*
*RRo
oHHS
VS C
AV ER COOM
AI SIOM PL
LA N PL IA
BL S IA NT
NT
E
Features
■
Axial leaded
■
Fully compatible with current industry
■
■
Agency recognition:
014
4T
■
■
■
standards
Weldable nickel terminals
Very low internal resistance
Operating currents to 9.0 amps
RoHS compliant*
3006 - Trimpot® Trimming Potentiometer
MF-LR Series - PTC Resettable Fuses
Electrical Characteristics
Initial
Resistance
Ohms
at 23 °C
Min.
Max.
0.039
0.072
0.020
0.042
0.013
0.026
0.011
0.020
0.009
0.019
0.007
0.014
0.006
0.012
0.006
0.012
0.006
0.010
1 Hour (R1)
Post-Trip
Resistance
Ihold
Model
V max.
Volts
I max.
Amps
Itrip
Max. Time
to Trip
Amperes
at 23 °C
9.5
13.0
19.0
22.5
27.5
30.0
30.0
30.0
45.0
Seconds
at 23 °C
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
Tripped Power
Dissipation
MF-LR190
MF-LR260
MF-LR380
MF-LR450
MF-LR550
MF-LR600
MF-LR730
MF-LR730/20**
MF-LR900/20**
15
15
15
16
10
10
10
20
20
100
100
100
100
100
100
100
100
100
Amperes
at 23 °C
Hold
Trip
1.90
3.90
2.60
5.80
3.80
8.30
4.50
8.90
5.50
10.50
6.00
11.70
7.30
14.10
7.30
14.10
9.00
16.70
Ohms
at 23 °C
Max.
0.102
0.083
0.037
0.028
0.022
0.019
0.015
0.015
0.014
Watts
at 23 °C
Typ.
1.2
1.3
2.5
1.4
1.4
2.8
3.0
3.0
3.0
** TÜV recognition and UL approval pending.
Environmental Characteristics
Operating/Storage Temperature ........................... -40 °C to +85 °C
Maximum Device Surface Temperature
in Tripped State ................................................ 125 °C
Passive Aging ....................................................... +70 °C, 1000 hours ............................................... ±10 % typical resistance change
Humidity Aging...................................................... +85 °C, 85% R.H. 7 days ...................................... ±10 % typical resistance change
Vibration ............................................................... MIL-STD-883C,..................................................... No change
Condition A
Test Procedures And Requirements For Model MF-LR Series
Test
Test Conditions
Accept/Reject Criteria
Visual/Mech. ......................................................... Verify dimensions and materials ........................... Per MF physical description
Resistance ............................................................ In still air @ 23 °C ................................................. Rmin
≤
R
≤
R1max
Time to Trip ........................................................... At specified current, Vmax, 23 °C ......................... T
≤
max. time to trip (seconds)
Hold Current ......................................................... 30 min. at Ihold ..................................................... No trip
Trip Cycle Life ....................................................... Vmax, Imax, 100 cycles ........................................ No arcing or burning
Trip Endurance ..................................................... Vmax, 48 hours..................................................... No arcing or burning
UL File Number .................................................... E 174545S
CSA File Number .................................................. CA 110338
TÜV File Number .................................................. R2057213
Thermal Derating Chart - Ihold (Amps)
Model
MF-LR190
MF-LR260
MF-LR380
MF-LR450
MF-LR550
MF-LR600
MF-LR730
MF-LR730/20
MF-LR900/20
-40 ºC
2.8
3.8
5.5
6.5
8.0
8.7
10.5
10.5
12.7
-20 ºC
2.5
3.4
4.9
5.8
7.1
7.8
9.5
9.5
11.4
0 ºC
2.3
3.1
4.4
5.3
6.2
7.1
8.6
8.6
10.0
Ambient Operating Temperature
23 ºC
40 ºC
50 ºC
1.9
1.6
1.5
2.6
2.2
2.0
3.8
3.3
3.0
4.5
3.9
3.6
5.5
4.7
4.3
6.0
5.2
4.7
7.3
7.4
6.8
7.3
7.4
6.8
9.0
7.5
6.8
60 ºC
1.4
1.9
2.8
3.3
4.0
4.4
6.2
6.2
6.2
70 ºC
1.2
1.7
2.5
2.9
3.6
3.9
5.5
5.5
5.5
85 ºC
1.0
1.4
2.1
2.5
3.0
3.3
4.5
4.5
4.5
Itrip is approximately two times Ihold.
