MF-VS Series - PTC Resettable Fuses
*RoHS COMPLIANT
Environmental Characteristics
Operating/Storage Temperature ........................... -40 °C to +85 °C
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-VS 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 .................................................... E174545
http://www.ul.com/ Follow link to Certifi cations, then UL File No., enter E174545
CSA File Number .................................................. CA110338
http://directories.csa-international.org/ Under “Certifi cation Record” and “File Number”
enter 110338-0-000
TÜV Certifi cate Number ....................................... R 02057213
http://www.tuvdotcom.com/ Follow link to “other certifi cates”, enter File No. 2057213
Electrical Characteristics
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-VS170 3.2 2.7 2.2 1.7 1.3 1.1 0.8 0.6 0.1
MF-VS210 4.1 3.5 2.9 2.1 1.6 1.3 1.0 0.7 0.1
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-VS170 16 100 1.7 3.4 0.030 0.052 0.040 0.105 8.5 3.0 1.4
MF-VS210 16 100 2.1 4.7 0.018 0.030 0.022 0.060 10.0 5.0 1.5
*Itrip is approximately two times Ihold.
VS210
2018S
Features
■ Axial leaded
■ Fully compatible with current
industry standards
■ Weldable nickel terminals
■ Very low internal resistance
■ Low switching temperature
■ Agency recognition:
■ RoHS compliant*
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifi cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specifi c applications.
Product Dimensions
Model A B C D F
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max.
MF-VS170 16.0
(0.630)
18.0
(0.709)
4.9
(0.193)
5.5
(0.217)
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-VS210 20.9
(0.823)
23.1
(0.909)
4.9
(0.193)
5.5
(0.217)
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-VS210L 24.0
(0.945)
26.0
(1.023)
4.9
(0.193)
5.5
(0.217)
0.6
(0.024)
0.9
(0.035)
5.0
(0.197)
7.1
(0.280)
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: 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)
Typical Part Marking
Represents total content. Layout may vary.
MF-VS Series - PTC Resettable Fuses
MANUFACTURER'S
TRADEMARK PART
IDENTIFICATION
LOT NO.
(S = CHINA)
VS210
2018S
DATE CODE
(FIRST DIGIT =
LAST DIGIT OF YEAR;
NEXT THREE DIGITS =
DAY OF YEAR)
F
B
D D
C
A
Typical Time to Trip at 23 ˚C
100
10
1
0.1
0.01
0.001 1 10 100
Fault Current (Amps)
Time to trip (Seconds)
MF-VS170
MF-VS210
How to Order
MF - VS 210 __ __
Multifuse®
Product
Designator
Series
VS = Axial Leaded
“Strap” Component
Hold Current, Ihold
170-210 (1.7 Amps - 2.1 Amps)
Longer Lead Option
L = Longer Leads
Insulating Option
U = Non-Insulated Option
MF-VS SERIES, REV. Q, 05/15
Applications
Any application that requires protection at low resistances:
■ Rechargeable battery packs; designed for NiMH and Li-Ion chemical characteristics
■ Cellular phones
■ Laptop computers
Specifi cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specifi c applications.
