Sumitomo Electric Industries, Ltd.
Part No.: SLT4400-xx-S460 Series
Document No.: HUW0024123-01E
Date of issue: February, 1, 2008
Page 1 of 8
Technical Specification
of
1.625µm MQW-DFB Laser Diode Module
for Supervisory Channel up to 622Mb/s transmission
SLT4400-xx-S460 Series
RoHS Compliant
Sumitomo Electric Industries, Ltd.
Part No.: SLT4400-xx-S460 Series
Document No.: HUW0024123-01E
Date of issue: February, 1, 2008
Page 2 of 8
1. General
SLT4400-xx-S460 Series are 1.625µm InGaAsP/InP MQW-DFB laser diode modules designed for
fiber optic communication systems. These modules are ideally suitable
for long reach and intermediate reach of up to 622Mb/s transmission applications.
A laser diode is mounted into a coaxial package integrated with an InGaAs monitor PD and a single
mode fiber pigtail.
2. Package dimension and pin assignment
(See attached appendix.)
3. Absolute maximum ratings
Parameter Symbol Ratings Unit
Storage temperature Tstg -40~+85 °C
Operating case temperature Top -20~+70 °C
Fiber output power Pf 2 mW
Forward current (LD) IfL 150 mA
Reverse voltage (LD) VrL 2 V
Reverse voltage (PD) VrP 15 V
Reverse current (PD) IrP 2 mA
Soldering temperature (<10s) Stemp 260 °C
Sumitomo Electric Industries, Ltd.
Part No.: SLT4400-xx-S460 Series
Document No.: HUW0024123-01E
Date of issue: February, 1, 2008
Page 3 of 8
4. Electrical and optical characteristics (Pf=2mW, Tc=25°C, unless otherwise noted.)
Parameter Symbol Condition Min. Typ. Max. Unit
CW — 10 20 Threshold current Ith CW, Tc=-20~+70°C — — 50 mA
CW, If=Ith+20mA 1.0 2 2.5 Optical output power Pf CW, If=Ith+20mA, Tc=-20~+70°C 0.5 — 4.0 mW
Operating voltage Vf CW, Tc=-20~+70°C — — 1.7 V
CW, Average(Ith to Ith+20mA)
0.050 — 0.125Slope efficiency Se
CW, Average(Ith to Ith+20mA)
Tc=-20~+70°C 0.025 — 0.200
mW/mA
CW 1620 1625 1630Peak wavelength λp CW, Tc=-20~+70°C 1613 — 1637 nm
Side-mode suppression ratio SSR CW, Tc=-20~+70°C 30 — — dB
Tracking error ΔPf Im hold(@Pf=2mW(25°C)), CW
Tc=-20~+70°C -1.0 — 1.0 dB
Rise time tr Ib=Ith, 20-80%, Tc=-20~+70°C — 0.05 0.10 ns
Fall time tf Ib=Ith, 80-20%, Tc=-20~+70°C — 0.10 0.15 ns
Extinction ratio Er 10log(2mW/Pf(Ith)), Tc=-20~+70°C 10 — — dB
Monitor current Im CW, VrP=5V, Tc=-20~+70°C 50 — 1500 µA
Monitor dark current Id VrP=5V — 1 10 nA
Monitor capacitance C VrP=5V, f=1MHz — — 10 pF
Note: Since the SLT4400-xx-S460 Series have no optical isolator inside, to integrate externally an optical
isolator is recommended for long reach of transmission applications.
5. Fiber pigtail specification
Parameter Min. Typ. Max. Unit
Type Single Mode —
Mode field diameter@1310nm 8.5 9.5 10.5 µm
Cladding diameter 122 125 128 µm
Outer jacket diameter 0.8 0.9 1.0 mm
Bending radius 30 — — mm
Sumitomo Electric Industries, Ltd.
Part No.: SLT4400-xx-S460 Series
Document No.: HUW0024123-01E
Date of issue: February, 1, 2008
Page 4 of 8
6. Ordering Information
Part number Pin assignment Optical isolator Connector type Flange type
(hole pitch) Old part number RoHS compliance of
old part number
SLT4400-CN/RH1-S460 Flangeless SLT4400-CN-S460
SLT4400-CP/RH1-S460 Vertical (12mm) SLT4400-CP-S460
SLT4400-CS/RH1-S460
SC/PC
Horizontal (12.7mm) SLT4400-CS-S460
Not Compliant
(*2)
SLT4400-XN-S460 Flangeless SLT4400-XN-S460
SLT4400-XP-S460 Vertical (12mm) SLT4400-XP-S460
SLT4400-XS-S460
T ype A
No isolator
No connector
Horizontal (12.7mm) SLT4400-XS-S460 Compliant
Note:*2. Some products in this category have been already RoHS compliant.
If any query, please contact us with part number and serial number.
7. Precaution
(1) Radiation emitted by laser devices can be dangerous to the eyes. Avoid eye or skin exposure to
direct or scattered radiation.
(2) The modules should be handled in the same manner as ordinary semiconductor devices to
prevent the electro-static damages. For safe keeping and carrying, the modules should be
packaged with ESD proof material. To assemble the modules on PCB, the workbench, the
soldering iron and the human body should be grounded.
(3) The stress to the fiber pigtail may cause the damage on the performance. The fiber pigtail may
snap off by dropping the module.
(4) Please pay special attention to the atmosphere condition because the dew on the module may
cause some electrical damages.
