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RFSMACJAAC SMA Connector Jack Female Socket 50 Ohms Board Edge End Launch
Part Overview
The RFSMACJAAC is an SMA connector jack manufactured by Bulgin, designed as a female socket with 50 ohms impedance for board edge end launch applications. This coaxial RF connector features solder termination for both contact and shield, operating across a frequency range up to 26.5 GHz. The component is currently active in production status with 974 pieces in stock.
Equivalent and substitute parts are necessary when the primary part becomes unavailable, when alternative manufacturers are required for supply chain diversification, or when design specifications allow for compatible alternatives that meet the same electrical and mechanical requirements.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | RFSMACJAAC |
| Manufacturer | Bulgin |
| Connector Style | SMA |
| Connector Type | Jack, Female Socket |
| Impedance | 50 Ohms |
| Mounting Type | Board Edge, End Launch |
| Contact Termination | Solder |
| Shield Termination | Solder |
| Frequency Maximum | 26.5 GHz |
| Fastening Type | Threaded |
| Number of Ports | 1 |
| Operating Temperature Range | -55°C to 155°C |
| Voltage Rating | 335 V |
| Mating Cycles | 500 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the RFSMACJAAC is determined by strict equivalence across the following critical parameters:
Mandatory 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
- Frequency Maximum: 26.5 GHz
- Fastening Type: Threaded
- Number of Ports: 1
- Mating Cycles: 500
All substitute parts listed maintain these core electrical and mechanical specifications. Variations in secondary parameters such as dielectric material, center contact plating, operating temperature range, and voltage rating are noted but do not disqualify substitution when the mandatory parameters align.
Parameter Comparison
| Parameter | RFSMACJAAC (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 |
| 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 |
| Fastening Type | Threaded | Threaded | Threaded | Threaded | Threaded | Threaded | Threaded | Threaded | Threaded | Threaded | Threaded |
| 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 |
| 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 |
| Dielectric Material | Polyetherimide (PEI) | Polyetherimide (PEI) | Polytetrafluoroethylene (PTFE) | Polytetrafluoroethylene (PTFE) | Polytetrafluoroethylene (PTFE) | Polytetrafluoroethylene (PTFE) | Polytetrafluoroethylene (PTFE) | Polytetrafluoroethylene (PTFE) | Polytetrafluoroethylene (PTFE) | Polytetrafluoroethylene (PTFE) | Polytetrafluoroethylene (PTFE) |
| Center Contact Plating | Not Specified | Not Specified | Gold | Gold | Gold | Gold | Gold | Gold | Gold | Gold | Gold |
| Inventory Status | 974 Pcs | 718 Pcs | 35497 Pcs | 1502 Pcs | 1679 Pcs | 1097 Pcs | 2377 Pcs | 788 Pcs | 1442 Pcs | 2200 Pcs | 2085 Pcs |
Engineering Selection Recommendations
Primary Equivalent (Same Manufacturer): RFSMACJAAA from Bulgin is the closest equivalent, maintaining identical electrical specifications including the 335 V voltage rating and -55°C to 155°C operating temperature range. Both parts are ROHS3 compliant and feature polyetherimide dielectric material. This part is recommended when manufacturer consistency is required.
Cross-Manufacturer Equivalents (Cinch Connectivity Solutions): The Cinch 142-0761 series (142-0761-811, 142-0761-841, 142-0761-851, 142-0761-861, 142-0761-871, 142-0761-891) and 142-0771 series (142-0771-821, 142-0771-831) provide full electrical and mechanical compatibility. These parts feature polytetrafluoroethylene dielectric material and gold-plated center contacts. All are ROHS3 compliant except 142-0771-831, which carries RoHS Compliant status. The Cinch parts operate across an extended temperature range of -65°C to 165°C, providing broader environmental capability. Voltage rating is 170 V, which is lower than the primary part but remains suitable for standard 50-ohm RF applications.
High-Frequency Variant: 142-0781-821 from Cinch Connectivity Solutions is designated as a high-frequency end launch SMA backshell jack. It maintains all core RF specifications and is ROHS3 compliant with REACH Affected status. This part offers the highest inventory availability at 2085 pieces.
All substitute parts maintain the critical SMA jack female socket configuration, 50-ohm impedance, board edge end launch mounting, solder termination, 26.5 GHz frequency capability, and 500 mating cycle rating.
Frequently Asked Questions (FAQ)
Q: Can RFSMACJAAA be used as a direct replacement for RFSMACJAAC? A: Yes. RFSMACJAAA is a parametric equivalent from the same manufacturer (Bulgin) with identical electrical and mechanical specifications, including impedance, frequency range, operating temperature, and voltage rating. Both are ROHS3 compliant with MSL 1 rating.
Q: What is the primary difference between Bulgin and Cinch substitute parts? A: The Cinch parts feature polytetrafluoroethylene (PTFE) dielectric material instead of polyetherimide (PEI), and include gold-plated center contacts. Cinch parts operate across a wider temperature range (-65°C to 165°C versus -55°C to 155°C) but have a lower voltage rating (170 V versus 335 V). All maintain the same 50-ohm impedance and 26.5 GHz frequency capability.
Q: Are all listed substitutes ROHS3 compliant? A: Ten of the eleven substitute parts are ROHS3 compliant. Part 142-0771-831 carries RoHS Compliant status without the ROHS3 designation. All parts meet RoHS requirements.
Q: Which substitute part has the highest inventory availability? A: Part 142-0761-811 from Cinch Connectivity Solutions has the highest inventory with 35,497 pieces in stock.
Q: Does the dielectric material change affect RF performance? A: Both polyetherimide (PEI) and polytetrafluoroethylene (PTFE) are suitable dielectric materials for 50-ohm SMA connectors operating to 26.5 GHz. The material difference does not affect the core RF specifications or impedance matching.
Q: Can I use a Cinch part in place of the Bulgin RFSMACJAAC? A: Yes. All Cinch parts listed maintain the mandatory electrical and mechanical parameters: SMA jack female socket, 50-ohm impedance, board edge end launch mounting, solder termination, 26.5 GHz frequency, and 500 mating cycles. The parts are mechanically and electrically interchangeable.
Q: What is the significance of the voltage rating difference? A: The RFSMACJAAC has a 335 V rating while Cinch substitutes are rated at 170 V. For standard RF signal applications, both ratings are adequate. The lower rating on Cinch parts does not impact RF performance but may be relevant for high-voltage DC bias applications.
Q: Are there REACH compliance considerations? A: RFSMACJAAA and most Cinch parts are REACH Affected. Part 142-0771-831 is REACH Unaffected. Verify REACH compliance requirements for your specific application and region.
Q: What does MSL 1 (Unlimited) mean? A: Moisture Sensitivity Level 1 with unlimited shelf life indicates the component has minimal moisture sensitivity and does not require special moisture-controlled storage or handling procedures.
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