SLT2420-CN - Sumitomo Electric Industries, Ltd.

Sumitomo Electric Industries, Ltd.

Part No.: SLT2420-xN Series

Document No.: HUW0024087-01E

Data of issue: January 28, 2008

Technical Specification

1.55µm MQW-DFB Laser Diode Module

(Transmitter Optical Sub-assembly)

SLT2420-xN Series

RoHS Compliant

Page 1 of 7

Sumitomo Electric Industries, Ltd.

Part No.: SLT2420-xN Series

Document No.: HUW0024087-01E

Data of issue: January 28, 2008

1. General

SLT2420-xN Series are 1.55µm In GaAsP/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 long reach of up to

2.5Gb/s transmission applications.

A laser diode is mounted into a φ5.6mm coaxial package integrated with an InGaAs monitor PD, a

single-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

Fiber Output Power Pf 5 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

Page 2 of 7

Sumitomo Electric Industries, Ltd.

Part No.: SLT2420-xN Series

Document No.: HUW0024087-01E

Data of issue: January 28, 2008

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 — — mW

Operating voltage Vf CW, Tc=0~+70°C — — 1.7 V

Slope efficiency Se CW 0.05 0.075 0.15 mW/mA

CW 1540 — 1565Peak wavelength λp CW, Tc=0~+70°C 1480 — 1580 nm

Spectral width Δλ CW, Tc=0~+70°C, 20dB down — — 1 nm

Side-mode suppression ratio SSR CW, Tc=0~+70°C 30 — — dB

Tracking error ΔPf 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 — 0.10 0.15 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) -1.0 — 1.0 dB

Note: *1. Measured with SEI’s master plug and an extra receptacle.

Page 3 of 7

Sumitomo Electric Industries, Ltd.

Part No.: SLT2420-xN Series

Document No.: HUW0024087-01E

Data of issue: January 28, 2008

5. Ordering information

Part number Pin assignment Number of pin Pin length

SLT2420-CN Type A 4 13.5±0.5mm

SLT2426-CN Type C 4 13.5±0.5mm

SLT2429-CN Type E 3 7.0±0.5mm

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.

7. 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”.

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Sumitomo Electric Industries, Ltd.

Part No.: SLT2420-xN Series

Document No.: HUW0024087-01E

Data of issue: January 28, 2008

Page 5 of 7

Code Fiber-sleeve type Code Pin a ssignment Pin length (L1) Pin No. Pin function Pin No. Pin f u nction

C SC 0 Type A 13.5 ±0.5 for t y peA for typeC

6 Type C 13.5±0.5 1LD anode (CASE) 1(CASE)

2LD cathode 2LD cathod e

3PD cathode 3PD anod e

4PD anode 4 LD anode/PD c a thode

P.C.D

φ2.0±0.15

φ4.15

Appendix

Part No.: SLT242 - N/





Pin assignment and pin length

(Customize code)

Fiber-sleeve type

TypeA

φ2.5

Unit: mm

Tolerance: ±0.1mm, unless otherwise noted.

SC fi ber-sleeve

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)

9TypeE 7.0±0.5

Pin No. P in function

for TypeE

LD anode/PD cathode

(CASE)

LD cathode

PD anode

TypeE

Code Fiber-sleeve type Code Pin a ssignment Pin length (L1) Pin No. Pin function Pin No. Pin f u nction

C SC 0 Type A 13.5 ±0.5 for t y peA for typeC

6 Type C 13.5±0.5 1LD anode (CASE) 1(CASE)

2LD cathode 2LD cathod e

3PD cathode 3PD anod e

4PD anode 4 LD anode/PD c a thode

Code Fiber-sleeve type Code Pin a ssignment Pin length (L1) Pin No. Pin function Pin No. Pin f u nction

C SC 0 Type A 13.5 ±0.5 for t y peA for typeC

6 Type C 13.5±0.5 1LD anode (CASE) 1(CASE)

2LD cathode 2LD cathod e

3PD cathode 3PD anod e

4PD anode 4 LD anode/PD c a thode

P.C.D

φ2.0±0.15

φ4.15

Appendix

Part No.: SLT242 - N/









Pin assignment and pin length

(Customize code)(Customize code)

Fiber-sleeve type

TypeA

φ2.5

Unit: mm

Tolerance: ±0.1mm, unless otherwise noted.

SC fi ber-sleeve

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)

9TypeE 7.0±0.5

Pin No. P in function

for TypeE

LD anode/PD cathode

(CASE)

LD cathode

PD anode

TypeE

Sumitomo Electric Industries, Ltd.

Part No.: SLT2420-xN Series

Document No.: HUW0024087-01E

Data of issue: January 28, 2008

8. 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

Page 6 of 7

Sumitomo Electric Industries, Ltd.

Part No.: SLT2420-xN Series

Document No.: HUW0024087-01E

Data of issue: January 28, 2008

Page 7 of 7

Revision Record

Document No. Date of issue Description Incorporated by Checked by Approved by

HUW0024087-01A Nov./01/00 Initial issue. T. Nakanishi M. Yoshimura T. Fujitani

HUW0024087-01B Jan./24/01 Revised Id on condition of

Tc=-0~+70°C from max.: 30nA to

max.: 100nA.

T. Nakanishi M. Yoshimura M. Yoshimura

HUW0024087-01C Sep./19/02 Add the absolute maximum

ratings of Pf;

Added the spec of Δλ;

Removed spring washer in

drawing.

Y. Yamasaki N. Kushida M. Yoshimura

HUW0024087-01D Nov./11/03 Added Type E pin assignment. M. Furumai Y. Yamasaki M. Yoshimura

HUW0024087-01E Jan./28/08 Added RoHS compliancy. K. Mii T. Takagi

M. Ito

T. Nakabayashi