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JBXFD2G18MSSDSMR Equivalent & Substitute Parts
Part Overview
The JBXFD2G18MSSDSMR is an 18-position circular connector plug with male pins and solder cup termination, manufactured by Souriau-Sunbank by Eaton. This connector is designed for industrial, instrumentation, medical, and telecommunications applications requiring shielded, free-hanging circular connections. The part is currently active in production with 971 units in stock.
Substitute parts are identified when equivalent connectors share the same functional specifications: 18-position configuration, male pin orientation, solder cup termination, push-pull fastening, shielded design, and compatible electrical ratings. Alternative models may be required due to supply constraints, lead time considerations, or specific application requirements.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Connector Type | Plug, Male Pins |
| Number of Positions | 18 |
| Termination Type | Solder Cup |
| Fastening Type | Push-Pull |
| Shielding | Shielded |
| Current Rating | 5.5A |
| Voltage Rating | 660V |
| Operating Temperature Range | -40°C ~ 125°C |
| Contact Finish | Gold |
| Shell Material | Brass |
| Insert Material | Polyetheretherketone (PEEK) |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitute parts for the JBXFD2G18MSSDSMR are identified based on strict equivalence in the following critical parameters:
Mandatory Matching Criteria:
- 18-position connector configuration
- Male pin connector type
- Solder cup termination method
- Push-pull fastening mechanism
- Shielded design
- Gold contact finish for mating surfaces
- Brass shell material
- PEEK insert material
- Current rating of 5.5A
- ROHS3 compliance
The FGG.2B.318.CLAD72Z manufactured by LEMO meets all mandatory substitution criteria. Both connectors are active products with ROHS3 compliance, unlimited moisture sensitivity level (MSL 1), and identical mechanical and electrical core specifications. Differences in shell finish (chrome over nickel versus chrome), contact finish thickness, and operating temperature range do not prevent functional substitution when application requirements are within the overlapping specifications.
Parameter Comparison
| Parameter | JBXFD2G18MSSDSMR (Souriau-Sunbank) | FGG.2B.318.CLAD72Z (LEMO) |
|---|---|---|
| Connector Type | Plug, Male Pins | Plug, Male Pins |
| Number of Positions | 18 | 18 |
| Termination | Solder Cup | Solder Cup |
| Fastening Type | Push-Pull | Push-Pull |
| Shielding | Shielded | Shielded |
| Current Rating (Amps) | 5.5A | 5.5A |
| Contact Finish - Mating | Gold | Gold |
| Shell Material | Brass | Brass |
| Shell Finish | Chrome over Nickel | Chrome |
| Insert Material | Polyetheretherketone (PEEK) | Polyetheretherketone (PEEK) |
| Ingress Protection | IP40 | IP50 - Dust Protected |
| Operating Temperature | -40°C ~ 125°C | -55°C ~ 250°C |
| Contact Finish Thickness - Mating | 19.7µin (0.50µm) | 39.4µin (1.00µm) |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
Both the JBXFD2G18MSSDSMR and FGG.2B.318.CLAD72Z are active products with ROHS3 compliance and identical moisture sensitivity ratings. Selection between these parts should be based on application-specific requirements:
JBXFD2G18MSSDSMR (Souriau-Sunbank by Eaton) is appropriate for applications operating within -40°C to 125°C with IP40 ingress protection requirements and 660V voltage specifications.
FGG.2B.318.CLAD72Z (LEMO) is appropriate for applications requiring extended operating temperature range (-55°C to 250°C) or enhanced ingress protection (IP50). The thicker gold contact finish (1.00µm versus 0.50µm) provides increased wear resistance in high-cycle mating applications.
Both connectors maintain identical current ratings (5.5A), core mechanical specifications, and regulatory compliance. Substitution is valid when application operating conditions fall within the overlapping parameter ranges of both parts.
Frequently Asked Questions (FAQ)
Q: Can FGG.2B.318.CLAD72Z replace JBXFD2G18MSSDSMR in all applications?
A: Substitution is valid when the application operates within the overlapping specifications: temperature range -40°C to 125°C, voltage requirements at or below 660V, and ingress protection requirements at or below IP50. The FGG.2B.318.CLAD72Z supports extended temperature operation and enhanced dust protection, making it suitable for more demanding environments.
Q: What is the difference in contact finish thickness between these connectors?
A: The JBXFD2G18MSSDSMR has 19.7µin (0.50µm) gold contact finish thickness, while the FGG.2B.318.CLAD72Z has 39.4µin (1.00µm). Thicker gold plating extends contact life in high-cycle mating applications and provides improved corrosion resistance.
Q: Are both connectors RoHS compliant?
A: Yes, both JBXFD2G18MSSDSMR and FGG.2B.318.CLAD72Z are ROHS3 compliant with unlimited moisture sensitivity level (MSL 1), suitable for unrestricted storage and handling.
Q: What is the difference in shell finish between these parts?
A: The JBXFD2G18MSSDSMR features chrome over nickel plating, while the FGG.2B.318.CLAD72Z features chrome plating. Both finishes provide corrosion protection; the nickel underplate in the Souriau-Sunbank connector offers additional corrosion barrier properties.
Q: Do both connectors support the same current and voltage ratings?
A: Both connectors support 5.5A current rating. The JBXFD2G18MSSDSMR is rated for 660V, while the FGG.2B.318.CLAD72Z voltage rating is not specified in available documentation. Verify voltage requirements against application specifications before substitution.
Q: What is the difference in ingress protection ratings?
A: The JBXFD2G18MSSDSMR provides IP40 protection (splash protection), while the FGG.2B.318.CLAD72Z provides IP50 protection (dust protected). IP50 offers enhanced environmental sealing suitable for dusty or harsh industrial environments.
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