MF-LSMF300-2 Bourns Inc., MF-LSMF300-2 Datasheet - Page 3

• Manufacturer Part Number: MF-LSMF300-2
• Description: PTC - (2920)SURFACE MNT
• Manufacturer: Bourns Inc.
• Series: MF-LSMFr

Specifications of MF-LSMF300-2

• Voltage - Max: 6V
• Current - Max: 40A
• Current - Hold (ih) (max): 3A
• Current - Trip (it): 5A
• R Min/max: 0.015 ~ 0.048 Ohm
• Time To Trip: 20s
• Package / Case: 2920 (7351 Metric)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Notes:
•
•
•
MF-LSMF SERIES, REV. A, 12/10
Specifi cations are subject to change without notice.
Customers should verify actual device performance in their specifi c applications.
MF-LSMF185/33X
MF-LSMF260X
MF-LSMF300X
MF-LSMF300/24X
Thermal Derating Chart - I hold (Amps)
Solder Refl ow Recommendations
MF-LSMF models cannot be wave soldered. Please contact Bourns for hand soldering
recommendations.
If refl ow temperatures exceed the recommended profi le, devices may not meet the performance
requirements.
Compatible with Pb and Pb-free solder refl ow profi les.
3312 - 2 mm SMD Trimming Potentiometer
MF-LSMF Series - PTC Resettable Fuses
Model
300
250
200
150
100
50
0
Preheating
-40 ˚C
2.80
3.75
4.53
4.00
160–220
-20 ˚C
2.47
3.35
4.02
3.55
Soldering
Time (seconds)
10–20
2.17
3.00
3.51
3.20
0 ˚C
Cooling
120
Ambient Operating Temperature
23 ˚C
1.85
2.60
3.00
3.00
40 ˚C
1.54
2.35
2.52
2.50
50 ˚C
1.39
2.15
2.26
2.25
Multifuse
Designator
Series
Hold Current, Ihold
Higher Voltage Option
Packaging
Represents total content. Layout may vary.
Typical Part Marking
How to Order
E
LSMF = 7555 mm (2920 mils)
Surface Mount Component
185-300 (1.85 Amps - 3.00 Amps)
Packaged per EIA 481-1
-2 = Tape and Reel
/24 = 24 Volt Rated
/33 = 33 Volt Rated
X = Multifuse
60 ˚C
1.22
2.05
1.99
2.15
®
Product
MF-LSMF Series
X
MF - LSMF 185/33X - 2
PART IDENTIFICATION EXAMPLES:
MF-LSMF185/33X = 9
MF-LSMF260X = E
MF-LSMF300X = F
MF-LSMF300/24X = J
BI-WEEKLY DATE CODE:
WEEKS 47-48 = X
®
freeXpansion
70 ˚C
1.07
1.80
1.75
1.85
™
Design
85 ˚C
0.85
1.30
1.34
1.50