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

Taiwan Semiconductor Corporation 2A02G R0G

Name: 2A02G R0G
Brand: Taiwan Semiconductor Corporation
SKU: 2A02G R0G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: 2A02G R0G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

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

Datasheet:: 2A02G R0G.pdf

Description:: DIODE GEN PURP 100V 2A DO204AC

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:8,051

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

Product details

Overview

2A02G from Taiwan Semiconductor is a 2 A, 100 V glass-passivated standard rectifier diode in DO-204AC (DO-15) package, featuring 1.1 V forward voltage at 2 A and 70 A non-repetitive surge current capability; used in DC-DC converters and switching-mode inverters.

For engineers reviewing the 2A02G datasheet, 2A02G pinout, 2A02G application, or 2A02G equivalent, key selection criteria include repetitive peak reverse voltage (100 V), forward current rating (2 A), thermal resistance (R_θJL = 25 °C/W), junction capacitance (15 pF), and AEC-Q101 qualification availability.

Technical Context

This device operates as a single-die, unidirectional silicon rectifier with cathode-band polarity indication and pure tin-plated leads compliant with J-STD-002 solderability. Its glass-passivated junction ensures stable performance under thermal cycling and humidity stress.

Designed for continuous conduction mode in medium-power SMPS, it supports ambient temperatures up to 75 °C at full rated current and derates linearly to zero at 150 °C junction temperature, with R_θJA = 60 °C/W enabling board-level thermal management without heatsinking in typical 2-layer PCB layouts.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	100 V - Maximum repetitive reverse voltage before breakdown; defines safe operating margin in 48 V bus-derived converters.
I_F	2 A - Continuous average forward current; supports output stages up to ~30 W in flyback or buck topologies.
I_FSM	70 A - Peak non-repetitive surge current (8.3 ms half-sine); withstands inrush and fault transients without failure.
V_F	1.1 V @ 2 A, 25 °C - Forward drop directly impacts conduction loss; yields ~2.2 W dissipation at full load.
R_θJL	25 °C/W - Junction-to-lead thermal resistance; enables direct thermal path to PCB copper pour for passive cooling.
C_J	15 pF @ 1 MHz, 4 V - Junction capacitance affects high-frequency switching noise and EMI filter design in >100 kHz converters.

Pinout & Package

Package: DO-204AC (DO-15), axial leaded, epoxy-molded case meeting UL 94V-0; cathode indicated by band; weight ≈ 0.400 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 1)	Forward current entry point	Connected to lower-potential side (e.g., transformer secondary center-tap or switch node return).
Cathode (Lead 2, banded end)	Forward current exit / reverse blocking terminal	Connected to output rail; band orientation must match PCB silkscreen for automated assembly verification.

Key Features

Feature	Design Value
Glass-passivated junction	Prevents moisture-induced leakage and surface degradation, extending lifetime in humid industrial environments.
RoHS & halogen-free compliance	Meets IEC 61249-2-21; eliminates brominated flame retardants for safer rework and end-of-life processing.
Junction temperature range –55 to +150 °C	Supports operation in automotive under-hood and industrial control cabinets without derating below –40 °C ambient.
Low R_θJL (25 °C/W)	Enables >1.5 W power dissipation with ≤37.5 °C rise above lead temperature-critical for compact, sealed enclosures.

