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1000BASE-T Copper SFP Transceiver with 1.25Gbps Speed, 100m Range, and Low EMI

China 1000BASE-T Copper SFP Transceiver with 1.25Gbps Speed, 100m Range, and Low EMI

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1000BASE-T Copper SFP Transceiver with 1.25Gbps Speed, 100m Range, and Low EMI

MOQ： 1 Pices
Price： US$2.20 ~ US$597.02
Get Latest Price


Durability	≥1000 times
Connector Cable Od	0.9mm ,2.0mm, 3.0mm
Polishing Type	UPC, APC
Filler	Optical Silicone Grease
Wavelength	1310nm/1550nm,850nm,1490nm/1310nm,1310NM 1270NM
Supply voltage	1.9-3.6V,0~110,2.7 V ~ 5.5 V,Common
Installation Time	Within 60s ( No fiber cut )
Warranty	365days,3 Years,1 years
Source	FP,VCSEL / PIN
Payment Terms	L/C,D/A,D/P,T/T,Western Union,
Delivery Time	3-7working days
Connector Outer Diameter	3.0mm, 2.0mm, 0.9mm
Type	Voltage Regulator,Logic ICs,transceiver module,Single mode single fiber bi-directional transmission,Drive IC
Operating temperature	Standard,-40~85,-10°C ~ 70°C
Application	Telecommunication,Alarm,Computer,Video monitor system,1X fiber channel
Feature	waterproof
D/c	Newest,NEW,2013+,1234,RF Transceiver and Receiver Module
Product name	EPON OLT PX20+,433mhz uart Transceiver Module,1.25g bidi sfp optical module,SFP+ Transceiver,1.25G sfp module 1310/1550nm 10km sfp transceiver module
Skype	michella_fang,chaizhiquan91,Thomas65339
Fiber Diameter	125μm
Model No	fiber optic Connector
Wiring Devices	ODF
Dissipation power	0.1w,W
Color	customization
Fiber Mode	62.5/125µm OM1, 50/125µm OM2
Free Sample	Yes
Assembly Type	Mechanical
Condition	New,100% Original new
Interchangeability	≤0.2dB
Voltage	1.9~3.6V,Standard
Salt Spray	500h
Atorage Temperatuture	-40°C~85℃
Housing Color	Blue, Green, Beige
Repeatability	≤0.2dB
Endurance	500 cycles
Distance	20KM,300m,3KM
Packaging Details	spone + box + carton
Connector Return Loss	SMF: UPC≥50, APC≥60 ;MMF: ≥30
Transmission Medium	Single-Mode/ Mulit-Mode
Weight	2kg
Power supply	3.3V
Material	Plastic
Model Name	Fiber Optics Connector
Production Capacity	700000pieces/Month
Operating Temperature	-40°C to +85°C
Port	Fiber hub Box from NINGBO Port
Package	SMD,QFN-20,NRF24L01,poly bag,Fiber Optic
Shipping by	DHL\UPS\Fedex\EMS\HK Post
Data transfer rate	155M,10G
Connector Module	3.0mm
Certification	CE,ROHS,REACH,ISO9001,ISO14001
Brand Name	TAKFLY
Place of Origin	Guangdong, SHENZHEN
Model Number	TK-G3-RJ45

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Product Details
Company Details

