MF-USMF175-2 Bourns Inc., MF-USMF175-2 Datasheet - Page 2

• Manufacturer Part Number: MF-USMF175-2
• Description: PTC - 3.2X2.5mm(1210)SFCMT
• Manufacturer: Bourns Inc.
• Series: MF-USMFr

Specifications of MF-USMF175-2

• Voltage - Max: 6V
• Current - Max: 40A
• Current - Hold (ih) (max): 1.75A
• Current - Trip (it): 3.5A
• R Min/max: 0.020 ~ 0.090 Ohm
• Time To Trip: 1s
• Package / Case: 1210 (3225 Metric)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Packaging: 3000 pcs. per reel.
MF-USMF005
MF-USMF010
MF-USMF020
MF-USMF035
MF-USMF050
MF-USMF075
MF-USMF110
MF-USMF150
MF-USMF175X
Solder Refl ow Recommendations
Product Dimensions
Top and Bottom View
MF-USMF Series - PTC Resettable Fuses
Model
D
300
250
200
150
100
50
A
0
Preheating
B
Side View
C
160–220
(0.118)
(0.118)
(0.118)
(0.118)
(0.118)
(0.118)
(0.118)
(0.118)
(0.118)
Min.
3.00
3.00
3.00
3.00
3.00
3.00
3.00
3.00
3.00
A
Soldering
Time (seconds)
(0.135)
(0.135)
(0.135)
(0.135)
(0.135)
(0.135)
(0.135)
(0.135)
(0.135)
10–20
Max.
3.43
3.43
3.43
3.43
3.43
3.43
3.43
3.43
3.43
(.039 ± .002)
Recommended Pad Layout
1.0 ± 0.05
(.079 ± .004)
2.0 ± 0.1
Cooling
120
(0.093)
(0.093)
(0.093)
(0.093)
(0.093)
(0.093)
(0.093)
(0.093)
(0.093)
Min.
2.35
2.35
2.35
2.35
2.35
2.35
2.35
2.35
2.35
B
(.098 ± .004)
Notes:
•
•
•
•
Customers should verify actual device performance in their specifi c applications.
2.5 ± 0.1
(0.110)
(0.110)
(0.110)
(0.110)
(0.110)
(0.110)
(0.110)
(0.110)
(0.110)
(.039 ± .002)
Max.
1.0 ± 0.05
2.80
2.80
2.80
2.80
2.80
2.80
2.80
2.80
2.80
MF-USMF models cannot be wave soldered.
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.
Excess solder may cause a short circuit, especially during hand
soldering. Please refer to the Multifuse
Recommendation guidelines.
(0.031)
(0.031)
(0.031)
(0.022)
(0.022)
(0.022)
(0.022)
(0.016)
(0.016)
Min.
0.80
0.80
0.80
0.55
0.55
0.55
0.55
0.40
0.40
Terminal material:
Termination pad solderability:
Recommended Storage:
Electroless Ni under immersion Au
Standard Au fi nish:
Meets ANSI/J-STD-002 Category 2.
40 °C max./70 % RH max.
Specifi cations are subject to change without notice.
C
(0.043)
(0.043)
(0.043)
(0.033)
(0.033)
(0.033)
(0.033)
(0.033)
(0.033)
®
Max.
0.85
0.85
0.85
0.85
0.85
0.85
1.1
1.1
1.1
Polymer PTC Soldering
DIMENSIONS:
(0.012)
(0.012)
(0.012)
(0.012)
(0.012)
(0.012)
(0.012)
(0.012)
(0.012)
Min.
0.30
0.30
0.30
0.30
0.30
0.30
0.30
0.30
0.30
D
(INCHES)
MM