©2016 Littelfuse, Inc.

Specifications are subject to change without notice.

Revision: 12/29/16

Lightning Surge Protection- SP4044 Series

Time

25

time to peak temperature

Preheat

Preheat

Ramp-up

Ramp-up

Ramp-down

Ramp-do

Critical Zone

Critical Zone

Reflow Condition

Pb – Free assembly

Pre Heat

- Temperature Min (T

150°C

- Temperature Max (T

200°C

- Time (min to max) (t

60 – 180 secs

Average ramp up rate (Liquidus) Temp (T

to peak

3°C/second max

T

3°C/second max

Reflow

- Temperature (T

217°C

- Temperature (t

60 – 150 seconds

Peak Temperature (T

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

Soldering Parameters

Product Characteristics

Lead Plating

Pre-Plated Frame

Lead Material

Copper Alloy

Lead Coplanarity

0.0004 inches (0.102mm)

Substrate Material

Silicon

Body Material

V-0 per UL 94 Molded Epoxy

Notes :

1. All dimensions are in millimeters

2. Dimensions include solder plating.

3. Dimensions are exclusive of mold flash & metal burr.

4. Blo is facing up for mold and facing down for trim/form, i.e. reverse trim/form.

5. Package surface matte finish VDI 11-13.

Clamping Voltage vs. I

PP

0.0

5.0

10.0

15.0

20.0

25.0

30.0

1.0

4.07.0

10.0

13.0

16.019.022.025.028.0

35.0

0

5

10

15

20

25

30

35

40

05

10

15

20

25

TLP Voltage (V)

Transmission Line Pulsing (TLP) Plot (Pin 1 to Pin2)