Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Diodes Incorporated 2A02-T

Name: 2A02-T
Brand: Diodes Incorporated
SKU: 2A02-T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: 2A02-T

Manufacturer:: Diodes Incorporated

Category:: Single Diodes

Package:: DO-204AC, DO-15, Axial

Datasheet:: 2A02-T.pdf

Description:: DIODE GEN PURP 100V 2A DO15

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:7,754

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

2A02-T from Diodes Incorporated is a 2.0A, 100V peak repetitive reverse voltage (V_RRM) general-purpose silicon rectifier diode in DO-15 package, featuring low forward voltage drop (1.1V @ 2.0A), 70A non-repetitive surge capability, and RoHS-compliant bright tin terminals. It serves as a primary AC-to-DC conversion element in offline power supplies, adapter front-ends, and industrial control power stages.

For engineers reviewing the 2A02-T datasheet, 2A02-T pinout, 2A02-T application, or 2A02-T equivalent, key selection criteria include its 100V blocking rating, thermal resistance (60°C/W), 15pF junction capacitance at 4V, 5μA reverse leakage at 25°C, and DO-15 mechanical compatibility with standard through-hole PCB layouts.

Technical Context

This device implements a diffused-junction silicon PN structure optimized for high-current half-wave rectification under 60Hz line-frequency operation. Its 70A I_FSM rating supports transient overload conditions without fusing, while the 60°C/W R_θJA enables reliable operation up to 150°C junction temperature when mounted with 9.5mm lead length.

The 1.1V V_FM at 2.0A ensures low conduction loss in cost-sensitive power conversion stages, and the 15pF typical junction capacitance minimizes switching noise in low-frequency applications-no high-speed or soft-recovery functionality is specified or implied.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	100 V - Maximum peak reverse voltage the diode blocks reliably in repetitive AC line applications
I_O	2.0 A - Average forward current rating at 55°C ambient, derated linearly above that temperature
V_FM	1.1 V @ 2.0A - Forward voltage drop determining conduction loss and thermal load in rectifier stage
I_FSM	70 A - Single half-sine surge current capability supporting inrush and fault transients
R_θJA	60 °C/W - Thermal resistance from junction to ambient, defining heatsinking requirements for continuous operation
C_T	15 pF @ 1MHz, 4V - Junction capacitance affecting EMI and high-frequency behavior in low-speed rectification
I_RM	5.0 μA @ 25°C - Reverse leakage current influencing standby power and voltage hold-up in capacitive-input filters

Pinout & Package

DO-15 molded plastic package with axial leads; cathode identified by band marking; weight ≈ 0.4 g; UL 94V-0 flammability rating; moisture sensitivity level 1.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to AC source or transformer secondary; must withstand full surge current and reverse recovery stress
Cathode	Forward current exit point	Connected to output capacitor or load; marked with band; carries full DC output current

Key Features

Feature	Design Value
Diffused junction construction	Enables robust surge handling and stable long-term reverse leakage performance across temperature
70A non-repetitive surge rating	Supports cold-start inrush and short-circuit transients without catastrophic failure
1.1V forward voltage at rated current	Reduces power dissipation to ~2.2W at 2.0A, easing thermal management in compact adapters
DO-15 package with 9.5mm lead length	Provides standardized mounting and thermal path for manual or wave soldering in legacy power designs

Applications

AC/DC Wall Adapters

Industrial Control Power Supplies

Use Scenario: Rectifying 50/60Hz transformer output in Class II isolated AC/DC adapters delivering 5–24V DC.

IC Role / Device Role / Timing Role: Primary unidirectional current path converting AC input to pulsating DC before filtering.

Use Value: 100V V_RRM safely handles 115VAC line peaks with margin; 2.0A rating supports up to 15W output power.

Use Scenario: Providing auxiliary DC bias for PLC I/O modules, relay drivers, and sensor interface circuitry.

IC Role / Device Role / Timing Role: Off-line rectifier in non-isolated or auto-transformer-fed auxiliary rails.

Use Value: 70A I_FSM tolerates motor startup surges and solenoid coil turn-off spikes without degradation.

LED Driver Input Stage

Appliance Power Entry Module

Use Scenario: Half-wave rectification in low-cost constant-current LED drivers for residential lighting.

IC Role / Device Role / Timing Role: Input-stage diode feeding capacitor-input filter and buck converter IC.

Use Value: 1.1V V_FM limits conduction loss to <2.5W, reducing thermal stress on PCB near heat-sensitive LEDs.

Use Scenario: Main rectifier in white goods (refrigerators, washing machines) power entry boards.

IC Role / Device Role / Timing Role: First-stage AC line rectifier before PFC or linear regulator.

