Mounting Plate/PCB for Test Probe Assemblies

Product Specifications

Technical details and manufacturing context for Mounting Plate/PCB

Definition

The mounting plate/PCB is a foundational component in a test probe assembly, designed to securely hold and align multiple test probes while providing the necessary electrical pathways for signal transmission. It ensures precise positioning of probes for accurate testing of electronic components or circuit boards, and may incorporate features for thermal management, strain relief, and easy maintenance. The component is typically manufactured from materials such as FR-4 epoxy laminate, aluminum alloy, or stainless steel, depending on the application requirements. Key parameters include board thickness (1.6–3.2 mm), copper weight (1–2 oz), surface finish (HASL, ENIG, OSP), maximum operating temperature (130–150 °C), minimum operating temperature (-40 to -20 °C), insulation resistance (≥100 MΩ), dielectric withstanding voltage (500–1000 V AC), comparative tracking index (150–600 V), flammability rating (94V-0), flatness (≤0.1 mm), hole position tolerance (±0.05 mm), surface resistivity (≥10^6 MΩ), and weight (0.05–0.2 kg). These values are reference ranges per IPC-2221, IPC-6012, IEC 60112, UL 94, and IEC 60093, and must be verified for the specific model and application. The mounting plate/PCB is used in industries such as computer, electronic, and optical product manufacturing, where it serves as a critical interface for testing electronic assemblies. It is a component-level part, not a standalone product, and its performance depends on proper integration with the test probe assembly. Buyers should confirm all specifications with the legal manufacturer or supplier before procurement.

Working Principle

The mounting plate/PCB provides a rigid, flat surface with precisely drilled or machined holes to accept and secure individual test probes. If it includes a PCB layer, it routes electrical signals from the probes through conductive traces to a connector interface. It maintains mechanical stability during repeated probe actuation and may include alignment pins or guides for consistent positioning relative to the device under test. The component ensures accurate probe contact and signal integrity, while also managing thermal and mechanical stresses.

Common Materials

FR-4 (Flame Retardant 4) epoxy laminate, Aluminum alloy, Stainless steel

Technical Parameters

Parameter	Typical range	Notes & selection driver
Board Thickness	1.6–3.2 mm	Standard thickness for mounting plates; thicker for higher mechanical strength.IPC-2221
Copper Weight	1–2 oz	Affects current carrying capacity and thermal performance.IPC-6012
Surface Finish	HASL, ENIG, OSP	ENIG for better flatness and corrosion resistance.IPC-6012
Max Operating Temperature	130–150 °C	Limited by solder melting point and substrate material.IPC-2221
Min Operating Temperature	-40–-20 °C	Below this, brittleness may occur.IPC-2221
Insulation Resistance	≥100 MΩ	Minimum between isolated conductors.IPC-6012
Dielectric Withstanding Voltage	500–1000 V AC	No breakdown or arcing for 1 minute.IPC-6012
CTI (Comparative Tracking Index)	150–600 V	Higher CTI for better tracking resistance.IEC 60112
Flammability Rating	94V-0	Required for safety in electronic assemblies.UL 94
Flatness	≤0.1 mm	Critical for probe alignment and contact.IPC-6012
Hole Position Tolerance	±0.05 mm	Ensures accurate mounting of probes.IPC-6012
Surface Resistivity	≥10^6 MΩ	Prevents leakage currents.IEC 60093
Weight	0.05–0.2 kg	Depends on size and thickness.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Base Plate Part
Provides primary structural support and defines the mounting footprint for the assembly.

Material: Aluminum alloy or stainless steel
PCB Layer (if applicable) Optional Part
Routes electrical signals from individual probes to a centralized connector via etched copper traces.

Material: FR-4 laminate with copper cladding
Mounting Holes/Inserts Part
Precision holes or threaded inserts that accept and secure the shafts of test probes.

Material: Stainless steel or plated brass
Alignment Pins/Guides Part
Ensure precise and repeatable positioning of the entire assembly relative to the device under test.

Material: Hardened steel

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Test Probe Assembly

View system integration details

Manufacturers of Mounting Plate/PCB

Manufacturer profiles associated with Mounting Plate/PCB.

Sourcing Mounting Plate/PCB from China?

Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.

Request manufacturers We manufacture this

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Frequently Asked Questions

What materials are commonly used for mounting plates/PCBs?

Common materials include FR-4 epoxy laminate, aluminum alloy, and stainless steel. The choice depends on mechanical strength, thermal performance, and cost requirements.

What standards apply to mounting plates/PCBs?

Relevant standards include IPC-2221 for board thickness, IPC-6012 for copper weight, surface finish, insulation resistance, dielectric withstanding voltage, flatness, and hole position tolerance, IEC 60112 for CTI, UL 94 for flammability, and IEC 60093 for surface resistivity.

How do I verify the suitability of a mounting plate/PCB for my application?

Check the manufacturer's datasheet for model-specific values of thickness, copper weight, surface finish, temperature ranges, electrical ratings, and mechanical tolerances. Confirm compliance with applicable standards and test conditions.

What are typical failure modes of mounting plates/PCBs?

Potential failures include delamination, cracking, excessive warpage, corrosion of surface finish, and electrical breakdown. Regular inspection and adherence to operating limits can mitigate these risks.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Buyer enquiry

Request manufacturing insight for Mounting Plate/PCB

Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.

Where it goes: Straight to the CNFX editorial desk, and to the manufacturer if this product is linked to a claimed profile. Nothing is broadcast to a supplier list.
Your details stay here: We do not sell or rent enquiry data, and we do not add you to a mailing list. Used only to answer this request.
No commission, no middleman: CNFX is a directory. We take no cut of any order and never negotiate on a supplier's behalf.
What we don't claim: A listing is not an endorsement. Qualify every supplier and verify every figure yourself before ordering.

pressure:	Atmospheric to 1.5 bar
other spec:	Max current per contact: 3A, Insulation resistance: >10^9 Ω
temperature:	-40°C to +125°C

Mounting Plate/PCB

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards