Diodes Incorporated RL206-T

Overview

RL206-T from Diodes Incorporated is a 2.0A, 800V general-purpose silicon rectifier diode in DO-15 package, designed for AC/DC conversion in power supplies and input stage rectification. It delivers 1.0V max forward voltage at 2.0A DC, supports 70A non-repetitive surge current, and operates from –65°C to +150°C ambient.

For engineers reviewing the RL206-T datasheet, RL206-T pinout, RL206-T application, or RL206-T equivalent, key selection criteria include peak reverse voltage rating (800V), thermal resistance (40°C/W), junction capacitance (40pF @ 4V), and compliance with UL 94V-0 flammability standard for safety-critical power designs.

Technical Context

This axial-lead rectifier operates in single-phase, half-wave configurations at 60Hz with resistive or inductive loads. Its low forward voltage drop reduces conduction losses, while its 40°C/W junction-to-case thermal resistance enables reliable operation under sustained 2.0A average forward current at 50°C ambient with 9.5mm lead length.

The device exhibits 5.0mA max DC reverse current at 25°C and rated blocking voltage, rising to 50mA at 125°C - a critical parameter for high-temperature industrial power supplies. Junction capacitance of 40pF (measured at 1.0MHz, 4.0V reverse bias) influences high-frequency switching behavior in EMI-sensitive applications.

Key Specifications

Pinout & Package

DO-15 molded plastic package with axial leads; cathode identified by color band. Approximate weight: 0.4 g. Mounting position unrestricted.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar general-purpose rectifier applications.

Compared with RL206-T, 2A06G trades through-hole reliability and thermal performance for SMT compatibility, while RS2M omits UL 94V-0 compliance and adds 0.15V forward drop - making RL206-T preferable for safety-certified, thermally constrained, or repairable through-hole designs.

Availability

RL206-T is available at Aetrix Electronics and suitable for AC-DC power adapters, industrial motor drive input stages, and LED driver input rectification requiring stable component supply and long-term BOM continuity.

Supply support for RL206-T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, serving industrial, computing, consumer, and communications markets.

The RL series belongs to Diodes' general-purpose rectifier product line, engineered for cost-effective, high-reliability AC/DC conversion in legacy and maintenance-critical power systems.

FAQ

Is RL206-T still recommended for new designs?

No. Diodes Incorporated explicitly marks RL206-T as "DISCONTINUED, NOT RECOMMENDED FOR NEW DESIGNS" in DS28005 Rev. 7. The 2A01G–2A07G series is designated as the replacement family, offering improved surge ratings, tighter VF distribution, and RoHS-compliant packaging. RL206-T remains supported for existing production and repair.

What is the maximum allowable lead temperature during soldering?

RL206-T leads are specified as solderable per MIL-STD-202, Method 208. This requires peak soldering temperature ≤ 260°C for ≤ 10 seconds. Exceeding this risks internal bond wire damage or encapsulant delamination, especially given its DO-15 plastic body's thermal mass limitations.

Can RL206-T be used in full-wave bridge configurations?

Yes - RL206-T is commonly used as one leg in discrete full-wave bridge rectifiers. Four units can form a 2A, 800V bridge. However, ensure matched VF and thermal layout across all four devices to prevent current imbalance; paralleling beyond two devices is not recommended without individual current-sharing resistors.

How does RL206-T's 40pF junction capacitance affect EMI performance?

At 40pF, RL206-T contributes measurable common-mode noise coupling during fast voltage transitions. In switch-mode power supplies, this capacitance interacts with stray inductance to generate high-frequency ringing (typically 10–30MHz), requiring careful snubber design or ferrite bead placement on AC input lines to meet CISPR-22/32 conducted EMI limits.