Applications

DC–DC Converter Output Rectification	Switching Inverter Freewheeling Path
Use Scenario: Secondary-side rectification in isolated 24 V input, 5–12 V output flyback converters powering industrial sensors. IC Role / Device Role / Timing Role: Unidirectional current steering diode converting transformer AC output to regulated DC; no timing function. Use Value: 1.1 V V_F limits conduction loss to <2.5 W at 2 A, reducing heatsink requirements and improving efficiency over Schottky alternatives at 100 V rating.	Use Scenario: Freewheeling path across inductive loads (e.g., solenoid drivers or motor phase windings) in 48 V battery-powered inverters. IC Role / Device Role / Timing Role: Clamp-inductive kickback energy during MOSFET turn-off; operates in discontinuous conduction mode. Use Value: 70 A I_FSM safely absorbs 10× rated current surges during short-circuit events without bond-wire fusing.
General-Purpose AC/DC Bridge Input Stage	Automotive HVAC Blower Power Supply
Use Scenario: Single-diode element in discrete 4-diode bridge rectifiers for 120 VAC input, 12 VDC output wall adapters. IC Role / Device Role / Timing Role: Half-wave rectifier in cost-optimized, low-volume AC/DC supplies where integrated bridges are not economical. Use Value: DO-15 package allows manual or pick-and-place assembly; 100 V V_RRM provides 2× safety margin over 120 VAC peak (170 V).	Use Scenario: Main rectifier in 12 V battery-fed blower motor driver with PWM-controlled H-bridge. IC Role / Device Role / Timing Role: Reverse-polarity protection and supply filtering diode upstream of DC-DC controller IC. Use Value: AEC-Q101 qualified variants available; –55 to +150 °C T_J range accommodates under-dash temperature extremes without derating.

DC–DC Converter Output Rectification

Switching Inverter Freewheeling Path

Use Scenario: Secondary-side rectification in isolated 24 V input, 5–12 V output flyback converters powering industrial sensors.

IC Role / Device Role / Timing Role: Unidirectional current steering diode converting transformer AC output to regulated DC; no timing function.

Use Value: 1.1 V V_F limits conduction loss to <2.5 W at 2 A, reducing heatsink requirements and improving efficiency over Schottky alternatives at 100 V rating.

Use Scenario: Freewheeling path across inductive loads (e.g., solenoid drivers or motor phase windings) in 48 V battery-powered inverters.

IC Role / Device Role / Timing Role: Clamp-inductive kickback energy during MOSFET turn-off; operates in discontinuous conduction mode.

Use Value: 70 A I_FSM safely absorbs 10× rated current surges during short-circuit events without bond-wire fusing.

General-Purpose AC/DC Bridge Input Stage

Automotive HVAC Blower Power Supply

Use Scenario: Single-diode element in discrete 4-diode bridge rectifiers for 120 VAC input, 12 VDC output wall adapters.

IC Role / Device Role / Timing Role: Half-wave rectifier in cost-optimized, low-volume AC/DC supplies where integrated bridges are not economical.

Use Value: DO-15 package allows manual or pick-and-place assembly; 100 V V_RRM provides 2× safety margin over 120 VAC peak (170 V).

Use Scenario: Main rectifier in 12 V battery-fed blower motor driver with PWM-controlled H-bridge.

IC Role / Device Role / Timing Role: Reverse-polarity protection and supply filtering diode upstream of DC-DC controller IC.

Use Value: AEC-Q101 qualified variants available; –55 to +150 °C T_J range accommodates under-dash temperature extremes without derating.

Equivalent & Alternatives

The following parts are listed as comparable options for similar standard rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor MUR220	Ultrafast recovery (t_rr = 35 ns vs. 2A02G's unspecified but ≥500 ns); higher V_F (1.3 V); same I_F/V_RRM.	Preferred in PFC stages or high-frequency (>100 kHz) converters where reverse recovery loss dominates.	Select MUR220 only when t_rr-driven losses exceed conduction losses; otherwise 2A02G offers lower V_F and cost.
Vishay 1N4002	Lower surge rating (50 A vs. 70 A); higher V_F (1.2 V); same DO-41 package (not DO-15); no AEC-Q101 option.	Suitable for low-cost, non-automotive, <10 W linear supplies; lacks thermal robustness for sustained 2 A loads.	Choose 1N4002 only for legacy designs or cost-sensitive consumer products; avoid in thermally constrained or automotive contexts.

