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RJ45 Gigabit SFP Module – 1000BASE-T Copper SFP Transceiver with 1.25Gbps and

China RJ45 Gigabit SFP Module – 1000BASE-T Copper SFP Transceiver with 1.25Gbps and

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RJ45 Gigabit SFP Module – 1000BASE-T Copper SFP Transceiver with 1.25Gbps and

MOQ： 1 Pices
Price： US$2.21 ~ US$59.25/PC
Get Latest Price


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

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Product Details
Company Details

Product Specification


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

RJ45 Gigabit SFP Module – 1000BASE-T, 1.25Gbps, 100m over Cat 6, Low EMI

Product Overview

The TK-G1-RJ45 is a hot-pluggable copper SFP transceiver designed for Gigabit Ethernet applications. It conforms to IEEE 802.3-2002 and IEEE 802.3ab (1000BASE-T) standards. The module operates at 1000Mbps data rate over Category 5 unshielded twisted-pair cable with a maximum reach of 100 meters.

Signal transmission uses 5-level Pulse Amplitude Modulation (PAM) on all four wire pairs (250 Mbps per pair) for full-duplex links. The module includes serial ID functionality per SFP MSA, accessible via a 2-wire serial bus at address A0h. The physical layer IC can also be accessed at address ACh.

Key Features

Data rate up to 1.25Gb/s bidirectional
SFP MSA compliant, hot-pluggable
TX Disable and RX LOS (or no LOS)
Full metal housing for low electromagnetic interference
Typical power consumption: 1.05 W
Compact RJ-45 connector
2-wire serial bus access to physical IC
Supports 1000BASE-T on host systems with SERDES interface
Operating case temperature: 0℃ to +70℃ (commercial) or -20℃ to +85℃ (extended)

Applications

1.25 Gigabit Ethernet transmission over Cat 5 cable

Pin Assignment and Functions

Pin	Name	Function	Seq.	Notes
1	VeeT	Transmitter Ground	1	VeeT and VeeR are internally connected.
2	TX_FAULT	Transmitter Fault	3	Not implemented; tied to VeeT.
3	TX_DISABLE	Transmitter Disable	3	See TX Disable description.
4	MOD DEF (2)	Module Definition 2	3	Data line for serial ID bus.
5	MOD DEF (1)	Module Definition 1	3	Clock line for serial ID bus.
6	MOD DEF (0)	Module Definition 0	3	Tied to Vee in SFP.
7	RATE SELECT	Not used	3	Not implemented; 33k pulldown to Vee.
8	LOS	Loss of Signal	3	See LOS option.
9	VeeR	Receiver Ground	1	Connected to VeeT inside SFP.
10	VeeR	Receiver Ground	1	Same as above.
11	VeeR	Receiver Ground	1	Same as above.
12	RD-	Inverted RX Data	3	AC coupled, 100Ω differential.
13	RD+	Non-inverted RX Data	3	AC coupled, 100Ω differential.
14	VeeR	Receiver Ground	1	Connected to VeeT.
15	VccR	Receiver Power	2	Connected to VccT.
16	VccT	Transmitter Power	2	Connected to VccR.
17	VeeT	Transmitter Ground	1	Common ground.
18	TD+	Non-inverted TX Data	3	AC coupled, 100Ω differential input.
19	TD-	Inverted TX Data	3	AC coupled, 100Ω differential input.
20	VeeT	Transmitter Ground	1	Common ground.

Notes on Pin Functions

Plug Seq.: Pin engagement order during hot-plugging.
TX_FAULT: Permanently low (not supported).
TX_DISABLE: Internal 4.7kΩ pull-up. Low (0-0.8V) → transceiver on; High (2.0-3.465V) or open → reset.
Mod-Def 0/1/2: Host pulls up with 4.7k-10kΩ to Vcc. Mod-Def 0 = module present (grounded). Mod-Def 1 = clock, Mod-Def 2 = data.
RX_LOS: LVTTL output. Can be disabled (order option). If unused, tied to ground via 100Ω.
RD ± / TD±: AC coupled 100Ω differential lines. Host SERDES must terminate RD± with 100Ω; TD± have internal 100Ω termination.

Power Supply (+3.3V)

Parameter	Symbol	Min	Typ	Max	Unit	Condition
Supply Current	Is		320	375	mA	1.2W max over full Vcc & temp
Input Voltage	Vcc	3.13	3.3	3.47	V	Referenced to GND
Maximum Voltage	Vmax			4	V	Non-destructive

Low-Speed Interface (LVTTL)

Parameter	Symbol	Min	Max	Unit	Condition
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	Same pull-up
SFP Input LOW	VIL	0	0.8	V	4.7k-10k pull-up to Vcc
SFP Input HIGH	VIH	2	Vcc+0.3	V	Same pull-up

High-Speed Electrical Characteristics (SFP Side)

Parameter	Symbol	Typ	Unit	Notes
Line Frequency	fL	125	MHz	5-level encoding, IEEE 802.3
TX Output Impedance (diff)	Zout,TX	100	Ω	1-125 MHz
RX Input Impedance (diff)	Zin,RX	100	Ω	1-125 MHz

High-Speed Interface (Host Side)

Parameter	Symbol	Min	Typ	Max	Unit
Single-ended TX input swing	Vinswing	250		1200	mV
Single-ended RX output swing	Voutswing	350		800	mV
Rise/Fall time (20-80%)	Tr,Tf			175	ps
TX input impedance (SE)	Zin		50		Ω
RX output impedance (SE)	Zout		50		Ω

Temperature Ranges

Parameter	Min	Max	Unit
Operating (Commercial)	0	70	℃
Operating (Extended)	-20	85	℃
Storage	-40	85	℃

Mechanical Outline

The module's host-side mechanical dimensions follow SFP MSA specifications. The front portion (protruding outside the host panel) is enlarged to accommodate the RJ-45 jack.

Reference Documents

SFP Transceiver MSA, September 2000
IEEE 802.3-2002 (including 802.3ab)
Atmel AT24C01A/02/04/08/16 2-Wire Serial EEPROM datasheet

Regulatory Compliance

Feature	Standard	Result
ESD	IEC/EN 61000-4-2	Compliant
EMI	FCC Part 15 Class B, EN 55022 Class B	Compliant
Laser Safety	FDA 21CFR 1040.10, 1040.11; IEC/EN 60825-1,2	Class 1
Product Safety	IEC/EN 60950, UL	Compliant
RoHS	2002/95/EC	Compliant
EMC	EN61000-3	Compliant

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?

A: 1. Send mail or inquiries with product name, specification, and quantity to us. Provide your receive address if you need FOB, CIF, CFR price.
2. We will offer our quotation with lead time.
3. After the quotation confirmed, we will send a PI with our bank account.
4. Production will be arranged after the payment received.
5. Confirm the consignee with you before we deliver it.
6. 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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from Quality China Factory

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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 


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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