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Diodes Incorporated 2A03-T
- Part No.:
- 2A03-T
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
2A03-T.pdf
- Description:
- DIODE GEN PURP 200V 2A DO15
- Quantity:
- Payment:
- Shipping:
Inventory:4,433
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Product details
Overview
2A03-T from Diodes Incorporated is a 2.0A, 200V peak repetitive reverse voltage general-purpose silicon rectifier diode in DO-15 package, featuring 1.1V forward voltage at 2.0A, 70A non-repetitive surge capability, and 5.0μA reverse leakage at 25°C - used in AC/DC front-end rectification for industrial power supplies and LED drivers.
For engineers reviewing the 2A03-T datasheet, 2A03-T pinout, 2A03-T application, or 2A03-T equivalent, key selection criteria include VRRM rating margin, thermal resistance (60°C/W), surge robustness (70A IFSM), and DO-15 mechanical compatibility with automated through-hole assembly.
Technical Context
This axial-lead rectifier operates in single-phase, half-wave configurations with resistive or inductive loads at 60Hz. Its diffused junction enables stable performance across –65°C to +150°C junction temperature range and supports derated operation up to 150°C ambient when leads are maintained at 9.5mm from case.
Capacitance is tightly controlled at 15pF (measured at 1MHz, 4V reverse bias), minimizing high-frequency switching noise coupling. Thermal resistance of 60°C/W (junction-to-ambient, with 9.5mm lead length) defines its power dissipation limit under natural convection cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum peak reverse voltage the diode blocks without breakdown; sets minimum insulation margin for 120VAC input designs. |
| IO @ TA=55°C | 2.0 A - Average forward current rating at 55°C ambient; requires heatsinking or airflow above this temperature per Fig.1 derating curve. |
| VFM @ IF=2.0A | 1.1 V - Forward voltage drop at rated DC load; determines conduction loss (2.2W max at 2A) and thermal design baseline. |
| IFSM | 70 A - Non-repetitive surge current capacity for 8.3ms half-sine; withstands inrush into capacitive inputs without failure. |
| RθJA | 60 °C/W - Junction-to-ambient thermal resistance with 9.5mm lead length; defines temperature rise per watt dissipated in still air. |
| IRM @ 25°C | 5.0 μA - Reverse leakage at full DC blocking voltage; ensures low standby power loss in high-impedance bias networks. |
Pinout & Package
Package: DO-15 molded plastic case (UL 94V-0), axial-leaded, cathode indicated by band. Weight ≈ 0.4 g. Moisture sensitivity Level 1 (J-STD-020C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to AC source or transformer secondary; must handle full surge current path without trace fusing. |
| Cathode (Lead 2, banded end) | Forward current exit / reverse voltage reference | Connected to output capacitor or load return; polarity marking critical for PCB layout and assembly verification. |
Key Features
| Feature | Design Value |
|---|---|
| Diffused junction construction | Enables stable reverse recovery and long-term reliability under repeated thermal cycling in industrial environments. |
| 70A IFSM surge rating | Supports direct connection to unfiltered AC lines without external NTC or inrush limiters in cost-sensitive power supplies. |
| RoHS-compliant bright tin terminals | Ensures consistent solderability per MIL-STD-202 Method 208 and compatibility with lead-free reflow or wave processes. |
| 15pF typical capacitance | Minimizes EMI generation during commutation in offline SMPS pre-regulators and reduces snubber component count. |
Applications
| Industrial AC/DC Power Supply | LED Driver Input Stage |
|---|---|
Use Scenario: Rectifying 120VAC mains input before bulk capacitor in open-frame 15–30W industrial power supplies. IC Role / Device Role / Timing Role: Primary rectifier converting AC to pulsating DC; not timing-critical but thermally dominant device. Use Value: 200V VRRM provides 2× safety margin over 120VAC peak (170V); 60°C/W RθJA allows compact board layout with minimal copper area. |
Use Scenario: Bridge or single-diode rectification in constant-current LED drivers for street lighting and signage. IC Role / Device Role / Timing Role: Input-stage discrete rectifier; handles line-frequency conduction only, no switching function. Use Value: 1.1V VFM limits conduction loss to ≤2.2W at 2A, reducing thermal stress on aluminum PCB substrates. |
| Appliance Motor Control Board | UPS Input Protection Circuit |
Use Scenario: Half-wave rectification for auxiliary 12V logic supply in washing machine or HVAC control boards. IC Role / Device Role / Timing Role: Low-cost, high-reliability AC input protection and conversion; mounted near transformer. Use Value: DO-15 package fits standard through-hole footprints; 70A IFSM survives motor startup surges without degradation. |
