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Diodes Incorporated 2A04-T
- Part No.:
- 2A04-T
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
2A04-T.pdf
- Description:
- DIODE GEN PURP 400V 2A DO15
- Quantity:
- Payment:
- Shipping:
Inventory:4,903
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Product details
Overview
2A04-T from Diodes Incorporated is a 400 V peak repetitive reverse voltage, 2.0 A average forward rectified current general-purpose silicon rectifier diode in DO-15 package with diffused junction, 1.1 V forward voltage at 2.0 A, and 70 A non-repetitive surge capability - used in AC/DC input stage of offline power supplies for industrial control modules.
For engineers reviewing the 2A04-T datasheet, 2A04-T pinout, 2A04-T application, or 2A04-T equivalent, key selection criteria include VRRM derating for capacitive loads, thermal resistance (60 °C/W), IFSM robustness for inrush-limited designs, and DO-15 mechanical compatibility with legacy through-hole layouts.
Technical Context
This device operates as a single-phase, half-wave rectifier under 60 Hz resistive or inductive loads. Its diffused junction enables stable reverse recovery behavior and low leakage (5.0 μA @ 25°C, 50 μA @ 100°C) across its -65°C to +150°C operating range.
Thermal performance is defined with leads held at ambient at 9.5 mm from case (RθJA = 60 °C/W); forward current must be derated above 55°C ambient per Fig. 1, and capacitive loads require 20% IO derating per datasheet note.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum peak reverse voltage before breakdown; sets minimum insulation margin for 230 VAC input designs. |
| IO @ TA=55°C | 2.0 A - Continuous DC output current capability at 55°C ambient; requires heatsinking or airflow above this temperature. |
| VFM @ IF=2.0A | 1.1 V - Forward conduction loss at rated current; contributes ~2.2 W dissipation in worst-case steady state. |
| IFSM | 70 A - Single half-sine surge rating (8.3 ms); withstands typical AC line inrush without failure. |
| RθJA | 60 °C/W - Junction-to-ambient thermal resistance with 9.5 mm lead length; defines temperature rise under given power dissipation. |
| CT @ 1 MHz | 15 pF - Junction capacitance at 4 V reverse bias; impacts EMI filtering design and high-frequency switching noise coupling. |
Pinout & Package
DO-15 molded plastic package (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 | AC input connection point | Accepts alternating input; polarity determines conduction direction during positive half-cycle. |
| Cathode | DC output connection point | Delivers rectified unidirectional current; marked with band for orientation during PCB placement. |
Key Features
| Feature | Design Value |
|---|---|
| Diffused junction construction | Enables consistent reverse leakage and rugged surge tolerance across temperature extremes. |
| 70 A non-repetitive surge rating | Supports reliable operation during cold-start inrush events in transformer-coupled or capacitor-input supplies. |
| RoHS-compliant bright tin terminals | Ensures solderability per MIL-STD-202 Method 208 and compatibility with lead-free reflow profiles. |
| 60 °C/W thermal resistance | Allows direct mounting on standard FR-4 PCBs without dedicated copper pour when ambient ≤ 55°C. |
Applications
| Industrial AC/DC Power Supply | LED Driver Input Stage |
|---|---|
Use Scenario: Rectifying 120/230 VAC mains input in DIN-rail mounted PLC power modules. IC Role / Device Role / Timing Role: General-purpose rectifier diode performing half-wave or full-wave bridge function. Use Value: 400 V VRRM provides 2× safety margin over 230 VAC peak (325 V), enabling robust long-term reliability. | Use Scenario: Input rectification in isolated LED drivers for streetlight controllers. IC Role / Device Role / Timing Role: Primary-side rectifier converting AC line to bulk DC prior to flyback conversion. Use Value: 70 A IFSM handles repeated cold-start surges from large input X-capacitors without degradation. |
| Consumer Appliance Power Input | DC Motor Control Board |
