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POLYFUSE(R) Resettable PTCs
Surface Mount
2920L Series
Description The 2920L series device provides surface mount overcurrent protection for medium voltage (60V) applications where resettable protection is desired. Features * RoHS compliant and lead-free * Fast response to fault currents Agency Approvals
AGENCY AGENCY FILE NUMBER E183209 R50082521
* High voltage * Low-profile
Applications * IEE1394 port protection * Powered ethernet port protection (IEEE 802.3 af) * Automotive electronic control module protection * Low voltage telecom equipment protection
Electrical Characteristics
I hold (A) 0.30 0.50 0.75 1.10 1.25 1.50 1.85 2.00 2.00 2.50 2.60 3.00 3.00 I trip (A) 0.60 1.00 1.50 2.20 2.50 3.00 3.70 4.00 4.00 5.00 5.00 5.00 5.00 V max (Vdc) 60 60 30 33 15 33 33 15 24 15 6 6 15 I max (A) 10 10 40 40 40 40 40 40 40 40 40 40 40 Pd max. (W) 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 Maximum Time To Trip Current (A) 1.50 2.50 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 Time (Sec.) 3.00 4.00 0.30 0.50 2.00 2.00 2.50 5.00 5.00 10.00 10.00 20.00 20.00 R min () 1.200 0.350 0.350 0.120 0.070 0.080 0.065 0.050 0.050 0.035 0.025 0.015 0.015 Resistance R typ () 3.000 0.870 0.670 0.270 0.160 0.150 0.110 0.090 0.090 0.060 0.050 0.033 0.033 R 1max () 4.800 1.400 1.000 0.410 0.250 0.230 0.150 0.125 0.125 0.085 0.075 0.048 0.048 X X X X X X X X X X X X X X X X X X X X X X X X X X Agency Approvals
Part Number
Marking
2920L030 2920L050 2920L075 2920L100 2920L125 2920L150 2920L185 2920L200 2920L200/24 2920L250 2920L260 2920L300 2920L300/15
LF030 LF050 LF075 LF100 LF125 LF150 LF185 LF200 LF200-24 LF250 LF260 LF300 LF300-15
I hold = Hold current: maximum current device will pass without tripping in 20C still air. I trip = Trip current: minimum current at which the device will trip in 20C 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 20C 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 20C measured one hour after tripping or reflow soldering of 260C for 20 sec. Caution: Operation beyond the specified rating may result in damage and possible arcing and flame.
2920L Series Specifications are subject to change without notice.
Electronics Designers Guide
www.littelfuse.com (c)2006 Littelfuse
POLYFUSE(R) Resettable PTCs
Surface Mount
Temperature Rerating
Ambient Operation Temperature -40C Part Number 2920L030 2920L050 2920L075 2920L100 2920L125 2920L150 2920L185 2920L200 2920L200/24 2920L250 2920L260 2920L300 2920L300/15 0.45 0.76 1.13 1.66 1.89 2.27 2.80 3.02 3.14 3.78 3.64 4.53 4.20
2920L Series
-20C 0.40 0.67 1.01 1.47 1.68 2.01 2.47 2.68 2.77 3.35 3.25 4.02 3.85
0C 0.35 0.59 0.88 1.29 1.46 1.76 2.17 2.34 2.42 2.93 2.91 3.51 3.44
23C 0.30 0.50 0.75 1.10 1.25 1.50 1.85 2.00 2.00 2.50 2.60 3.00 3.00
40C Hold Current (A) 0.25 0.42 0.62 0.91 1.04 1.25 1.54 1.66 1.73 2.08 2.26 2.52 2.69
50C 0.23 0.38 0.56 0.83 0.94 1.13 1.39 1.50 1.56 1.88 2.08 2.26 2.50
60C 0.20 0.33 0.50 0.73 0.83 1.00 1.22 1.32 1.38 1.65 1.95 1.99 2.31
70C 0.17 0.29 0.44 0.64 0.73 0.87 1.07 1.16 1.20 1.45 1.74 1.75 2.12
85C 0.14 0.23 0.34 0.50 0.56 0.74 0.85 0.90 0.98 1.13 1.48 1.34 1.83
Average Time Current Curves
1.00A 1.25A 1.50A 1.85A 2.00A/24V 2.00A 2.50A 2.60A 3.00A/15V 3.00A 0.300A 0.100A 0.500A 0.750A
Temperature Rerating Curve
100000
10000
1000
TIME IN SECONDS
100
10
1
0.100
0.010
0.001 0.02 0.100 1 10 100
CURRENT IN AMPERES
by a number or variables, two decimal places. Note: 1.00 means the number one with and these curves The average time current curves and are subject to change without notice. Specifications temperature rerating curve performance is affected provided as guidance only. Customer must 06.05.10 AKL V3.9 verify the performance in their application.
2920L Series Specifications are subject to change without notice.
