Bourns PTC fuse Current I(H) 0.55 A 60 V (L x W x H) 5.44 x 4.93 x 1.09 mm MF-SMDF050-2 1 pc(s) MF-SMDF050-2 数据表

产品代码

MF-SMDF050-2

Features

■

Very low profi le

■

Very fast tripping time

■

High voltage

■

RoHS compliant* and halogen free**

■

Symmetrical

■

2018 footprint

■

Agency recognition:

Applications

■

Power Over Ethernet (IEEE 802.3 af) port

protection

■

Automotive electronic control module

protection

■

Telecom equipment low voltage

protection

MF-SMDF Series - PTC Resettable Fuses

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

**To be considered halogen free, each homogenous material can have a maximum concentration of 900 ppm of either bromine or chlorine.

Specifi cations are subject to change without notice.

Customers should verify actual device performance in their specifi c applications.

Environmental Characteristics

Operating Temperature ......................................... -40 °C to +85 °C
Maximum Device Surface Temperature
in Tripped State ................................................. 125 °C
Passive Aging ....................................................... +85 °C, 1000 hours ............................................... ±5 % typical resistance change
Humidity Aging ..................................................... +85 °C, 85 % R.H. 1000 hours ............................. ±5 % typical resistance change
Thermal Shock ..................................................... +85 °C to -40 °C, 20 times ................................... ±10 % typical resistance change
Solvent Resistance ............................................... MIL-STD-202, Method 215 ................................... No change
Vibration ............................................................... MIL-STD-883C, Method 2007.1, .......................... No change
.............................................................................. Condition A

Electrical Characteristics

Model

V max.

Volts

I max.

Amps

Ihold

Itrip

Resistance

Max. Time

To Trip

Tripped

Power

Dissipation

Amperes

at 23 °C

Ohms

at 23 °C

Amperes

at 23 °C

Seconds

at 23 °C

Watts

at 23 °C

Hold

Trip

RMin.

R1Max.

Typ.

MF-SMDF050

0.55

1.20

0.200

1.0

2.5

3.0

0.9

MF-SMDF150***

1.5

3.00

0.05

0.17

8.0

0.8

1.1

MF-SMDF200****

2.0

4.00

0.03

0.100

8.0

2.40

1.1

*RoHS COMPLIANT

Test Procedures And Requirements For Model MF-SMDF 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
Solderability .......................................................... ANSI/J-STD-002 ................................................... 95 % min. coverage

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

Thermal Derating Chart - Ihold/Itrip (Amps)

Model

Ambient Operating Temperature

-40 °C

-20 °C

0 °C

23 °C

40 °C

50 °C

60 °C

70 °C

85 °C

MF-SMDF050

0.87 / 1.90

0.77 / 1.68

0.67 / 1.46

0.55 / 1.20

0.46 / 1.00

0.41 / 0.89

0.36 / 0.79

0.31 / 0.68

0.23 / 0.50

MF-SMDF150

2.38 / 4.76

2.10 / 4.20

1.82 / 3.64

1.50 / 3.00

1.27 / 2.54

1.13 / 2.26

0.99 / 1.98

0.85 / 1.70

0.64 / 1.28

MF-SMDF200

2.95 / 5.90

2.65 / 5.30

2.35 / 4.70

2.00 / 4.00

1.74 / 3.48

1.59 / 3.18

1.44 / 2.88

1.29 / 2.58

1.06 / 2.12

*** UL approved, TÜV pending.
****Agency approval pending.