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
Applications
Any application that requires protection at low
resistances:
■
Rechargeable battery pack protection
■
Cellular phones
■
Laptop computers
3312 2 mm
PTC
Trimming Potentiometer
MF-LR
-
Series -
SMD
Resettable Fuses
Product Dimensions
Model
MF-LR190
MF-LR260
MF-LR380
MF-LR450
MF-LR550
MF-LR600
MF-LR730
MF-LR730/20
MF-LR900/20
A
Min.
19.9
(0.783)
20.9
(0.823)
24.0
(0.945)
24.0
(0.945)
35.0
(1.378)
24.0
(0.945)
30.0
(1.18)
27.1
(1.067)
45.4
(1.787)
Max.
22.1
(0.870)
23.1
(0.909)
26.0
(1.024)
26.0
(1.024)
37.0
(1.457)
26.0
(1.024)
29.1
(1.146)
29.1
(1.146)
47.6
(1.874)
A
B
Min.
4.9
(0.193)
4.9
(0.193)
6.9
(0.272)
9.9
(0.390)
6.9
(0.272)
13.9
(0.547)
13.9
(0.547)
13.9
(0.547)
7.9
(0.311)
Max.
5.2
(0.205)
5.2
(0.205)
7.5
(0.295)
10.5
(0.414)
7.5
(0.295)
15.9
(0.626)
15.0
(0.590)
14.5
(0.571)
8.5
(0.335)
Min.
0.6
(0.024)
0.6
(0.024)
0.6
(0.024)
0.6
(0.024)
0.6
(0.024)
0.6
(0.024)
0.6
(0.024)
0.6
(0.024)
0.6
(0.024)
C
Max.
1.0
(0.039)
1.0
(0.039)
1.0
(0.039)
1.0
(0.039)
1.0
(0.039)
1.0
(0.039)
1.0
(0.039)
1.0
(0.039)
1.3
(0.051)
MM
(INCHES)
D
Min.
5.5
(0.217)
4.1
(0.161)
4.1
(0.161)
5.3
(0.209)
5.3
(0.209)
4.1
(0.161)
4.1
(0.161)
4.1
(0.161)
4.6
(0.181)
Max.
7.5
(0.295)
5.5
(0.217)
5.5
(0.217)
6.7
(0.264)
6.7
(0.264)
5.5
(0.217)
5.5
(0.217)
5.5
(0.217)
9.2
(0.362)
Min.
3.9
(0.154)
3.9
(0.154)
4.9
(0.193)
5.9
(0.232)
4.9
(0.193)
5.9
(0.232)
5.9
(0.232)
5.9
(0.232)
5.9
(0.232)
F
Max.
4.1
(0.161)
4.1
(0.161)
5.1
(0.201)
6.1
(0.240)
5.1
(0.201)
6.1
(0.240)
6.1
(0.240)
6.1
(0.240)
6.1
(0.240)
Packaging: Bulk - 500 pcs. per bag. Tape and Reel - Consult factory.
DIMENSIONS:
Typical Part Marking
Represents total content. Layout may vary.
B
F
MANUFACTURER'S
TRADEMARK
D
D
C
PART
IDENTIFICATION
LOT NO.
(T = TAIWAN
S = CHINA)
LR190
0144T
DATE CODE
(FIRST DIGIT =
LAST DIGIT OF YEAR;
NEXT THREE DIGITS =
DAY OF YEAR)
Typical Time to Trip at 23 ˚C
100
How to Order
Time to Trip
(Seconds)
MF - LR 730/20 - 0
10
1
MF-LR900/20
MF-LR730 & MF-LR730/20
MF-LR600
MF-LR550
MF-LR450
MF-LR380
MF-LR260
MF-LR190
Multifuse
®
Product
Designator
Series
LR = Axial Leaded “Strap”
Component
Hold Current, Ihold/Vmax*
190-900 (1.90 Amps - 9.00 Amps)
Packaging Options
-__ =
Bulk Packaging Designator
for Models MF-LR190 through
MF-LR730
-0 =
Bulk Packaging Designator
for Models MF-LR730/20 and
MF-LR900/20
-2 =
Tape and Reel**
*Vmax entry applies only to Models
MF-LR730/20 & MF-LR900/20.
**Packaged per EIA 486-B
.01
1
10
100
Fault Current
MF-LR SERIES, REV. R, 02/14
(Amps)
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
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