Product Specification


Durability	≥1000 times	Connector Cable Od	0.9mm ,2.0mm, 3.0mm
Polishing Type	UPC, APC	Filler	Optical Silicone Grease
Wavelength	1310nm/1550nm,850nm,1490nm/1310nm,1310NM 1270NM	Supply voltage	1.9-3.6V,0~110,2.7 V ~ 5.5 V,Common
Installation Time	Within 60s ( No fiber cut )	Warranty	365days,3 Years,1 years
Source	FP,VCSEL / PIN	Payment Terms	L/C,D/A,D/P,T/T,Western Union,
Delivery Time	3-7working days	Connector Outer Diameter	3.0mm, 2.0mm, 0.9mm
Type	Voltage Regulator,Logic ICs,transceiver module,Single mode single fiber bi-directional transmission,Drive IC	Operating temperature	Standard,-40~85,-10°C ~ 70°C
Application	Telecommunication,Alarm,Computer,Video monitor system,1X fiber channel	Feature	waterproof
D/c	Newest,NEW,2013+,1234,RF Transceiver and Receiver Module	Product name	EPON OLT PX20+,433mhz uart Transceiver Module,1.25g bidi sfp optical module,SFP+ Transceiver,1.25G sfp module 1310/1550nm 10km sfp transceiver module
Skype	michella_fang,chaizhiquan91,Thomas65339	Fiber Diameter	125μm
Model No	fiber optic Connector	Wiring Devices	ODF
Dissipation power	0.1w,W	Color	customization
Fiber Mode	62.5/125µm OM1, 50/125µm OM2	Free Sample	Yes
Assembly Type	Mechanical	Condition	New,100% Original new
Interchangeability	≤0.2dB	Voltage	1.9~3.6V,Standard
Salt Spray	500h	Atorage Temperatuture	-40°C~85℃
Housing Color	Blue, Green, Beige	Repeatability	≤0.2dB
Endurance	500 cycles	Distance	20KM,300m,3KM
Packaging Details	spone + box + carton	Connector Return Loss	SMF: UPC≥50, APC≥60 ;MMF: ≥30
Transmission Medium	Single-Mode/ Mulit-Mode	Weight	2kg
Power supply	3.3V	Material	Plastic
Model Name	Fiber Optics Connector	Production Capacity	700000pieces/Month
Operating Temperature	-40°C to +85°C	Port	Fiber hub Box from NINGBO Port
Package	SMD,QFN-20,NRF24L01,poly bag,Fiber Optic	Shipping by	DHL\UPS\Fedex\EMS\HK Post
Data transfer rate	155M,10G	Connector Module	3.0mm
Certification	CE,ROHS,REACH,ISO9001,ISO14001	Brand Name	TAKFLY
Place of Origin	Guangdong, SHENZHEN	Model Number	TK-G3-RJ45

1000BASE-T Copper SFP – 1.25Gbps, 100m, Low EMI, Hot‑Pluggable

Product Overview

The TK-G1-RJ45 is a copper Small Form Pluggable (SFP) transceiver compliant with Gigabit Ethernet and 1000BASE‑T standards (IEEE 802.3‑2002 and IEEE 802.3ab). It supports 1000Mbps data rates over unshielded twisted‑pair Category 5 cable up to 100 meters.

The module uses 5‑level Pulse Amplitude Modulation (PAM) signals on all four pairs (250 Mbps per pair) for full‑duplex data links. It provides standard serial ID information per SFP MSA (accessible via 2‑wire serial bus at address A0h). The physical layer IC can also be accessed via the same bus at address ACh.

Key Features

Up to 1.25Gb/s bi‑directional data links
Hot‑pluggable SFP footprint
TX Disable and RX LOS (or without LOS) function
Fully metallic enclosure for low EMI
Low power dissipation: 1.05 W typical
Compact RJ‑45 connector assembly
Access to physical layer IC via 2‑wire serial bus
1000BASE‑T operation in host systems with SERDES interface
Operating case temperature: 0°C to +70°C (commercial) or -20°C to +85°C (extended)

