POLY-FUSE® Resettable PTCs
Surface Mount > 1210L Series
1210L Series
RoHS
Description
The 1210L Series PTC provides surface mount overcurrent
protection for applications where space is at a premium
and resettable protection is desired.
Features
Agency Approvals
Agency
Agency File Number
Applications
E183209
• Mobile phones - battery
and port protection
• PDAs / digital cameras
• Game console port
protection
• USB peripherals
• Disk drives
• CD-ROMs
• PC motherboards - plug
and play protection
R50119118
Additional Information
Datasheet
• Low resistance
• Low-profile
• Compatible with high
temperature solders
• RoHS compliant, lead-free
and halogen-free
• Fast response to fault
currents
• Compact design saves
board space
Samples
Resources
Electrical Characteristics
Marking
I hold
(A)
1210L005
A
0.05
0.15
30
10
0.60
1210L010
B
0.10
0.30
30
10
0.60
1210L020
C
0.20
0.40
30
10
1210L035
E
0.35
0.70
6
1210L035/30
E3
0.35
0.70
1210L050
F
0.50
1210L050/30
F3
1210L075
G
1210L075/24
G2
1210L110/12
H1
1210L110/16
Part Number
I trip
(A)
V max
(Vdc)
I max
(A)
P d typ.
(W)
Maximum Time
To Trip
Agency
Approvals
Resistance
Time
(Sec.)
R min
(Ω)
R 1max
(Ω)
0.25
1.50
3.600
50.00
X
X
0.50
1.50
1.600
15.00
X
X
0.60
8.00
0.02
0.800
5.000
X
X
100
0.60
8.00
0.20
0.320
1.300
X
X
30
40
0.60
8.00
0.20
0.320
1.300
X
X
1.00
13.2
100
0.60
8.00
0.05
0.250
0.900
X
X
0.50
1.00
30
40
0.60
8.00
0.15
0.220
0.900
X
X
0.75
1.50
6
100
0.60
8.00
0.10
0.130
0.400
X
X
0.75
1.50
24
100
0.60
8.00
0.10
0.130
0.400
X
X
1.10
2.20
12
100
0.6
8.00
0.10
0.060
0.210
X
X
HF
1.10
2.20
16
100
0.6
8.00
0.10
0.060
0.210
X
X
1210L110TH
H
1.10
2.20
8
100
0.60
8.00
0.10
0.060
0.210
X
X
1210L150/16
KF
1.50
3.00
16
100
0.80
8.00
0.30
0.040
0.110
X
X
1210L150TH
K
1.50
3.00
6
100
0.80
8.00
0.30
0.040
0.110
X
X
1210L175
V
1.75
3.50
6
100
0.80
8.00
0.60
0.020
0.080
X
X
1210L200
L
2.00
4.00
6
100
0.80
8.00
1.00
0.015
0.070
X
X
Current
(A)
I hold = Hold current: maximum current device will pass without tripping in 20°C still air.
P d = Power dissipated from device when in the tripped state at 20°C still air.
I trip = Trip current: minimum current at which the device will trip in 20°C still air.
R min = Minimum resistance of device in initial (un-soldered) state.
V max = Maximum voltage device can withstand without damage at rated current (I max)
R typ = Typical resistance of device in initial (un-soldered) state.
I max = Maximum fault current device can withstand without damage at rated voltage (Vmax)
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.
