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Liste de produits

RF High Frequency Probe, Ø7.00 mm - RF3350-01C

Large-diameter RF probe for high-power RF test fixtures and coaxial interface testing. Inner contact resistance stays at or below 3 mΩ.

rf3350 01c
Longueur totale Diamètre du piston Résistance de contact Plage de température Durabilité
33,50 mm Ø7,00 mm ≤3 mΩ (intérieure) −25°C–299°C ≥10 000 cycles
Spécification Détails
Longueur totale33,50 mm
Diamètre du pistonØ7,00 mm
Résistance de contact≤3 mΩ (intérieure)
Plage de température−25°C–299°C
Durabilité≥10 000 cycles

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RF High Frequency Probe, Ø4.00 mm - RF2380-300A

Mid-diameter RF probe with a 4.00 mm plunger for applications requiring a larger contact footprint. Inner contact resistance holds at or below 3 mΩ. The extended operating temperature range is suitable for high-temperature burn-in and thermal cycling test environments.

rf2380 300a
Longueur totale Diamètre du piston Résistance de contact Plage de température Durabilité
23,80 mm Ø 4,00 mm ≤3 mΩ (intérieure) −25°C–327°C ≥10 000 cycles
Spécification Détails
Longueur totale23,80 mm
Diamètre du pistonØ 4,00 mm
Résistance de contact≤3 mΩ (intérieure)
Plage de température−25°C–327°C
Durabilité≥10 000 cycles

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RF High Frequency Probe, Ø3.80 mm - RF2280-380A

Sonde RF coaxiale compacte pour bancs d'essai haute fréquence. La résistance de contact interne de 3 mΩ ou moins maintient l'intégrité du signal sur les mesures à large bande. La longueur totale de 22,80 mm s'adapte aux architectures de sockets de test RF standard.

rf2280 380a
Longueur totale Diamètre du piston Résistance de contact Plage de température Durabilité
22,80 ±0,50 mm Ø3,80 mm ≤3 mΩ (intérieure) −25°C–299°C ≥10 000 cycles
Spécification Détails
Longueur totale22,80 ±0,50 mm
Diamètre du pistonØ3,80 mm
Résistance de contact≤3 mΩ (intérieure)
Plage de température−25°C–299°C
Durabilité≥10 000 cycles

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How to Choose the Right RF High Frequency Probe

how to choose the right rf high frequency probe

  1. Match plunger diameter to your contact interface: Start with the contact pad or connector footprint on your DUT. 3.80-4.00 mm diameters are fine for standard coaxial interfaces. For larger contact areas or power-level RF testing, a 7.00 mm plunger handles the job.
  2. Check your operating temperature range: All three probes operate well below freezing at −13°F. The RF2380-300A extends to 621°F, making it the right choice for high-temperature burn-in and thermal cycling fixtures. The RF2280-380A and RF3350-01C cover up to 572°F.
  3. Confirm contact resistance meets your measurement threshold: All our RF high frequency probes maintain inner contact resistance at or below 3 mΩ. For signal-level measurements where even small resistance adds noise, this spec keeps your measurement error within acceptable limits.
  4. Factor in lifecycle against your production volume: Match the lifecycle rating to your expected test volume per probe change. For higher-cycle applications, contact our engineering team to discuss plating and spring material options that extend service life.
  5. Consider fixture space constraints: The RF2280-380A at 22.80 mm and RF2380-300A at 23.80 mm fit standard fixture heights. The RF3350-01C at 33.50 mm is better suited for larger fixtures with more Z-axis clearance.
  6. 6. Not sure? Talk to our engineers: Envoyez-nous votre schéma de carte et votre dessin de montage. Notre équipe de plus de 20 ingénieurs dévoués vous répondra dans un délai de 1 à 3 jours avec une recommandation de sonde et un calendrier d'échantillons gratuits.

