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1000BASE-T Copper SFP Transceiver with 1.25Gbps Speed, 100m Range, and Low EMI
1000BASE-T Copper SFP Transceiver with 1.25Gbps Speed, 100m Range, and Low EMI
1000BASE-T Copper SFP Transceiver with 1.25Gbps Speed, 100m Range, and Low EMI
1000BASE-T Copper SFP Transceiver with 1.25Gbps Speed, 100m Range, and Low EMI
1000BASE-T Copper SFP Transceiver with 1.25Gbps Speed, 100m Range, and Low EMI
1000BASE-T Copper SFP Transceiver with 1.25Gbps Speed, 100m Range, and Low EMI
1000BASE-T Copper SFP Transceiver with 1.25Gbps Speed, 100m Range, and Low EMI
1000BASE-T Copper SFP Transceiver with 1.25Gbps Speed, 100m Range, and Low EMI
1000BASE-T Copper SFP Transceiver with 1.25Gbps Speed, 100m Range, and Low EMI
1000BASE-T Copper SFP Transceiver with 1.25Gbps Speed, 100m Range, and Low EMI
1000BASE-T Copper SFP Transceiver with 1.25Gbps Speed, 100m Range, and Low EMI
1000BASE-T Copper SFP Transceiver with 1.25Gbps Speed, 100m Range, and Low EMI
Specifications
Durability :
≥1000 times
Connector Cable Od :
0.9mm ,2.0mm, 3.0mm
Certification :
CE,ROHS,REACH,ISO9001,ISO14001
Polishing Type :
UPC, APC
Brand Name :
TAKFLY
Filler :
Optical Silicone Grease
Wavelength :
1310nm/1550nm,850nm,1490nm/1310nm,1310NM 1270NM
Price :
US$2.20 ~ US$597.02
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
Place of Origin :
Guangdong, SHENZHEN
Wiring Devices :
ODF
Dissipation power :
0.1w,W
Color :
customization
Fiber Mode :
62.5/125µm OM1, 50/125µm OM2
Model Number :
TK-G3-RJ45
Free Sample :
Yes
Assembly Type :
Mechanical
Condition :
New,100% Original new
Interchangeability :
≤0.2dB
Voltage :
1.9~3.6V,Standard
MOQ :
1 Pices
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
Description
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
1000BASE-T Copper SFP Transceiver with 1.25Gbps Speed, 100m Range, and Low EMI
Pin Descriptions
PIN NAME FUNCTION SEQ. NOTES
1VeeTTransmitter Ground1VeeT and VeeR are connected in SFP.
2TX_FAULTTransmitter Fault Indication3Not Implemented. Tied to VeeT in SFP.
3TX_DISABLETransmitter Disable3See TX Disable.
4MOD DEF (2)Module Definition 23Data line for serial ID and bidirectional data transfer bus.
5MOD DEF (1)Module Definition 13Clock line for serial ID and bidirectional data transfer bus.
6MOD DEF (0)Module Definition 03Tied to Vee in SFP.
7RATE SELECTNot Implemented3Not implemented. 33K pulldown to Vee in SFP.
8LOSLoss of Signal3See LOS option.
9VeeRReceiver Ground1VeeT and VeeR are connected in SFP.
10VeeRReceiver Ground1VeeT and VeeR are connected in SFP.
11VeeRReceiver Ground1VeeT and VeeR are connected in SFP.
12RD-Inverted Received Data out3AC coupled 100 ohm differential high speed data lines.
13RD+Non‑Inverted Received Data out3AC coupled 100 ohm differential high speed data lines.
14VeeRReceiver Ground1VeeT and VeeR are connected in SFP.
15VccRReceiver Power2VccR and VccT are connected in SFP.
16VccTTransmitter Power2VccR and VccT are connected in SFP.
17VeeTTransmitter Ground1VeeT and VeeR are connected in SFP.
18TD+Non‑inverted Data In3AC coupled 100 ohm differential high speed data lines.
19TD-Inverted Data In3AC coupled 100 ohm differential high speed data lines.
20VeeTTransmitter Ground1VeeT 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 CurrentIs320375mA1.2W max over full range
Input VoltageVcc3.133.33.47VReferenced to GND
Maximum VoltageVmax4VMaximum
Low‑Speed Signals Electrical Characteristics
Parameter Symbol Min Max Units Notes/Conditions
SFP Output LOWVOL00.5V4.7k-10k pull‑up to host_Vcc
SFP Output HIGHVOHhost_Vcc‑0.5host_Vcc+0.3V4.7k-10k pull‑up to host_Vcc
SFP Input LOWVIL00.8V4.7k-10k pull‑up to Vcc
SFP Input HIGHVIH2Vcc+0.3V4.7k-10k pull‑up to Vcc
High‑Speed Electrical Interface (Transmission Line - SFP)
Parameter Symbol Min Typ Max Units Notes/Conditions
Line FrequencyfL125MHz5‑level encoding per IEEE 802.3
Tx Output ImpedanceZout,TX100ΩDifferential, 1MHz-125MHz
Rx Input ImpedanceZin,RX100ΩDifferential, 1MHz-125MHz
High‑Speed Electrical Interface (Host - SFP)
Parameter Symbol Min Typ Max Units Notes/Conditions
Single ended data input swingVinswing2501200mVSingle ended
Single ended data output swingVoutswing350800mVSingle ended
Rise/Fall Time (20%‑80%)Tr,Tf175psec
Tx Input Impedance (single ended)Zin50Ω
Rx Output Impedance (single ended)Zout50Ω
General Specifications
Parameter Symbol Min Typical Max Unit
Operating Case Temperature (Commercial)Tc070°C
Operating Case Temperature (Extended)Tc-2085°C
Storage Temperature-4085°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.

