MF-USHT Series - PTC Resettable Fuses

Specifications are subject to change without notice.

Users should verify actual device performance in their specific applications.

Packaging Quantity

MF-USHT010KX ~

MF-USHT075KX............. 3000 pcs. per reel

MF-USHT110KX ~

MF-USHT150KX............. 2000 pcs. per reel

How to Order

MF - USHT 050 K X - 2

Designator

Series

USHT = 1210 High Temperature

Surface Mount

Component

Hold Current, Ihold

010 - 150 (0.10 - 1.50 Amps)

Material Specific Code

Packaging

-2 = Tape and Reel

Packaged per EIA-481

Typical Part Marking

Represents total content. Layout may vary.

PART IDENTIFICATION:

MF-USHT010KX = B

MF-USHT016KX = D

MF-USHT020KX = E

MF-USHT035KX = F

MF-USHT050KX = K

MF-USHT075KX = L

MF-USHT110KX = N

MF-USHT125KX = P

MF-USHT150KX = S

BIWEEKLY DATE CODE:

WEEK 1 AND 2 = A

WEEK 51 AND 52 = Z

K

C

Solder Reflow Recommendations

Notes:

•

MF-USHT models are intended for reflow soldering (including, but not

limited to heating plate, hot air, IR, nitrogen, and vapor phase).

•

Wave soldering is permissible only if the device is on the top of the

PCB, opposite the heat source.

•

Hand soldering is not recommended for these devices.

•

All temperatures refer to the topside of the device, measured on the

device body surface.

•

If reflow temperatures exceed the recommended profile, devices may

not meet the published specifications.

•

Compatible with Pb and Pb-free solder reflow profiles.

•

Excess solder may cause a short circuit.

•

Please refer to the Multifuse® Polymer PTC Resettable Fuse Soldering

Recommendations document for more details.

TP

TP

tp

t s

TTO

RAMP-UP

L

TL

t L

25

Ts max

Ts min

PREHEAT

Time

CRITICAL ZONE

RAMP-DOWN

t 25 °C TO PEAK

Profile Feature

Pb-Free Assembly

3 °C / second max.

PREHEAT:

150 °C

200 °C

60~180 seconds

TIME MAINTAINED ABOVE:

217 °C

60~150 seconds

260 °C

20~40 seconds

Ramp-Down Rate

6 °C / second max.

Time 25 °C to Peak Temperature

8 minutes max.