Sumitomo Electric Industries, Ltd.
Part No.: SLT2420-xN-xnnnx Series
Document No.: HUW9924209-01E
Data of issue: December 04, 2002
Page 1 of 8
Preliminary Specification
of
1.27µm~1.61µm MQW-DFB Laser Diode Module:
(Transmitter Optical Sub-assembly)
for CWDM of 622Mb/s and 2.5Gb/s transmission
SLT2420-xN-xnnnx Series
Sumitomo Electric Industries, Ltd.
Part No.: SLT2420-xN-xnnnx Series
Document No.: HUW9924209-01E
Data of issue: December 04, 2002
Page 2 of 8
1. General
SLT2420-xN-xnnnx Series are 1.27µm~1.61µm InGaAsP/InP MQW-DFB laser diode modules
designed for fiber optic communication systems. These modules are transmitter optical sub-assembly
with low threshold current and high performance at high temperature, and are ideally suitable for
CWDM of 622Mbps or 2.5Gbps transmission applications.
A laser diode is mounted into a φ5.6mm coaxial package integrated with an InGaAs monitor PD, a
singe-mode fiber-stub and a split sleeve for the SC optical connector.
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 0~+70 °C
Optical output power Pf 5 mW
Forward current (LD) IfL 150 mA
Reverse voltage (LD) VrL 2 V
Reverse current (PD) IrP 2 mA
Reverse voltage (PD) VrP 15 V
Soldering temperature (<10s) Stemp 260 °C
Sumitomo Electric Industries, Ltd.
Part No.: SLT2420-xN-xnnnx Series
Document No.: HUW9924209-01E
Data of issue: December 04, 2002
Page 3 of 8
4. Electrical and optical characteristics
(Pf=1.5mW, SMF(9.5/125µm), Tc=+25°C, unless otherwise noted.)
Parameter Symbol Condition Min. Typ. Max. Unit
CW — 10 20 Threshold current Ith CW, Tc=0~+70°C — — 50 mA
CW, If=Ith+20mA 1.0 1.5 3.0 Optical output power Pf CW, If=Ith+20mA, Tc=0~+70°C 0.5 — 5.0 mW
Operating voltage Vf CW, Tc=0~+70°C — — 1.7 V
Slope efficiency Se CW 0.05 0.075 0.15 mW/mA
Peak wavelength λp CW (*2) nm
Wavelength Temperature
Coeff — CW, Tc=0~+70°C 0.07 0.1 0.12 nm/°C
Side-mode suppression ratio SSR CW, Tc=0~+70°C 30 — — dB
Tracking error ∆Pf Im hold(@Pf=1.5mW(25°C)), CW
Tc=0~+70°C -1.5 — 1.5 dB
Rise time tr Ib=Ith, 20-80%, Tc=0~+70°C — 0.05 0.10 ns
Fall time tf Ib=Ith, 80-20%, Tc=0~+70°C — 0.10 0.15 ns
Extinction ratio Er 10log(1.5mW/Pf(Ith))
Tc=0~+70°C 10 — — dB
Monitor current Im CW, VrP=5V, Tc=0~+70°C 50 — — µA
VrP=5V — 1 10 Monitor dark current Id VrP=5V, Tc=0~+70°C — — 100 nA
Monitor capacitance C VrP=5V, f=1MHz — — 10 pF
Connector repeatability — (*1) -1 — +1 dB
Note: *1. Measured with SEI’s master plug and an extra receptacle.
Note: *2. Detail of peak wavelength specification
Rank A Rank B
Channel No. Min. Typ. Max. Unit Channel No. Min. Typ. Max. Unit
-K605A 1268 1270 1272 -K605B 1267 1270 1273
-K240A 1288 1290 1292 -K240B 1287 1290 1293
-J885A 1308 1310 1312 -J885B 1307 1310 1313
-J540A 1328 1330 1332 -J540B 1327 1330 1333
-J205A 1348 1350 1352 -J205B 1347 1350 1353
-H885A 1368 1370 1372 -H885B 1367 1370 1373
-H570A 1388 1390 1392 -H570B 1387 1390 1393
-H260A 1408 1410 1412 -H260B 1407 1410 1413
-G965A 1428 1430 1432 -G965B 1427 1430 1433
-G675A 1448 1450 1452 -G675B 1447 1450 1453
-G390A 1468 1470 1472 -G390B 1467 1470 1473
-G120A 1488 1490 1492 -G120B 1487 1490 1493
-F850A 1508 1510 1512 -F850B 1507 1510 1513
-F590A 1528 1530 1532 -F590B 1527 1530 1533
-F340A 1548 1550 1552 -F340B 1547 1550 1553
-F095A 1568 1570 1572 -F095B 1567 1570 1573
-E855A 1588 1590 1592 -E855B 1587 1590 1593
-E620A 1608 1610 1612
nm
-E620B 1607 1610 1613
nm
Sumitomo Electric Industries, Ltd.
