AA
Series
Signal Integrity’s AA Series 0.3mm pitch spring probes are engineered to meet the rigorous demands of the high-volume, ultra-fine pitch test socket market. Designed for superior reliability, these 0.3mm pitch spring probes deliver exceptional signal fidelity with bandwidths exceeding 40 GHz and risetimes faster than 22.2 ps. Whether for high-speed digital, RF, or wireless protocols, the AA Series ensures transparent operation with solid precious metal alloy construction for maximum durability.
AA Series: High-Performance 0.3mm Pitch Spring Probes
Engineered for high-volume manufacturing, the AA Series 0.3mm pitch spring probes deliver industry-leading signal integrity. Compare our top models below to find the ideal balance of current handling, spring force, and resistance for your specific test environment.
| Model | Initial Length (inch / mm) |
Op. Position (inch / mm) |
Spring Force | Bandwidth (Insertion Loss) |
Current (Max) |
Resistance | Inductance |
|---|---|---|---|---|---|---|---|
| AA905 | .100″ / 2.54 | .086″ / 2.18 | 20g | > 40 GHz | 1.43 A | 110 mΩ | 0.54 nH |
| AA917 | .219″ / 5.57 | .199″ / 5.05 | 18, 20g | 37.1 GHz | 1.32 A | 100 mΩ | 1.00 nH |
| AA909 | .215″ / 5.45 | .193″ / 4.90 | 12, 17g | 12.0 GHz | 0.95 A | 72 mΩ | 1.54 nH |
| AA925 | CALL | CALL | 18g | – | 1.1 A | 65 mΩ | – |
| AA927 | CALL | CALL | 18g / 30g | – | – | – | – |
Overview
Key Features of Our 0.3mm Pitch Spring Probes
- Ultra-Fine Pitch Capability: Specifically tailored for packaging constraints down to 0.3mm pitch, making them ideal for WLCSP and fine-pitch BGA applications.
- High-Frequency Performance: Excellent signal integrity with insertion loss < -1dB up to 37.1 GHz (AA917) and bandwidths capable of exceeding 40 GHz (AA905).
- Material Excellence: Features solid precious metal alloy tips and plungers to ensure consistent low contact resistance (as low as 72 mOhms) and long cycle life.
- High Current Handling: Capable of handling drive currents up to 1.43 Amps (AA905) in a micro-miniature form factor.
- Versatile Force Options: Standard operating forces ranging from 12g to 20g, with high-force options up to 30g available for specific contact requirements.
Semiconductor Contacts AA Series – 0.3mm (.0118) Pitch
AA905 – The High-Bandwidth Leader
Designed for the fastest risetimes in the market.
- Pitch: 0.3mm
- Bandwidth: > 40 GHz
- Current Rating: 1.43 A
- Self Inductance: 0.54 nH
- Contact Resistance: 110 mΩ
AA909 – Digital & Wireless Precision
Ideal for broadband digital data comms and wireless protocols.
- Pitch: 0.3mm
- Risetime: < 22.2 ps
- Bandwidth: 12.0 GHz
- Current Rating: 0.95 A
- Self Inductance: 1.54 nH
AA917 – RF & Microwave Specialist
Transparent operation for microwave comms and high-speed CMOS/SiGe.
- Pitch: 0.3mm
- Risetime: < 30 ps
- Bandwidth: 37.1 GHz (< -1dB loss)
- Current Rating: 1.32 A
- Self Inductance: 1.0 nH
AA925 – Reliable & Robust
A proven solution for reliable contact in tight-pitch environments.
- Pitch: 0.3mm
- Current Rating: 1.1 A
- Force: 18g
- Contact Resistance: 65 mΩ
AA927 – Solid Alloy Performance
Features a solid precious metal alloy or long-life tool steel plunger for high-volume durability.
The AA927 provides exceptional longevity and stability for high-cycle applications, offering multiple tip options to suit your specific DUT requirements.
- Pitch: 0.3mm
- Force: 18g (Standard) / 30g (High Force)
- Tip Options: Ogive, 4-Point Crown
Browse the full catalog of Signal Integrity High-Frequency Spring Probes here.