Use Scenario: Input rectification stage in line-interactive UPS units where transient immunity and longevity are critical. IC Role / Device Role / Timing Role: Front-end rectifier subjected to frequent brownouts and grid transients. Use Value: 5.0μA IRM at 25°C ensures negligible standby drain; –65°C to +150°C rating supports extended field life in unventilated enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar general-purpose rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MUR220 | Ultrafast recovery (trr = 35ns vs. ~2μs for 2A03-T), higher VRRM (200V same), lower VFM (0.95V), higher cost. | Better suited for high-frequency flyback snubbers or PFC stages where reverse recovery loss matters. | Select when operating >20kHz or minimizing EMI; avoid if only handling 50/60Hz line frequency. |
| Vishay 1N4003 | Same VRRM (200V), same DO-41 package (not DO-15), lower IFSM (50A), higher VFM (1.1V typical), legacy process. | Compatible footprint with minor lead spacing adjustment; lower surge margin may require upstream fuse review. | Acceptable for low-risk consumer-grade designs; verify mechanical fit and I²t coordination with protection devices. |
Compared with MUR220 and 1N4003, the 2A03-T delivers optimal balance of surge robustness, thermal performance, and cost for 50/60Hz industrial rectification - where ultrafast recovery is unnecessary and DO-15 mechanical compliance is required.
Availability
2A03-T is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, LED driver input stages, and appliance motor control boards requiring stable component supply and long-lifecycle support.
Supply support for 2A03-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 and manufacturing operations across Asia and the Americas.
The 2A01–2A07 series targets cost-effective, high-reliability rectification in industrial, commercial, and consumer power conversion - emphasizing ruggedness, RoHS compliance, and broad voltage coverage from 50V to 1000V.
FAQ
Is 2A03-T suitable for capacitive-input filter applications?
No - the datasheet explicitly states that current must be derated by 20% for capacitive loads due to increased peak current stress. For such applications, use a higher IFSM-rated part like 2A04-T (400V) or add an inrush limiter. The 2A03-T is optimized for resistive or inductive loads per its 60Hz half-wave rating.
What is the maximum allowable PCB trace width for 2A03-T anode connection at 2.0A continuous?
At 2.0A DC with 20°C temperature rise, a 10-mil (0.25mm) wide internal PCB trace (1 oz copper) requires ≥100 mils (2.5mm) length to stay within safe current density. External traces should be ≥20 mils wide and ≥150 mils long; thermal relief to copper pour is recommended to manage 60°C/W RθJA.
Does 2A03-T have a specified reverse recovery time (trr)?
No - the datasheet does not specify trr, confirming it is a standard recovery (not fast or ultrafast) rectifier. Typical trr exceeds 1μs, making it unsuitable for high-frequency switching nodes. It is intended solely for line-frequency (50/60Hz) rectification where recovery loss is negligible.
Can 2A03-T replace 1N4003 in existing designs?
Yes, with mechanical verification: both are 200V, 2A rectifiers, but 2A03-T uses DO-15 (longer body, wider lead spacing) versus 1N4003's DO-41. Lead pitch differs (5.3mm vs. 5.0mm), and 2A03-T offers higher IFSM (70A vs. 50A). Confirm board hole spacing and thermal pad clearance before substitution.
2A03-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):
- 200 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 @ 200 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
2A03-T FAQ
1.How can I place an order for 2A03-T through Aetrix?
Please submit a Request for Quotation (RFQ) for 2A03-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 2A03-T reliable?
The price and inventory of 2A03-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2A03-T is usually 5 days.
3.What payment methods are accepted for 2A03-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2A03-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 2A03-T?
2A03-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 2A03-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 2A03-T?
For technical support, including 2A03-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2A03-T requirements.
6.How does Aetrix verify that 2A03-T is sourced from the original manufacturer or authorized distributors?
All 2A03-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 2A03-T meets industry standards.
7.What is the process for return or replacement of 2A03-T?
All 2A03-T units undergo pre-shipment inspection (PSI). If there is an issue with 2A03-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 2A03-T part is unused and in its original packaging.
Return procedure for 2A03-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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