Self Control Fuse WSFD Series

Description

WSFD Series is a three terminals surface mountable battery protector that can protect against both overcurrent and over-charging. It comprises a fuse element to ensure stable operation under normal electrical current and to cut off the current when overcurrent occurs. It also comprises a resistive heating element that could be used in combination with a voltage detecting means, such as IC and FET. When overvoltage is detected, it will generate heat to blow the fuse to achieve overvoltage protection.

Features

  • Halogen Free
  • Protection for both overcurrent and overcharging
  • Surface Mount
  • Fast response

Electrical Characteristics

Part

Number

Irated

(A)

Cell In

Series

Vmax

(Vdc)

Ibreak

(A)

Vop

(V)

Resistance

Agency Approvals

Rfuse

(mΩ)

UL

TUV

WSFD3004

30

1

62

80

4.0-6.6

1.0-2.5

√

√

WSFD3006

30

2

62

80

5.6-9.0

1.0-2.5

√

√

WSFD3012

30

3

62

80

8.4-13.2

1.0-2.5

√

√

WSFD3018

30

4-5

62

80

10.5-23.5

1.0-2.5

√

√

WSFD3030

30

6-7

62

80

20.2-31.5

1.0-2.5

√

√

WSFD3032

30

8

62

80

26.4-36.0

1.0-2.5

√

√

WSFD3040

30

9-10

80

80

28.0-46.9

1.0-2.5

√

√

WSFD3040-C12

30

12

62

80

33.6-54.0

1.0-2.5

√

√

WSFD3050

30

13

62

80

36.2-58.5

1.0-2.5

√

√

WSFD3050-C14

30

14

62

80

28.0-62.0

1.0-2.5

√

√

WSFD3050-C16

30

16

80

80

36.0-62.0

1.0-2.5

√

√

WSFD3050-C17

30

15-17

80

80

42.0-74.8

1.0-2.5

√

√

WSFD4512

45

3

80

120

9.8-13.5

0.5-2.0

√

√

WSFD4512-C3

45

3

80

120

9.8-13.5

0.5-2.0

√

√

WSFD4514

45

4

80

120

13.0-18.4

0.5-2.0

√

√

WSFD4520

45

5

80

120

16.7-23.5

0.5-2.0

√

√

WSFD4524

45

6

80

120

19.8-27.0

0.5-2.0

√

√

WSFD4530

45

6-7

80

120

22.3-31.5

0.5-2.0

√

√

WSFD4532

45

8

80

120

26.7-37.6

0.5-2.0

√

√

WSFD4540

45

9-10

80

120

33.0-47.0

0.5-2.0

√

√

WSFD4550

45

13-14

80

120

43.7-62.0

0.7-2.0

√

√

WSFD4550-C17

45

17

80

120

59.5-76.0

0.5-2.0

√

√