JBXFD2G08MSSDSMR Equivalent & Substitute Parts

Part Overview

The JBXFD2G08MSSDSMR is an 8-position circular connector plug manufactured by Souriau-Sunbank by Eaton. This male pin connector features solder cup termination, push-pull fastening, and shielded construction rated for 10A at 830V. The connector is designed for industrial, instrumentation, medical, and telecommunications applications with an operating temperature range of -40°C to 125°C.

The product maintains Active status with 804 units in current inventory. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical compatibility, and termination methods. Substitute connectors from LEMO's 2B series provide functionally equivalent alternatives with extended operating temperature ranges and different cable opening specifications.

Key Parameters

Parameter	JBXFD2G08MSSDSMR
Connector Type	Plug, Male Pins
Number of Positions	8
Termination	Solder Cup
Fastening Type	Push-Pull
Shielding	Shielded
Current Rating	10A
Voltage Rating	830V
Contact Finish	Gold
Shell Material	Brass
Insert Material	Polyetheretherketone (PEEK)
Operating Temperature	-40°C ~ 125°C
Ingress Protection	IP40
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts are qualified based on the following critical parameters that determine functional equivalence:

Matching Criteria:

Connector type: Plug with male pins
Number of positions: 8
Termination method: Solder cup
Fastening mechanism: Push-pull
Shielding: Shielded construction
Current rating: 10A minimum
Contact finish: Gold plating
Shell material: Brass
Insert material: PEEK
Compliance: ROHS3 and REACH Unaffected status

Substitute Part Series: All four substitute parts are from LEMO's 2B series (FGG.2B.308.CLAZ, FGG.2B.308.CLAD52, FGG.2B.308.CLAD62, FGG.2B.308.CLAD72). These connectors meet all core electrical and mechanical requirements. The primary differentiation among LEMO substitutes is cable opening specification, which accommodates different cable jacket diameters while maintaining identical connector interface characteristics.

Parameter Comparison

Parameter	JBXFD2G08MSSDSMR (Souriau-Sunbank)	FGG.2B.308.CLAZ (LEMO)	FGG.2B.308.CLAD52 (LEMO)	FGG.2B.308.CLAD62 (LEMO)	FGG.2B.308.CLAD72 (LEMO)
Connector Type	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins
Number of Positions	8	8	8	8	8
Termination	Solder Cup	Solder Cup	Solder Cup	Solder Cup	Solder Cup
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Shielding	Shielded	Shielded	Shielded	Shielded	Shielded
Current Rating (Amps)	10A	10A	10A	10A	10A
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold
Shell Material	Brass	Brass	Brass	Brass	Brass
Shell Finish	Chrome over Nickel	Chrome	Chrome	Chrome	Chrome
Insert Material	Polyetheretherketone (PEEK)	Polyetheretherketone (PEEK)	Polyetheretherketone (PEEK)	Polyetheretherketone (PEEK)	Polyetheretherketone (PEEK)
Operating Temperature	-40°C ~ 125°C	-55°C ~ 250°C	-55°C ~ 250°C	-55°C ~ 250°C	-55°C ~ 250°C
Ingress Protection	IP40	IP50 - Dust Protected	IP50 - Dust Protected	IP50 - Dust Protected	IP50 - Dust Protected
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
Cable Opening	Not specified	Not specified	0.165" ~ 0.205" (4.20mm ~ 5.20mm)	0.205" ~ 0.244" (5.20mm ~ 6.20mm)	0.244" ~ 0.283" (6.20mm ~ 7.20mm)
Contact Finish Thickness - Mating	19.7µin (0.50µm)	39.4µin (1.00µm)	39.4µin (1.00µm)	39.4µin (1.00µm)	39.4µin (1.00µm)

Engineering Selection Recommendations

Primary Selection Criteria:

The JBXFD2G08MSSDSMR and all four LEMO 2B series substitutes share identical core electrical and mechanical specifications: 8-position male pin plug connectors with solder cup termination, 10A current rating, push-pull fastening, shielded construction, and PEEK inserts. All parts maintain Active product status with ROHS3 compliance and REACH Unaffected designation.

