Model Selection List and Current Purchase Address of Walter Electronic Ceramic Tube Quick Break Fuse FSC (5 * 20) 250V Series: "="" target="_blank" rel="noopener">hnstshop.com/product-list/F04-p1-l10.html" target="_blank" rel="noopener">Click on the image to enter
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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 | |||
| 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:
| temperature | 120℃ | 130℃ | 140℃ | 150℃ | 160℃ | 170℃ | 180℃ |
| time | 80s Max | 75s Max | 70s Max | 65s Max | 60s Max | 55s Max | 50s Max |