Applications

1.25 Gigabit Ethernet over Cat 5 cable

Pin Definitions

Pin Diagram

Pin Descriptions

PIN	NAME	FUNCTION	SEQ.	NOTES
1	VeeT	Transmitter Ground	1	VeeT and VeeR are connected in SFP.
2	TX_FAULT	Transmitter Fault Indication	3	Not Implemented. Tied to VeeT in SFP.
3	TX_DISABLE	Transmitter Disable	3	See TX Disable.
4	MOD DEF (2)	Module Definition 2	3	Data line for serial ID and bidirectional data transfer bus.
5	MOD DEF (1)	Module Definition 1	3	Clock line for serial ID and bidirectional data transfer bus.
6	MOD DEF (0)	Module Definition 0	3	Tied to Vee in SFP.
7	RATE SELECT	Not Implemented	3	Not implemented. 33K pulldown to Vee in SFP.
8	LOS	Loss of Signal	3	See LOS option.
9	VeeR	Receiver Ground	1	VeeT and VeeR are connected in SFP.
10	VeeR	Receiver Ground	1	VeeT and VeeR are connected in SFP.
11	VeeR	Receiver Ground	1	VeeT and VeeR are connected in SFP.
12	RD-	Inverted Received Data out	3	AC coupled 100 ohm differential high speed data lines.
13	RD+	Non‑Inverted Received Data out	3	AC coupled 100 ohm differential high speed data lines.
14	VeeR	Receiver Ground	1	VeeT and VeeR are connected in SFP.
15	VccR	Receiver Power	2	VccR and VccT are connected in SFP.
16	VccT	Transmitter Power	2	VccR and VccT are connected in SFP.
17	VeeT	Transmitter Ground	1	VeeT and VeeR are connected in SFP.
18	TD+	Non‑inverted Data In	3	AC coupled 100 ohm differential high speed data lines.
19	TD-	Inverted Data In	3	AC coupled 100 ohm differential high speed data lines.
20	VeeT	Transmitter Ground	1	VeeT and VeeR are connected in SFP.

Notes:

Plug Seq.: Pin engagement sequence during hot‑plugging.
TX Fault is not supported and is always connected to ground.
TX Disable: Pin pulled up with 4.7kΩ. Low (0-0.8V): Transceiver on; High (2.0-3.465V) or open: Transceiver in reset.
Mod‑Def 0,1,2: Pulled up with 4.7k-10kΩ on host board. Mod‑Def 0 grounded by module to indicate presence. Mod‑Def 1 = clock, Mod‑Def 2 = data for serial ID.
RX_LOS: LVTTL compatible. Can be enabled/disabled (see ordering). When not used, tied to ground via 100Ω.
RD-/+: AC coupled 100Ω differential outputs, terminate with 100Ω at host SERDES.
TD-/+: AC coupled 100Ω differential inputs with 100Ω termination inside module.

Electrical Power Interface (+3.3V)

Parameter	Symbol	Min	Typ	Max	Units	Notes/Conditions
Supply Current	Is		320	375	mA	1.2W max over full range
Input Voltage	Vcc	3.13	3.3	3.47	V	Referenced to GND
Maximum Voltage	Vmax			4	V	Maximum

Low‑Speed Signals Electrical Characteristics

Parameter	Symbol	Min	Max	Units	Notes/Conditions
SFP Output LOW	VOL	0	0.5	V	4.7k-10k pull‑up to host_Vcc
SFP Output HIGH	VOH	host_Vcc‑0.5	host_Vcc+0.3	V	4.7k-10k pull‑up to host_Vcc
SFP Input LOW	VIL	0	0.8	V	4.7k-10k pull‑up to Vcc
SFP Input HIGH	VIH	2	Vcc+0.3	V	4.7k-10k pull‑up to Vcc

High‑Speed Electrical Interface (Transmission Line - SFP)

Parameter	Symbol	Typ	Units	Notes/Conditions
Line Frequency	fL	125	MHz	5‑level encoding per IEEE 802.3
Tx Output Impedance	Zout,TX	100	Ω	Differential, 1MHz-125MHz
Rx Input Impedance	Zin,RX	100	Ω	Differential, 1MHz-125MHz

High‑Speed Electrical Interface (Host - SFP)

Parameter	Symbol	Min	Typ	Max	Units	Notes/Conditions
Single ended data input swing	Vinswing	250		1200	mV	Single ended
Single ended data output swing	Voutswing	350		800	mV	Single ended
Rise/Fall Time (20%‑80%)	Tr,Tf			175	psec
Tx Input Impedance (single ended)	Zin		50		Ω
Rx Output Impedance (single ended)	Zout		50		Ω

General Specifications

Parameter	Symbol	Min	Max	Unit
Operating Case Temperature (Commercial)	Tc	0	70	°C
Operating Case Temperature (Extended)	Tc	-20	85	°C
Storage Temperature		-40	85	°C

Mechanical Specifications

The host‑side of the TK-G1-RJ45 conforms to SFP MSA mechanical specifications. The front portion is larger to accommodate the RJ‑45 connector.

