RADIAL LEADED PTC
FT MODEL

E175689

Pending

FEATURES

  • Fast trip time, Lower trip-to-hold ratio.
  • Radial-leaded product ideal for up to 36V
  • Operation current: 0.5A~2.5A
  • Maximum voltage: 36V
  • Temperature range: -40 to 85
  • Cured, flame retardant epoxy polymer insulating material meets UL 94V-0 requirement
  • Bulk packaging, tape and reel available on most models

APPLICATIONS

  • IEEE 1394 FireWire

  • Computer & Consumer electronics

PART NUMBERING SYSTEM

  ERF XX XXX XX X X X
   |   |  |   | | | |
   |   |  |   | | | +--- Z:RoHS Compliant
   |   |  |   | | +--- Special number:
   |   |  |   | |      0:Standard product
   |   |  |   | +--- Packing type:
   |   |  |   |      0:bulk
   |   |  |   |      2:tape & reel
   |   |  |   +--- Voltage rating: 36:36V
   |   |  +--- Current rating: 120:1.20A
   |   +--- Model:
   |        FT:Radial leaded devices
   +--- Product Name: Resettable Fuse

MARKING SYSTEM

ELECTRICAL CHARACTERISTICS (23oC)

Part
Number

Hold
Current

Trip
Current

Max. Time
to trip

Maximum
Current

Rated
Voltage

Typical
Power

Resistance Tolerance

RMIN

R1MAX

IH, A

IT, A

at 5xIH

IMAX, A

VMAX, Vdc

Pd, W

FT050-36

0.50

1.00

5.0

40

36

0.67

0.140

0.448

FT075-36

0.75

1.50

4.0

40

36

0.71

0.115

0.368

FT090-36

0.90

1.80

3.5

40

36

0.74

0.090

0.288

FT120-36

1.20

2.30

3.5

40

36

0.78

0.074

0.180

FT135-36

1.35

2.50

4.5

40

36

0.84

0.059

0.143

FT160-36

1.60

2.75

4.5

40

36

0.86

0.041

0.131

FT190-36

1.90

3.00

3.5

40

36

0.90

0.045

0.092

FT220-36

2.20

3.50

6.5

40

36

0.95

0.025

0.080

FT250-36

2.50

4.00

8.0

40

36

0.99

0.020

0.064
IH=Hold current-maximum current at which the device will not trip at 23 still air.
IT=Trip current-minimum current at which the device will always trip at 23 still air.
VMAX=Maximum voltage device can withstand without damage at rated current.
IMAX= Maximum fault current device can withstand without damage at rated voltage (V max).
Pd=Typical power dissipated from device when in the tripped state in 23c.gif (75 ????) still air environment.
RMIN=Minimum device resistance at 23.
R1MAX=Maximum device resistance at 23 1 hour after tripping.

Typical time-to-trip-at 23oC

Thermal Derating Curve

FT Product Dimensions (UNIT:mm)

Part
Number

A

B

C

D

E

F

Maximum

Maximum

Typical

Minimum

Maximum

Typical

FT050-36

7.4

12.2

5.1

7.6

3.0

1.1

FT075-36

7.4

12.2

5.1

7.6

3.0

1.1

FT090-36

7.4

12.2

5.1

7.6

3.0

1.1

FT120-36

7.4

12.2

5.1

7.6

3.0

1.1

FT135-36

7.4

14.2

5.1

7.6

3.0

1.1

FT160-36

7.4

14.0

5.1

7.6

3.0

1.1

FT190-36

9.0

13.5

5.1

7.6

3.0

1.1

FT220-36

10.0

17.5

5.1

7.6

3.0

1.1

FT250-36

10.0

19.5

5.1

7.6

3.0

1.1

Note: Specifications subject to change without prior notice.