# Need replacement for FP-1310-4I-LCB / Finisar HFD3141-203

**URL:** <https://forum.digikey.com/t/need-replacement-for-fp-1310-4i-lcb-finisar-hfd3141-203/32053>\
**Category:** Optoelectronics\
**Tags:** electromechanical, laser-diodes-modules, cross-reference, optoelectronics\
**Created:** [June 19, 2023, 6:30pm UTC](https://forum.digikey.com/t/need-replacement-for-fp-1310-4i-lcb-finisar-hfd3141-203/32053 "2023-06-19T18:30:00Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![requihua](https://avatars.discourse-cdn.com/v4/letter/r/439d5e/32.png) [@requihua](https://forum.digikey.com/u/requihua)\
**Post date:** [June 19, 2023, 6:30pm UTC](https://forum.digikey.com/t/need-replacement-for-fp-1310-4i-lcb-finisar-hfd3141-203/32053/1 "2023-06-19T18:30:00Z")

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We have some boards that require the FP-1310-4I-LCB / HFD3141-203 from finisar. they are currently obsolete any help will be appreciated.  
thank you.

-Rodrigo Equihua.

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**Author:** ![David\_1768](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/david_1768/32/9762_2.png) [@David\_1768](https://forum.digikey.com/u/David_1768)\
**Post date:** [June 19, 2023, 7:02pm UTC](https://forum.digikey.com/t/need-replacement-for-fp-1310-4i-lcb-finisar-hfd3141-203/32053/2 "2023-06-19T19:02:57Z")

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Welcome to the DigiKey TechForum requihua,  
I searched our system, and we do not have any match for a Laser Diode Module, for 1310nm.  
Also, nothing found in the TO-46-4 package, in any wavelengths.

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**Author:** ![requihua](https://avatars.discourse-cdn.com/v4/letter/r/439d5e/32.png) [@requihua](https://forum.digikey.com/u/requihua)\
**Post date:** [June 19, 2023, 9:01pm UTC](https://forum.digikey.com/t/need-replacement-for-fp-1310-4i-lcb-finisar-hfd3141-203/32053/3 "2023-06-19T21:01:47Z")

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Thank you David.