Voltage Rating Consideration:

The JBXFD2G08MSSDSMR specifies 830V rating. LEMO substitute parts do not provide voltage rating specifications in available documentation. Selection of LEMO substitutes requires confirmation that 830V rating is not a critical application requirement.

Temperature Operating Range:

LEMO substitutes operate across -55°C to 250°C, exceeding the JBXFD2G08MSSDSMR range of -40°C to 125°C. For applications within the original -40°C to 125°C window, both part families are functionally equivalent. For extended temperature applications, LEMO substitutes provide additional thermal margin.

Ingress Protection:

LEMO substitutes provide IP50 dust protection compared to IP40 on the original part. This represents an enhancement for applications requiring greater environmental sealing.

Cable Opening Selection:

LEMO substitutes are differentiated by cable opening specifications. Selection between FGG.2B.308.CLAD52, FGG.2B.308.CLAD62, and FGG.2B.308.CLAD72 is determined by cable jacket diameter. FGG.2B.308.CLAZ does not specify cable opening and serves as a general-purpose alternative.

Contact Finish Thickness:

LEMO substitutes provide 39.4µin (1.00µm) gold plating compared to 19.7µin (0.50µm) on the original part. The increased plating thickness on LEMO parts provides enhanced contact durability and wear resistance.

Frequently Asked Questions (FAQ)

Q: Are LEMO 2B series connectors mechanically compatible with the JBXFD2G08MSSDSMR?

A: Yes. Both connector families feature identical 8-position male pin plug configuration with push-pull fastening and solder cup termination. The mating interface is compatible.

Q: What is the primary difference between the four LEMO substitute part numbers?

A: The four LEMO substitutes differ in cable opening specification. FGG.2B.308.CLAD52 accommodates 4.20mm to 5.20mm cable diameters, FGG.2B.308.CLAD62 accommodates 5.20mm to 6.20mm, and FGG.2B.308.CLAD72 accommodates 6.20mm to 7.20mm. FGG.2B.308.CLAZ does not specify cable opening. Selection is based on the cable jacket diameter of the application.

Q: Can LEMO substitutes be used in applications requiring 830V rating?

A: LEMO substitute parts do not provide voltage rating specifications. Applications with 830V requirements must confirm LEMO part suitability through the manufacturer before substitution.

Q: What is the difference in shell finish between the original part and LEMO substitutes?

A: The JBXFD2G08MSSDSMR features chrome over nickel plating. LEMO substitutes feature chrome plating. Both finishes provide corrosion resistance and are suitable for industrial applications.

Q: Do all parts meet RoHS and REACH compliance requirements?

A: Yes. The JBXFD2G08MSSDSMR and all four LEMO substitutes are ROHS3 compliant and REACH Unaffected.

Q: What is the significance of the increased gold plating thickness on LEMO parts?

A: LEMO substitutes provide 39.4µin (1.00µm) gold contact finish compared to 19.7µin (0.50µm) on the original part. The increased thickness provides extended contact life and improved resistance to wear and corrosion in high-cycle mating applications.

Q: Are there inventory considerations for part selection?

A: Current inventory levels are: JBXFD2G08MSSDSMR (804 units), FGG.2B.308.CLAZ (993 units), FGG.2B.308.CLAD52 (1121 units), FGG.2B.308.CLAD62 (790 units), and FGG.2B.308.CLAD72 (762 units). All parts are available in bulk packaging.

Q: What is the operating temperature advantage of LEMO substitutes?

A: LEMO 2B series connectors operate from -55°C to 250°C compared to -40°C to 125°C for the JBXFD2G08MSSDSMR. For applications within the original temperature range, both are equivalent. For extended temperature environments, LEMO parts provide additional thermal capability.

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