Use Scenario: Mains rectification in washing machine mainboard power section. IC Role / Device Role / Timing Role: Discrete rectifier in bridge configuration supplying unregulated DC bus. Use Value: DO-15 package fits legacy through-hole footprints; 1.1 V VFM limits conduction loss in cost-sensitive designs. | Use Scenario: Reverse-polarity protection and freewheeling path in brushed DC motor H-bridge driver boards. IC Role / Device Role / Timing Role: Freewheeling diode clamping inductive kickback during PWM switching. Use Value: 15 pF CT minimizes capacitive coupling into gate drive signals, reducing false triggering risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar general-purpose rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GBU4K | 400 V VRRM, 4 A IO, GBU package (larger footprint, higher thermal mass) | Higher current handling; suited for higher-power supplies with forced air cooling | Select when >2 A continuous current or improved thermal margin is required. |
| 1N4004 | 400 V VRRM, 1 A IO, DO-41 package, higher VFM (~1.2 V) | Lower current rating and inferior surge capability (30 A IFSM) | Acceptable only for low-duty-cycle or low-power applications where 2 A rating is not fully utilized. |
Compared with GBU4K and 1N4004, the 2A04-T delivers optimal balance of 2 A capacity, 70 A surge robustness, and DO-15 footprint compatibility - making it ideal for space-constrained industrial power supplies requiring proven reliability at moderate load levels.
Availability
2A04-T is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, LED driver input stages, and consumer appliance power inputs requiring stable component supply and long-term manufacturability assurance.
Supply support for 2A04-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, specializing in high-reliability power management, signal integrity, and protection solutions.
The 2A01–2A07 series targets cost-effective, high-volume rectification needs in industrial, consumer, and computing power systems - emphasizing ruggedness, RoHS compliance, and legacy package compatibility.
FAQ
Is 2A04-T suitable for use in a full-wave bridge configuration?
Yes - the 2A04-T is commonly used as one quadrant in discrete full-wave bridge rectifiers. Its 400 V VRRM and 2.0 A IO rating meet standard requirements for 230 VAC input bridges. Ensure proper thermal layout and matching diode parameters across all four devices for balanced current sharing.
What is the maximum allowable ambient temperature for continuous 2.0 A operation?
The datasheet specifies 2.0 A IO at TA = 55°C. Above this, forward current must be linearly derated per Fig. 1 - reaching zero at ~175°C. For sustained 2.0 A operation, ambient must remain ≤55°C with leads maintained at ambient at 9.5 mm from case per test condition.
Does 2A04-T have a specified reverse recovery time (trr)?
No - the DS29008 datasheet does not specify trr. The device uses a diffused junction optimized for general-purpose rectification, not fast switching. It is not recommended for high-frequency (>10 kHz) or snubberless SMPS applications where controlled reverse recovery is critical.
Can 2A04-T replace 1N4004 in existing designs?
Yes - both share 400 V VRRM and DO-style packages (DO-15 vs DO-41), but 2A04-T offers 2× higher current rating (2.0 A vs 1.0 A) and 2.3× higher surge capability (70 A vs 30 A). Mechanical fit requires verification due to slight dimensional differences between DO-15 and DO-41 body sizes.
2A04-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):
- 400 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 @ 400 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
2A04-T FAQ
1.How can I place an order for 2A04-T through Aetrix?
Please submit a Request for Quotation (RFQ) for 2A04-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 2A04-T reliable?
The price and inventory of 2A04-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2A04-T is usually 5 days.
3.What payment methods are accepted for 2A04-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2A04-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 2A04-T?
2A04-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 2A04-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 2A04-T?
For technical support, including 2A04-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2A04-T requirements.
6.How does Aetrix verify that 2A04-T is sourced from the original manufacturer or authorized distributors?
All 2A04-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 2A04-T meets industry standards.
7.What is the process for return or replacement of 2A04-T?
All 2A04-T units undergo pre-shipment inspection (PSI). If there is an issue with 2A04-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 2A04-T part is unused and in its original packaging.
Return procedure for 2A04-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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