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Finisar FTCD8618E1PCM-VR 400GBASE-VR4 QSFP112 50 m OM4
400 Gb/s 400GBASE-VR4 QSFP112 transceiver, 850nm VCSEL x4, up to 50 m OM4, commercial temperature.
- Manufacturer
- Coherent Corp. (formerly Finisar / II-VI)
- Mfr part number
- FTCD8618E1PCM-VR
- Family
- FTCD8618
- Category
- Fiber optic transceiver modules
- Datasheet
- FTCD8618E1PCM-VR datasheet (PDF)
FTCD8618E1PCM-VR specifications
| Attribute | Value |
|---|---|
| Manufacturer | Coherent Corp. (Finisar) |
| Manufacturer part number | FTCD8618E1PCM-VR |
| Product family | FTCD8618 |
| Form factor | QSFP112 |
| Standards / application | IEEE 802.3db 400GBASE-SR4 (VR4 / VR2 for VR variants); IEEE 802.3ck 400GAUI-4; QSFP112 MSA |
| Data rate | 425 Gb/s (4x 106.25 Gb/s, 53.125 GBd PAM4) |
| Wavelength | 840–868 nm (Tx) |
| Laser | 4x100Gb/s 850nm VCSEL-based transmitter |
| Receiver | PIN |
| Reach | 60 m OM3 / 100 m OM4 (SR4); 30 m OM3 / 50 m OM4 (-VR) |
| Connector | Single MPO12 APC |
| Tx output power | −4.6 to 4 dBm per lane |
| Rx sensitivity | −6.4 + TECQ dBm OMAouter (SR4); −4.4 dBm / −6.2 + TECQ dBm (VR) |
| Rx overload / max input | 5 dBm damage threshold |
| Extinction ratio | 2.5 dB min |
| Supply voltage | 3.3 V (3.135–3.465 V) |
| Power dissipation | < 8 W |
| Operating temperature | Commercial |
| Diagnostics | I2C management interface per QSFP112 MSA |
| Compliance | RoHS-6 |
| Lifecycle | Current production |
| Variant note | 400GBASE-VR4, 50 m OM4 / 30 m OM3 (ftcd8618e1pcm-vr datasheet; Coherent page part FTCD8618E1PCMVR) |
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 FTCD8618E1PCM-VR
The Finisar FTCD8618E1PCM-VR (now a Coherent Corp. product, formerly II-VI) is a QSFP112 400GBASE-VR4 optical transceiver for 400 Gb/s links at 850nm VCSEL x4 over Parallel MMF, MPO12, with reach up to 50 m OM4. It is a commercial-temperature part. It belongs to Finisar's FTCD8618 family, which has 2 orderable variants that differ by temperature grade, latch, receiver build or wavelength channel. Typical uses: 400G data-centre spine, AI/ML clusters and 400ZR / ZR+ coherent DCI.
- Hot-pluggable QSFP112 form factor
- Supports 425Gb/s aggregate bit rate
- Power dissipation < 8W
- Single 3.3V power supply
- Maximum link length of 100m on OM4 MMF
- 4x100Gb/s 850nm VCSEL-based transmitter
FTCD8618E1PCM-VR: frequently asked questions
What is the Finisar FTCD8618E1PCM-VR?
The FTCD8618E1PCM-VR is a Finisar QSFP112 transceiver for 400GBASE-VR4 at 400 Gb/s. Finisar is now part of Coherent Corp. (formerly II-VI), and the part number is unchanged. It is used for 400G data-centre spine, AI/ML clusters and 400ZR / ZR+ coherent DCI.
What is the maximum distance of the FTCD8618E1PCM-VR?
The FTCD8618E1PCM-VR is specified for up to 50 m OM4 over Parallel MMF, MPO12. 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 FTCD8618E1PCM-VR?
Per the Finisar family datasheet, the FTCD8618E1PCM-VR transmits −4.6 to 4 dBm per lane and has a receiver sensitivity of −6.4 + TECQ dBm OMAouter (SR4); −4.4 dBm / −6.2 + TECQ dBm (VR). Maximum receiver input is 5 dBm damage threshold.
Does the FTCD8618E1PCM-VR support DDM / digital diagnostics?
Yes. I2C management interface per QSFP112 MSA. Your switch can read live temperature, voltage, laser bias and Tx/Rx power.
Which fiber and connector does the FTCD8618E1PCM-VR use?
The FTCD8618E1PCM-VR works at 850nm VCSEL x4 over Parallel MMF, MPO12. Both ends of a link must use the same optical standard.
Will the FTCD8618E1PCM-VR work in my Cisco, Juniper, Arista or HPE switch?
The FTCD8618E1PCM-VR follows the QSFP112 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.
FTCD8618E1PCM-VR vs FTCD8618E1PCM: what is the difference?
Both are in Finisar's FTCD8618 family. They differ in reach (50 m OM4 vs 60 m OM3 / 100 m OM4); build / application (400GBASE-VR4 vs 400GBASE-SR4). Pick the variant that matches your temperature, latch and wavelength needs.
What temperature range is the FTCD8618E1PCM-VR rated for?
The FTCD8618E1PCM-VR is a commercial-temperature part. Choose an industrial (T) variant for outdoor or uncontrolled sites.
What does the FTCD8618E1PCM-VR part number mean?
The FTCD prefix marks Finisar's 400G family. The C letter in the suffix usually marks the commercial temperature grade. The remaining characters identify the optical design and build variant.
Is your FTCD8618E1PCM-VR 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 FTCD8618E1PCM-VR price in India and how do I order?
The Finisar FTCD8618E1PCM-VR 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 FTCD8618E1PCM-VR need?
It runs from 3.3 V (3.135–3.465 V) with power dissipation of < 8 W.
Documents
NextGen datasheetPDF · specs, FAQ & buying guideManufacturer datasheet
Finisar / Coherent family datasheet
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