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 06/17/19
POLY-FUSE® Resettable PTCs
Surface Mount > 1210L Series
Temperature Rerating
Ambient Operation Temperature
-40°C
-20°C
0°C
20°C
Part Number
40°C
50°C
60°C
70°C
85°C
Hold Current (A)
1210L005
0.08
0.07
0.06
0.05
0.04
0.04
0.03
0.03
0.02
1210L010
0.16
0.14
0.12
0.10
0.08
0.07
0.06
0.05
0.05
1210L020
0.29
0.26
0.22
0.20
0.16
0.14
0.13
0.11
0.08
1210L035
0.47
0.45
0.40
0.35
0.33
0.28
0.24
0.21
0.18
1210L035/30
0.47
0.45
0.40
0.35
0.33
0.28
0.24
0.21
0.18
1210L050
0.76
0.67
0.58
0.50
0.43
0.40
0.36
0.32
0.28
1210L050/30
0.76
0.67
0.58
0.50
0.43
0.40
0.36
0.32
0.28
1210L075
1.00
0.97
0.86
0.75
0.64
0.59
0.54
0.48
0.40
1210L075/24
1.00
0.97
0.86
0.75
0.64
0.59
0.54
0.48
0.40
1210L110/12
1.60
1.42
1.26
1.10
0.94
0.86
0.80
0.70
0.58
1210L110/16
1.60
1.42
1.26
1.10
0.94
0.86
0.80
0.70
0.58
1210L110TH
1.60
1.42
1.26
1.10
0.94
0.86
0.80
0.70
0.58
1210L150/16
2.30
2.02
1.76
1.50
1.24
1.11
1.00
0.86
0.65
1210L150TH
2.30
2.02
1.76
1.50
1.24
1.11
1.00
0.85
0.65
1210L175
2.45
2.22
2.01
1.75
1.45
1.26
1.10
0.98
0.80
1210L200
2.60
2.44
2.35
2.00
1.78
1.67
1.50
1.45
1.10
Temperature Rerating Curve
10.00
Percentage of Rated Current
150%
1210L
100.00
Time in Seconds
170%
130%
110%
10000
90%
70%
50%
30%
10%
-40
1.00
1812L
100000
1000
Time in Seconds
0.05A
0.10A
0.20A
0.35A
0.35A/30
0.50A
0.50A/30
0.75A
0.75A/24
1.10A
1.50A
1.50A/16
1.75A
2.00A
Average Time Current Curves
0.10A
0.14A
0.20A
0.50A
0.75A/33V
0.75A/24V
0.75A
1.10A/16V
1.10A/33V
1.10A
1.25A
1.25A/6V
1.50A/12V
1.50A
1.50A/24V
1.60A/12V
1.60A
1.60A/8V
2.00A
2.60A
Note:
The temperature rerating data is only for reference, please contact Littelfuse technical support for detail temperature rerating information.
-30 -20
100
-10
10
0
10
20 30
40
Temperature (°C)
50
60
70
80 85
Note:
Typical Temperature rerating curve, refer to table for derating data
1
0.10
0.1
0.01
0.10
1.00
10.00
0.01
0.1
1
10
Current in Amperes
Current in Amperes
0.05A
0.10A
0.20A
0.35A
0.50A
0.75A
1.10A
1.50A
1.75A
2.00A
The average time current curves and Temperature Rerating curve performance is affected
by a number or variables, and these curves provided as guidance only. Customer must
verify the performance in their application.
10000
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 06/17/19
1210L OLD
100
POLY-FUSE® Resettable PTCs
Surface Mount > 1210L Series
Soldering Parameters
Profile Feature
Pb-Free Assembly
Average Ramp-Up Rate (TS(max) to TP)
3°C/second max
Temperature Min (Ts(min))
150°C
Pre Heat:
Temperature Max (Ts(max))
200°C
Time (Min to Max) (ts)
60 – 180 secs
Time Maintained
Above:
Temperature (TL)
217°C
Temperature (tL)
60 – 150 seconds
°C
Time within 5°C of actual peak Temperature
(tp)
20 – 40 seconds
Ramp-down Rate
6°C/second max
Time 25°C to peak Temperature (TP)
8 minutes Max.
Physical Specifications
Terminal Material
Solder-Plated Copper (Solder Material: Matte Tin
(Sn))
Lead Solderability
Meets EIA Specification RS186-9E, ANSI/JSTD-002 Category 3.
Temperature
260
Critical Zone
tL to tP
Ramp-up
TL
TS(max)
Peak / Classification Temperature (TP)
+0/-5
tP
TP
tL
Ramp-do
Ramp-down
Preheat
TS(min)
25
tS
time to peak temperature
Time
-- All temperature refer to topside of the package, measured on the package body surface
-- If reflow temperature exceeds the recommended profile, devices may not meet the
performance requirements
-- Recommended reflow methods: IR, vapor phase oven, hot air oven, N2 environment