1000BASE-T Copper SFP Transceiver with 1.25Gbps Speed, 100m Range, and Low EMI
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 61000‑4‑2Compatible with standards
Electromagnetic Interference (EMI)FCC Part 15 Class B, EN 55022 Class B (CISPR 22A)Compatible with standards
Laser Eye SafetyFDA 21CFR 1040.10, 1040.11; IEC/EN 60825‑1,2Class 1 laser product
Component RecognitionIEC/EN 60950, ULCompatible with standards
RoHS2002/95/ECCompatible with standards
EMCEN61000‑3Compatible 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?
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.
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1000BASE-T Copper SFP Transceiver with 1.25Gbps Speed, 100m Range, and Low EMI

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Product Detail
Durability :
≥1000 times
Connector Cable Od :
0.9mm ,2.0mm, 3.0mm
Certification :
CE,ROHS,REACH,ISO9001,ISO14001
Polishing Type :
UPC, APC
Brand Name :
TAKFLY
Filler :
Optical Silicone Grease
Contact Supplier
1000BASE-T Copper SFP Transceiver with 1.25Gbps Speed, 100m Range, and Low EMI
1000BASE-T Copper SFP Transceiver with 1.25Gbps Speed, 100m Range, and Low EMI
1000BASE-T Copper SFP Transceiver with 1.25Gbps Speed, 100m Range, and Low EMI
1000BASE-T Copper SFP Transceiver with 1.25Gbps Speed, 100m Range, and Low EMI
1000BASE-T Copper SFP Transceiver with 1.25Gbps Speed, 100m Range, and Low EMI
1000BASE-T Copper SFP Transceiver with 1.25Gbps Speed, 100m Range, and Low EMI

TAKFLY COMMUNICATIONS CO., LTD.

Verified Supplier
6 Years
shenzhen
Since 2000
Business Type :
Manufacturer
Main Products :
MPO MTP, WDM Mux Demux, Fiber Optic PLC Splitter
Total Annual :
3500000-4000000
Employee Number :
200~300
Certification Level :
Verified Supplier
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