GH0781JA2C - Sharp Electronics Corp.

GH0781JA2CLaser Diodes

Notice In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP

devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.

Internet Internet address for Electronic Components Group http://sharp-world.com/ecg/

GH0781JA2C

■Features

(1) Maximum optical power output : 120mW (CW)

(2) High power (pulse MAX. 180mW), MAX. ◊32 speed writing

(3) High coupling efficiency.

The ellipticity (θ⊥/θ//) is close to 1.

(4) Wavelength : TYP. 784nm

(5) φ5.6mm package

■Applications

(1) CD-R drives

(2) CD-RW drives

■Outline Dimensions

High Power Laser Diode for MAX. ✕32

Speed CD-R Drive(784nm-pulse 180mW)

(Unit : mm)

Reference plane

Laser chip

Emission point

Cap glass

ø2.0

0.4±0.1

1.0±0.15

0.25±0.03

0.4±0.1

3-ø0.45±0.1

ø1.2 MAX.

0.5 MIN.

ø3.55±0.1

ø5.6+

–0

0.025

ø4.4MAX.

ø1.0 MIN.

0.5 MAX.

burr0.1 MAX.

2.3±0.5

1.2±0.1

1.27±0.08

6.5±1.0

Tolerance ±0.2mm

❇2

❇1

±2

■Absolute Maximum Ratings (TC=25˚C ❇1)

Terminal connection

Enlarged view of emission point

Non connection

Laser

diode

Center of virtual circle that runs

3 points on the stem periphery

Emission point

0±0.08

Parameter Symbol Rating Unit

Reverse voltage Vrl 2V

❇1

Operating temperature

❇3CW Topc(c) -10 to +65 ˚C

❇2Pulse -10 to +75

Storage temperature Tstg -40 to +85 ˚C

❇4Soldering temperature Tsld 300 ˚C

❇1Case temperature

❇2Pulse width : 0.5µs, Duty : 50%

❇3CW (Continuous Wave) drive

❇4At the position of 1.6mm or more from

the lead base (Within 3s)

❇3Optical power output PO120 mW

❇2Optical power output (pulse) Pp180

Laser

Topp(c) ˚C

❇1 : Dimension measured at lead base

❇2 : Within 0.6mm from reference plane

Notice In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP

devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.

Internet Internet address for Electronic Components Group http://sharp-world.com/ecg/

GH0781JA2CLaser Diodes

■Electro-optical Characteristics❇1(TC=25˚C)

Parameter Symbol MAX. Unit

Threshold current Ith 40 mA

Half intensity angle

❇2❇3

Parallel θ// 9.6 ˚

17.5

❇4Ripple Rl+20 %

Misalignment angle ∆θ⊥ +2.5

❇1Initial value, CW (Continuous Wave) drive

❇2Angle at 50% peak intensity (full-width at half-maximum)

❇3Parallel to the junction plane (X-Z plane)

Perpendicular to the junction plane (Y-Z plane)

❇4Rl=∆P/P ∆P : the maximum deviation of the far field pattern from its approximate curve P : the peak of the approximate curve

❇5Pulse drive (Pulse width : 0.5µs, Duty : 50%)

Conditions MIN. TYP.

−-30

7.8 8.7

❇2❇3

Perpendicular

14.5 16

-20 -

-2.5 -

Operating current Iop

Po=100mW

-141 167 mA

Operating voltage Vop - 2.1 2.5 V

Wavelength λp780 784 787 nm

θ⊥

❇3

Parallel ∆θ// -1.5 - +1.5 ˚

❇3

Perpendicular

Interference pattern intensity αPo=100mW - - 1 -

Polarization ratio PlPo=3mW, NA=0.13 20 - - -

Differential efficiency ηd70mW

I(100mW)-I(30mW) 0.8 0.9 1.2 mW/mA

❇5Kink K-LI P1=36mW, P2=108mW, P3=180mW - - 10 %

• Please refer to the chapter "Handling Precautions"

150

Application Circuits

NOTICE

●The circuit application examples in this publication are provided to explain representative applications of

SHARP devices and are not intended to guarantee any circuit design or license any intellectual property

rights. SHARP takes no responsibility for any problems related to any intellectual property right of a

third party resulting from the use of SHARP's devices.

●Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.

SHARP reserves the right to make changes in the specifications, characteristics, data, materials,

structure, and other contents described herein at any time without notice in order to improve design or

reliability. Manufacturing locations are also subject to change without notice.

●Observe the following points when using any devices in this publication. SHARP takes no responsibility

for damage caused by improper use of the devices which does not meet the conditions and absolute

maximum ratings to be used specified in the relevant specification sheet nor meet the following

conditions:

(i) The devices in this publication are designed for use in general electronic equipment designs such as:

--- Personal computers

--- Office automation equipment

--- Telecommunication equipment [terminal]

--- Test and measurement equipment

--- Industrial control

--- Audio visual equipment

--- Consumer electronics

(ii)Measures such as fail-safe function and redundant design should be taken to ensure reliability and

safety when SHARP devices are used for or in connection with equipment that requires higher

reliability such as:

--- Transportation control and safety equipment (i.e., aircraft, trains, automobiles, etc.)

--- Traffic signals

--- Gas leakage sensor breakers

--- Alarm equipment

--- Various safety devices, etc.

(iii)SHARP devices shall not be used for or in connection with equipment that requires an extremely

high level of reliability and safety such as:

--- Space applications

--- Telecommunication equipment [trunk lines]

--- Nuclear power control equipment

--- Medical and other life support equipment (e.g., scuba).

●Contact a SHARP representative in advance when intending to use SHARP devices for any "specific"

applications other than those recommended by SHARP or when it is unclear which category mentioned

above controls the intended use.

●If the SHARP devices listed in this publication fall within the scope of strategic products described in the

Foreign Exchange and Foreign Trade Law of Japan, it is necessary to obtain approval to export such

SHARP devices.

the copyright laws, no part of this publication may be reproduced or transmitted in any form or by any

means, electronic or mechanical, for any purpose, in whole or in part, without the express written

permission of SHARP. Express written permission is also required before any use of this publication

may be made by a third party.

●Contact and consult with a SHARP representative if there are any questions about the contents of this

publication.