Product comparison · 2 network transceiver modules

LevelOne 155Mbps Single-mode BIDI SFP Transceiver, 20km, TX 1550nm / RX 1310nm vs LevelOne 155Mbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm

30specifications compared
3differ
27identical
2known for one product only

Key differences

Maximum transfer distance
- 155Mbps Single-mode BIDI SFP Transceiver, 20km, TX 1550nm / RX 1310nm:20 m
- 155Mbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm:40000 m
Tx power (min)
- 155Mbps Single-mode BIDI SFP Transceiver, 20km, TX 1550nm / RX 1310nm:-14 dBmW
- 155Mbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm:-8 dBmW
Tx power (max)
- 155Mbps Single-mode BIDI SFP Transceiver, 20km, TX 1550nm / RX 1310nm:-8 dBmW
- 155Mbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm:-3 dBmW

Side by side

Differences highlightedShow differences only

Comparison of SFP-7331, SFP-7421
32 specifications	A LevelOne 155Mbps Single-mode BIDI SFP Transceiver, 20km, TX 1550nm / RX 1310nm Model SFP-7331 View product	B LevelOne 155Mbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm Model SFP-7421 View product
Performance3 differ
SFP transceiver type	Fiber optic	Fiber optic
Maximum data transfer rate	155 Mbit/s	155 Mbit/s
Interface type	SFP	SFP
Single-mode fiber (SMF) supported	Yes	Yes
Fiber optic connector	LC	LC
Fiber cable diameters supported (core/cladding)Known for one	9/125 µm	Unknown — not stated by the source
Maximum transfer distanceDiffers	20 m	40000 m
Tx power (min)Differs	-14 dBmW	-8 dBmW
Tx power (max)Differs	-8 dBmW	-3 dBmW
Networking standards	IEEE 802.3ah	IEEE 802.3ah
Fiber ports quantity	1	1
Auto MDI/MDI-XKnown for one	Unknown — not stated by the source	No
Featuresidentical
Hot-swap	Yes	Yes
Poweridentical
Input voltage	3.3 V	3.3 V
Maximum voltage	6 V	6 V
Maximum current	0.3 A	0.3 A
Certificatesidentical
Compliance certificates	RoHS	RoHS
Safety	EN 60825-1	EN 60825-1
Certification	CE, FCC	CE, FCC
Operational conditionsidentical
Operating temperature (T-T)	0 - 70 °C	0 - 70 °C
Storage temperature (T-T)	-40 - 85 °C	-40 - 85 °C
Operating relative humidity (H-H)	5 - 95%	5 - 95%
Weight & dimensionsidentical
Width	13.7 mm	13.7 mm
Depth	56.5 mm	56.5 mm
Height	8.95 mm	8.95 mm
Weight	20 g	20 g
Packaging contentidentical
Quantity per pack	1 pc(s)	1 pc(s)
Packaging dataidentical
Package width	75 mm	75 mm
Package depth	51 mm	51 mm
Package height	130 mm	130 mm
Package weight	60 g	60 g
Logistics dataidentical
Harmonized System (HS) code	85369010	85369010

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.