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Finisar FTL410QD3C 40GBASE-SR4/10GBASE-SR QSFP+ 850nm 300m
40 Gb/s 40GBASE-SR4/10GBASE-SR extended reach (eSR4) Gen3 QSFP+ transceiver, 850nm, up to 300m.
- Manufacturer
- Coherent Corp. (formerly Finisar / II-VI)
- Mfr part number
- FTL410QD3C
- Family
- FTL410
- Category
- Fiber optic transceiver modules
- Datasheet
- FTL410QD3C datasheet (PDF)
FTL410QD3C specifications
| Attribute | Value |
|---|---|
| Manufacturer | Coherent Corp. (Finisar) |
| Manufacturer part number | FTL410QD3C |
| Product family | FTL410 |
| Form factor | QSFP+ |
| Standards / application | QSFP+ MSA; IEEE 802.3ba 40GBASE-SR4; 4x10GBASE-SR breakout |
| Data rate | 4 x 10.5 Gb/s max (1.06–10.5 Gb/s per lane); 42 Gb/s aggregate |
| Wavelength | 840–860 nm |
| Laser | 4x 850 nm VCSEL array |
| Receiver | PIN |
| Reach | QE: 100 m OM3 / 150 m OM4; QD (eSR4): 300 m OM3 / 400 m OM4 |
| Connector | MPO (1x12) |
| Tx output power | QE: −7.6 to −1.0 dBm per lane (OMA −5.6 to +3.0); QD: −7.5 to +0.5 dBm per lane (OMA −2.5 to +3.0) |
| Rx sensitivity | QE: −5.4 dBm stressed OMA per lane; QD: −11.1 dBm unstressed / −7.5 dBm stressed OMA |
| Rx overload / max input | +3.4 dBm damage threshold |
| Extinction ratio | ≥ 3.0 dB |
| Supply voltage | 3.3 V (3.15–3.45 V) |
| Power dissipation | QE2C/QD2C: 1.5 W max; QE3C: < 1.2 W; QE4C: < 1 W |
| Operating temperature | 0 to 70 °C case (C suffix); N parts: 0–85 °C (QE4N, QD4N) and −5–85 °C (QE2N) per Coherent brochure |
| Diagnostics | Digital diagnostics via I2C (incl. optical power monitoring) |
| Compliance | RoHS-6; Class 1 laser per IEC 60825-1 |
| Lifecycle | Ask for availability |
Optical and electrical values are from the Finisar / Coherent family datasheet; temperature grade is per part number. Confirm critical values with us before ordering.
About the Finisar FTL410QD3C
The Finisar FTL410QD3C (now a Coherent Corp. product, formerly II-VI) is a QSFP+ 40GBASE-SR4/10GBASE-SR extended reach (eSR4) Gen3 optical transceiver for 40 Gb/s links at 850nm over MMF parallel (MPO), with reach up to 300m. It belongs to Finisar's FTL410 family, which has 9 orderable variants that differ by temperature grade, latch, receiver build or wavelength channel. Typical uses: 40G Ethernet aggregation, spine links and 4 × 10G breakout.
- Four-channel full-duplex transceiver module
- Hot Pluggable QSFP+ form factor
- Reliable VCSEL array technology
- Multirate 1.06Gb/s to 10.5Gb/s per channel
- Built-in digital diagnostic functions
- Single 1x12 MPO receptacle
FTL410QD3C: frequently asked questions
What is the Finisar FTL410QD3C?
The FTL410QD3C is a Finisar QSFP+ transceiver for 40GBASE-SR4/10GBASE-SR extended reach (eSR4) Gen3 at 40 Gb/s. Finisar is now part of Coherent Corp. (formerly II-VI), and the part number is unchanged. It is used for 40G Ethernet aggregation, spine links and 4 × 10G breakout.
What is the maximum distance of the FTL410QD3C?
The FTL410QD3C is specified for up to 300m over MMF parallel (MPO). Long-reach optics may need an attenuator on short links; we can advise based on your link loss.
What is the optical power budget of the FTL410QD3C?
Per the Finisar family datasheet, the FTL410QD3C transmits QE: −7.6 to −1.0 dBm per lane (OMA −5.6 to +3.0); QD: −7.5 to +0.5 dBm per lane (OMA −2.5 to +3.0) and has a receiver sensitivity of QE: −5.4 dBm stressed OMA per lane; QD: −11.1 dBm unstressed / −7.5 dBm stressed OMA. Maximum receiver input is +3.4 dBm damage threshold.
Does the FTL410QD3C support DDM / digital diagnostics?
Yes. Digital diagnostics via I2C (incl. optical power monitoring). Your switch can read live temperature, voltage, laser bias and Tx/Rx power.
Which fiber and connector does the FTL410QD3C use?
The FTL410QD3C works at 850nm over MMF parallel (MPO). Both ends of a link must use the same optical standard.
Will the FTL410QD3C work in my Cisco, Juniper, Arista or HPE switch?
The FTL410QD3C follows the QSFP+ MSA, so it fits any matching port. It carries Finisar's own EEPROM programming; switches that check the module vendor may need a configuration setting or a vendor-branded optic. Send us your switch model and we confirm before dispatch.
FTL410QD3C vs FTL410QE2C: what is the difference?
Both are in Finisar's FTL410 family. They differ in reach (300m vs 150m (OM4)); build / application (40GBASE-SR4/10GBASE-SR extended reach (eSR4) Gen3 vs 40GBASE-SR4 Gen2 (4x10G breakout)). Pick the variant that matches your temperature, latch and wavelength needs.
What does the FTL410QD3C part number mean?
The FTL41 prefix marks Finisar's 40G QSFP+ family. The remaining characters identify the optical design and build variant.
Is your FTL410QD3C genuine Finisar?
Yes. Next Gen Networks supplies original Finisar / Coherent modules, not third-party lookalikes or grey-market stock, and shares serial numbers on request.
What is the FTL410QD3C price in India and how do I order?
The Finisar FTL410QD3C price in India depends on quantity, delivery city and current stock. Next Gen Networks supplies it with a GST invoice (input tax credit ready) and pan-India dispatch from New Delhi. Send the part number, quantity and delivery city on WhatsApp +91-7827955775 or email Sales@nextgennetworks.in for a GST quote.
What power does the FTL410QD3C need?
It runs from 3.3 V (3.15–3.45 V) with power dissipation of QE2C/QD2C: 1.5 W max; QE3C: < 1.2 W; QE4C: < 1 W.
Documents
NextGen datasheetPDF · specs, FAQ & buying guideManufacturer datasheet
Finisar / Coherent family datasheet
Related Finisar parts
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