25+/- 0.10 0.30+/- 0.05
KO1.25+/- 0.10 1.00+/- 0.10 1.45+/- 0.10 2.00+/- 0.10
Leader min. 390 390 390 390
Trailer min. 160 160 160 160
Tape and Reel Specifications
Tape and Reel Diagram
D2
K0B0
A0
T
F
W
E1
P2
D0
P0
P1
C
D
H
W
W2
W3
W1
H1