for lead
-- Recommended maximum paste thickness is 0.25mm(0.010inch)
-- Devices can be cleaned usingstandard industry methods and solvents
-- Devices can be reworked using the standard industry practices
Environmental Specifications
Operating/Storage
Temperature
Maximum Device Surface
Temperature in Tripped State
-40°C to +85°C
125°C
Passive Aging
+85°C, 1000 hours
-/+5% typical resistance change
Humidity Aging
+85°C, 85, R.H.,1000 hours
-/+5% typical resistance change
Thermal Shock
MIL–STD–202, Method 107
+85°C/-40°C, 20 times
-30% typical resistance change
Solvent Resistance
MIL–STD–202, Method 215
No change
Vibration
MIL–STD–883, Method 2007, Condition
A No change
Moisture Level Sensitivity
Level 1, J–STD–020
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 06/17/19
POLY-FUSE® Resettable PTCs
Surface Mount > 1210L Series
Dimensions
MARKING CODE VARIES
WITH AMPERAGE RATING
(See Electrical Characteristics Table)
SHOWN IS 1.5AMP RATING
C
A
Top
View
K
Bottom
View
K
Side
View
B
2.00 mm
(.079)
Pad
Layout
D
2.50 mm
(.098)
E
1.00 mm
(.040)
A
Part Number
B
Inches
mm
Inches
C
mm
Inches
D
mm
Inches
E
mm
Inches
mm
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Min
1210L005
0.12
0.14
3.0
3.43
0.09
0.11
2.35
2.80
0.03
0.05
0.75
1.25
0.01
0.03
0.25
0.75
0.004
0.02
0.10
Max
0.50
1210L010
0.12
0.14
3.0
3.43
0.09
0.11
2.35
2.80
0.03
0.05
0.75
1.25
0.01
0.03
0.25
0.75
0.004
0.02
0.10
0.50
1210L020
0.12
0.14
3.0
3.43
0.09
0.11
2.35
2.80
0.02
0.04
0.60
1.00
0.01
0.03
0.25
0.75
0.004
0.02
0.10
0.50
1210L035
0.12
0.14
3.0
3.43
0.09
0.11
2.35
2.80
0.02
0.03
0.50
0.85
0.01
0.03
0.25
0.75
0.004
0.02
0.10
0.50
1210L035/30
0.12
0.14
3.00
3.43
0.09
0.11
2.35
2.80
0.03
0.05
0.75
1.25
0.01
0.03
0.25
0.75
0.004
0.02
0.10
0.50
1210L050
0.12
0.14
3.0
3.43
0.09
0.11
2.35
2.80
0.02
0.03
0.50
0.85
0.01
0.03
0.25
0.75
0.004
0.02
0.10
0.50
1210L050/30
0.12
0.14
3.00
3.43
0.09
0.11
2.35
2.80
0.03
0.05
0.75
1.25
0.01
0.03
0.25
0.75
0.004
0.02
0.10
0.50
1210L075
0.12
0.14
3.0
3.43
0.09
0.11
2.35
2.80
0.02
0.03
0.50
0.85
0.01
0.03
0.25
0.75
0.004
0.02
0.10
0.50
1210L075/24
0.12
0.14
3.0
3.43
0.09
0.11
2.35
2.80
0.05
0.07
1.20
1.80
0.01
0.03
0.25
0.75
0.004
0.02
0.10
0.50
1210L110/12
0.12
0.14
3.0
3.43
0.09
0.11
2.35
2.80
0.03
0.05
0.75
1.25
0.01
0.03
0.25
0.75
0.004
0.02
0.10
0.50
1210L110/16
0.12
0.14
3.0
3.43
0.09
0.11
2.35
2.80
0.03
0.05
0.75
1.25
0.01
0.03
0.25
0.75
0.004
0.02
0.10
0.50
1210L110TH
0.12
0.14
3.0
3.43
0.09
0.11
2.35
2.80
0.04
0.05
0.30
0.71
0.01
0.03
0.25
0.75
0.004
0.02
0.10
0.50
1210L150/16
0.12
0.14
3.00
3.43
0.09
0.11
2.35
2.80
0.03
0.05
0.75
1.25
0.01
0.03
0.25
0.75
0.004
0.02
0.10
0.50
1210L150TH
0.12
0.14
3.0
3.43
0.09
0.11
2.35
2.80
0.03
0.07
0.75
1.07
0.01
0.03
0.25
0.75
0.004
0.02
0.10
0.50
1210L175
0.12
0.14
3.0
3.43
0.09
0.11
2.35
2.80
0.02
0.04
0.60
1.00
0.01
0.03
0.25
0.75
0.004
0.02
0.10
0.50
1210L200
0.12
0.14
3.0
3.43
0.09
0.11
2.35
2.80
0.03
0.06
0.80
1.60
0.01
0.03
0.25
0.75
0.004
0.02
0.10
0.50
Part Ordering Number System
1210 L 380 /12 TH Y R - A
-A: Automotive grade
Blank: Standard version
SERIES
PACKAGING STYLE
R: Tape & Reel
QUANTITY CODE: K=10,000 Y=4,000 W=3,000 P=2,000
THIN PROFILE
(Not applicable to all parts)
/XX: SPECIAL VOLTAGE RATING
(Not applicable to all parts. Refer
to Electrical Characteristics Table)
I HOLD HOLD CURRENT CODE
(Refer to Electrical Characteristics Table)
L: LITTELFUSE SURFACE MOUNT PPTC
SIZE
