Specifications and information are subject to change without notice

WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • Web site: www.wj.com

Page 4 of 4 April 2007

ECG004

InGaP HBT Gain Block

ECG004B-G Mechanical Information

This package is lead-free/Green/RoHS-compliant. The plating material on the leads is NiPdAu. It is compatible with both lead-free

(maximum 260 °C reflow temperature) and leaded (maximum 245 °C reflow temperature) soldering processes.

Outline Drawing

Land Pattern

Thermal Specifications

Parameter

Rating

Operating Case Temperature

-40 to +85 °C

Thermal Resistance, Rth

167 °C/W

Product Marking

The component will be marked with an “E004G”

designator with an alphanumeric lot code on the

top surface of the package. The obsolete tin-lead

package is marked with an “E004” designator

followed by an alphanumeric lot code; it may

also have been marked with a “D” designator

followed by a 3-digit numeric lot code.

Tape and reel specifications for this part are

located on the website in the “Application

Notes” section.

MSL / ESD Rating

ESD Rating: Class 1A

Value:

Passes between 250 and 500V

Test:

Human Body Model (HBM)

Standard:

JEDEC Standard JESD22-A114

MSL Rating: Level 3 at +260 °C convection reflow

Standard:

JEDEC Standard J-STD-020

Mounting Config. Notes

1. Ground / thermal vias are critical for the proper performance of this

device. Vias should use a .35mm (#80 / .0135”) diameter drill and

have a final plated thru diameter of .25 mm (.010”).

2. Add as much copper as possible to inner and outer layers near the

part to ensure optimal thermal performance.

3. Mounting screws can be added near the part to fasten the board to a

heatsink. Ensure that the ground / thermal via region contact the

heatsink.

4. Do not put solder mask on the backside of the PC board in the

region where the board contacts the heatsink.

5. RF trace width depends upon the PC board material and

construction.

6. Use 1 oz. Copper minimum.

7. All dimensions are in millimeters (inches). Angles are in degrees.