20140111065445x93YFe4

 MPSR Series
Polymeric PTC
MERITEK
Feature and Applications

ROHS Compliant (Lead Free) Product

Electronic applications: Rechargeable battery packs, Lithium cell and battery packs

Low profile, Solid state

Operation Current: 1.2A to 4.2A

Maximum Operating Voltage: 15V and 30V

Temperature Range: -40ºC to 85ºC
PART NUMBERING SYSTEM
MPSR
XXX
Meritek Series
Current Rating
Rev. 7
MPSR Series
Polymeric PTC
MERITEK
Electrical Characteristics (23ºC)
Part
Number
MPSR120
MPSR175
MPSR200
MPSR350
MPSR420
Hold
Current
Trip
Current
Max.
Time to
Trip
IH, A
IT, A
at 5xIH, S
1.20
1.75
2.00
3.50
4.20
2.70
3.80
4.40
6.30
7.60
5.0
5.0
4.0
3.0
6.0
Rated
Voltage
V MAX,
Vdc
15
15
30
30
30
Maximum
Current
Typical
Power
IMAX, A
100
100
100
100
100
Resistance Tolerance
RMIN
RMAX
R1MAX
Pd, W
ohms
ohms
ohms
1.2
1.5
1.9
2.5
2.9
0.085
0.050
0.030
0.017
0.012
0.160
0.090
0.060
0.031
0.024
0.220
0.120
0.100
0.050
0.040
E223037
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IH=Hold current-maximum current at which the device will not trip at 23ºC still air.
IT=Trip current-minimum current at which the device will always trip at 23ºC still air.
VMAX=Maximum voltage device can withstand without damage at its rated current.
I MAX= Maximum fault current device can withstand without damage at rated voltage (VMAX).
Pd=Maximum power dissipated from device when in tripped state in 23ºC still air environment.
RMIN=Minimum device resistance at 23ºC.
R1MAX=Maximum device resistance at 23ºC, 1 hour after tripping.
Physical specifications:
Lead material: 0.13mm nominal thickness, quarter-hard nickel.
Insulating material: Polyester tape
Product Dimensions (Millimeters)
Part
Number
MPSR120
MPSR175
MPSR200
MPSR350
MPSR420
A
Min
19.9
20.9
21.3
28.4
30.6
MPSR Series
B
Max
22.1
23.1
23.4
31.8
32.4
Min
4.9
4.9
10.2
13.0
12.9
C
Max
5.2
5.2
11.0
13.5
13.6
Min
0.6
0.6
0.5
0.5
0.5
D
Max
1.0
1.0
1.1
1.1
1.1
Min
5.5
4.1
5.0
6.3
5.0
F
Max
7.5
5.5
7.6
8.9
7.5
Min
3.9
3.9
4.8
6.0
6.0
Max
4.1
4.1
5.4
6.6
6.7
Rev. 7
MPSR Series
Polymeric PTC
MERITEK
Thermal Derating Curve
MPSR Series
Typical Time-To-Trip at 23ºC
A
A = MPSR120
B = MPSR175
C = MPSR200
D = MPSR350
E = MPSR420
B
C
D
E
100
Time-to-trip (S)
10
1
0.1
0.01
0.001
1
10
100
Fault Current (A)
Rev. 7
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