RJ45-8L-B Equivalent & Substitute Parts

Part Overview

The RJ45-8L-B is a modular jack connector manufactured by TE Connectivity Corcom Filters, designed for 8p8c (RJ45, Ethernet) applications with 90° right-angle orientation and through-hole solder termination. This connector features an unshielded design with board guide, filter, and panel stop functionality. The product is classified as obsolete, necessitating identification of active equivalent and substitute components for ongoing design and procurement requirements.

Substiute Parts

RJ45-8L-B

TE Connectivity Corcom FiltersIn Stock: 794RJ45-8L-B Datasheet

Current PartRFQ

0432028917

MolexIn Stock: 11940432028917 Datasheet

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0432028919

MolexIn Stock: 31270432028919 Datasheet

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A-2004-2-1

Assmann WSW ComponentsIn Stock: 923A-2004-2-1 Datasheet

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A-2004-2-2

Assmann WSW ComponentsIn Stock: 741A-2004-2-2 Datasheet

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A-2004-2-3

Assmann WSW ComponentsIn Stock: 806A-2004-2-3 Datasheet

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RJE021880120

Amphenol ICC (Commercial Products)In Stock: 799RJE021880120 Datasheet

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RJE021880320

Amphenol ICC (Commercial Products)In Stock: 918RJE021880320 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RJ45-8L-B is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria (Must Match):

• Connector Type: Jack
• Number of Positions/Contacts: 8p8c (RJ45, Ethernet)
• Orientation: 90° Angle (Right)
• Mounting Type: Through Hole
• Termination: Solder
• Tab Direction: Down

Secondary Compatibility Parameters (Preferred Match):

• Shielding: Unshielded (matches original design intent)
• Contact Material: Phosphor Bronze
• Contact Finish: Gold
• Housing Material: Polyester, Glass Filled or equivalent thermoplastic

Acceptable Variation:

• Contact Finish Thickness: Variations permitted (6.00µin to 50.0µin range)
• Product Status: Active preferred over obsolete
• Operating Temperature Range: -40°C ~ 85°C acceptable

Substitute parts are grouped into two categories: direct unshielded equivalents (Assmann WSW Components A-2004 series and Amphenol ICC RJE02 series) and shielded alternatives (Molex 043202 series) for applications requiring EMI protection.

Parameter Comparison

Engineering Selection Recommendations

Direct Unshielded Equivalents (Preferred for RJ45-8L-B Replacement):

The Assmann WSW Components A-2004 series (A-2004-2-1, A-2004-2-2, A-2004-2-3) provides the closest functional equivalence to the RJ45-8L-B. All three variants match the primary substitution criteria and feature identical housing material (Polyester, Glass Filled), contact material (Phosphor Bronze), and gold finish. These parts are active products with ROHS3 compliance and MSL 1 rating. Selection among the three variants is determined by contact finish thickness requirements: A-2004-2-1 (15.0µin), A-2004-2-2 (30.0µin), or A-2004-2-3 (50.0µin). The A-2004-2-3 variant matches the original 50.0µin specification exactly.

The Amphenol ICC RJE02 series (RJE021880120, RJE021880320) offers alternative unshielded equivalents with thermoplastic housing. Both variants meet all primary substitution criteria and provide active product status with RoHS compliance. Contact finish thickness differs: RJE021880120 (6.00µin) and RJE021880320 (30.0µin). These connectors feature board lock and panel stop functionality consistent with the original design.

Shielded Alternatives (For EMI-Sensitive Applications):

The Molex 043202 series (0432028917, 0432028919) provides shielded alternatives with EMI finger protection and Cat3 rating. Both variants maintain all primary substitution criteria with the exception of shielding configuration. These parts feature Polyamide (PA) nylon glass-filled housing, phosphor bronze contacts with 50.0µin gold finish, and active product status with ROHS3 compliance. The 0432028919 variant has higher inventory availability (3056 pcs) compared to 0432028917 (1134 pcs).

Compliance and Regulatory Considerations:

All substitute parts are REACH unaffected or compliant and carry EAR99 ECCN classification matching the original component. All active substitutes provide MSL 1 (Unlimited) moisture sensitivity rating and operating temperature range of -40°C to 85°C, exceeding the original specification. ROHS3 compliance is confirmed for all Assmann and Molex variants, with RoHS compliance for Amphenol ICC parts.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0432028917 or 0432028919 be used as direct replacements for the RJ45-8L-B?

A: The Molex 043202 series connectors are functionally compatible for 8p8c RJ45 Ethernet applications with identical orientation, mounting, and termination. The primary difference is shielding: Molex variants include EMI finger shielding and Cat3 rating, while the RJ45-8L-B is unshielded. Selection depends on application EMI requirements. If the original design specified unshielded operation, the Assmann WSW A-2004 series provides closer equivalence.

Q: What is the significance of contact finish thickness variation among substitute parts?

A: Contact finish thickness affects durability and wear resistance during mating cycles. The RJ45-8L-B specifies 50.0µin (1.27µm) gold finish. Assmann A-2004-2-3 and Molex 043202 series match this specification exactly. Amphenol RJE021880120 (6.00µin) and A-2004-2-1 (15.0µin) provide thinner finishes suitable for lower-cycle applications. A-2004-2-2 and RJE021880320 (30.0µin) offer intermediate durability. Selection should align with expected mating cycle requirements.

Q: Are all substitute parts suitable for through-hole PCB assembly?

A: Yes. All listed substitute parts are specified for through-hole mounting with solder termination, matching the RJ45-8L-B mounting configuration. Housing materials vary between Polyester glass-filled (Assmann, TE Connectivity) and Thermoplastic (Amphenol) or Polyamide nylon glass-filled (Molex), but all support standard through-hole soldering processes.

Q: What is the difference between the three Assmann A-2004 variants?

A: The A-2004-2-1, A-2004-2-2, and A-2004-2-3 variants are identical except for contact finish thickness: 15.0µin, 30.0µin, and 50.0µin respectively. All other electrical and mechanical parameters are identical. Selection is based on application durability requirements and mating cycle expectations. The A-2004-2-3 variant provides exact specification match to the RJ45-8L-B.

Q: Why is the RJ45-8L-B classified as obsolete?

A: The RJ45-8L-B is listed as obsolete by TE Connectivity, indicating discontinued manufacturing and limited future availability. Despite 761 pieces currently in stock, long-term procurement should transition to active alternatives. All listed substitute parts maintain active product status with established supply chains.

Q: Can unshielded and shielded RJ45 connectors be mixed in the same application?

A: Unshielded and shielded connectors are mechanically and electrically compatible for 8p8c RJ45 applications. However, mixing introduces inconsistent EMI protection. Applications requiring shielding should use shielded connectors throughout. Applications without EMI requirements should use unshielded variants for cost optimization.

Q: What is the MSL rating and why does it matter?

A: MSL (Moisture Sensitivity Level) 1 (Unlimited) indicates the component can be stored indefinitely without moisture control measures. All substitute parts carry MSL 1 rating, eliminating moisture-related handling constraints during assembly and storage.

Q: Are all substitute parts ROHS compliant?

A: Yes. Assmann WSW and Molex variants are ROHS3 compliant. Amphenol ICC parts are RoHS compliant. All meet current regulatory requirements for lead-free and restricted substance compliance.