| Item |
Specification |
| Product Name |
RJ9 4P4C Handset Modular Plug |
| Model |
DT-111 |
| Brand |
Detwiler Tech / OEM / ODM |
| Product Type |
Telephone Handset Modular Plug |
| Connector Type |
RJ9 4P4C |
| Shielding Type |
UTP (Unshielded Twisted Pair) |
| Wire Core Hole |
1.0mm |
| Supported Conductor Diameter |
0.75–1.0mm |
| Supported Cable Type |
Telephone Handset Cable |
| Contact Material |
Copper Alloy with Nickel Plating |
| Contact Plating |
1U Gold Plated |
| Housing Material |
PC (Polycarbonate) |
| Flame Rating |
UL94-V2 |
| Electrical Rating |
250V AC, Max 2A |
| Contact Resistance |
≤20mΩ |
| Insulation Resistance |
≥500MΩ (1000V DC / 1 min) |
| Dielectric Strength |
1000V DC / 1 min |
| Pull Test |
≥89N (20 lbs for 1 min) |
| Durability |
≥2000 mating cycles |
| Operating Temperature |
-40℃ ~ +125℃ |
| Certifications |
UL / CSA / CE / SGS / RoHS / ISO9001 |
| Packaging |
Box / Bag |
| HS Code |
8536901100 |
| OEM/ODM |
Supported |

| Option |
Available Choices |
| Gold Plating |
FU, 1U, 3U", 15U", 30U", 50U" |
| Packaging |
Box, Bag, OEM Custom Packaging |
| Logo Printing |
Detwiler Tech / OEM / ODM |
Product Description
Product Overview
The DT-111 RJ9 4P4C handset modular plug is specifically designed for telephone handset cords, desk phones, call center equipment, and communication devices. Featuring gold plated contacts and a durable PC housing, it ensures stable voice transmission and reliable connectivity.
Key Features
- RJ9 4P4C connector for telephone handset applications
- Designed for handset cords and communication devices
- 1U gold plated contacts for reliable signal transmission
- 1.0mm core hole for easy cable termination
- Supports 0.75–1.0mm conductor diameter
- Durable PC housing with UL94-V2 flame resistance
- High durability exceeding 2000 mating cycles
- Wide operating temperature range: -40℃ to +125℃
- Certified by UL, CSA, CE, SGS, RoHS, and ISO9001
Applications
- Telephone handset cords
- Office desk phones
- PBX systems
- Call center headsets and phones
- VoIP telephone equipment
- Communication and telecom devices
OEM & ODM Service
Detwiler Tech provides professional OEM/ODM manufacturing services, including custom logo printing, packaging design, and bulk production solutions for telecom distributors, communication equipment manufacturers, and system integrators worldwide.
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