24

SMD Thin-Film Fuse

ELECTRICAL SPECIFICATIONS

Operating Temperature: -55°C to +125°C

Current carrying capacity at -55°C is 107% of rating;

at +25°C 100% of rating; at +85°C 93% of rating;

at +125°C 90% of rating.

Rated Voltage: 32V

Interrupting Rating: 50A

Insulation Resistance: >20MΩ guaranteed (after fusing at rated voltage)

Test

Conditions

Requirement

Solderability

Components completely immersed in a

Terminations to be well tinned

solder bath at 235 ±5°C for 2 secs.

No visible damage

Leach Resistance

Completely immersed in a solder bath

Dissolution of termination

at 260 ±5°C for 60 secs.

≤ 25% of area

ΔR/R<10%

Storage

12 months minimum with components

Good solderability

stored in “as received” packaging.

Shear

Components mounted to a substrate.

No visible damage

A force of 5N applied normal to the

line joining the terminations and in

a line parallel to the substrate.

Rapid Change of

Components mounted to a substrate.

No visible damage

Temperature

5 cycles -55°C to +125°C.

Δ R/R<10%

Vibration

Per Mil-Std-202F

No visible damage

Method 201A and

ΔR/R<10%

Method 204D Condition D.

Load Life

25°C, I rated, 20,000 hrs.

No visible damage

ΔR/R<10%

1206

Current

Resistance

Voltage Drop

Fusing Current

Pre-Arc

Part Number

Rating @ 10% x I rated, 25°C @ 1 x I rated, 25°C (within 5 sec.) 25°C

A

Ω (Max.)

mV (Max.)

A

F1206A0R20FWTR

0.200

0.95

350

0.40

0.00002*

F1206A0R25FWTR

0.250

0.75

280

0.50

0.00004*

F1206A0R37FWTR

0.375

0.40

220

0.75

0.00006

F1206A0R50FWTR

0.500

0.35

220

1.00

0.0002

F1206A0R75FWTR

0.750

0.25

220

1.50

0.003

F1206A1R00FWTR

1.000

0.18

220

2.00

0.005

F1206A1R25FWTR

1.250

0.15

220

2.50

0.009

F1206A1R50FWTR

1.500

0.11

220

3.00

0.02

F1206A1R75FWTR

1.750

0.10

210

3.50

0.035

F1206A2R00FWTR

2.000

0.065

160

4.00

0.04

* Current is limited to less than 50A at 32V due to internal fuse resistance.

ENVIRONMENTAL CHARACTERISTICS