Long-body 6P4C RJ11 plug for recessed telephone and modem jacks
SZ0DH64UC1B-F10 is an extended 6-position, 4-contact RJ11 modular plug. The nose is a standard 6P4C telephone face with four gold blades. The body is longer than a short crystal head so the contacts fully wipe a jack that sits behind a wall plate, a modem bezel, or a control-panel cut-out. Cord plants and panel OEMs specify the long housing when a short 6P4C bottoms on the bezel before the latch clicks. It is not an 8P8C network plug and not a 4P4C handset plug.
Buyers searching for a long-body RJ11 6P4C, an extended telephone crystal head, or a 6P4C plug for recessed jacks should order this model, not a short 6P4C from the standard RJ11 6P4C bin. For Ethernet see RJ45 8P8C plugs. For handset curly cords see RJ9 4P4C.
Why the body is long, and why the blade is 3-prong
A short 6P4C is built for a flush wall jack. Many ADSL modems, alarm communicators, elevator phones, and industrial HMI panels set the RJ11 behind a plastic lip. The extra length on this plug clears that lip so all four gold faces wipe and the latch locks. If a short plug rocks or drops out when the cover goes on, switch to this extended housing. Keep the short SKU for flush residential plates so purchasing does not mix lengths on one line.
The contact is a pure-copper 3-prong chip, gold on the mating face and nickel on the sides. Three prongs bite the conductor on three lines instead of a single spear, so contact area is larger and the wire is less likely to pull out of a 26–28 AWG flat cord. Gold resists oxidation; the nickel side plate slows wear and the black tarnish that shows up on cheap flash-gold blades after a damp warehouse summer. That stack is what the factory listing means by “高端传输” on a voice and DSL lead — it is not a Cat6 channel claim.
The housing is new eco-grade polycarbonate: crystal-clear, no flow marks in a good lot, tough enough for repeated crimp and latch cycles. Clarity is a QC tool. Operators see the four conductors in the unused 6P cavities before the die closes. The small clear chips in the photos are typical unused-position fillers or runner pieces from the 6P tool, not a second product.
6P4C face, long body, telephone duty
The interface is a registered jack RJ11 in the usual field sense: a six-position modular connector with four contacts loaded. Center two positions are tip/ring; the next pair is the second line, DSL, or alarm pair. Use a 6P crimp die. An 8P8C Ethernet tool will crush this nose. Unshielded, indoor, voice and low-speed data only. Typical class: about 1.5 A / 125 VAC signal, 750+ mating cycles, −10 °C to +60 °C.
Technical specifications — SZ0DH64UC1B-F10
| Item | Specification |
|---|---|
| Model | SZ0DH64UC1B-F10 |
| Product name | Telephone 6P4C long-body modular plug |
| Interface | 6P4C male (RJ11, 4 contacts loaded) |
| Body | Extended / long-body crystal head |
| Color | Transparent |
| Housing | Eco-friendly polycarbonate (PC) |
| Contact | Pure copper, 3-prong IDC |
| Plating | Gold on contact face; nickel on sides |
| Shielding | Unshielded |
| Termination | IDC crimp, 6P (RJ11/RJ12) die |
| Wire (typical) | 26–28 AWG flat 4-conductor telephone cable |
| Duty | POTS, ADSL/VDSL modem, fax, alarm, panel handset jack |
| Brand on factory card | Neutral / unbranded (private label available) |
| OEM / ODM | Gold thickness, 6P2C / 6P6C long-body, bag qty |
Send jack depth, cable type, and whether you need the short 6P4C or this long body to the engineering desk. We will return a sample of SZ0DH64UC1B-F10 and a crimp note.
How large buyers should write the PO
State: RJ11 6P4C long-body, model SZ0DH64UC1B-F10, 3-prong gold / nickel, clear PC. Do not write only “6P4C” or the line may ship short heads that will not latch in a recessed modem. Do not write RJ45.
Frequently asked questions
Long body versus standard 6P4C?
Same 6P4C nose and four gold contacts. This housing is longer for recessed jacks and panel bezels. Use the short plug on flush wall plates.
RJ11, RJ12, or RJ45?
This is 6P4C (RJ11 with four contacts). RJ12 is 6P6C. RJ45 is 8P8C Ethernet. They need different dies and jacks.
Why 3-prong gold with nickel sides?
Three prongs grip the copper. Gold on the face keeps resistance low. Nickel on the sides slows wear and tarnish. It is a telephone/DSL contact, not a Cat6 claim.
What tool and cable?
Flat 4-core 26–28 AWG station cable and a 6P modular crimp tool. An 8P Ethernet-only tool is the wrong cavity.
6P2C or 6P6C in the same long body?
Yes as sibling tools. Same extended PC, 2 or 6 gold blades. Name the load on the RFQ.
Private label?
Neutral as standard. Your part number on the inner bag and mixed cartons with telephone mRJ11 6P4C long body plug
odular plugs are available.
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