SMF4L datasheet(5/6 Pages) LITTELFUSE

5 / 6 page

TVS Diodes

Surface Mount – 400W > SMF4L Series

Specifications are subject to change without notice.

Revised: 08/02/16

Physical Specifications

Case

SOD-123FL plastic over glass passivated

junction

Polarity

Color band denotes cathode except bipolar

Terminal

Matte tin-plated leads, solderable per

JESD22-B102

Environmental Specifications

High Temp. Storage

JESD22-A103

HTRB

JESD22-A108

Temperature Cycling

JESD22-A104

MSL

JEDEC-J-STD-020, Level 1

H3TRB

JESD22-A101

RSH

JESD22-A111

Soldering Parameters

Time (t)

Ts(min)

Ts(max)

Preheat

Ramp-up

Critical Zone

TL to TP

Ramp-down

t 25˚C to Peak

25˚C

Reflow Condition

Lead–free assembly

Pre Heat

- Temperature Min (T

s(min))

150°C

- Temperature Max (T

s(max))

200°C

- Time (min to max) (t

60 – 180 secs

Average ramp up rate (Liquidus Temp (T

to peak

3°C/second max

S(max) to TA - Ramp-up Rate

3°C/second max

Reflow

- Temperature (T

A) (Liquidus)

217°C

- Time (min to max) (t

60 – 150 seconds

Peak Temperature (T

260+0/-5 °C

Time within 5°C of actual peak

Temperature (t

20 – 40 seconds

Ramp-down Rate

6°C/second max

Time 25°C to peak Temperature (T

8 minutes Max.

Do not exceed

260°C

Dimensions

- SOD-123FL Package

Dimensions

Millimeters

Inches

Min

Max

Min

Max

2.90

3.10

0.114

0.122

3.50

3.90

0.138

0.154

0.85

1.05

0.033

0.041

1.70

2.00

0.067

0.079

0.43

0.83

0.017

0.033

0.10

0.25

0.004

0.010

0.00

0.10

0.000

0.004

0.90

1.08

0.035

0.043

1.6 (0.062)

Mounting Pad Layout

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