NO.

PQ38-01E

Product Specification and Approval Sheet Version 1 Page 1/4

Designed and manufactured by Fuzetec Technology Co., Ltd., offered by RFE International, Inc.

NOTE: Specification subject to change without notice.

2021/04/09

Surface Mountable PTC Resettable Fuse: Low Rho FSMD0402 Series

1. Summary

(a) RoHS Compliant & Halogen Free

(b) Applications: All high-density boards

(c) Product Features: Small surface mountable, Solid state, Faster time to trip than

standard SMD devices, Lower resistance than standard SMD devices

(d) Operation Current: 0.10~0.50A

(e) Maximum Voltage: 6VDC

(f) Temperature Range: -40℃ to 85℃

2. Agency Recognition

UL:

File No. E211981

C-UL:

File No. E211981

TÜV:

File No. R50090556

3. Electrical Characteristics (23℃)

Part

Number

Hold

Current

Trip

Current

Rated

Voltage

Max.

Current

Typical

Power

Max. Time to Trip

Resistance

Current

Time

RMIN

R1MAX

IH, A

IT, A

VMAX, VDC

IMAX, A

Pd, W

A

Sec.

Ohm

Ohm

FSMD010-0402RZ

0.10

0.30

6

100

0.5

0.5

1.0

0.150

2.000

FSMD020-0402RZ

0.20

0.50

6

100

0.5

1.0

1.0

0.100

1.250

FSMD035-0402RZ

0.35

0.70

6

100

0.5

8.0

0.1

0.050

0.700

FSMD050-0402RZ

0.50

1.00

6

100

0.5

8.0

0.1

0.040

0.400

IH=Hold current-maximum current at which the device will not trip at 23℃still air.

IT=Trip current-minimum current at which the device will always trip at 23℃ still air.

VMAX=Maximum voltage device can withstand without damage at it rated current (IMAX).

IMAX= Maximum fault current device can withstand without damage at rated voltage (VMAX).

Pd=Typical power dissipated-type amount of power dissipated by the device when in the tripped state in 23℃ still air environment.

RMIN=Minimum device resistance at 23℃ prior to tripping.

R1MAX=Maximum device resistance at 23℃ measured 1 hour after tripping or reflow soldering of 260℃ for 20 seconds.

Termination pad characteristics

Termination pad materials: Pure Tin