KMP_78253C_D05 Page 2 of 5

78253 Series

MAX253 Compatible Converter Transformers

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PACKAGE SPECIFICATIONS

MECHANICAL DIMENSIONS

RECOMMENDED FOOTPRINT DETAILS

6 Pin DIL

6 Pin SM

ABSOLUTE MAXIMUM RATINGS

Operating free air temperature range

-40°C to 85°C

Storage temperature range

-50°C to 125°C

Lead Temperature 1.5mm from case for 10 seconds

300°C

Peak current I

PK

400mA

Isolation voltage 78253/XX(M)C (flash tested for 1 second)

Isolation voltage 78253/XX(M)VC (flash tested for 1 second)

0.135±0.02

(3.44±0.50)

0.25

(6.35)

0.354

(9.0) MAX

0.375

(9.52) MAX

0.012(0.30)

0.008(0.20)

0.40

(10.16)

0.1 (2.54)

0.025 (0.63)

0.021 (0.53)

0.354

(9.0) MAX

0.375

(9.52) MAX

0.5

(12.70)

0.025 (0.63)

0.021 (0.53)

0.1

(2.54)

0.035

(0.90)

0.012 0.30

(0.008 0.20)

0.25

(6.35)

78253/55MC

XYYWW

78253/35C

XYYWW

Primary

Secondary

Primary

Secondary

1

2

3

6

4

5

1

2

3

6

4

5

0.10 (2.54)

0.10 (2.54)

Ø0.05 (1.20) +0.006 (0.15)

-0.000 (0.00)

0.45

(11.50)

0.10 (2.54)

0.04

(1.00)

0.06 (1.60)

6 Pin DIL

6 Pin SM

Unless otherwise stated all dimensions in inches (mm) ±0.01 (0.25).

All pins on a 0.1 (2.54) pitch and within ±0.01 (0.25) of true position.

Package weight 1.0g Typ.

0.10 (2.54)

0.10 (2.54)

Ø0.05 (1.20) +0.006 (0.15)

-0.000 (0.00)

0.45

(11.50)

0.10 (2.54)

0.04

(1.00)

0.06 (1.60)

Unless otherwise stated all dimensions in inches (mm) ±0.01 (0.25).

All pins on a 0.1 (2.54) pitch and within ±0.01 (0.25) of true position.

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