Introduction to the Fast Break Fuse FSC 5 * 20 Series of Walter Ceramic Tube

WALTER Brand Introduction WALTER Spot Check

Model Selection List and Current Purchase Address of Walter Electronic Ceramic Tube Quick Break Fuse FSC (5 * 20) 250V Series: Click on the image to enter

The Walter electronic ceramic tube fuse FSC (5 * 20) 250V series is a general-purpose fuse suitable for general electronic circuits.

Product code: Walter ceramic tube fuse FSC (5 * 20) 250V series slow break product code is as follows:

serial number	delay	Rated current	rated voltage	Safety regulations symbols
FSC	F	3.15A	250V	cULs/VDE/TUV/CCC...

Rated current and rated voltage range: Walter Ceramic Tube Fuse FSC (5 * 20) 250V Series Current and Voltage Range:

Rated current：250mA~15A
rated voltage：250V AC

The Walter electronic ceramic tube fuse FSC (5 * 20) 250V slow break series has the following identification:

1. Rated current+rated voltage: 250mA~15A, 250V; T_ MA/_ A250V

2. Manufacturer logo+series+safety certification logo

Note: The size and position of the identification are not specified

Appearance and shape:

1. Appearance: There should be no damage or obvious bruises

2. Shape: Small fuse with pins

Engineering drawings and structure: The engineering structure drawings of Walter Electronic Ceramic Tube Fuse ICP (3.6 * 10) 250V series are as follows:

1. Product engineering drawings:

2.product mix：

element	material quality	number
fuse wire	alloy	1
copper cap	Nickel Plated Brass	2
body	Ceramic tube	1
terminal	Tinned Copper	2

Product features: The characteristics of Walter Electronic Ceramic Tube Fuse FSC(5*20) 250V series products are as follows:

1. Pin tensile strength: 10 Newton 10 ± 1s

2. Pin thrust strength: 2 Newton 10 ± 1s

3. Solderability: Wave soldering at 260 ℃, ≤ 3s; Soldering iron: 350 ± 10 ℃, ≤ 1s

4. Welding heat resistance: Wave soldering: 260 ± 10 ℃, 10s; Soldering iron: 350 ℃, 3s

Electrical characteristics: The electrical characteristics of the Walter electronic ceramic tube fuse FSC(5*20) 250V series are as follows:

1. Fusing current characteristics:

RATED CURRENT	2.1 In	2.75 In		4 In		10 In
RATED CURRENT	Max.	Min	Max.	Min	Max.	Max	Max.
250mA~4A	30min	10ms	2s	3ms	300ms	20ms	150ms
5A~6.3A	30min	10ms	3s	3ms	300ms	20ms
6.3A~15A	30min	40ms	20s	10ms	1s	30ms

2.Product specifications：

Rated current	Cold Resistance	Maximum voltage drop(mV)	Maximum power consumption(mW)	I²T(A2 Sec@10In)
250mA	1.350Ω	2800	2500	0.031
315mA	0.785Ω	2500		0.057
400mA	0.485Ω	2000		0.106
500mA	0.370Ω	1800		0.219
630mA	0.250Ω	1500		0.485
800mA	0.185Ω	1200		0.95
1A	134.5mΩ	1000		1.46
1.25A	121.10mΩ	800	4000	0.94
1.6A	72.00mΩ	600		1.70
2A	55.20mΩ	500		3.35
2.5A	41.15mΩ	400		6.84
3.15A	28.00mΩ	350		12.3
4A	19.10mΩ	300		27.0
5A	15.45mΩ	250		45.2
6.3A	13.65mΩ	200		74
8A	10.60mΩ	200		134
10A	6.10mΩ	200		231
12A	5.15mΩ	200		377
15A	4.80mΩ	200		579

3.Breaking Capacity：

ULVDE/CCC/KC

250mA~15A

1500 @ 250V AC

4.Time current curve：

Environmental characteristics: The environmental characteristics of the Walter electronic ceramic tube fuse FSC(5*50) 250V series are as follows:

1. Operating temperature range: -55~125 ℃. (Note: If it exceeds the range of 25 ± 5 ℃, the impact of environmental temperature on the fuse should be considered when selecting the fuse specification. Please refer to the temperature curve:

）

2. Storage conditions:

It can be stored for 3 years under sealed conditions with a temperature of+10~60 ℃ and a relative humidity of 75% or less.

It can be stored for up to 30 days under non exposed conditions with a temperature of+10~60 ℃ and a relative humidity of 95%.

Installation method and conditions:

1. It is recommended to install as shown in the following figure and meet the required dimensions.

2. Suggest customers to adjust the welding parameters:

Wave soldering parameters:

Tin furnace temperature: 260 ℃ Max

Welding time: 2-5s

Manual welding parameters:

Solder iron temperature: 350 ± 5 ℃

Welding time: 5 seconds Max

Other precautions for use: Ceramic tube fuse FSC(5*50) 250V series. If heating the shrink sleeve is required, the baking temperature and time should refer to the following regulations: