Features
Industry’s lowest internal resistance
Switches at optimum temperature
Axial leaded, with fl exible design options
available
Fully compatible with current industry
standards
Weldable nickel terminals
RoHS compliant*
MF-SVS Series - PTC Resettable Fuses
*RoHS COMPLIANT
Environmental Characteristics
Operating Temperature ......................................... -40 °C to +85 °C
Storage Conditions............................................... +40 °C max. 70 % R.H. max.
Maximum Device Surface Temperature
in Tripped State ................................................ 125 °C
Passive Aging ....................................................... +60 °C, 1000 hours ............................................... ±10 % typical resistance change
Humidity Aging ..................................................... +60 °C, 85 % R.H. 1000 hours ............................. ±10 % typical resistance change
Thermal Shock ..................................................... MIL-STD-202F, Method 107G, ............................. ±5 % typical resistance change
+85 °C to -40 °C, 10 times
Vibration ............................................................... MIL-STD-883C,..................................................... No change
Condition A
Test Procedures And Requirements For Model MF-SVS 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 specifi ed 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
Electrical Characteristics
Model V max.
Volts
I max.
Amps
Ihold Itrip Initial
Resistance
1 Hour (R1)
Post-Trip
Resistance
Max. Time
to Trip
Tripped
Power
Dissipation
Amperes
at 23 °C
Ohms
at 23 °C
Ohms
at 23 °C
Amperes
at 23 °C
Seconds
at 23 °C
Watts
at 23 °C
Hold Trip Min. Max. Typ. Max. Typ.
MF-SVS170 10 100 1.7 4.1 0.018 0.032 0.023 0.064 8.5 5.0 2.1
MF-SVS175 10 100 1.75 4.2 0.017 0.031 0.022 0.063 8.5 5.0 2.1
MF-SVS210 10 100 2.1 5.0 0.010 0.020 0.016 0.040 10.5 5.0 2.4
MF-SVS230 10 100 2.3 5.2 0.010 0.018 0.014 0.036 12.5 5.0 2.6
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
Specifi cations are subject to change without notice.
Customers should verify actual device performance in their specifi c applications
SVS210
2018S
Thermal Derating Chart - Ihold (Amps)
Model Ambient Operating Temperature
-40 ºC -20 ºC 0 ºC 23 ºC 40 ºC 50 ºC 60 ºC 70 ºC 85 ºC
MF-SVS170 3.3 2.8 2.3 1.7 1.3 1.0 0.8 0.5 0.1
MF-SVS175 3.4 2.9 2.3 1.75 1.3 1.1 0.8 0.5 0.1
MF-SVS210 3.8 3.3 2.7 2.1 1.6 1.3 1.1 0.8 0.4
MF-SVS230 4.2 3.6 3.0 2.3 1.8 1.4 1.1 0.8 0.4
*Itrip is approximately two times Ihold.
Product Dimensions
Model ABCDF
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max.
MF-SVS170 16.0
(0.630)
18.0
(0.709)
4.9
(0.193)
5.5
(0.216)
0.6
(0.024)
0.9
(0.035)
4.1
(0.161)
5.8
(0.228)
3.9
(0.154)
4.1
(0.161)
MF-SVS170N 22.0
(0.866)
24.0
(0.945)
3.6
(0.142)
3.9
(0.153)
0.6
(0.024)
0.9
(0.035)
4.1
(0.161)
5.8
(0.228)
2.4
(0.094)
2.6
(0.102)
MF-SVS175 16.0
(0.630)
18.0
(0.709)
4.9
(0.193)
5.5
(0.216)
0.6
(0.024)
0.9
(0.035)
4.1
(0.161)
5.8
(0.228)
3.9
(0.154)
4.1
(0.161)
MF-SVS175N 22.0
(0.866)
24.0
(0.945)
3.6
(0.142)
3.9
(0.153)
0.6
(0.024)
0.9
(0.035)
4.1
(0.161)
5.8
(0.228)
2.4
(0.094)
2.6
(0.102)
MF-SVS175NL 26.0
(1.024)
28.0
(1.102)
3.6
(0.142)
3.9
(0.153)
0.6
(0.024)
0.9
(0.035)
6.1
(0.240)
7.8
(0.307)
2.4
(0.094)
2.6
(0.102)
MF-SVS210 20.9
(0.823)
23.1
(0.909)
4.9
(0.193)
5.5
(0.216)
0.6
(0.024)
0.9
(0.035)
4.1
(0.161)
5.8
(0.228)
3.9
(0.154)
4.1
(0.161)
MF-SVS210N 30.0
(1.181)
32.0
(1.260)
3.6
(0.142)
3.9
(0.153)
0.6
(0.024)
0.9
(0.035)
4.1
(0.161)
5.8
(0.228)
2.4
(0.094)
2.6
(0.102)
MF-SVS230 20.9
(0.823)
23.1
(0.909)
4.9
(0.193)
5.5
(0.216)
0.6
(0.024)
0.9
(0.035)
4.1
(0.161)
5.8
(0.228)
3.9
(0.154)
4.1
(0.161)
Packaging: Bulk - 500 pcs. per bag. Tape and Reel - Consult factory.
Leads: 1/4 Hardened Nickel 0.125 mm (.005 ”) nom.
NOTE: All “S” style models available with 1 or 2 slots. The dimensions and shape of the leads can be modifi ed to suit the
battery pack design. All models are available without insulation wrapping.
DIMENSIONS: MM
(INCHES)
MF-SVS Series - PTC Resettable Fuses
Specifi cations are subject to change without notice.
Customers should verify actual device performance in their specifi c applications
Applications
Any battery pack application that requires protection with the lowest possible resistance:
– Rechargeable battery packs; designed for NiMH and Li-Ion chemical characteristics
– Cellular / cordless phone rechargeable battery packs
– Laptop computer battery packs
F
B
D D
C
A
SLIT
Standard Style
F
B
D D
C
A
"S" Style NOMINAL
0.5 4.0
(.020) (.157)
X
1.0
(.040) RADIUS
SLIT
F
B
D D
C
A
"SS" Style NOMINAL
0.5 4.0
(.020) (.157)
X
MF-SVS Series - PTC Resettable Fuses
Typical Time to Trip at 23 ˚C How to Order
MF - SVS 210 __ __ __ __ - __
Multifuse®
Product
Designator
Series
SVS = Axial Leaded
“Strap” Component
Hold Current, Ihold
170-230 (1.70 - 2.30 Amps)
Narrow Device Option
N = Narrow (3.6mm)
Lead Option
S = Slotted Lead Option (one side)
SS = Slotted Lead Option (two sides)
Longer Lead Option
L = Longer Leads
Insulating Option
U = Non-Insulated Option
Packaging Option
-0 = Bulk Packaging
-2 = Tape and Reel* (Consult factory)
*Packaged per EIA 486-B
Specifi cations are subject to change without notice.
Customers should verify actual device performance in their specifi c applications
0.001
0.01
0.1
1
10
100
1 10 100
Fault Current (Amps)
Time to Trip (Seconds)
MF-SVS175
MF-SVS170
MF-SVS230
MF-SVS210
Typical Part Marking
Represents total content. Layout may vary.
MANUFACTURER'S
TRADEMARK PART
IDENTIFICATION
DATE CODE
(FIRST DIGIT =
LAST DIGIT OF YEAR;
NEXT THREE DIGITS = DAY OF YEAR)
LOT NO.
(S = CHINA)
SVS210
2018S
MF-SVS, REV. Y 06/09