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RFSMACJABA SMA Connector Jack Female Socket 50 Ohms Board Edge End Launch
Part Overview
The RFSMACJABA is an SMA connector jack manufactured by Bulgin, designed as a female socket with 50 ohms impedance for board edge end launch solder termination applications. This coaxial RF connector operates across frequencies up to 26.5 GHz and is classified as an active product with ROHS3 compliance. The component is essential for high-frequency RF circuit board interconnections requiring threaded fastening and reliable mating cycles. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical mounting characteristics, and environmental operating parameters to ensure direct functional interchangeability in circuit designs.
Substiute Parts
Key Parameters
| Parameter | RFSMACJABA Specification |
|---|---|
| Connector Style | SMA |
| Connector Type | Jack, Female Socket |
| Impedance | 50 Ohms |
| Mounting Type | Board Edge, End Launch |
| Contact Termination | Solder |
| Shield Termination | Solder |
| Fastening Type | Threaded |
| Frequency Maximum | 26.5 GHz |
| Number of Ports | 1 |
| Operating Temperature Range | -55°C to 155°C |
| Voltage Rating | 335 V |
| Mating Cycles | 500 |
| Body Material | Brass |
| Body Finish | Gold |
| Center Contact Material | Beryllium Copper |
| Dielectric Material | Polyetherimide (PEI) |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the RFSMACJABA are identified through strict parametric matching of core electrical and mechanical specifications. The primary substitution criteria are:
Critical Matching Parameters:
- Connector Style: SMA
- Connector Type: Jack, Female Socket
- Impedance: 50 Ohms
- Mounting Type: Board Edge, End Launch
- Contact Termination: Solder
- Shield Termination: Solder
- Fastening Type: Threaded
- Frequency Maximum: 26.5 GHz
- Number of Ports: 1
- Mating Cycles: 500
All identified substitute parts match these core parameters. Variations exist in dielectric material composition, center contact plating, operating temperature range, and voltage rating specifications. The RFSMACJABA uses Polyetherimide (PEI) dielectric material with an operating temperature range of -55°C to 155°C and 335 V voltage rating. Substitute parts from Cinch Connectivity Solutions employ Polytetrafluoroethylene (PTFE) dielectric material with extended operating temperature range of -65°C to 165°C but reduced voltage rating of 170 V. These material and specification differences do not affect functional interchangeability for standard 50 ohm SMA board edge end launch applications within the specified frequency and mating cycle parameters.
Parameter Comparison
| Parameter | RFSMACJABA (Bulgin) | RFSMACJAAA (Bulgin) | 142-0761-811 (Cinch) | 142-0761-841 (Cinch) | 142-0761-851 (Cinch) | 142-0761-861 (Cinch) | 142-0761-871 (Cinch) | 142-0761-891 (Cinch) | 142-0771-821 (Cinch) | 142-0771-831 (Cinch) | 142-0781-821 (Cinch) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Connector Style | SMA | SMA | SMA | SMA | SMA | SMA | SMA | SMA | SMA | SMA | SMA |
| Connector Type | Jack, Female Socket | Jack, Female Socket | Jack, Female Socket | Jack, Female Socket | Jack, Female Socket | Jack, Female Socket | Jack, Female Socket | Jack, Female Socket | Jack, Female Socket | Jack, Female Socket | Jack, Female Socket |
| Impedance | 50 Ohms | 50 Ohms | 50 Ohms | 50 Ohms | 50 Ohms | 50 Ohms | 50 Ohms | 50 Ohms | 50 Ohms | 50 Ohms | 50 Ohms |
| Mounting Type | Board Edge, End Launch | Board Edge, End Launch | Board Edge, End Launch | Board Edge, End Launch | Board Edge, End Launch | Board Edge, End Launch | Board Edge, End Launch | Board Edge, End Launch | Board Edge, End Launch | Board Edge, End Launch | Board Edge, End Launch |
| Contact Termination | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder |
| Shield Termination | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder |
| Fastening Type | Threaded | Threaded | Threaded | Threaded | Threaded | Threaded | Threaded | Threaded | Threaded | Threaded | Threaded |
| Frequency Maximum | 26.5 GHz | 26.5 GHz | 26.5 GHz | 26.5 GHz | 26.5 GHz | 26.5 GHz | 26.5 GHz | 26.5 GHz | 26.5 GHz | 26.5 GHz | 26.5 GHz |
| Number of Ports | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Mating Cycles | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 |
| Body Material | Brass | Brass | Brass | Brass | Brass | Brass | Brass | Brass | Brass | Brass | Brass |
| Body Finish | Gold | Gold | Gold | Gold | Gold | Gold | Gold | Gold | Gold | Gold | Gold |
| Center Contact Material | Beryllium Copper | Beryllium Copper | Beryllium Copper | Beryllium Copper | Beryllium Copper | Beryllium Copper | Beryllium Copper | Beryllium Copper | Beryllium Copper | Beryllium Copper | Beryllium Copper |
| Dielectric Material | Polyetherimide (PEI) | Polyetherimide (PEI) | Polytetrafluoroethylene (PTFE) | Polytetrafluoroethylene (PTFE) | Polytetrafluoroethylene (PTFE) | Polytetrafluoroethylene (PTFE) | Polytetrafluoroethylene (PTFE) | Polytetrafluoroethylene (PTFE) | Polytetrafluoroethylene (PTFE) | Polytetrafluoroethylene (PTFE) | Polytetrafluoroethylene (PTFE) |
| Operating Temperature Range | -55°C to 155°C | -55°C to 155°C | -65°C to 165°C | -65°C to 165°C | -65°C to 165°C | -65°C to 165°C | -65°C to 165°C | -65°C to 165°C | -65°C to 165°C | -65°C to 165°C | -65°C to 165°C |
| Voltage Rating | 335 V | 335 V | 170 V | 170 V | 170 V | 170 V | 170 V | 170 V | 170 V | 170 V | 170 V |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | RoHS Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | Not Applicable |
Engineering Selection Recommendations
Bulgin Equivalent (RFSMACJAAA): The RFSMACJAAA represents a direct parametric equivalent manufactured by Bulgin with identical electrical and mechanical specifications to the RFSMACJABA. Both parts share the same dielectric material (PEI), operating temperature range (-55°C to 155°C), and voltage rating (335 V). Selection of RFSMACJAAA is appropriate for applications requiring exact specification matching and Bulgin brand continuity. ROHS3 compliance and MSL 1 rating are maintained.
