L869-1J1T-32 1000BASE-T Low-Profile RJ45 Magnetic Jack Single-Port
The L869-1J1T-32 is a low-profile, single-port RJ45 magjack designed for Gigabit Ethernet (1000BASE-T) applications. It features side-entry THT mounting, T-post PCB retention, selectable shield EMI tabs, green/yellow LEDs, gold-plated contact options (6µin / 15µin / 30µin), and integrated magnetics with 1CT:1 turns ratios. It supports AutomDX (Auto-MDIX) and includes the Bst circuit option to simplify board integration and link reliability.
Specifications of L869-1J1T-32 Low Profile RJ45 Connector
| Item | Specification |
|---|---|
| Part number | L869-1J1T-32 |
| Application | 1000BASE-T (Gigabit Ethernet) |
| Number of ports | 1 × 1 |
| Mounting / PCB angle | Side entry, THT solder |
| PCB retaining post | T POST |
| Latch | UP (tab up) |
| Contact plating | GOLD — 6µin / 15µin / 30µin |
| Cores per port | 4 |
| Diodes | No diodes |
| LED option | Green / Yellow |
| Shield EMI tabs | With or without |
| Pin type | THT solder |
| Configuration RX / TX | T, C |
| Turns ratio (RX / TX) | 1CT : 1 |
| Speed | 1000BASE-T |
| Temperature | Operating: 0 to 70 °C; Storage (listed): -40 to 85 °C. |
| RoHS | YES — RoHS-5 with lead in solder exemption |
| Special circuitry | AutomDX (Auto-MDIX): YES; Bst Circuit: YES. |
Key Features
L869-1J1T-32 1000BASE-T single-port low-profile RJ45 magjack with AutomDX, gold plating options (6/15/30µin), side-entry THT mount. Datasheet & ordering.
- Single port, 1000BASE-T (Gigabit) RJ45 magjack.
- Low-profile, side-entry PCB mount; THT solder pins.
- Integrated magnetics (Turns ratio RX/TX: 1CT:1).
- AutomDX (Auto-MDIX) compatible — removes need for crossover cables in many setups.
- Bst Circuit option (listed on datasheet for advanced circuitry).
- LED option: Green / Yellow status LEDs.
- Contact mating area plating options: Gold 6µin / 15µin / 30µin.
- Latch: Up (tab up) style; PCB retaining T-post.
- Shield EMI tabs: available with or without.
- RoHS-compliant: RoHS-5 with lead-in-solder exemption.
Bel Magnetic L869-1J1T-32 Benefits & Typical applications
L869-1J1T-32 Benefits
- Simplified integration: Integrated magnetics with standard 1CT:1 turns ratios reduces BOM and board area.
- Robust field behaviour: AutomDX (Auto-MDIX) support eases installation and reduces cable mistakes.
- Flexible finishes: Multiple gold plating thicknesses let you optimize cost vs. long-term reliability.
- LED status: Built-in green/yellow LEDs provide link/activity visibility for diagnostics and status panels.
Typical applications of Low-Profile RJ45 Jack
- Embedded network appliances and gateways
- Industrial Ethernet controllers and switches (non-PoE applications unless specified)
- Consumer or commercial networking equipment requiring low profile connectors
- Single-port network interface modules and custom PCB designs
FAQ About Low Profile Magjack
Q: What does AutomDX mean on this connector?
A: AutomDX is the part label used here for Auto-MDIX functionality — the jack and magnetics support automatic crossover detection allowing straight or crossover cables to be used without manual cabling changes.
Q: Is this magjack PoE capable?
A: The product data you provided does not list PoE support explicitly. If PoE is required, check the datasheet or confirm with the supplier which variants (if any) support PoE.
Q: What temperatures does it support?
A: Datasheet entries list 0 to 70 °C as the primary operating range and -40 to 85 °C as a storage/extended range in listings — confirm the intended use case and check the specific variant’s datasheet for guaranteed ratings.
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