Reference Core: Supply Voltage Range 4.5V to 30V

Component Specifications

Definition

The Reference Core is a critical electronic component within voltage reference modules that generates a highly accurate and stable DC voltage signal. It serves as a calibration standard for analog-to-digital converters, voltage regulators, measurement instruments, and control systems in industrial machinery. This component maintains consistent voltage output despite variations in temperature, load, and input power, ensuring reliable operation of sensitive electronic circuits.

Working Principle

The Reference Core operates based on bandgap voltage reference technology, which combines the negative temperature coefficient of a bipolar transistor's base-emitter voltage with the positive temperature coefficient of the thermal voltage. By precisely scaling and summing these voltages, it produces a stable reference voltage that remains constant over temperature variations. Advanced versions may use buried Zener diodes or precision thin-film resistors to achieve even higher stability.

Materials

Semiconductor silicon substrate with doped regions, silicon dioxide insulation layers, aluminum or copper metallization for interconnects, ceramic or plastic encapsulation (typically DIP, SOIC, or SMD packages), gold bonding wires for chip connections.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Package Types	TO-92, SOIC-8, SOT-23
Output Current	10-50 mA
Output Voltage	2.5V, 5.0V, 10.0V (typical)
Initial Accuracy	±0.05% to ±0.5%
Long Term Stability	20-50 ppm/1000 hours
Supply Voltage Range	4.5V to 30V
Operating Temperature	-40°C to +125°C
Temperature Coefficient	1-10 ppm/°C

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

Standards

IEC 60747, JEDEC JESD22, MIL-PRF-38535

Parent Products

This component is used in the following industrial products

Voltage Reference

A precision electronic component that provides a stable, known voltage for comparison in measurement circuits.

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Engineering Analysis

Risks & Mitigation

Thermal drift causing voltage inaccuracy
Long-term aging affecting stability
Supply voltage variations impacting output
Electrostatic discharge damage during handling
Mechanical stress in PCB mounting

FMEA Triads

Trigger: Thermal stress from adjacent components
Failure: Output voltage drift beyond specifications
Mitigation: Implement thermal isolation, use temperature-compensated designs, and ensure proper heat sinking

Trigger: Contamination during manufacturing
Failure: Increased noise and reduced stability
Mitigation: Follow cleanroom assembly procedures, use hermetic packaging for critical applications

Trigger: Electrical overstress from power surges
Failure: Permanent damage to semiconductor junctions
Mitigation: Implement input protection circuits, use voltage clamping devices, follow proper ESD handling protocols

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Voltage accuracy within ±0.1% of nominal value across specified temperature range

Test Method

IEEE 181-2011 for precision measurement, four-wire Kelvin measurement for voltage accuracy, temperature cycling tests per MIL-STD-883

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.

Manufacturers of Reference Core

Manufacturer profiles associated with Reference Core.

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Frequently Asked Questions

What is the primary function of a Reference Core in industrial equipment?

The Reference Core provides a stable and accurate voltage reference that ensures precise operation of measurement circuits, analog-to-digital converters, and control systems in industrial machinery.

How does temperature affect Reference Core performance?

High-quality Reference Cores use temperature compensation techniques (like bandgap design) to maintain stable output voltage across wide temperature ranges, typically with temperature coefficients below 10 ppm/°C.

Can Reference Cores be replaced with standard voltage regulators?

No, Reference Cores provide much higher accuracy and stability than standard regulators. They are designed specifically for precision applications where voltage accuracy directly impacts system performance.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

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.

Reference Core