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Tvs diode arrays, General purpose esd protection - sp724 series, Diodes) – Littelfuse SP724 Lead-Free_Green Series User Manual

Page 5: Soldering parameters, Recommended solder pad layout

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© 2013 Littelfuse, Inc.

Specifications are subject to change without notice.
Revised: 11/25/13

TVS Diode Arrays

(SPA

®

Diodes)

General Purpose ESD Protection - SP724 Series

Package Dimensions — Small Outline Transistor Plastic Packages (SOT23-6)

Time

Te

mperatur

e

T

P

T

L

T

S(max)

T

S(min)

25

t

P

t

L

t

S

time to peak temperature

Preheat

Preheat

Ramp-up

Ramp-up

Ramp-down

Ramp-do

Critical Zone

T

L

to T

P

Critical Zone

T

L

to T

P

Reflow Condition

Pb – Free assembly

Pre Heat

- Temperature Min (T

s(min)

)

150°C

- Temperature Max (T

s(max)

)

200°C

- Time (min to max) (t

s

)

60 – 180 secs

Average ramp up rate (Liquidus) Temp
(T

L

) to peak

5°C/second max

T

S(max)

to T

L

- Ramp-up Rate

5°C/second max

Reflow

- Temperature (T

L

) (Liquidus)

217°C

- Temperature (t

L

)

60 – 150 seconds

Peak Temperature (T

P

)

260

+0/-5

°C

Time within 5°C of actual peak
Temperature (t

p

)

20 – 40 seconds

Ramp-down Rate

5°C/second max

Time 25°C to peak Temperature (T

P

)

8 minutes Max.

Do not exceed

260°C

Soldering Parameters

Notes:
1. Dimensioning and tolerances per ANSI 14.5M-1982.
2. Package conforms to EIAJ SC-74 (1992).
3. Dimensions D and E1 are exclusive of mold flash, protrusions, or gate burrs.
4. Footlenth L measured at reference to seating plane.
5. “L” is the length of flat foot surface for soldering to substrate.
6. “N” is the number of terminal positions.
7. Controling dimension: MILLIMETER. Converted inch dimensions are not necessarily

exact.

Package

SOT23-6

Pins

6

JEDEC

MO-178

Millimeters

Inches

Notes

Min

Max

Min

Max

A

0.900

1.450

0.035

0.057

-

A1

0.000

0.150

0.000

0.006

-

A2

0.900

1.300

0.035

0.051

-

b

0.350

0.500

0.0138

0.0196

-

C

0.080

0.220

0.0031

0.009

-

D

2.800

3.000

0.11

0.118

3

E

2.600

3.000

0.102

0.118

-

E1

1.500

1.750

0.06

0.069

3

e

0.95 Ref

0.0374 ref

-

e1

1.9 Ref

0.0748 Ref

-

L

0.100

0.600

0.004

0.023

4,5

N

6

6

6

a

10º

10º

-

M

2.590

0.102

-

O

0.690

.027 TYP

-

P

0.990

.039 TYP

-

R

0.950

0.038

-

O

P

R

M

Recommended Solder Pad Layout

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