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Ground Station for S-band
RFQ for Ground Station for S-band
Status:
Open
Flexible thermal straps
We are looking into a flexible thermal straps between an aluminum plate (EN AW-6082 T6) and a TEC (thermo electric cooler).
Could you send us a recommendation with quote for a thermal strap that meets the following requirements?
Vacuum environment
TEC temperature range: −20 °C to +50 °C, with ramps up to 20 K/min
span plate to TEC: ~100mm
conductance > 1 W/K at 300K (we are interested in the range 250K to 350K)
low mass and stiffness
lead time ~ 1 month
fits on aluminum plate (170mm x 3mm)
Status:
Open
SpaceWire Cable
RFQ for SpaceWire Cable
| PROJECT INFORMATION | |||
| Project / Mission Name | E.g., Earth Observation Constellation, Deep Space Probe | ||
| Target Orbit / Spacecraft Environment | Laboratory use | LEO Internal, LEO External, GEO, Lunar / Deep Space | |
| Subsystem Interconnect Application | InstrumentEGSE Harness | Payload Imager to Mass Memory, Core Bus OBC to Transceiver, Sensor to Processing Node | |
| SUPPLY CHAIN & LOGISTICS | |||
| Quantity Required (Flight Models) | 0 | Number of flight harness assemblies (including flight spares) | |
| Quantity Required (EM / EGSE Models) | 7 | Number of Engineering / FlatSat / EGSE test cables | |
| Target Lead Time (ARO) | 15 weeks | [Weeks / Months] Time from Order to Delivery (typically 8-16 weeks) | |
| Export Control Classification | None | ITAR, EAR (Specify ECCN), Other, None | |
| Technology Readiness Level (TRL) | TRL 6 (Relevant Env) | TRL 9 (Flight Proven), TRL 8, TRL 7, TRL 6 | |
| ECSS Standards Compliance | Full ECSS-E-ST-50-52C + ECSS-Q-ST-70-08C + ECSS-E-ST-50-12C Rev.1 | Full ECSS-E-ST-50-52C + ECSS-Q-ST-70-08C, Tailored ECSS, Commercial High-Rel | |
| CABLE CONSTRUCTION & PHYSICAL SPECS | |||
| Cable Construction Standard | ECSS Type A (Standard 4-Pair Shielded) | ECSS Type A (Standard 4-pair shielded), ECSS Type B, Low-Mass / SpaceWire-Light | |
| Conductor Wire Gauge (AWG) | AWG 26 (Long Distance >5m) | AWG 28 (Standard flight), AWG 26 (Long runs), AWG 30 (Ultra-low mass) | |
| Conductor Material | Silver-Plated Copper Alloy (SPCA) | Silver-Plated High-Strength Copper Alloy (SPCA), Nickel-Plated Copper | |
| Dielectric & Primary Insulation | Expanded PTFE (Low Dielectric Const) | Expanded PTFE (Low dielectric constant), Kapton / Polyimide, PFA | |
| Shielding Architecture | Double Shielded (4 Inner Pair Foils + Outer Braid) | Double Shielded (4 inner individual pair shields + overall outer braid), Single Outer Braid | |
| Outer Cable Jacket Material | Extruded PFA | Extruded PFA, Cross-linked ETFE (Tefzel), Woven Nomex Yarn | |
| Assembly Total Length (Pin-to-Pin) | 10 m | [Meters / mm] End-to-end tip length (e.g., 1.5 m, 3.2 m; standard max is 10 m) | |
| Maximum Linear Mass | N/A | [g/m] Mass per unit length of raw cable (e.g., ≤ 45 g/m) | |
| Minimum Bend Radius (Static / Dynamic) | N/A | [mm] Static routing bend limit vs. hinge/deployable dynamic limit | |
| CONNECTORS, BACKSHELLS & TERMINATION | |||
| Near-End Connector Type (J1) | Micro-D 9-pin Male (Plug) per ESCC 3401/029 | Micro-D 9-pin Male (Plug) per ESCC 3401/029, Micro-D 9-pin Female (Receptacle), PCB Header | |
| Far-End Connector Type (J2) | Micro-D 9-pin Female per ESCC 3401/029 | Micro-D 9-pin Male (Plug) per ESCC 3401/029, Micro-D 9-pin Female (Receptacle), Flying Leads | |
| SpaceWire Pinout Assignment | Through wiring 1:1 (Pint 1 to Pin 1) | Standard ECSS-E-ST-50-52C (Pin 1 Din+, Pin 2 Sin+, etc.), Custom Pinout | |
| Backshell & EMC Shield Termination | Full 360-deg Band-It / Braid Trap EMC Backshell | Full 360° Band-It Tie / Braid Trap Backshell, Solder Sleeve, Standard Heat-Shrink Boot | |
| Hardware Locking Mechanism | Hex Jackposts (#2-56 UNC) | Hex Jackposts (#2-56 or M2), Spring Latches, Low-Profile Screws | |
| ELECTRICAL & TRANSMISSION PERFORMANCE | |||
| Differential Characteristic Impedance | 100 ± 6 Ω | [Ohms (Ω)] Strict requirement: 100 ± 6 Ω (or 100 ± 10 Ω over temp) | |
| Maximum Targeted Data Signaling Rate | 100 Mbps (Conservative) | 200 Mbps (Standard SpaceWire), 400 Mbps (High-Speed), 100 Mbps, 50 Mbps | |
| Intra-Pair Differential Skew | < 100 ps/m raw wire | [ps/m] Propagation delay mismatch within pair (e.g., ≤ 100 ps/m) | |
| Pair-to-Pair Differential Skew | < 100 ps/m raw wire | [ps/m] Delay difference between Data and Strobe pairs (e.g., ≤ 500 ps/m) | |
| Insertion Loss / Attenuation | < 0.37 dB/m @ 100 MHz (AWG 26) | [dB/m @ 200 MHz] Max high-frequency signal attenuation over length | |
| Near-End Crosstalk (NEXT) | PSNEXT ≥ 73 dB @ 100 MHz | [dB] Crosstalk isolation between Tx and Rx pairs (e.g., ≤ -40 dB) | |
| Screening Effectiveness / Transfer Imp. | N/A | [dB] EMI immunity against internal spacecraft radiated fields (e.g., ≥ 60 dB) | |
| ENVIRONMENTAL & SCREENING | |||
| Operating Temperature Range | +10°C to +40°C | [°C] Allowable flight harness temperature (e.g., -55°C to +125°C or -100°C to +150°C) | |
| Outgassing Limits (CVCM / TML) | Standard Commercial | CVCM < 0.1% & TML < 1.0% (Standard), Ultra-Clean (CVCM < 0.05%) | |
| Radiation / TID Resistance | None | [Mrad] Total radiation dose survival for polymer insulation (e.g., > 10 Mrad) | |
| Routing Location & External Protection | Ground use | Internal Bus (Standard), External MLI Bundle, External AO/Atomic Oxygen Exposed | |
Status:
Open
AIS SPACE RECEIVER
RFQ for AIS SPACE RECEIVER
Status:
Open
K/Ka-band Transmitter
RFQ for K/Ka-band Transmitter
Status:
Open
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