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Smiths Interconnect
Standard Spring Probes

Standard Spring Probes

Product catalog summary

Overview
Smiths Connectors specializes in spring probe technology, offering solutions with high compliance ratios, low profiles, and excellent performance in challenging environments. These connectors are designed for high-frequency applications and provide exceptional misalignment tolerance, low stable resistance, and environmental sealing.

Key Features and Benefits

Low Profile, High Compliance Ratio: Suitable for dense connector designs and vibration environments.
Blind Mate Capability: Allows engagement and disengagement at a 90° angle, ideal for quick-disconnect applications.
High Frequency: Short signal paths ensure excellent performance in both analog and digital applications.
Misalignment Tolerance: Probes can contact any point within the target's diameter.
Low Stable Resistance: Supports up to 30 Amps with stable contact resistance under shock and vibration.
Environmental Sealing: Meets IP68 and MIL810 standards for harsh conditions.
Higher Current Ratings: Customizable design parameters for increased current capacity.
Shock & Vibration Resistance: Ensures reliable contact with constant force against mating surfaces.
High Insertion Life: Capable of 20K to 300K cycles, maintaining contact force over millions of cycles.

Spring Probe Technology
Smiths Connectors leads in spring contact probe design, enhancing product capabilities through innovative connector solutions.

Specifications and Ordering
The document provides detailed specifications for various probes, including dimensions, current ratings, spring force, resistance, travel limits, and materials. Each probe is identified by a part number for ordering purposes.

Connector Spring Probes Specifications
General Information: Dimensions are provided in inches with metric equivalents. Specifications for various connector spring probes and pin specifications are outlined.

Probe Specifications:

Minimum Centers: 0.125 inches (3.18 mm) to 0.25 inches (6.35 mm).
Current Rating: 3 A to 30 A continuous, depending on the probe type.
Spring Force: 37 g to 275 g at specified travel distances.
Typical Resistance: Less than 5 mΩ to 50 mΩ.
Maximum Travel: 0.08 inches (2.03 mm) to 1.50 inches (0.059 mm).
Working Travel: 0.039 inches (1.00 mm) to 1.00 inches (0.039 mm).

Materials:

Barrel: Brass or nickel/silver, often gold or DuralloyTM plated.
Spring: Stainless steel, typically passivated.
Plunger: Brass or full-hard beryllium copper, often gold plated.

Ordering Information: Each probe type has a specific part number for ordering, such as 100804-002, 101402-000, and others.

Pin Specifications:

Mounting Hole: Sizes range from 0.034 inches (0.86 mm) to 0.084 inches (2.15 mm).
Pin Material: Brass.
Plating Material: Gold over nickel.

Ordering Information: Part numbers for pins include 305328-000, 305329-000, and others.

Global Support: Contact information is provided for Smiths Connectors' offices in the Americas, Europe, and Asia, with phone numbers and email addresses for customer service and inquiries.

Catalog excerpts

smiths connectors SPRING PROBES Loose Probe & Connector Solutions HYPERTAC """""""BiSEes SABRfTEC

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SPRING PROBE Technology Smiths Connectors is the world leader in spring contact probe design and the industry’s expert in applying spring probes as connector contacts. Embodied in our connector products, probes are an enabling technology that fundamentally changes the capabilities of the products in which they are incorporated. LOW PROFILE, HIGH COMPLIANCE RATIO EXCELLENT FOR BLIND MATE Spring probe technology permits a very high compliance-to-length ratio. This allows Smiths Connectors to design connectors as dense as 2mm, while maintaining 0.5mm of compliance. Spring probe connectors are low...

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CONNECTOR SPRING PROBES STANDARD CONNECTOR PROBES Dimensions & Specifications PROBE SPECIFICATIONS Minimum Centers Current Rating Spring Force Typical Resistance Maximum Travel Working Travel MATERIALS Barrel Spring Plungers (individual probe in free air @ ambient temperature) Brass, gold plated Stainless steel Beryllium copper, gold plated HOW TO ORDER Part Number PROBE SPECIFICATIONS Minimum Centers Current Rating Spring Force Typical Resistance Maximum Travel Working Travel (individual probe in free air @ ambient temperature) Barrel Spring Plunger Brass, gold plated Stainless steel, gold plated...

Open the catalog to page 4

CONNECTOR SPRING PROBES PROBE SPECIFICATIONS Minimum Centers Current Rating Spring Force Typical Resistance Maximum Travel Working Travel (individual probe in free air @ ambient temperature) MATERIALS Barrel Spring Plunger Nickel/silver, gold plated Stainless steel, gold plated Beryllium copper, gold plated HOW TO ORDER Part Number *Not recommended for use at maximum travel PROBE SPECIFICATIONS Minimum Centers Current Rating Spring Force Typical Resistance Maximum Travel Working Travel 0.017 (0.43) (individual probe in free air @ ambient temperature) MATERIALS Barrel Spring Plunger Phosphor bronze,...