2 Electronics Designers Guide
www.littelfuse.com (c)2006 Littelfuse
POLYFUSE(R) Resettable PTCs
Surface Mount
Soldering Parameters
Condition Peak Temp/ Duration Time Time above liquids (TAL) 220C Preheat 120C~ 180C Storage Condition Reflow 260C / 10 Sec 60 Sec ~ 100 Sec
Temperature (C) 260 220 Soldering Cooling
50 Sec ~ 150 Sec 0C~35C, < 70%RH =
* Recommended reflow methods: IR, vapor phase oven, hot air oven, N2 environment for lead-free * Devices are not designed to be wave soldered to the bottom side of the board. * Recommended maximum paste thickness is 0.25mm (0.010 inch) * Devices can be cleaned using standard industry methods and solvents. Note: If reflow temperatures exceed the recommended profile, devices may not meet the performance requirements.
180 120
Preheating
0
50 to 150
60 to 100 Time(s)
120
Physical Specifications
Terminal Material Lead Solderability Solder-Plated Copper (Solder Material: Matte Tin(Sn)) Meets EIA Specification RS186-9E, ANSI/ J-STD-002 Category 3.
Environmental Specifications
Operating/Storage Temperature Maximum Device Surface Temperature in Tripped State Passive Aging Humidity Aging -40C to +85C 125C +85C, 1000 hours 5% typical resistance change +85C, 85%R.H. 1000 hours 5% typical resistance change MIL-STD-202 Method 107G +85C/-40C 20 times -30% typical resistance change MIL-STD-202, Method 215 MIL-STD-883C, Method 2007.1, Condition A
Thermal Shock
Solvent Resistance
Vibration
2920L Series Specifications are subject to change without notice.
Electronics Designers Guide
www.littelfuse.com (c)2006 Littelfuse
POLYFUSE(R) Resettable PTCs
Surface Mount
Dimensions (mm)
MARKING CODE VARIES WITH AMPERAGE AND VOLTAGE RATING (SEE CHART) SHOWN ARE: - 1.5A/33V RATING (LEFT) - 2.0A/24V RATING (RIGHT) A C
Top View
150 150
D
B
200 -24
Side View
Bottom View
Pad Layout
E
4.60 mm (.181")
5.30 mm (.209")
2.0mm (.079")
A Part Number 2920L030 2920L050 2920L075 2920L100 2920L125 2920L150 2920L185 2920L200 2920L200/24 2920L250 2920L260 2920L300 2920L300/15 Inches 0.26 0.26 0.26 0.26 0.26 0.26 0.26 0.26 0.26 0.26 0.26 0.26 0.26 0.31 0.31 0.31 0.31 0.31 0.31 0.31 0.31 0.31 0.31 0.31 0.31 0.31 mm 6.73 6.73 6.73 6.73 6.73 6.73 6.73 6.73 6.73 6.73 6.73 6.73 6.73 7.98 7.98 7.98 7.98 7.98 7.98 7.98 7.98 7.98 7.98 7.98 7.98 7.98 Inches 0.19 0.19 0.19 0.19 0.19 0.19 0.19 0.19 0.19 0.19 0.19 0.19 0.19 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21 0.21
B mm 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 5.44 5.44 5.44 5.44 5.44 5.44 5.44 5.44 5.44 5.44 5.44 5.44 5.44 Inches 0.03 0.03 0.03 0.02 0.02 0.03 0.03 0.03 0.03 0.03 0.02 0.03 0.03 0.05 0.05 0.05 0.04 0.04 0.05 0.05 0.05 0.05 0.05 0.04 0.05 0.05
C mm 0.75 0.75 0.75 0.55 0.55 0.75 0.75 0.75 0.75 0.75 0.55 0.75 0.75 1.25 1.25 1.25 1 1 1.25 1.25 1.25 1.25 1.25 1 1.25 1.25 Min. 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01
D Inches mm Min. 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 Inches 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08
E mm 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 2 2 2 2 2 2 2 2 2 2 2 2 2 Min Max. Min. Max.
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max.
Part Numbering System
2920 L 200 /24 D R
PACKAGING STYLE R: Tape & Reel SERIES QUANTITY CODE: D=1500 P=2000 /XX: SPECIAL VOLTAGE RATING (NOT APPLICABLE TO ALL PARTS) I HOLD CURRENT CODE (SEE TABLE BELOW) L: LITTELFUSE SURFACE MOUNT PPTC SIZE
2920L Series Specifications are subject to change without notice.
Electronics Designers Guide
www.littelfuse.com (c)2006 Littelfuse
POLYFUSE(R) Resettable PTCs
Surface Mount
Packaging
I hold (A) 0.30 0.50 0.75 1.10 1.25 1.50 1.85 2.00 2.50 2.60 3.00 I hold Code 030 050 075 100 125 150 185 200 250 260 300 /15 /24 Voltage Option Packaging Option Tape and Reel Tape and Reel Tape and Reel Tape and Reel Tape and Reel Tape and Reel Tape and Reel Tape and Reel Tape and Reel Tape and Reel Tape and Reel Tape and Reel Tape and Reel Quantity 1500 1500 1500 2000 2000 1500 1500 1500 1500 1500 2000 1500 1500 Quantity & Packaging Codes DR DR DR PR PR DR DR DR DR DR PR DR DR
2920L Series Specifications are subject to change without notice.
Electronics Designers Guide
www.littelfuse.com (c)2006 Littelfuse

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