References

Small Form Factor Pluggable (SFP) Transceiver Multi‑Source Agreement (MSA), September 2000
IEEE802.3 - 2002
"AT24C01A/02/04/08/16 2‑Wire Serial CMOS E2PROM", Atmel Corporation

Regulatory Compliance

Feature	Reference	Performance
Electrostatic discharge (ESD)	IEC/EN 61000‑4‑2	Compatible with standards
Electromagnetic Interference (EMI)	FCC Part 15 Class B, EN 55022 Class B (CISPR 22A)	Compatible with standards
Laser Eye Safety	FDA 21CFR 1040.10, 1040.11; IEC/EN 60825‑1,2	Class 1 laser product
Component Recognition	IEC/EN 60950, UL	Compatible with standards
RoHS	2002/95/EC	Compatible with standards
EMC	EN61000‑3	Compatible with standards

Frequently Asked Questions

Q: Are you a manufacturer?

A: Yes, we are a manufacturer, FTTH solution and data center total solution provider in Shenzhen, China, established in 2000.

Q: What's your MOQ?

A: MOQ can be 1 pcs, but the price is not competitive. More quantity, the price will be more competitive. We can quote price with freight and lead time for you, after you let us know detailed requirements with quantity. We have competitive shipping forwarders. For more solutions, you can feel free to contact us.

Q: How is your quality?

A: Our production is according to IEC, Europe standard. CE, ISO, RoHS, CPR, and ANATEL certified. All the products are 100% test before delivery.

Q: What's your lead time?

A: It depends on the quantity and products. For fiber optic patch cord, the lead time can be 2-3 working days within 5000 pcs. We keep the regular products in stock. Also, we can deal with urgent orders.

Q: What's your warranty?

A: Depends on different product, we have 1 years warranty for patch cord since delivery, but only responsible for non-artificial damage. For artificial damage, we can repair it for you for free, freight will be paid by your side.

Q: What's your packing?

A: International export standard package. If you need to print your logo on the packing, please let us know before we quote.

Q: Can you offer OEM/ODM?

A: Yes, we can. All products accept OEM/ODM. We can sign the Confidentiality Agreement.

Q: Can I have a sample?

A: It depends on which products, Free sample provide under 10 USD. Freight will be paid by buyer before delivery.

Q: How can I order?

Send mail or inquiries with product name, specification, and quantity to us. Provide your receive address if you need FOB, CIF, CFR price.
We will offer our quotation with lead time.
After the quotation confirmed, we will send a PI with our bank account.
Production will be arranged after the payment received.
Confirm the consignee with you before we deliver it.
The tracking number will be provided after the delivery.

Q: What is your payment term?

A: T/T, Western Union, Paypal, at once. For big amounts, can be 50% deposit in advance, 50% balance paid before delivery. With the same quality standard, if you could get better price from the market, TAKFLY also could support you same price. 3 years work experience in optical fiber industry, It's honored to be your professional product assistant.

Company Details

Bronze Gleitlager

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Business Type:

Manufacturer 
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Year Established:

2000 
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Total Annual:

3500000-4000000
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Employee Number:

200~300 
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Ecer Certification：

Verified Supplier 

Established in 2000, Takfly Communication Co., Ltd. is a National High-tech Enterprise integrating R&D, production and sales. As a leading provider of optical connectivity equipment, Takfly has more than 22 years of design and manufacturing experience, and its business has expanded to more than ... Established in 2000, Takfly Communication Co., Ltd. is a National High-tech Enterprise integrating R&D, production and sales. As a leading provider of optical connectivity equipment, Takfly has more than 22 years of design and manufacturing experience, and its business has expanded to more than ...

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TAKFLY COMMUNICATIONS CO., LTD.
Takfly Industrial Park, Tongsheng Community,Dalang Street, Longhua District,Shenzhen,518109,China
https://www.takflyfiber.com/

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