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RLD78NZH2
Laser diodes
AlGaAs laser diodes
RLD78NZH2
The RLD78NZH2 is the best suitable laser diode for high-speed laser printer and PPC. The power limits is 10mW to print at high-speed.
0.40.1
1.0Min.
Applications High-speed laser printers PPC
External dimensions (Unit : mm)
902
Equivalent circuit diagram
(3)
4.4+0
N t y p e
L.D. (1)
3.6
1.20.1 6.50.5 2.3
Features 1) Absolutemax. output power 10mW. 2) High-precision, compact package. (5.6mm) 3) Low droop. 4) Can be driven by single power supply (N type).
1.00.1
P.D. (2)
Optical distance 1.35
5.6
+0 -0.025
Glass window Chip
3-0.45
(3)
(2) (1)
Absolute maximum ratings (Tc=25C)
Parameter
Output
Reverse voltage
Symbol PO VR VR (PIN) Topr Tstg
Limits 10 2 30 -10 to +60 -40 to +85
Unit mW V V C C
Laser PIN photodiode
Operating temperature Storage temperature
1/2
RLD78NZH2
Laser diodes
Electrical and optical characteristics (Tc=25C)
Parameter
Threshold current Operating current Operating voltage Differential efficiency Monitor current Parallel divergence angle Perpendicular divergence angle Parallel deviation angle Perpendicular deviation angle Emission point accuracy Peak emission wavelength Droop
Symbol Ith Iop Vop Im //
Min. - - - 0.2 0.2 8 25 - - -100 770 -
Typ. 20 40 1.9 0.4 0.4 11 30 - - - 785 5
Max. 45 65 2.3 0.8 1.0 15 38 2 3 +100 795 10
Unit mA mA V mW/mA mA deg deg deg deg m nm %
Conditions - PO=6mW PO=6mW 4mW I(6mW) - I(2mW)
PO=6mW
//
X Y Z P
PO=6mW
- PO=6mW PO=6mW
// and are defined as the angle within which the intensity is 50% of the peak value.
Electrical and optical characteristic curves
vf Po [v] [mW]
3
10
0
.5
[ IL ] Im [mA] 1
1.5
I-L
25C 50C 60C 70C 80C 90C
2
Se [W/A]
1
1
1
8 2 6
I-Vf
0.8
.8
.8
0.6
.6
.6
4 1
I-
0.4
.4
.4
2 0 0 0 25 50 IF (mA) 75
0.2 0 100
.2
.2
0 -60
-40
-20
0
20
40
60
0 -60
-40
-20
0
20
40
60
ANGLE (deg.)
ANGLE (deg.)
Fig.1 Dependence of I-L on temperature
20 18 16 14
Droop (%)
Fig.2 Parallel far field pattern
Fig.3 Perpendicular far field pattern
12 10 8 6 4 2 00 2 4 6 Po (mW)
60C
25C
8
10
12
Fig.4 Dependence of droop on output power and temperature
2/2
Appendix
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document are no antiradiation design.
The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. About Export Control Order in Japan Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control Order in Japan. In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause) on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
Appendix1-Rev1.1

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