Technical Data 4322

Effective May 2017

Supersedes March 2008

Product features

1025FA

Fast-acting surface mount fuse

•

Fast-acting surface-mount fuse

•

Satisfies the EIA/IS-722 Standard

•

Solder immersion compatible

Agency information

Soldering method

• UL Recognition Guide & File numbers: JDYX2 &

E19180 (250mA - 15A)

• CSA Component Acceptance:

File # 053787 C000, Class # 1422 3

•

Wave immersion: 260°C, 10 Sec. max.

•

Infrared reflow: 260°C, 30 Sec. max.

Environmental data

•

Life test: MIL-STD-202, Method 108A, Test

Condition D

•

Load humidity: MIL-STD-202, Method 103B

•

Moisture resistance: MIL-STD-202, Method 106E

•

Terminal strength: MIL-STD-202, Method 211A

•

Thermal shock: MIL-STD-202, Method 107D, air-

to-air

•

Case resistance: EIA/IS-722

•

Resistance to dissolution of metallization: ANSI

J-STD-002, Test D

•

Mechanical shock: MIL-STD-202, Method 213B

with exceptions per EIA/IS-722 Standard

•

High frequency vibration: MIL-STD-202, Method

204D, Test condition D

•

Resistance to solvents: MIL-STD-202, Method

215A

Ordering

•

Specify packaging and product code

(i.e., TR2/1025FA250-R)

Electrical Characteristics

% of Amp Rating

Opening Time

100%

4 Hours Minimum

200% (250mA-5A)

5 Seconds Maximum

250% (250mA-5A fuse)

1 Second Maximum

200% (7-15A fuse)

20 Seconds Maximum

250% (7-15A fuse)

4 Seconds Maximum

Note: 30vde constant current source required for 200%

overload tests on 250mA-1A.

Current

Voltage

Interrupting

Rating (amps)*

250Vac 125Vdc

60Vdc

DC Cold

Resistance** (Ω)

Typical

Typical

Product Code

Rating

Rating

Melting

Voltage

(amps)

AC

DC

Typical

Drop‡

1025FA250-R

250mA

250V

125V

50

50

-

4.7500

0.1212

2019mV

1025FA500-R

500mA

250V

125V

50

50

-

1.1500

0.0415

1500mV

1025FA750-R

750mA

250V

125V

50

50

-

0.5550

0.143

880mV

1025FA1-R

1

250V

125V

50

50

-

0.2800

1.750

560mV

1025FA1.5-R

1.5

250V

125V

50

50

-

0.1140

1.460

260mV

1025FA2-R

2

250V

125V

50

50

-

0.0750

6.086

258mV

1025FA2.5-R

2.5

250V

125V

50

50

-

0.0510

8.48

232mV

1025FA3-R

3

250V

125V

50

50

-

0.0384

18.15

205mV

1025FA3.5-R

3.5

250V

125V

50

50

-

0.0305

17.83

185mV

1025FA4-R

4

250V

125V

50

50

-

0.0275

23.32

190mV

1025FA5-R

5

250V

125V

50

50

-

0.0195

38.74

180mV

1025FA7-R

7

250V

60V

50

-

50

0.0116

138

150mV

1025FA10-R

10

250V

60V

50

-

50

0.0072

457

146mV

1025FA12-R

12

250V

60V

50

-

50

0.0056

498

120mV

1025FA15-R

15

250V

60V

50

-

50

0.0039

1451

110mV

* AC interrupting rating (measured at designated voltage, 100% power factor random closing); DC interrupting rating (measured at designated voltage, time constant of

less than 50 microseconds, battery source)

** DC cold resistance (measured at

≤10% of rated current)

than 50 microseconds). Test current not to exceed interrupting rating of 50A.

‡ Typical voltage drop (measured at rated current after temperature stabilizes)

• Device designed to carry rated current for four hours minimum. An operating current of 80% or less of rated current is recommended, with further derating required at

elevated ambient temperatures.