The 1206L Series PTC provides surface mount overcurrent
protection for applications where space is at a premium
and resettable protection is desired.
Features
• RoHS compliant, lead-free
and halogen-free
1
• Fast response to fault
currents
• Compact design saves
board space
Agency Approvals
AGENCY
AGENCY FILE NUMBER
E183209
R50119118
Applications
• USB peripherals
• Disk drives
• CD-ROMs
• Plug and play protection
for motherboards and
peripherals
• Mobile phones - battery
and port protection
• Disk drives
• PDAs / digital cameras
• Game console port
protection
Electrical Characteristics
P
d
max.
(W)
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.8
0.8
0.8
0.8
Part Number
Marking
I
hold
(A)
0.125
0.16
0.20
0.25
0.35
0.35
0.50
0.50
0.75
I
trip
(A)
0.29
0.37
0.42
0.50
0.75
0.75
1.00
1.00
1.50
1.50
2.20
3.00
3.50
3.50
V
max
(Vdc)
30
30
24
16
6
16
6
15
13.2
8
8
6
6
6
I
max
(A)
100
100
100
100
100
100
100
100
100
100
100
100
100
100
Maximum Time
To Trip
Current
(A)
1.00
1.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
8.00
Resistance
R
min
(Ω)
1.500
1.200
0.650
0.550
0.300
0.300
0.150
0.150
0.090
0.090
0.040
0.040
0.020
0.018
Agency
Approvals
Time
(Sec.)
0.20
0.30
0.10
0.08
0.10
0.10
0.10
0.10
0.20
0.20
0.10
0.30
0.50
1.50
R
1max
(Ω)
6.00
4.50
2.60
2.30
1.20
1.20
0.70
0.75
0.35
0.29
0.18
0.12
0.09
0.08
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
X
X
1206L012
1206L016
1206L020
1206L025
1206L035
2
A
B
C
D
E
J
F
M
2
2
1206L035/16
1206L050
2
1206L050/15
1206L075/13.2
1206L075TH
1206L110TH
1206L150TH
1206L175
1206L200
2,3
2,3
2,3
G
H
K
V
L
0.75
1.10
1.50
1.75
2.00
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 (V
max
)
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.
1
Effective September 15, 2009 onward, all 1206L PTC products will be manufactured Halogen Free (HF). Existing Non-Halogen Free 1206L PTC products will continue to be sold until
supplies are depleted. Effective January 1, 2010, all 1206L PTC product will be manufactured and sold as Halogen Free by default, and the “HF” part number suffix code will be discontinued
-- Refer to Part Ordering Number System and Packaging Options sections for additional information.
2
Some older references to these devices may include “–C“ in the Part Number. The “–C“ should be omitted when placing new orders for the device.
3
Part numbers ending in “TH” refer to new lower profile devices. For these items the “TH”
suffix must be included in the ordering instructions.
Please refer also to the Dimensions and Part Ordering Number System sections of this document for additional information. Orders for the original thicker product (No TH in part number)
may be accepted in some instances through October 31, 2009. Please contact Littelfuse for additional information or arrangements.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/1206L.html for current information.
POLYFUSE
®
Resettable PTCs
Surface Mount > 1206L Series
Part Ordering Number System
1206 L xxx
/xx TH
Y R
HF
HALOGEN FREE PRODUCT INDICATOR
Required for some items. See Packaging section.
PACKAGING STYLE
R:
Tape
& Reel
SERIES
QUANTITY CODE: W=3000 Y=4000 P=2000
LOW PROFILE DEVICE INDICATOR
(Required, for L075, L110 and L150 device orders only.
Refer to “C” in Dimensions section.)
SPECIAL VOLTAGE RATING ITEM
(Applicable only to 1206L035/16 and 1206L050/15. Refer to
Electrical Characteristics
Table
for additional information)
I
HOLD
HOLD CURRENT CODE
(Refer to Electrical Characteristics
Table)
DEVICE SIZE CODE
(0.12 x 0.06 inch)
Packaging Options
Part Number
1206L012
1206L016
1206L020
1206L025
1206L035
1206L035/16
1206L050
1206L050/15
1206L075/13.2
1206L075TH
1206L110TH
1206L150TH
1206L175
1206L200
Ordering Number
1206L012WRHF
1206L012WR
1206L016WRHF
1206L016WR
1206L020YRHF
1206L020YR
1206L025YRHF
1206L025YR
1206L035YRHF
1206L035YR
1206L035/16YRHF
1206L035/16YR
1206L050YRHF
1206L050YR
1206L050/15YRHF
1206L050/15YR
1206L075/13.2WR
1206L075THYR
1206L110THYR
1206L150THWR
1206L175PR
1206L200PR
Halogen Free*
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
I
hold
(A)
0.125
0.16
0.20
0.25
0.35
0.35
0.50
0.50
0.75
0.75
1.10
1.50
1.75
2.00
I
hold
Code
012
016
020
025
035
035
050
050
075
075
110
150
175
200
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
Tape and Reel
Quantity
3000
3000
4000
4000
4000
4000
4000
4000
3000
4000
4000
3000
2000
2000
Quantity/Pack Code
WR
WR
YR
YR
YR
YR
YR
YR
WR
YR
YR
WR
PR
PR
*
Effective September 15, 2009 onward, all 1206L PTC products will be manufactured Halogen Free (HF). Existing Non-Halogen Free 1206L PTC products will continue to be sold until
supplies are depleted. Effective January 1, 2010, all 1206L PTC product will be manufactured and sold as Halogen Free by default, and “HF” part number suffix code will be discontinued.
1. Introduction
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