Compared with MUR220 and 1N4002, the 2A02G delivers optimal balance of low forward voltage, high surge tolerance, and AEC-Q101 readiness-making it preferred for industrial DC-DC and automotive auxiliary power where reliability and thermal margin are prioritized over ultrafast switching.

Availability

2A02G is available at Aetrix Electronics and suitable for DC–DC converters, switching inverters, and general-purpose rectification requiring stable component supply across automotive, industrial control, and power adapter programs.

Supply support for 2A02G 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

Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global industrial, automotive, and computing markets since 1979.

The 2A02G belongs to TSC's AEC-Q101-qualified standard rectifier family designed specifically for reliable, cost-effective AC/DC and DC/DC power conversion in harsh-environment applications.

FAQ

What is the maximum junction temperature rating for the 2A02G?

The 2A02G has a maximum junction temperature (T_J) of +150 °C and a minimum of –55 °C. This wide range supports operation in automotive under-hood environments and industrial enclosures without active cooling. The 2A02G maintains specified electrical parameters across this full range, with forward voltage and leakage current values tested at both extremes per datasheet conditions.

Does the 2A02G have AEC-Q101 qualification?

The base 2A02G is not AEC-Q101 qualified; however, the variant 2A02GH (with "H" suffix) is explicitly qualified per AEC-Q101 Rev D. This qualification covers stress testing including HTGB, HTRB, and temperature cycling, confirming suitability for automotive powertrain and body electronics. Always verify the full part number suffix when sourcing for automotive applications.

What is the forward voltage of the 2A02G at 2 A and 125 °C?

The datasheet specifies V_F = 1.1 V maximum at I_F = 2 A and T_J = 25 °C. At elevated junction temperature (125 °C), V_F decreases due to negative temperature coefficient of silicon-typical value is ~0.95 V. This reduction improves efficiency in thermally stressed operation but does not alter the 1.1 V max rating used for worst-case loss calculation.

Can the 2A02G replace a 1N4002 in an existing design?

Yes, the 2A02G can replace a 1N4002 in most cases: both are DO-15/DO-41 compatible axial diodes with 100 V V_RRM and 2 A I_F. However, the 2A02G offers superior surge rating (70 A vs. 50 A) and lower V_F (1.1 V vs. 1.2 V), improving reliability and efficiency. Verify mechanical fit-DO-15 and DO-41 leads differ slightly in diameter and spacing.

What is the junction-to-ambient thermal resistance (R_θJA) of the 2A02G?

The 2A02G has R_θJA = 60 °C/W under standard JEDEC test conditions (single-layer 1 in² copper pad). In real-world PCB layouts with 2 oz copper and thermal vias, actual R_θJA may improve to 40–50 °C/W. This value is critical for calculating junction temperature rise: T_J = T_A + (P_LOSS × R_θJA), where P_LOSS = I_F × V_F.

2A02G R0G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

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

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

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-204AC (DO-15)

Operating Temperature - Junction:: -55°C ~ 150°C

2A02G R0G FAQ

1.How can I place an order for 2A02G R0G through Aetrix?

Please submit a Request for Quotation (RFQ) for 2A02G R0G 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 2A02G R0G reliable?

The price and inventory of 2A02G R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2A02G R0G is usually 5 days.

3.What payment methods are accepted for 2A02G R0G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2A02G R0G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2A02G R0G?

2A02G R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2A02G R0G 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 2A02G R0G?

For technical support, including 2A02G R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2A02G R0G requirements.

6.How does Aetrix verify that 2A02G R0G is sourced from the original manufacturer or authorized distributors?

All 2A02G R0G 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 2A02G R0G meets industry standards.

7.What is the process for return or replacement of 2A02G R0G?

All 2A02G R0G units undergo pre-shipment inspection (PSI). If there is an issue with 2A02G R0G, 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 2A02G R0G part is unused and in its original packaging.

Return procedure for 2A02G R0G:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…