MF-LR190 Bourns Inc., MF-LR190 Datasheet

MF-LR190

Manufacturer Part Number

MF-LR190

Description

PTC - AXIAL LEADED

Manufacturer

Bourns Inc.

Datasheets

1.MF-LR190.pdf (4 pages)

2.MF-LR190.pdf (4 pages)

3.MF-LR190.pdf (4 pages)

4.MF-LR190.pdf (4 pages)

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*I trip is approximately two times I hold.

Operating/Storage Temperature ........................-40 °C to +85 °C

Maximum Device Surface Temperature

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

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

Electrical Characteristics

TÜV recognition pending.

MF-LR190

MF-LR190S

MF-LR260

MF-LR260S

MF-LR380

MF-LR450

MF-LR550

MF-LR600

MF-LR730

MF-LR730/20*

MF-LR900/20*

Thermal Derating Chart - I hold (Amps)

in Tripped State ................................................125 °C

MF-LR190

MF-LR190S

MF-LR260

MF-LR260S

MF-LR380

MF-LR450

MF-LR550

MF-LR600

MF-LR730

MF-LR730/20

MF-LR900/20

Model

Environmental Characteristics

Test Procedures And Requirements For Model MF-LR Series

Model

V max.

Volts

-40 °C

10.5

12.7

2.8

3.8

5.5

6.5

8.0

8.7

I max.

Amps

100

-20 °C

11.4

2.5

3.4

4.9

5.8

7.1

7.8

9.5

I hold

Hold

1.90

2.60

3.80

4.50

5.50

6.00

7.30

9.00

MF-LR Series -

Test Conditions

Amperes

At 23 °C

Features

Axial leaded

Fully compatible with current

industry standards

Weldable nickel terminals

Very low internal resistance

Operating currents to 9.0 Amps

RoHS compliant*

0 °C

10.0

2.3

3.1

4.4

5.3

6.2

7.1

8.6

10.50

11.70

14.10

16.70

I trip

3.90

5.80

8.30

8.90

Trip

Ambient Operating Temperature

23 °C

1.9

2.6

3.8

4.5

5.5

6.0

7.3

9.0

0.039

0.020

0.013

0.011

0.009

0.007

0.006

Min.

Resistance

PTC Resettable Fuses

At 23 °C

Initial

Ohms

40 °C

Customers should verify actual device performance in their specific applications.

1.6

2.2

3.3

3.9

4.7

5.2

7.4

7.5

0.072

0.042

0.026

0.020

0.019

0.014

0.012

0.010

Max.

Accept/Reject Criteria

50 °C

1.5

2.0

3.0

3.6

4.3

4.7

6.8

1 Hour (R 1 )

Resistance

At 23 °C

Post-Trip

Ohms

0.102

0.083

0.037

0.028

0.022

0.019

0.015

0.014

Max.

Applications

Agency recognition:

Any application that requires protection

at low resistances

Rechargeable battery packs

Cellular phones

Laptop computers

RoHS Directive 2002/95/EC Jan 27 2003 including Annex

Specifications are subject to change without notice.

60 °C

Amperes Seconds

At 23 °C

1.4

1.9

2.8

3.3

4.0

4.4

6.2

13.0

19.0

22.5

27.5

30.0

45.0

9.5

Max. Time

To Trip

At 23 °C

70 °C

1.2

1.7

2.5

2.9

3.6

3.9

5.5

5.0

Dissipation

At 23 °C

Tripped

Watts

Power

85 °C

T V Rheinland

Typ.

1.2

1.3

2.5

1.4

2.8

3.0

1.0

1.4

2.1

2.5

3.0

3.3

4.5

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