HL6321G/22G
AlGaInP Laser Diodes
ADE-208-598C (Z)
4th Edition
Dec. 2000
Description
The HL6321G/22G are 0.63 µm band AlGaInP laser diodes with a multi-quantum well (MQW) structure.
They are suitable as light sources for laser levelers and optical equipment for measurement.
Application
Laser levelers
Measurement
Features
Visible light output: 635 nm Typ (nearly equal to He-Ne gas laser)
Optical output power: 15 mW CW
Low operating current: 105 mA Max
Low operating voltage: 2.7 V Max
TM mode oscillation
LD LDPD PD
1 1
3 3
2
Internal Circuit
HL6321G Internal Circuit
HL6322G
Package Type
HL6321G/22G: G2
2
HL6321G/22G
2
Absolute Maximum Ratings (TC = 25°C)
Item Symbol Rated Value Unit
Optical output power PO15 mW
LD reverse voltage VR(LD) 2V
PD reverse voltage VR(PD) 30 V
Operating temperature Topr –10 to +50 °C
Storage temperature Tstg –40 to +85 °C
Optical and Electrical Characteristics (TC = 25°C)
Item Symbol Min Typ Max Unit Test Conditions
Optical output power PO15 mW Kink free
Threshold current Ith 20 55 75 mA
Operating current IOP 85 105 mA PO = 15 mW
Operating voltage VOP 2.7 V PO = 15 mW
Slope efficiency ηs 0.3 0.7 mW/mA 9 (mW) / (I(12mW) – I(3mW))
Beam divergence
parallel to the junction θ// 5 8 11 deg. PO = 15 mW
Beam divergence
parpendicular to the junction θ⊥ 24 30 36 deg. PO = 15 mW
Lasing wavelength λp 625 635 642 nm PO = 15 mW
Monitor current IS0.07 0.20 0.45 mA PO = 15 mW, VR(PD) = 5 V
HL6321G/22G
3
Typical Characteristic Curves
15
10
5
00 150
25°C
50°C
TC = 10°C
VR(PD) = 5V
TC = 25°C
TC = 10°C
0.20
0.15
0.10
0.05
010515
0
10050
0.2
0.4
0.6
0.8
1.0
40 0 40
0
PO = 15mW
TC = 25°C
625 630 635 640 645 650
PO = 15mW
PO = 5mW
PO = 1mW
TC = 25°C
Optical output power, PO (mW)
Foward current, IF (mA)
Optical Output Power vs. Foward Current
Optical output power, PO (mW)
Monitor current, IS (mA)
Monitor Current vs. Optical Output Power
Angle, θ (deg.)
Relative intensity
Far Field Pattern
Lasing Spectrum
Wavelength, λp (nm)
Relative intensity
HL6321G/22G
4
Typical Characteristic Curves (cont)
10 0 10 20 30 40
0
0.1
0.2
0.3
0.4
50
PO = 15 mW
VR(PD) = 5 V
630
635
645
650
640
10 0 10 20 30 40 50
PO = 15 mW
10 0 5040302010
10 0 5040302010 0
0.2
0.4
0.6
0.8
1.0
200
100
20
50
Case temperature, TC (°C) Case temperature, TC (°C)
Threshould current, Ith (mA)
Threshold Current vs. Case Temperature Slope Efficiency vs. Case Temperature
Slope efficiency, ηs (mW/mA)
Monitor Current vs. Case Temprature
Case temperature, TC (°C)
Monitor current, IS (mA)
Lasing Wavelength vs. Case Temperature
Lasing wavelength, λp (nm)
Case temperature, TC (°C)
HL6321G/22G
5
Typical Characteristic Curves (cont)
8
6
4
2
002 64 810
10 TC = 25°C
NA = 0.55
0 5 10 15
0
200
400
600
800 NA = 0.4
1000 TC = 25°C
Optical output power, PO (mW)
Astigmastism, AS (µm)
Astigmastism vs. Optical Output Power Polarization Ratio vs. Optical Output Power
Optical output power, PO (mW)
Polarization ratio
Reverse (C : 100pF, R : 1.5k)
N = 5pcs
judgment : IO 10%
Survival Rate (%)
Electrostatic Destruction (Reverse)
Survival Rate (%)
Applied Voltage (V) Applied Voltage (kV)
Electrostatic Destruction (Forward)
Forward (C : 100pF, R : 1.5k)
N = 5pcs
judgment : IO 10%
100
80
60
40
20
00231
0 500 1000
100
80
60
40
20
0
HL6321G/22G
6
Package Dimensions
Hitachi Code
JEDEC
EIAJ
Mass
(reference value)
LD/G2
1.1 g
Unit: mm
123
1
2
3
9.0
+0
–0.025
φ1.0 ± 0.1
0.4
+0.1
–0
(0.65)
(90°)
φ
7.2
+0.3
–0.2
φ
φ6.2 ± 0.2
( 2.0)
φ
Emitting Point
2.45
1.5 ± 0.1
9 ± 1
3 – 0.45 ± 0.1
3.5 ± 0.2 0.3
Glass
φ2.54 ± 0.35
HL6321G/22G
7
Cautions
1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent,
copyright, trademark, or other intellectual property rights for information contained in this document.
Hitachi bears no responsibility for problems that may arise with third party’s rights, including
intellectual property rights, in connection with use of the information contained in this document.
2. Products and product specifications may be subject to change without notice. Confirm that you have
received the latest product standards or specifications before final design, purchase or use.
3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However,
contact Hitachi’s sales office before using the product in an application that demands especially high
quality and reliability or where its failure or malfunction may directly threaten human life or cause risk
of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation,
traffic, safety equipment or medical equipment for life support.
4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly
for maximum rating, operating supply voltage range, heat radiation characteristics, installation
conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used
beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable
failure rates or failure modes in semiconductor devices and employ systemic measures such as fail-
safes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other
consequential damage due to operation of the Hitachi product.
5. This product is not designed to be radiation resistant.
6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without
written approval from Hitachi.
7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor
products.
1. The laser light is harmful to human body especially to eye no matter what directly or indirectly. The
laser beam shall be observed or adjusted through infrared camera or equivalent.
HL6321G/22G
8
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