(5) Under such a strong vibration environment as in automobile, the performance and reliability are
not guaranteed.
Sumitomo Electric Industries, Ltd.
Part No.: SLT4400-xx-S460 Series
Document No.: HUW0024123-01E
Date of issue: February, 1, 2008
Page 5 of 8
8. RoHS Compliancy
On January 27, 2003, the European Parliament and the Council of the European Union issued the
directive 2002/95/EC on the restriction of the use of certain hazardous substances in electrical and
electronic equipment (RoHS).
Member States shall ensure that, from July 1, 2006, new electrical and electronic equipment put on
the market does not contain lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls
(PBB) or polybrominated diphenyl ethers (PBDE).
Applications listed in the Annex are exempted.
This product is compliant with RoHS 6/6 directive with exemptions “Lead in glass of cathode ray tubes,
electronic components and fluorescent tubes” and “Lead as an alloying element in steel containing up
to 0.35 % lead by weight, aluminium containing up to 0.4 % lead by weight and as a copper alloy
containing up to 4 % lead by weight”.
Sumitomo Electric Industries, Ltd.
Part No.: SLT4400-xx-S460 Series
Document No.: HUW0024123-01E
Date of issue: February, 1, 2008
Page 6 of 8
9. Appendix
Note: *1. IEC and JIS compliant. Detailed design not specified in the IEC and JIS
standards is a subject to change without notice.
8±0.28±0.2
8±0.3
12.7
17±0.3
2-φ2.4
4
12 min.
30±1
Horizontal flange
1.0
11 min.2.5
φ4.5
12
18 ±0.2
φ 7.2
2-φ2.2
30±1
Vertical flange
30±1
φ (5.7)
φ 6.5
12 min.
4-φ0.45
P.C.D. 2±0.5
φ6.5
Flangeless
1
2
3
4
Type A
1
2
3
4
Type A
1
2
3
4
Type C
1
2
3
4
1
2
3
4
Type C
1
2
3
4
Type A
1
2
3
4
Type A
1
2
3
4
Type C
1
2
3
4
1
2
3
4
Type C
Type C
1
2
3
4
Type C
1
2
3
41
2
3
4
1
2
3
4
Type A
1
2
3
41
2
3
4
Type A
770 min
700 min
No connector
770 min
FC/PC connector
SC/PC connector
(*1)
Pin No. Pin function
for type C
1 (CASE)
2LD cathode
3 PD anode
4LD anode/
PD cathode
(Customize Code)
Pin No. Pin function
for type A
1 LD anode (CASE)
2 LD cathode
3 PD cathode
4 PD anode
Connector type Flange ty pe Pin assignmen t
Code Flange type
N Flangeless
P Vertical (12.0mm)
S Horizonta l ( 1 2. 7mm)
Code Pin assignment
0 Type A
6 Type C
Part No.: SLT440-/−S460
Code Connector Type
CSC/PC
DFC/PC
X No Connector
(*1)
Sumitomo Electric Industries, Ltd.
Part No.: SLT4400-xx-S460 Series
Document No.: HUW0024123-01E
Date of issue: February, 1, 2008
Page 7 of 8
10. For More Information
U.S.A.
ExceLight Communications Inc.
4021 Stirrup Creek Drive, Suite 200, Durham NC, 27703
U.S.A.
Tel. (919) 361-1600
Fax. (919) 361-1619
E-mail: info@excelight.com
URL: http://www.excelight.com
Europe
Sumitomo Electric Europe Ltd.
220 Centennial Park, Centennial Avenne, Elstree, Herts, WD6 3SL
United Kingdom
Tel. (020) 8953-8118
Fax. (020) 8207-5950
URL: http://www.sumielectric.com
Japan
Sumitomo Electric Industries, Ltd. (Opto-electronic Products Sales Div.)
3-12, Moto-Akasaka 1-chome, Minato-ku Tokyo, 107-8468
Japan
Tel. (03) 3423-5031
Fax. (03) 3423-5247
E-mail: product_info@ppd.sei.co.jp
URL: http://www.sei.co.jp/Electro-optic/index_e.html
Sumitomo Electric Industries, Ltd.
Part No.: SLT4400-xx-S460 Series
Document No.: HUW0024123-01E
Date of issue: February, 1, 2008
Page 8 of 8
Revision Record
Document No. Date of issue Description Incorporated by Checked by Approved by
HUW0024123-01A Mar./20/01 Preliminary issue. R. Shigemoto T. Nakanishi M. Yoshimura
HUW0024123-01B Feb./15/02 Revised Top and the condition of
all parameters from Tc=-40~+85°C
to Tc=-20~+70°C;
Collected the tolerance of the
horizontal flange dimension from
±0.2mm to ±0.3mm.
T. Nakanishi Y. Yamasaki M. Yoshimura
HUW0024123-01C Apr./10/02 Collected Se on condition of
Tc=-20~+70°C from max.:
0.15mW/mA to max.:
0.200mW/mA.
Y. Yamasaki T. Nakanishi M. Yoshimura
HUW0024123-01D Aug./09/06 Added RoHS Compliacy.
N. Fukushima T. Kounosu
Y. Yamasaki M. Yoshimura
HUW0024123-01E Feb./01/08 Removed SLT4460-xx-S460.
Revised RoHS compliancy. T. Takagi N. Fukushima
Y. Yamasaki
H. Michikoshi