Part No.: SLT2420-xN-xnnnx Series
Document No.: HUW9924209-01E
Data of issue: December 04, 2002
Page 4 of 8
5. Ordering information
Part number Pin assignment Number of pin Pin length
SLT2420-CN-xnnnx Type A 4 13.5±0.5mm
SLT2426-CN-xnnnx Type C 4 13.5±0.5mm
Channel (-xnnnx) p@25°C Range Status
-K605A 1270nm ±2nm Preliminary
-K605B ±3nm
-K240A 1290nm ±2nm
-K240B ±3nm
-J885A 1310nm ±2nm
-J885B ±3nm
-J540A 1330nm ±2nm
-J540B ±3nm
-J205A 1350nm ±2nm
-J205B ±3nm
-H885A 1370nm ±2nm
-H885B ±3nm
-H570A 1390nm ±2nm
-H570B ±3nm
-H260A 1410nm ±2nm
-H260B ±3nm
-G965A 1430nm ±2nm
-G965B ±3nm
-G675A 1450nm ±2nm
-G675B ±3nm
-G390A 1470nm ±2nm In production
-G390B ±3nm
-G120A 1490nm ±2nm
-G120B ±3nm
-F850A 1510nm ±2nm
-F850B ±3nm
-F590A 1530nm ±2nm
-F590B ±3nm
-F340A 1550nm ±2nm
-F340B ±3nm
-F095A 1570nm ±2nm
-F095B ±3nm
-E855A 1590nm ±2nm
-E855B ±3nm
-E620A 1610nm ±2nm
-E620B ±3nm
Sumitomo Electric Industries, Ltd.
Part No.: SLT2420-xN-xnnnx Series
Document No.: HUW9924209-01E
Data of issue: December 04, 2002
Page 5 of 8
6. 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) Please pay special attention to the atmosphere condition because the dew on the module may
cause some electrical damages.
(4) Under such a strong vibration environment as in automobile, the performance and reliability are
not guaranteed.
Sumitomo Electric Industries, Ltd.
Part No.: SLT2420-xN-xnnnx Series
Document No.: HUW9924209-01E
Data of issue: December 04, 2002
Page 6 of 8
Code Wavelength
range
A±2nm
B±3nm
Code Fiber-sleeve type Code Pin assignment Pin length (L1)
CSC 0 Type A 13.5±0.5
6 Type C 13.5±0.5
Pin No. Pin function
for typeA
1LD anode (CASE)
2LD cathode
3 PD cathode
4PD anode
Pin No. Pin function
for typeC
1 (CASE)
2 LD cathode
3 PD anode
4 LD anode/PD cathode
P.C.D φ2.0±0.15
φ4.15
Appendix
Part No.: SLT242 - N/ -
Pin assignment and pin length
(Customize code)
Fiber-sleeve type
1
2
3
4
TypeA
φ2.5
Unit: mm
Tolerance: ±0.1mm
,
unless otherwise noted.
SC fiber-sleeve
1
2
3
4
TypeC
0.8
φ5.7
φ5.5
0.4
ORP
6.3
φ4.7
4-φ0.45±0.03
(13.5)
5.5
0.8
3.3
6.0
φ5.6
1.2
1.3
3.55
φ7.6
L1(See the table.)
Channel Wavelength
@25deg.
-K605 1270nm
-K240 1290nm
-J885 1310nm
-J540 1330nm
-J205 1350nm
-H885 1370nm
-H570 1390nm
-H260 1410nm
-G965 1430nm
-G675 1450nm
-G390 1470nm
-G120 1490nm
-F850 1510nm
-F590 1530nm
-F340 1550nm
-F095 1570nm
-E855 1590nm
-E620 1610nm
Sumitomo Electric Industries, Ltd.
Part No.: SLT2420-xN-xnnnx Series
Document No.: HUW9924209-01E
Data of issue: December 04, 2002
Page 7 of 8
7. 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 Dept.)
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.: SLT2420-xN-xnnnx Series
Document No.: HUW9924209-01E
Data of issue: December 04, 2002
Page 8 of 8
Revision Record
Document No. Date of issue Description Incorporated by Checked by Approved by
HUW9924209-01A Feb./25/00 Preliminary issue. T. Fujitani M. Yoshimura T. Fujitani
HUW9924209-01B Mar./03/00
“-xnnnx” code of λp5 has been
changed to E855A and E855B. M. Yoshimura T. Fujitani T. Fujitani
HUW9924209-01C Nov./07/00 Corrected Tstg from -40~90°C to
-40~+85°C;
Corrected Ith on condition of
Tc=+25°C from max.: 18mA to
max.: 20mA;
Corrected Ith on condition of
Tc=0~+70°C from max.: 40mA to
max.: 50mA;
Corrected Pf on condition of
Tc=+25°C from max.: 2.0mW to
min.: 3.0mW;
Added Se on condition of
Tc=+25°C;
Corrected ∆P f from min.: -1dB and
max.: 1dB to min.: -1.5dB and
max.: 1.5dB;
Added Er on condition of
Tc=0~+70°C;
Added C on condition of
Tc=+25°C;
Added the channel of G390 and
G120.
T. Nakanishi M. Yoshimura T. Fujitani
HUW9924209-01D Jan./18/01 Revised Id on condition of
Tc=0~+70°C from max.: 30nA to
max.: 100nA;
Corrected wavelength of F095x
channel from 1550nm to 1570nm
in the section of ordering
information.
T. Nakanishi M. Yoshimura M. Yoshimura
HUW9924209-01E Dec./04/02 Added channels of 1270n m,
1290nm, 1310nm, 1330nm,
1350nm, 1370nm, 1390nm,
1410nm, 1430nm and 1450nm;
Revised wavelength temperature
coeff. from mi n.: 0.08nm/°C to
min.: 0.07 nm/°C.
H. Koseki Y. Yamasaki M. Yoshimura