Use Value: DO-15 mechanical compatibility allows direct replacement of legacy rectifiers; RoHS compliance meets regional regulatory mandates.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
1N4002-T	Same 100V V_RRM, but lower 50A I_FSM and higher 1.2V V_FM	Less robust against surge events; higher conduction loss increases thermal load	Acceptable where surge risk is low and thermal headroom exists
ES1B	100V V_RRM, 1A I_O, 30A I_FSM, SMA package, faster recovery (~50ns)	Lower current rating and surface-mount format limit use in high-power through-hole designs	Suitable only for space-constrained, lower-current, or higher-frequency auxiliary rails

Compared with 1N4002-T and ES1B, the 2A02-T delivers superior surge resilience and lower forward loss in 2.0A through-hole rectifier roles-making it preferred for industrial and adapter applications demanding reliability at full rated current.

Availability

2A02-T is available at Aetrix Electronics and suitable for AC/DC wall adapters, industrial control power supplies, and appliance power entry modules requiring stable component supply and long-lifecycle support.

Supply support for 2A02-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, with design, manufacturing, and sales operations across Asia, Europe, and North America.

The 2A01–2A07 series targets cost-effective, high-reliability line-frequency rectification in consumer, industrial, and computing power systems-emphasizing surge tolerance, thermal stability, and regulatory compliance.

FAQ

Is 2A02-T suitable for high-frequency switching applications?

No. The 2A02-T is a general-purpose rectifier with no specified reverse recovery time or soft-recovery characteristics. Its 15pF junction capacitance and diffused-junction construction are optimized for 50/60Hz operation-not for PWM or SMPS switching frequencies above 20kHz. Use fast or ultrafast recovery diodes for such applications.

What is the maximum operating temperature for continuous 2.0A current?

At 2.0A average forward current, the junction temperature must remain ≤150°C. With R_θJA = 60°C/W and V_FM ≈ 1.1V, power dissipation is ~2.2W. Ambient temperature must therefore be ≤150°C − (2.2W × 60°C/W) = 17.8°C for safe continuous operation-derating is required above this ambient.

Does 2A02-T have a specified reverse recovery time (t_rr)?

No. The datasheet does not specify reverse recovery time, t_rr, or related parameters such as Q_rr or softness factor. This confirms its classification as a standard recovery rectifier intended for line-frequency use-not for high-speed switching or snubberless designs.

Can 2A02-T replace 1N4002 in existing designs?

Yes-mechanically and electrically compatible in DO-15 footprint with identical 100V rating-but offers higher 70A surge rating and lower 1.1V forward drop versus 1.2V for 1N4002. No layout change needed; improved thermal and surge performance provides design margin in legacy 1N4002-based products.

2A02-T Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: DO-204AC, DO-15, Axial

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 100 V

Current - Average Rectified (Io):: 2A

Voltage - Forward (Vf) (Max) @ If:: 1.1 V @ 2 A

Speed:: Standard Recovery >500ns, > 200mA (Io)

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 5 µA @ 100 V

Capacitance @ Vr, F:: 15pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-15

Operating Temperature - Junction:: -65°C ~ 150°C

2A02-T FAQ

1.How can I place an order for 2A02-T through Aetrix?

Please submit a Request for Quotation (RFQ) for 2A02-T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for 2A02-T reliable?

The price and inventory of 2A02-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2A02-T is usually 5 days.

3.What payment methods are accepted for 2A02-T?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2A02-T transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2A02-T?

2A02-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2A02-T order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for 2A02-T?

For technical support, including 2A02-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2A02-T requirements.

6.How does Aetrix verify that 2A02-T is sourced from the original manufacturer or authorized distributors?

All 2A02-T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 2A02-T meets industry standards.

7.What is the process for return or replacement of 2A02-T?

All 2A02-T units undergo pre-shipment inspection (PSI). If there is an issue with 2A02-T, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The 2A02-T part is unused and in its original packaging.

Return procedure for 2A02-T:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…

2026-08-11 LDO Regulator: Dropout Voltage, Noise, PSRR and Power Dissipation

LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…

2026-08-06 Conditional Access Module: CAM, CI/CI+ and DVB Security

Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…

2026-08-03 Electronic Component Obsolescence: EOL Risks, Replacement Options and Last-Time Buy Strategy

Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.

2026-07-29 18650 Battery: Voltage, Capacity, Charging and Pack Design

18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…

2026-07-27 Hall Effect Sensor: Working Principle, Types, Circuits and Applications

Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…

2026-07-20 Product Change Notification (PCN) in Electronic Components: Meaning and Supply Chain Response

Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…

2026-07-19 Blend Door Actuator: Symptoms, Location, Reset and Replacement Guide

A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…