Rectifier Diode: Reverse Voltage (Vr) 50V to 1000V

Q: What is the main function of a rectifier diode in a detector?

It converts alternating current (AC) to direct current (DC) to power the detector's electronic circuits and enable signal processing.

Q: How do I select a rectifier diode for a detector application?

Consider the forward current rating, reverse voltage tolerance, switching speed, and operating temperature based on the detector's power requirements and environmental conditions.

Q: Can rectifier diodes be used in high-frequency detector circuits?

Yes, but select diodes with fast reverse recovery times (e.g., Schottky diodes) to minimize switching losses and ensure efficient operation at high frequencies.

Component Specifications

Definition

A rectifier diode is a semiconductor device with a P-N junction designed specifically for converting alternating current (AC) to pulsating direct current (DC) through unidirectional current flow. In detector applications, it serves as a critical component for signal demodulation, power supply rectification, and voltage regulation, ensuring stable DC output for sensitive electronic circuits. These diodes are characterized by their ability to handle specific forward currents, reverse voltages, and switching speeds optimized for detection systems.

Working Principle

The rectifier diode operates on the principle of unidirectional current flow due to its P-N junction. When forward-biased (positive voltage applied to the anode relative to the cathode), it allows current to pass with minimal resistance. When reverse-biased, it blocks current flow up to its breakdown voltage. In AC circuits, this property converts bidirectional AC into unidirectional DC by permitting current only during the positive half-cycles, with full-wave rectifiers using bridge configurations to utilize both half-cycles.

Materials

Typically made from semiconductor materials such as silicon (Si) for general-purpose applications or silicon carbide (SiC) for high-temperature/high-frequency uses. The P-N junction is formed by doping silicon with elements like boron (P-type) and phosphorus (N-type). Encapsulation materials include epoxy resin, plastic, or ceramic for insulation and protection.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Package Type	DO-41, DO-15, SMD
Forward Current (If)	1A to 10A
Reverse Voltage (Vr)	50V to 1000V
Operating Temperature	-55°C to 150°C
Forward Voltage Drop (Vf)	0.7V to 1.2V
Reverse Recovery Time (Trr)	50ns to 500ns

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

Standards

DIN 41773, IEC 60747

Parent Products

This component is used in the following industrial products

Detector

A component within an Automatic Gain Control (AGC) system that measures the amplitude or power level of an input signal.

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Engineering Analysis

Risks & Mitigation

Overheating due to excessive forward current
Reverse voltage breakdown causing permanent damage
Poor soldering leading to connection failures
Environmental contamination affecting performance

FMEA Triads

Trigger: Exceeding maximum forward current rating
Failure: Thermal runaway and diode burnout
Mitigation: Implement current-limiting circuits and heat sinks; use diodes with higher current ratings

Trigger: Voltage spikes exceeding reverse voltage rating
Failure: P-N junction breakdown and short circuit
Mitigation: Add transient voltage suppressors (TVS) or snubber circuits; select diodes with higher Vr ratings

Trigger: High ambient temperature
Failure: Increased leakage current and reduced efficiency
Mitigation: Ensure proper ventilation; use diodes rated for higher temperatures (e.g., SiC diodes)

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Forward voltage tolerance ±10%, reverse leakage current < 10µA at rated voltage

Test Method

IEC 60747-1 for semiconductor devices, including forward/reverse bias testing, thermal cycling, and environmental stress screening

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 Rectifier Diode

10 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Anshan Suly Electronics Co. Ltd.

Anshan, Liaoning, CN

Also makes: Rectifier Assembly, Rectifier Bridge