TRP Connector B.V. 6605728-2 RJ45 Modular Connector Equivalent & Substitute Parts

Part Overview

The TRP Connector B.V. 6605728-2 is a 1-port RJ45 through-hole modular connector designed for 10/100 Base-T and AutoMDIX applications. This MagJack® series connector features a 90° right-angle orientation with solder termination, shielded design with EMI finger protection, and board lock functionality. The part is currently obsolete, with 862 units available in new original stock. Due to its obsolete status, equivalent substitute parts from active product lines are necessary for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value
Connector Type	RJ45
Number of Ports	1
Applications	10/100 Base-T, AutoMDIX
Mounting Type	Through Hole
Orientation	90° Angle (Right)
Termination	Solder
Height Above Board	0.555" (14.10mm)
Number of Cores per Jack	6
Shielding	Shielded, EMI Finger
Features	Board Lock
Contact Material	Phosphor Bronze
Contact Finish	Gold
Operating Temperature	0°C ~ 70°C
Housing Material	Polyethylene Terephthalate (PET), Polyester
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 6605728-2 is determined by the following critical parameters:

Primary Compatibility Criteria:

Connector Type: RJ45
Number of Ports: 1
Mounting Type: Through Hole
Orientation: 90° Angle (Right)
Termination: Solder
Shielding: Shielded, EMI Finger

Secondary Compatibility Criteria:

Applications: 10/100 Base-T or 10/100 Base-TX
Contact Finish: Gold
RoHS Compliance: ROHS3 or equivalent

Allowable Variations:

Number of Cores per Jack: 4, 5, or 6 (functional compatibility maintained)
Height Above Board: ±0.016" (±0.41mm) tolerance acceptable
Housing Material: Thermoplastic or PET/Polyester
Tab Direction: Up or Down (mechanical orientation)
Features: Board Lock or Board Guide (both provide mechanical stability)
LED Color: Green-Yellow, Green-Green, or Yellow-Green combinations
Operating Temperature: 0°C ~ 70°C or extended range (-40°C ~ 85°C)

Substitute parts must maintain RJ45 connector integrity, through-hole solder termination, and shielded EMI design. Parts from TRP Connector B.V., Pulse Electronics, and Bel Fuse Inc. meeting these criteria are electrically and mechanically compatible.

Parameter Comparison

Part Number	Manufacturer	Connector Type	Ports	Mounting	Orientation	Cores	Height (mm)	Features	Operating Temp	Status
6605728-2	TRP Connector B.V.	RJ45	1	Through Hole	90° Right	6	14.10	Board Lock	0°C ~ 70°C	Obsolete
2250067-8	TRP Connector B.V.	RJ45	1	Through Hole	90° Right	4	13.69	Board Guide	0°C ~ 70°C	Active
6605704-1	TRP Connector B.V.	RJ45	1	Through Hole	90° Right	6	14.10	Board Lock	-40°C ~ 85°C	Active
JD1-0004NL	Pulse Electronics	RJ45	1	Through Hole	90° Right	4	13.80	Board Lock	0°C ~ 70°C	Active
SI-60001-F	Bel Fuse Inc.	RJ45	1	Through Hole	90° Right	4	—	Board Guide	—	Active
SI-60005-F	Bel Fuse Inc.	RJ45	1	Through Hole	90° Right	4	—	Board Guide	—	Active
SI-60015-F	Bel Fuse Inc.	RJ45	1	Through Hole	90° Right	5	—	Board Guide	—	Active
SI-60024-F	Bel Fuse Inc.	RJ45	1	Through Hole	90° Right	4	—	Board Guide	—	Active
SI-60062-F	Bel Fuse Inc.	RJ45	1	Through Hole	90° Right	4	13.84	Board Guide	—	Active
SI-60076-F	Bel Fuse Inc.	RJ45	1	Through Hole	90° Right	5	—	Board Lock	—	Active
SI-60110-F	Bel Fuse Inc.	RJ45	1	Through Hole	90° Right	4	—	Board Guide	0°C ~ 70°C	Active

Engineering Selection Recommendations

Primary Recommendation: TRP Connector B.V. 6605704-1

The 6605704-1 is the closest functional equivalent to the obsolete 6605728-2. Both parts share identical core specifications: RJ45 connector type, 1 port, through-hole solder termination, 90° right-angle orientation, 6 cores per jack, 14.10mm height above board, board lock feature, and gold-plated phosphor bronze contacts. The 6605704-1 is currently active with 769 units in stock and extends the operating temperature range to -40°C ~ 85°C, providing enhanced thermal performance. Both parts are ROHS3 compliant and carry identical ECCN and HTSUS classifications.

Secondary Recommendation: Pulse Electronics JD1-0004NL

The JD1-0004NL from the PULSEJACK™ JD1 series provides active product line support with 1,302 units in stock. This part maintains RJ45 connector type, 1 port, through-hole solder termination, 90° right-angle orientation, and board lock feature. The primary difference is 4 cores per jack versus the original 6 cores, which is functionally compatible for 10/100 Base-TX applications. Height above board is 13.80mm, within acceptable tolerance. Operating temperature range is 0°C ~ 70°C, matching the original specification. RoHS compliance is confirmed.

