Category: Hi-Rel Fuses

FM13

Features

AEM, Inc. is the sole U.S. manufacturer of solid body current limiting fuses produced utilizing thick film technology with subsequent screening and qualification for spacecraft/ satellite applications. AEM, Inc.’s Hi-Rel fuses have been selected by most major space programs and have been in orbit for decades with zero failures.

  • Consistent clearing times achieved at overload currents regardless of vacuum conditions

  • Solid body construction without outgassing and not subjected to the de-rating factors of MIL-STD-975

  • Solid body construction capable of withstanding greater vibration and shock exposure without damage

  • Positive temperature coefficient of fuse element causing resistance to increase (prior to opening) thereby preventing absolute short to the power source

  • Internal construction ensuring that arc, plasma and vapor are contained within the fuse package during overload current conditions

  • Groups A/B data supplied with each shipment and Group C inspection optional

Applications

  • Used in military and commercial satellites and spacecraft including manned space vehicles

  • Protection of power supplies, batteries and solar arrays

  • Isolation of redundant and branch circuits

  • Short circuit protection from fired squib and jettison circuitry

Electrical Characteristics

Fuse Part Number / Ratings

DC Resistance (Ohms) 1/

Overload Interrupt Time (Seconds) 2/

Maximum I2T (Ampere 2 Seconds) 3/

Style

Characteristic

Maximum Voltage (VDC)

Current Rating (Amps)

MIN

MAX

250%

400%

600%

250%

400%

600%

FM13

A

72 V

1/8A

6.375

10.625

.005-30.0

.0005-.015

.000075-.003

2.93

0.004

0.002

FM13

A

72 V

1/4A

1.875

3.125

.005-30.0

.0005-.015

.000075-.003

11.719

0.015

0.007

FM13

A

72 V

3/8A

1.125

1.875

.005-.5

.0005-.015

.000075-.003

0.439

0.034

0.015

FM13

A

72 V

1/2A

0.675

1.125

.005-.5

.0005-.015

.000075-.003

0.781

0.060

0.027

FM13

A

72 V

3/4A

0.225

0.375

.005-.5

.0005-.015

.000075-.003

1.758

0.135

0.061

FM13

A

72 V

1A

0.135

0.225

.005-.5

.0005-.015

.000075-.003

3.125

0.240

0.108

FM13

A

72 V

1.5A

0.097

0.163

.005-.5

.0005-.015

.000075-.003

7.031

0.540

0.243

FM13

A

72 V

2.0A

0.045

0.075

.005-.5

.0005-.015

.000075-.003

12.5

0.960

0.432

FM13

A

72 V

3.0A

0.0262

0.0438

.005-.5

.0005-.015

.000075-.003

28.125

2.16

0.972

FM13

A

72 V

4.0A

0.0195

0.0325

.005-.5

.0005-.015

.000075-.003

50.0

3.84

1.728

FM13

A

72 V

5.0A

0.0135

0.0225

.005-.5

.0005-.015

.000075-.003

78.125

6.00

2.70

FM13

A

72 V

6.0A

0.0100

0.0180

.005-.5

.0005-.015

.000075-.003

112.50

8.64

3.888

FM13

A

72 V

7.5A

0.0070

0.0110

.005-.5

.0005-.015

.000075-.003

175.781

13.50

6.075

FM13

A

72 V

10A

0.0046

0.0079

.005-.5

.0005-.015

.000075-.003

312.50

24.0

10.8

FM13

A

72 V

15A

0.0040

0.0075

.005-.5

.0005-.015

.000075-.003

703.125

54.0

24.30

FM13

A

50V

20A

0.0020

0.0056

.005-.5

.0005-.015

.000075-.003

1250.0

96.0

43.2

FM13

A

125V

1/8A

6.375

10.625

.005-30.0

.0005-.015

.000075-.003

2.93

0.004

0.002

FM13

A

125V

1/4A

1.875

3.125

.005-30.0

.0005-.015

.000075-.003

11.719

0.015

0.007

FM13

A

125V

3/8A

1.125

1.875

.005-.5

.0005-.015

.000075-.003

0.439

0.034

0.015

FM13

A

125V

1/2A

0.675

1.125

.005-.5

.0005-.015

.000075-.003

0.781

0.060

0.027

FM13

A

125V

3/4A

0.225

0.375

.005-.5

.0005-.015

.000075-.003

1.758

0.135

0.061

FM13

A

125V

1A

0.090

0.270

.005-.5

.0005-.015

.000075-.003

3.125

0.240

0.108

FM13

A

125V

1.5A

0.085

0.225

.005-.5

.0005-.015

.000075-.003

7.031

0.540

0.243

FM13

A

125V

2.0A

0.045

0.135

.005-.5

.0005-.015

.000075-.003

12.500

0.960

0.432

FM13

A

125V

3.0A

0.035

0.105

.005-.5

.0005-.015

.000075-.003

28.125

2.160

0.972

FM13

A

125 V

4.0A

0.030

0.090

.005-.5

.0005-.015

.000075-.003

50.0

3.84

1.73

FM13

A

125 V

5.0A

0.0220

0.0680

.005-.5

.0005-.015

.000075-.003

78.1

6.00

2.70

FM13

A

125 V

7.5A

0.0165

0.0275

.100-4.00

.008-.048

.0008-.008

1410

43.2

16.2

FM13

A

125 V

10.0A

0.0120

0.0200

.100-4.00

.008-.048

.0008-.008

2500

76.8

28.8

FM13

A

125 V

15.0A

0.0090

0.0130

.100-5.00

.010-.060

.001-.010

7030

216

81.0

FM13

A

135 V

1/8A

6.375

10.625

.005-30.0

.0005-.015

.000075-.003

2.93

0.00375

0.00169

FM13

A

135 V

1/4A

1.875

3.125

.005-30.0

.0005-.015

.000075-.003

11.7

0.0150

0.00675

FM13

A

135 V

3/8A

1.125

1.875

.005-.5

.0005-.015

.000075-.003

0.439

0.0338

0.0152

FM13

A

135 V

1/2A

0.675

1.125

.005-.5

.0005-.015

.000075-.003

0.781

0.0600

0.0270

FM13

A

135 V

3/4A

0.225

0.375

.005-.5

.0005-.015

.000075-.003

1.76

0.135

0.0608

FM13

A

135 V

1.0A

0.090

0.270

.005-.5

.0005-.015

.000075-.003

3.13

0.240

0.108

FM13

A

135 V

1.5A

0.0850

0.2250

.005-.5

.0005-.015

.000075-.003

7.03

0.540

0.243

FM13

A

135 V

2.0A

0.045

0.135

.005-.5

.0005-.015

.000075-.003

12.5

0.960

0.432

FM13

A

135 V

3.0A

0.035

0.105

.005-.5

.0005-.015

.000075-.003

28.1

2.16

0.972

FM13

A

135 V

4.0A

0.030

0.090

.005-.5

.0005-.015

.000075-.003

50.0

3.84

1.73

FM13

A

135 V

5.0A

0.0220

0.0680

.005-.5

.0005-.015

.000075-.003

78.1

6.00

2.70

FM13

A

135 V

7.5A

0.0165

0.0275

.100-4.00

.008-.048

.0008-.008

1410

43.2

16.2

FM13

A

135 V

10.0A

0.0120

0.0200

.100-4.00

.008-.048

.0008-.008

2500

76.8

28.8

FM13

A

135 V

15.0A

0.0090

0.0130

.100-5.00

.010-.060

.001-.010

7030

216

81.0