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 06/17/19
POLY-FUSE® Resettable PTCs
Surface Mount > 1210L Series
Packaging Options
Part Number
Ordering
Number
Halogen Free
I hold (A)
I hold Code
1210L005
1210L005WR
Yes
0.05
005
Tape and Reel
3000
WR
1210L010
1210L010WR
Yes
0.10
010
Tape and Reel
3000
WR
Packaging Option
Quantity
Quantity & Packaging
Codes
1210L020
1210L020WR
Yes
0.20
020
Tape and Reel
3000
WR
1210L035
1210L035YR
Yes
0.35
035
Tape and Reel
4000
YR
1210L035/30
1210L035/30WR
Yes
0.35
035
Tape and Reel
3,000
WR
1210L050
1210L050YR
Yes
0.50
050
Tape and Reel
4000
YR
1210L050/30
1210L050/30WR
Yes
0.50
050
Tape and Reel
3,000
WR
1210L075
1210L075YR
Yes
0.75
075
Tape and Reel
4000
YR
1210L075/24
1210L075/24PR
Yes
0.75
075
Tape and Reel
2000
PR
1210L110/12
1210L110/12WR
Yes
1.10
110
Tape and Reel
3,000
WR
1210L110/16
1210L110/16WR
Yes
1.10
110
Tape and Reel
3,000
WR
1210L110TH
1210L110THYR
Yes
1.10
110
Tape and Reel
4000
YR
1210L150/16
1210L150/16WR
Yes
1.50
150
Tape and Reel
3,000
WR
1210L150TH
1210L150THWR
Yes
1.50
150
Tape and Reel
3000
WR
1210L175
1210L175WR
Yes
1.75
175
Tape and Reel
3000
WR
1210L200
1210L200PR
Yes
2.00
200
Tape and Reel
2000
PR
Tape and Reel Specifications
TAPE SPECIFICATIONS: EIA-481-1 (mm)
1210L035
1210L050
1210L075
1210L110TH
1210L005
1210L010
1210L020
1210L035/30
1210L050/30
1210L110/12
1210L110/16
1210L150/16
1210L150TH
1210L175
1210L200
1210L075/24
W
8.00+/- 0.30
8.00+/- 0.30
8.00+/- 0.30
C
Ø178+/- 1.0
F
3.50+/- 0.05
3.50+/- 0.05
3.50+/- 0.05
D
Ø60.2+/- 0.5
REEL DIMENSIONS:
EIA-481-1 (mm)
E1
1.75+/- 0.10
1.75+/- 0.10
1.75+/- 0.10
H
11.0+/- 0.05
D0
1.55+/- 0.05
1.55+/- 0.05
1.55+/- 0.05
W
9.0+/- 1.5
D1
1.00 (min)
1.00 (min)
1.00 (min)
P0
4.00+/- 0.10
4.00+/- 0.10
4.00+/- 0.10
P1
4.00+/- 0.10
4.00+/- 0.10
4.00+/- 0.10
P2
2.00+/- 0.05
2.00+/- 0.05
2.00+/- 0.05
2.80+/- 0.10
A0
2.82+/- 0.10
2.82+/- 0.10
B0
3.46+/- 0.10
3.50+/- 0.10
3.50+/- 0.10
T
0.25+/- 0.10
0.20+/- 0.10
0.25+/- 0.10
K0
1.00+/- 0.10
1.30+/- 0.10
1.60+/- 0.10
Leader min.
390
390
390
Trailer min.
160
160
160
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 06/17/19
POLY-FUSE® Resettable PTCs
Surface Mount > 1210L Series
H
D0
P0
P1
E1
P2
D
F
C
W
T
D1
D1
K0
W
B0
WARNING
• Users shall independently assess the suitability of these devices for each of their applications
• Operation of these devices beyond the stated maximum ratings could result in damage to the devices and lead to electrical arcing and/or fire
• These devices are intended to protect against the effects of temporary over-current or over-temperature conditions and are not intended to perform as protective devices where such
conditions are expected to be repetitive or prolonged in duration
• Exposure to silicon-based oils, solvents, electrolytes, acids, and similar materials can adversely affect the performance of these PPTC devices
• These devices undergo thermal expansion under fault conditions, and thus shall be provided with adequate space and be protected against mechanical stresses
• Circuits with inductance may generate a voltage (L di/dt) above the rated voltage of the PPTC device.
Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and
test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications.
Read complete Disclaimer Notice at http://www.littelfuse.com/disclaimer-electronics.
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 06/17/19
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