Cinch Connectivity Solutions Equivalents (142-0761 Series, 142-0771 Series, 142-0781 Series): The Cinch Connectivity Solutions parts (142-0761-811, 142-0761-841, 142-0761-851, 142-0761-861, 142-0761-871, 142-0761-891, 142-0771-821, 142-0771-831, 142-0781-821) are functionally equivalent for 50 ohm SMA board edge end launch applications. These parts employ PTFE dielectric material instead of PEI, resulting in extended operating temperature capability (-65°C to 165°C) but reduced voltage rating (170 V). Selection of Cinch parts is appropriate for applications operating within the 170 V voltage constraint and requiring extended temperature performance. All Cinch parts maintain ROHS3 compliance and MSL 1 rating, with the exception of 142-0781-821 which carries MSL Not Applicable status. Part 142-0771-831 carries RoHS Compliant status rather than ROHS3 Compliant.
Compliance Considerations: All substitute parts maintain ROHS3 compliance with the exception of 142-0771-831 (RoHS Compliant). REACH status varies: Bulgin parts are REACH Unaffected, while most Cinch parts are REACH Affected, with 142-0771-831 listed as REACH Unaffected. Applications subject to REACH regulations should confirm compliance requirements with specific part selection.
Frequently Asked Questions (FAQ)
Q: Can RFSMACJABA be directly replaced with RFSMACJAAA?
A: Yes. RFSMACJAAA is a parametric equivalent with identical specifications for connector style, impedance, mounting type, frequency range, operating temperature, and voltage rating. Both parts use PEI dielectric material and are manufactured by Bulgin with ROHS3 compliance.
Q: What are the key differences between Bulgin and Cinch substitute parts?
A: The primary differences are dielectric material composition and resulting electrical specifications. Bulgin parts (RFSMACJABA, RFSMACJAAA) use Polyetherimide (PEI) dielectric with 335 V voltage rating and -55°C to 155°C operating range. Cinch parts use Polytetrafluoroethylene (PTFE) dielectric with 170 V voltage rating and extended -65°C to 165°C operating range. All parts maintain 50 ohm impedance, 26.5 GHz frequency capability, and 500 mating cycles.
Q: Are Cinch parts suitable for applications requiring 335 V operation?
A: No. Cinch substitute parts are rated for 170 V maximum. Applications requiring 335 V operation must use Bulgin parts (RFSMACJABA or RFSMACJAAA).
Q: Which substitute part should be selected for extended temperature applications?
A: Cinch Connectivity Solutions parts (142-0761 series, 142-0771 series, 142-0781 series) provide extended operating temperature range of -65°C to 165°C compared to Bulgin parts at -55°C to 155°C. Selection depends on specific temperature requirements and voltage constraints.
Q: Do all substitute parts have identical mating cycle ratings?
A: Yes. All substitute parts are rated for 500 mating cycles, matching the RFSMACJABA specification.
Q: What is the significance of MSL rating differences?
A: Most parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity limitations for storage and handling. Part 142-0781-821 carries MSL Not Applicable status. For standard applications, this difference does not affect component selection.
Q: Are there REACH compliance differences between substitute parts?
A: Yes. Bulgin parts (RFSMACJABA, RFSMACJAAA) are REACH Unaffected. Most Cinch parts are REACH Affected, with the exception of 142-0771-831 which is REACH Unaffected. Applications subject to REACH regulations should confirm specific part compliance requirements.
Q: Can substitute parts be intermixed in the same circuit board design?
A: Yes, provided the application voltage and temperature requirements are compatible with all selected parts. For mixed-manufacturer designs, ensure voltage rating (170 V for Cinch, 335 V for Bulgin) and operating temperature range specifications are satisfied by all parts used.
Q: What is the inventory status of substitute parts?
A: RFSMACJABA has 871 pieces in stock. RFSMACJAAA has 718 pieces. Cinch parts range from 788 to 35,497 pieces in stock, with 142-0761-811 offering the highest availability at 35,497 pieces.
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