BOURNS MF

IA
NT
Features
CO
M
PL
■
*R
oH
S
■
■
014
■
4T
■
■
■
Axial leaded
Fully compatible with current
industry standards
Weldable nickel terminals
Very low internal resistance
Operating currents to 9.0 Amps
RoHS compliant*, lead free
Agency recognition:
T V Rheinland
Applications
■
■
■
■
Any application that requires protection
at low resistances
Rechargeable battery packs
Cellular phones
Laptop computers
MF-LR Series - PTC Resettable Fuses
Electrical Characteristics
Ihold
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*
V max.
Volts
I max.
Amps
15
15
15
15
15
20
20
10
10
20
20
100
100
100
100
100
100
100
100
100
100
100
1 Hour (R1)
Itrip
Initial
Resistance
Ohms
At 23 °C
Min.
Max.
Amperes
At 23 °C
Hold
Trip
1.90
1.90
2.60
2.60
3.80
4.50
5.50
6.00
7.30
7.30
9.00
3.90
3.90
5.80
5.80
8.30
8.90
10.50
11.70
14.10
14.10
16.70
0.039
0.039
0.020
0.020
0.013
0.011
0.009
0.007
0.006
0.006
0.006
0.072
0.072
0.042
0.042
0.026
0.020
0.019
0.014
0.012
0.012
0.010
Post-Trip
Resistance
Ohms
At 23 °C
Max.
0.102
0.102
0.063
0.063
0.037
0.028
0.022
0.016
0.015
0.015
0.014
Max. Time
To Trip
Amperes Seconds
At 23 °C At 23 °C
9.5
9.5
13.0
13.0
19.0
22.5
27.5
30.0
30.0
30.0
45.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
Tripped
Power
Dissipation
Watts
At 23 °C
Typ.
1.2
1.2
1.3
2.5
2.5
1.4
1.4
2.8
3.0
3.0
3.0
* TÜV recognition 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, Condition A ......................No change
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)
Ambient Operating Temperature
Model
-40 °C
-20 °C
MF-LR190
2.8
2.5
MF-LR190S
2.8
2.5
MF-LR260
3.8
3.4
MF-LR260S
3.8
3.4
MF-LR380
5.5
4.9
MF-LR450
6.5
5.8
MF-LR550
8.0
7.1
MF-LR600
8.7
7.8
MF-LR730
10.5
9.5
MF-LR730/20
10.5
9.5
MF-LR900/20
12.7
11.4
*Itrip is approximately two times Ihold.
0 °C
2.3
2.3
3.1
3.1
4.4
5.3
6.2
7.1
8.6
8.6
10.0
23 °C
1.9
1.9
2.6
2.6
3.8
4.5
5.5
6.0
7.3
7.3
9.0
40 °C
1.6
1.6
2.2
2.2
3.3
3.9
4.7
5.2
7.4
7.4
7.5
50 °C
1.5
1.5
2.0
2.0
3.0
3.6
4.3
4.7
6.8
6.8
6.8
60 °C
1.4
1.4
1.9
1.9
2.8
3.3
4.0
4.4
6.2
6.2
6.2
70 °C
1.2
1.2
1.7
1.7
2.5
2.9
3.6
3.9
5.5
5.5
5.5
85 °C
1.0
1.0
1.4
1.4
2.1
2.5
3.0
3.3
4.5
4.5
4.5
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
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
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)
27.1
(1.067)
27.1
(1.067)
45.4
(1.787)
B
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)
Packaging: Bulk - 500 pcs. per bag.
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)
C
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)
14.5
(0.571)
14.5
(0.571)
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)
D
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)
F
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)
Tape and Reel - Consult factory.
Standard Style
S Style
"S"
Style
DIMENSIONS =
SLIT
A
Std.
S
Std.
S
Std.
Std.
Std.
Std.
Std.
Std.
Std.
MM
(INCHES)
Typical Part Marking
4.0
0.5
X
NOMINAL
(.020) (.157)
Represents total content. Layout may vary.
A
MANUFACTURER'S
TRADEMARK
F
B
D
Pkg.
Style
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)
F
B
D
D
C
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
D
C
LR190
0144T
DATE CODE
(FIRST DIGIT =
LAST DIGIT OF YEAR;
NEXT THREE DIGITS =
DAY OF YEAR)
PART
IDENTIFICATION
LOT NO.
(T = TAIWAN
S = CHINA)
MF-LR Series - PTC Resettable Fuses
Typical Time to Trip at 23 °C
How To Order
MF - LR 730/20 S - 0
Time to Trip (Seconds)
100
Multifuse® Product
Designator
Series
LR = Axial Leaded “Strap” Component
Hold Current, Ihold/Vmax*
190-900 (1.90 Amps - 9.00 Amps)
10
MF-LR900/20
MF-LR730 & MF-LR730/20
MF-LR600
MF-LR550
MF-LR450
MF-LR380
1
MF-LR260
MF-LR190
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.
**Slotted Lead Option applies only to Models MFLR190 & MF-LR260.
.01
1
10
Fault Current
100
***Packaged per EIA 486-B
(Amps)
MF-LR SERIES, REV. L, 10/05
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.