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Adopté par les ingénieurs de test dans tous les secteurs

Telecommunications / 5G

We needed RF probes that could hold 50 Ω impedance across 200,000+ insertion cycles on our 5G NR front-end module production line. The PM-RF30S maintained return loss below −15 dB throughout the full test program without a single probe swap. That consistency eliminated the re-calibration cycles we’d been running every 50,000 boards with our previous probes. Our test throughput improved by roughly 15% just from removing those interruptions.

Chen Wei, RF Test Engineering Manager,

Tier-1 Telecommunications OEM, Shenzhen

Automotive / ADAS

Our 77 GHz radar module test fixtures require probes that maintain impedance consistency at the board-level SMP interface. The PM-RF40A gave us clean measurements up to 6 GHz on the IF chain, and the MMCX-to-Fakra adapter path worked without additional impedance matching. We’ve deployed these across three fixture builds with no issues. Turnaround on custom samples was under two weeks, which kept our validation timeline on track.

Dr. Tobias Richter, Test Fixture Design Lead,

Automotive Electronics Tier-2 Supplier, Germany

Consumer Electronics / IoT

For our Wi-Fi 6E module production line, we needed compact RF probes that fit a 2.0 mm pitch fixture layout without cross-coupling. The PM-RF40B’s low-profile coaxial design fits our space constraints, and the interchangeable center conductor means we can swap worn contacts without replacing the entire probe assembly. It cut our probe maintenance cost by about 30%.

Yuki Tanaka, Senior QA Engineer,

Consumer Electronics OEM, Japan

RF High Frequency Probes FAQs

What frequency range do your RF probes cover?

Our standard RF probe configurations cover DC to 20 GHz. The PM-RF30 series reaches 20 GHz with SMA connectivity. The PM-RF40 series covers up to 6 GHz using MMCX interfaces. The PM-RFC01 RF current probe operates from 1 MHz to 1 GHz. For applications above 20 GHz, we offer custom designs with tighter dimensional controls and specialized connectors.

Can you customize RF probes for our existing test fixture?

Yes, most RF probe orders are custom configurations. Send us your fixture layout, test point spacing, connector type, and frequency requirements. We provide design feedback within 1–3 days and deliver prototype samples within two weeks. Custom parameters include center conductor diameter, spring force, overall length, plating material, and connector interface.

What’s the impedance of your RF probes?

All our RF signal probes maintain a 50 Ω characteristic impedance, matching standard RF instrumentation. The coaxial geometry is dimensionally controlled to hold this impedance across the full operating bandwidth. Return loss performance is verified during production to confirm consistency.

How do RF current probes differ from RF signal probes?

RF signal probes make direct galvanic contact with a test point to transmit the signal. RF current probes work differently. They clamp around a conductor and measure the magnetic field generated by the current flowing through it, without breaking the circuit. Our PM-RFC01 covers 1 MHz to 1 GHz for EMC pre-compliance testing and conducted emission measurements on cables and harnesses.

What certifications does Promax hold for RF probe manufacturing?

Promax Pogo Pin is certified under ISO 9001, ISO 14001, ISO 45001, and IECQ QC080000. Our production facility maintains >99% mass production yield across 8,000+ custom designs delivered to clients including Huawei, Xiaomi, and Amphenol.

Offrez-vous des échantillons gratuits pour des tests de qualification ?

Yes. We provide free samples so you can validate fit, frequency performance, and mechanical compatibility in your fixture before committing to production. Standard catalog configurations ship within two weeks. Custom samples may take additional time depending on design complexity.

How quickly can I get prototype probes for a new fixture build?

We respond to design requests within 1–3 days and deliver prototype probes within two weeks. When you’re ready for production volume, we scale on the same manufacturing line without switching vendors.

What’s the difference between return loss and insertion loss?

Return loss measures how much signal reflects toward the source because of impedance mismatch at the probe interface. Higher return loss means less reflection and a better impedance match. Insertion loss measures how much signal the probe absorbs or attenuates as it passes through. Lower insertion loss means more of your signal reaches the measurement instrument. Both specs matter for accurate RF testing, and we verify both during production.

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