Open the catalog to page 5

CONNECTOR SPRING PROBES ►► PROBE SPECIFICATIONS Minimum Centers Current Rating Spring Force Typical Resistance Maximum Travel Working Travel (individual probe in free air @ ambient temperature) Barrel Spring Plunger Nickel/silver, gold plated Stainless steel, gold plated Beryllium copper, gold plated HOW TO ORDER Part Number PROBE SPECIFICATIONS Minimum Centers Current Rating Spring Force Typical Resistance Maximum Travel Working Travel MATERIALS Barrel Spring Plunger Nickel/silver, gold plated Stainless steel, gold plated Beryllium copper, gold plated HOW TO ORDER Part Number (individual probe...

Open the catalog to page 6

CONNECTOR SPRING PROBES ►► PROBE SPECIFICATIONS Minimum Centers Current Rating Spring Force Typical Resistance Maximum Travel Working Travel (individual probe in free air @ ambient temperature) Barrel Spring Plunger Nickel/silver, gold plated Stainless steel, gold plated Beryllium copper, gold plated HOW TO ORDER Part Number PROBE SPECIFICATIONS Minimum Centers Current Rating 0.048 (1.22) Spring Force Typical Resistance Maximum Travel Working Travel MATERIALS Barrel Spring Plungers Nickel/silver, gold plated Stainless steel Beryllium copper, gold plated HOW TO ORDER Part Number (individual probe...

Open the catalog to page 7

CONNECTOR SPRING PROBES ►► PROBE SPECIFICATIONS Minimum Centers Current Rating Spring Force Typical Resistance Maximum Travel Working Travel (individual probe in free air @ ambient temperature) MATERIALS Barrel Spring Plunger Bias Ball Nickel/silver, gold plated Stainless steel, passivated Beryllium copper, gold plated Stainless steel Part Number PROBE SPECIFICATIONS Minimum Centers Current Rating 0.05 (1.27) Spring Force Typical Resistance Maximum Travel Working Travel (individual probe in free air @ ambient temperature) MATERIALS Barrel Spring Plunger Nickel/silver, gold plated Stainless steel,...

Open the catalog to page 8

CONNECTOR SPRING PROBES ►► PROBE SPECIFICATIONS Minimum Centers Current Rating Spring Force Typical Resistance Maximum Travel Working Travel (individual probe in free air @ ambient temperature) MATERIALS Barrel Spring Plunger Bias Ball Nickel/silver, gold plated Stainless steel Beryllium copper, gold plated Stainless steel Part Number PROBE SPECIFICATIONS Minimum Centers Current Rating Spring Force Typical Resistance Maximum Travel Working Travel (individual probe in free air @ ambient temperature) MATERIALS Barrel Spring Plunger Bias Ball Receptacle Nickel/silver, gold plated Stainless steel...

Open the catalog to page 9

CONNECTOR SPRING PROBES ►► PROBE SPECIFICATIONS Minimum Centers Current Rating Spring Force Typical Resistance Maximum Travel Working Travel MATERIALS Barrel Spring Plunger Ball Nickel/silver, gold plated Stainless steel, passivated Beryllium copper, gold plated Stainless steel, gold plated HOW TO ORDER Part Number (individual probe in free air @ ambient temperature) PROBE SPECIFICATIONS Minimum Centers Current Rating Spring Force Typical Resistance Maximum Travel Working Travel (individual probe in free air @ ambient temperature) Barrel Spring Plunger Brass, gold plated Stainless steel, passivated...

Open the catalog to page 10

CONNECTOR SPRING PROBES ►► PROBE SPECIFICATIONS Minimum Centers Current Rating Spring Force Typical Resistance Maximum Travel Working Travel (individual probe in free air @ ambient temperature) MATERIALS Barrel Spring Plunger Brass, gold plated Stainless steel Brass, gold plated HOW TO ORDER Part Number PROBE SPECIFICATIONS Minimum Centers Current Rating 0.05 (1.27) Spring Force Typical Resistance Maximum Travel Working Travel Barrel Spring Plunger Ball Brass, gold plated Music wire, nickel plated Beryllium copper, gold plated Stainless steed HOW TO ORDER Part Number (individual probe in free...

Open the catalog to page 11

CONNECTOR SPRING PROBES ►► PROBE SPECIFICATIONS Minimum Centers Current Rating Spring Force Typical Resistance Maximum Travel Working Travel Barrel Spring Plunger Part Number Nickel/silver, gold plated Stainless steel, passivated Brass, DuralloyTM PROBE SPECIFICATIONS 0.082 (2.08) Spherical Radius (individual probe in free air @ ambient temperature) Minimum Centers Current Rating Spring Force Typical Resistance Maximum Travel Working Travel (individual probe in free air @ ambient temperature) MATERIALS Barrel Spring Plunger Brass, DuralloyTM plated Stainless steel, passivated Brass, DuralloyTM...

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Standard Spring Probes

Standard Spring Probes

Catalog excerpts

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