Datasheet > FA8225

FA8225

更新时间： 2024-02-12 01:40:57

品牌	Logo	应用领域
TTELEC		电阻器膜电阻器金属膜电阻器
页数	文件大小	规格书
2页	117K
描述
Fusible Metal Film Resistors

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FA8225 数据手册

Fusible Metal Film

Resistors

Welwyn Components

FA8025 series

• Predictable fusing characteristics

Flameproof protection

•

Electrical Data

FA8225

0.25

FA8325

0.5

FA8425

1.5

Power rating at 70˚ C

Resistance range

watts

ohms

volts

0R1 - 10k

250

0R1 - 27k

350

0R15 - 22k

500

Limiting element voltage

TCR

ppm/˚ C

250

Resistance tolerance

Standard values

E24 preferred

120

Thermal impedance

Ambient temperature range

˚ C/watt

˚ C

150

-55 to 155

Physical Data

Dimensions (mm) & Weight (g)

PCB

Min.

mounting

centres

bend

Type

L max

6.2

D max

2.53

f min

d nom

0.6

radius Wt. nom

d dia

FA8225

FA8325

FA8425

10.2

12.7

20.3

0.6

1.2

0.3

0.6

1.1

9.0

3.4

19.6

23.8

0.8

14.5

5.1

0.8

Construction

Marking

The metal film is deposited on a high purity ceramic rod. End

caps are force fitted and termination wires welded to the

caps. The resistive film is adjusted to the required value by a

helical cut; finally the cement protection is applied to the

resistor body and marked with indelible ink.

Resistors are colour coded with five bands. Four of the bands

are used to indicate value and tolerance, with IEC 62 colours

being used. On FA8325 and FA8425 types a fifth yellow band

denotes constant voltage fusibility.

Solvent Resistance

The body protection and marking are resistant to all normal

Terminations

Material

Solder-coated copper wire.

industrial cleaning solvents suitable for printed circuits.

Strength

The terminations meet the requirements of

IEC 68.2.21.

Flammability

The resistors will not burn or emit incandescent particles

under any condition of applied temperature or power

overload.

Solderability The terminations meet the requirements of

IEC 115-1, Clause 4.17.3.2.

General Note

Welwyn Components reserves the right to make changes in product specification without notice or liability.

All information is subject to Welwyn’s own data and is considered accurate at time of going to print.

A subsidiary of

TT electronics plc

Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com

Issue CB · 013.072

153

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