Your test fixture’s accuracy starts with the probe. Promax Pogo Pin manufactures spring-loaded ICT test probes engineered for high-cycle bed-of-nails fixtures. You get stable contact resistance, consistent spring force, and repeatable performance across hundreds of thousands of test cycles. Browse our standard and custom ICT probe range below, or request a quote matched to your fixture specification.
High-force ICT probe for aggressive contact on oxidized or contaminated pads. Supports 10 A instantaneous current for power rail testing. 200 gf spring force breaks through flux residue reliably.
| Overall Length | Plunger Ø | Rated Current | Contact Resistance | Full Stroke | Working Stroke | Spring Force | Temperature Range | Durability |
|---|---|---|---|---|---|---|---|---|
| 33.40 ±0.10 mm | Ø0.90 mm | 3.0 A continuous, 10 A instantaneous | <20 mΩ | 6.40 mm | 4.30 mm | 200 gf ±20% | −40°F–212°F | ≥3,000 cycles |
| Specification | Details |
|---|---|
| Overall Length | 33.40 ±0.10 mm |
| Plunger Ø | Ø0.90 mm |
| Rated Current | 3.0 A continuous, 10 A instantaneous |
| Contact Resistance | <20 mΩ |
| Full Stroke | 6.40 mm |
| Working Stroke | 4.30 mm |
| Spring Force | 200 gf ±20% |
| Temperature Range | −40°F–212°F |
| Durability | ≥3,000 cycles |
Compact ICT probe for tight-pitch test point layouts. Low 58 gf spring force reduces board stress during testing. Contact resistance below 35 mΩ for accurate signal-level measurements.
| Overall Length | Plunger Ø | Rated Current | Contact Resistance | Full Stroke | Working Stroke | Spring Force | Temperature Range | Durability |
|---|---|---|---|---|---|---|---|---|
| 17.15 ±0.08 mm | Ø0.66 ±0.05 mm | 1.0 A | <35 mΩ | 3.25 mm | 1.83 mm | 58 gf ±20% | −40°F–302°F | ≥20,000 cycles |
| Specification | Details |
|---|---|
| Overall Length | 17.15 ±0.08 mm |
| Plunger Ø | Ø0.66 ±0.05 mm |
| Rated Current | 1.0 A |
| Contact Resistance | <35 mΩ |
| Full Stroke | 3.25 mm |
| Working Stroke | 1.83 mm |
| Spring Force | 58 gf ±20% |
| Temperature Range | −40°F–302°F |
| Durability | ≥20,000 cycles |
Standard ICT probe for high-volume PCB testing. Built for lead-free solder pad contact in production-line bed-of-nails fixtures.
| Overall Length | Plunger Ø | Rated Current | Contact Resistance | Full Stroke | Working Stroke | Spring Force | Temperature Range | Durability |
|---|---|---|---|---|---|---|---|---|
| 34.60 ±0.20 mm | Ø0.50 ±0.02 mm | 3.0 A | <185 mΩ | 6.35 mm | 6.00 mm | 160 gf ±20% | −40°F–302°F | ≥200,000 cycles |
| Specification | Details |
|---|---|
| Overall Length | 34.60 ±0.20 mm |
| Plunger Ø | Ø0.50 ±0.02 mm |
| Rated Current | 3.0 A |
| Contact Resistance | <185 mΩ |
| Full Stroke | 6.35 mm |
| Working Stroke | 6.00 mm |
| Spring Force | 160 gf ±20% |
| Temperature Range | −40°F–302°F |
| Durability | ≥200,000 cycles |
Promax ICT probes are available with Gold, Nickel, Palladium-Nickel, and Platinum plating. Gold is the standard for most ICT applications, as it delivers the lowest and most stable contact resistance. Thicker Gold plating extends probe lifecycle in high-volume production environments. Our engineering team recommends the right option based on your test volume and pad surface condition.
We offer crown, spear, serrated, flat, cup, and round tip geometries. Crown tips are the default for general ICT work. They provide reliable multi-point contact on standard solder pads. For fine-pitch applications below 0.5 mm, spear tips deliver more precise targeting. Your Promax Pogo Pin engineer can match tip geometry to your specific board layout.
Yes. We manufacture probes to match standard receptacle sizes used in major ICT platforms, including 100 mil, 75 mil, and 50 mil center configurations. Send us your receptacle spec or fixture drawing and we’ll confirm compatibility before sampling.
Standard catalog probes have no fixed minimum, so you can order as few as you need. Custom designs typically require 500–1,000 units to cover tooling costs. We provide free samples for qualification testing before you commit to a production order.
Lifecycle depends on spring force, plating type, tip geometry, and board cleanliness. Our standard ICT probes are rated from ≥3,000 to ≥200,000 cycles under typical test conditions. Higher-grade Gold plating and optimized spring materials extend the lifecycle significantly. Contact our team with your test volume and we’ll recommend a probe spec that meets your replacement cycle targets.
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.
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.
Working stroke is the recommended compression range for reliable contact during testing. Full stroke is the maximum physical travel the plunger can achieve. Always design your fixture within the working stroke range to maintain consistent spring force and contact resistance. Compressing beyond the working stroke shortens probe lifecycle and can damage the internal spring.
A test fixture is only as reliable as the probes inside it, so getting the spec right the first time prevents costly downtime, false failures, and unplanned probe changes later in the production cycle. We provide free samples and engineering support are included. Our 20+ probe engineers respond within 1–3 days with a custom recommendation matched to your board layout, fixture design, and production volume.
ISO 9001, ISO 14001, ISO 45001, and IECQ QC080000
Over 15 Years of Expertise
FREE samples provided to ensure product satisfaction
Rapid Turnaround: Mass Production Complete in 15 - 20 Days