Tertiary Recommendation: Bel Fuse Inc. SI-60110-F

The SI-60110-F from the MagJack® ST SI-60000 series offers high inventory availability (1,002 units) and active product status. This part maintains RJ45 connector type, 1 port, through-hole solder termination, 90° right-angle orientation, and gold-plated copper alloy contacts. The 4-core configuration is functionally compatible. Operating temperature range is 0°C ~ 70°C. ROHS3 compliance is confirmed. The board guide feature provides mechanical stability equivalent to board lock functionality.

Alternative Options: Bel Fuse Inc. SI-60001-F, SI-60005-F, SI-60015-F, SI-60024-F, SI-60062-F, SI-60076-F

All Bel Fuse SI-60000 series parts are active with substantial inventory levels (816 to 21,818 units). These parts maintain core RJ45 specifications and through-hole solder termination. Core count variations (4 or 5 cores) are functionally compatible. ROHS3 compliance is confirmed for all variants. Selection among these options depends on specific LED color requirements, tab direction preference, and core count needs for the application.

Frequently Asked Questions (FAQ)

Q: Can the 6605704-1 directly replace the obsolete 6605728-2 without PCB redesign?

A: Yes. Both parts share identical mechanical and electrical specifications: RJ45 connector type, 1 port, through-hole solder termination, 90° right-angle orientation, 6 cores per jack, 14.10mm height above board, board lock feature, and gold-plated phosphor bronze contacts. No PCB layout modifications are required. The extended operating temperature range (-40°C ~ 85°C) of the 6605704-1 provides additional thermal margin.

Q: What is the functional difference between 6-core and 4-core RJ45 connectors?

A: The 6605728-2 features 6 cores per jack, while alternatives like the JD1-0004NL and SI-60110-F feature 4 cores per jack. Both configurations support 10/100 Base-T and 10/100 Base-TX applications. The 4-core design is electrically compatible and widely used in modern Ethernet implementations. Selection depends on application requirements and existing design specifications.

Q: Are Bel Fuse SI-60000 series parts compatible with the original 6605728-2?

A: Bel Fuse SI-60000 series parts (SI-60001-F, SI-60005-F, SI-60015-F, SI-60024-F, SI-60062-F, SI-60076-F, SI-60110-F) maintain RJ45 connector type, 1 port, through-hole solder termination, 90° right-angle orientation, and shielded EMI design. Core count variations (4 or 5 cores) are functionally compatible for 10/100 Base-T applications. The primary differences are tab direction (down versus up) and board guide versus board lock features. These are mechanical variations that do not affect electrical performance. ROHS3 compliance is confirmed for all variants.

Q: What is the difference between board lock and board guide features?

A: Both board lock and board guide features provide mechanical stability during PCB assembly and connector insertion. Board lock uses a locking mechanism to secure the connector to the PCB, while board guide uses a guide structure for alignment. Both approaches are functionally equivalent for preventing connector movement during operation. Selection depends on PCB design and assembly process preferences.

Q: Does operating temperature range affect substitution compatibility?

A: The original 6605728-2 operates from 0°C ~ 70°C. The 6605704-1 extends this to -40°C ~ 85°C, providing enhanced thermal performance without reducing compatibility. If the application requires the original temperature range only, all substitute parts rated for 0°C ~ 70°C or higher are acceptable. Extended temperature range parts provide additional design margin and are suitable for all applications within the original specification.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The original 6605728-2 and all listed substitute parts (6605704-1, 2250067-8, JD1-0004NL, SI-60001-F, SI-60005-F, SI-60015-F, SI-60024-F, SI-60062-F, SI-60076-F, SI-60110-F) are ROHS3 compliant or RoHS compliant. All parts meet current environmental and regulatory requirements.

Q: Can I mix substitute parts from different manufacturers in the same design?

A: Yes. All listed substitute parts maintain identical RJ45 connector specifications, through-hole solder termination, 90° right-angle orientation, and shielded EMI design. Parts from TRP Connector B.V., Pulse Electronics, and Bel Fuse Inc. are electrically and mechanically interchangeable within the specified parameter tolerances. However, for production consistency and supply chain management, using parts from a single manufacturer or product series is recommended.

Q: What inventory levels are available for each substitute part?

A: Current inventory levels are: 6605704-1 (769 units), 2250067-8 (1,067 units), JD1-0004NL (1,302 units), SI-60001-F (21,818 units), SI-60005-F (12,380 units), SI-60015-F (816 units), SI-60024-F (3,069 units), SI-60062-F (8,833 units), SI-60076-F (881 units), SI-60110-F (1,002 units). Bel Fuse SI-60000 series parts offer the highest inventory availability for long-term supply assurance.

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