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-LR190S
MF-LR260
MF-LR260S
MF-LR380
MF-LR450
MF-LR550
MF-LR600
MF-LR730
MF-LR730/20
MF-LR900/20
-40 ºC
2.8
2.8
3.8
3.8
5.5
6.5
8.0
8.7
10.5
10.5
12.7
-20 ºC
2.5
2.5
3.4
3.4
4.9
5.8
7.1
7.8
9.5
9.5
11.4
0 ºC
2.3
2.3
3.1
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
1.9
1.6
1.5
2.6
2.2
2.0
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
1.4
1.9
1.9
2.8
3.3
4.0
4.4
6.2
6.2
6.2
70 ºC
1.2
1.2
1.7
1.7
2.5
2.9
3.6
3.9
5.5
5.5
5.5
85 ºC
1.0
1.0
1.4
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.
Customers should verify actual device performance in their specific applications.
MF-LR Series - PTC Resettable Fuses
Product Dimensions
Model
MF-LR190
MF-LR190S
MF-LR260
MF-LR260S
MF-LR380
MF-LR450
MF-LR550
MF-LR600
MF-LR730
MF-LR730/20
MF-LR900/20
Packaging:
A
Min.
19.9
(0.783)
19.9
(0.783)
20.9
(0.823)
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)
22.1
(0.870)
23.1
(0.909)
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)
Min.
4.9
(0.193)
4.9
(0.193)
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)
B
Max.
5.2
(0.205)
5.2
(0.205)
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)
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)
1.0
(0.039)
1.0
(0.039)
1.3
(0.051)
Min.
5.5
(0.217)
5.5
(0.217)
4.1
(0.161)
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)
D
Max.
7.5
(0.295)
7.5
(0.295)
5.5
(0.217)
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)
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)
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)
DIMENSIONS:
Pkg.
Style
Std.
S
Std.
S
Std.
Std.
Std.
Std.
Std.
Std.
Std.
MM
(INCHES)
Bulk - 500 pcs. per bag.
Tape and Reel - Consult factory.
Standard Style
A
"S" Style
SLIT
4.0
0.5
X
NOMINAL
(.020) (.157)
A
Typical Part Marking
Represents total content. Layout may vary.
F
B
F
B
MANUFACTURER'S
TRADEMARK
LR190
0144T
C
PART
IDENTIFICATION
LOT NO.
(T = TAIWAN
S = CHINA)
D
D
C
D
D
DATE CODE
(FIRST DIGIT =
LAST DIGIT OF YEAR;
NEXT THREE DIGITS =
DAY OF YEAR)
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
MF-LR Series - PTC Resettable Fuses
Typical Time to Trip at 23 ˚C
100
Multifuse
®
Product
Designator
How to Order
MF - LR 730/20 S - 0
Time to Trip
(Seconds)
10
Series
LR = Axial Leaded “Strap”
Component
1
MF-LR900/20
MF-LR730 & MF-LR730/20
MF-LR600
MF-LR550
MF-LR450
MF-LR380
MF-LR260
MF-LR190
Hold Current, Ihold/Vmax*
190-900 (1.90 Amps - 9.00 Amps)
Lead Option
S = Slotted Lead Option
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.
.01
1
10
100
Fault Current
(Amps)
**Slotted Lead Option applies only to Models MF-
LR190 & MF-LR260.
***Packaged per EIA 486-B
MF-LR SERIES, REV. Q, 11/11
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
MF-S, MF-LS, MF-LR and MF-VS Series Tape and Reel Specifications
Taped Component Dimensions
48.0
±
0.3
(1.90
±
.012)
12.0
±
0.1
(.472
±
.004)
4.0
±
0.1
(.157
±
.004)
1.0 + 0.1/ -0
(.039 + .004/-0)
0.2
MAX.
(.008)
DIA.
5.56
±
0.10
(.219
±
.004)
2.0
(.079)
RADIUS
8.0
±
0.2
(.315
±
.008)
PASTEBOARD
HOLD
4.0
±
0.2
(.157
±
.008)
PASTEBOARD
HOLD
Reel Dimensions
13.0
(.512)
DIA.
330
(13.0)
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
