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Diodes Incorporated PR2001-T
- Part No.:
- PR2001-T
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
PR2001-T.pdf
- Description:
- DIODE GEN PURP 50V 2A DO15
- Quantity:
- Payment:
- Shipping:
Inventory:4,786
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Product details
Overview
PR2001-T from Diodes Incorporated is a 2.0A fast recovery rectifier diode in DO-15 package, rated for 50V peak repetitive reverse voltage and 1.2V forward voltage at 2.0A, with 150ns reverse recovery time and 5.0μA reverse leakage at 25°C - used in AC/DC input stage rectification for offline power supplies.
For engineers reviewing the PR2001-T datasheet, PR2001-T pinout, PR2001-T application, or PR2001-T equivalent, key selection criteria include VRRM=50V, IF(AV)=2.0A @ TA=50°C, trr=150ns, IRM=5.0μA, and DO-15 mechanical compatibility in compact flyback and buck-derived SMPS designs.
Technical Context
This device employs a diffused junction structure to achieve fast switching performance with low conduction loss and controlled reverse recovery behavior. Its 150ns trr and 1.2V VFM at 2.0A support high-frequency operation up to 100kHz in discontinuous conduction mode (DCM) converters.
The DO-15 package provides robust thermal resistance (RθJA = 50°C/W) and meets UL 94V-0 flammability rating. Polarity is marked by cathode band; terminals are tin-plated for MIL-STD-202 solderability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum non-repetitive reverse voltage the diode blocks without breakdown in AC line applications. |
| IF(AV) | 2.0 A @ TA = 50°C - Continuous average forward current capability under defined heatsinking conditions. |
| VFM | 1.2 V @ IF = 2.0A - Forward conduction loss directly impacting efficiency and thermal rise in rectifier stage. |
| trr | 150 ns - Reverse recovery time determining switching loss and EMI generation in high-frequency SMPS. |
| IRM | 5.0 μA @ 25°C - Low leakage ensures minimal standby power loss in no-load or light-load conditions. |
| RθJA | 50 °C/W - Junction-to-ambient thermal resistance defining required PCB copper area for thermal management. |
Pinout & Package
DO-15 axial-leaded plastic package with cathode band marking; two-terminal device (anode and cathode), lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to AC source or transformer secondary; must withstand surge currents up to 50A (8.3ms half-sine). |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; connects to output capacitor or DC bus; holds off 50V reverse potential during off-state. |
Key Features
| Feature | Design Value |
|---|---|
| Diffused junction construction | Enables controlled carrier lifetime for consistent 150ns trr and low Qrr across temperature and production lots. |
| 50A non-repetitive surge rating | Withstands inrush and transient overloads common in universal-input AC/DC adapters without failure. |
| UL 94V-0 molded plastic case | Ensures flame-retardant enclosure compliance for Class II isolated power supplies meeting IEC 62368-1. |
| Tin-plated leads | Guarantees reliable solder wetting and intermetallic formation per MIL-STD-202 Method 208. |
Applications
| AC/DC Adapter Input Rectification | USB Charger Secondary-Side Rectification |
|---|---|
Use Scenario: 5V/2A wall adapter with universal AC input (90–264VAC) using DCM flyback topology. IC Role / Device Role / Timing Role: Primary-side fast recovery rectifier converting transformer secondary AC to pulsating DC before bulk capacitor. Use Value: 150ns trr minimizes switching loss and EMI; 2.0A rating supports full-load operation with margin at 50°C ambient. | Use Scenario: Low-cost USB-A charger with integrated controller and discrete secondary-side rectification. IC Role / Device Role / Timing Role: Output rectifier delivering regulated 5V to USB port; operates at ~65kHz with light-load burst mode. Use Value: 5.0μA IRM reduces no-load power consumption below 30mW; DO-15 footprint enables cost-effective through-hole assembly. |
| Industrial Control Power Supply | LED Driver Auxiliary Supply |
Use Scenario: 24V auxiliary supply for PLC I/O modules, powered from 110VAC control rail. IC Role / Device Role / Timing Role: Half-wave rectifier feeding linear regulator or buck converter; subjected to frequent on/off cycling. Use Value: 50A IFSM rating handles repeated cold-start surges; -65°C to +150°C operating range ensures reliability in uncontrolled enclosures. | Use Scenario: Constant-current LED driver with isolated flyback, requiring auxiliary bias winding for controller IC. IC Role / Device Role / Timing Role: Bias supply rectifier converting auxiliary winding AC to DC for IC VDD pin. Use Value: Low 1.2V VFM maintains stable VDD under varying load; 35pF CT limits capacitive coupling noise into sensitive feedback path. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R02U | VRRM = 200V, trr = 35ns, VF = 1.15V @ 2A, SOD-123FL package | Higher voltage rating and faster recovery, but surface-mount only; unsuitable for through-hole legacy boards. | Select when upgrading for higher line voltage margin or lower switching loss, and board supports SMT reflow. |
| 1N4001G | VRRM = 50V, IF(AV) = 1.0A, trr > 2μs, DO-41 package | Slower recovery and lower current rating; not suitable for >20kHz operation or 2A continuous loads. | Acceptable only for low-frequency, low-power linear supplies where efficiency and EMI are non-critical. |
Compared with STTH2R02U, PR2001-T offers proven DO-15 through-hole compatibility and adequate speed for 65kHz flybacks, while 1N4001G lacks both speed and current headroom for modern switchers - making PR2001-T the balanced choice for cost-sensitive, medium-frequency rectification.
Availability
PR2001-T is available at Aetrix Electronics and suitable for AC/DC adapters, USB chargers, industrial control power supplies, and LED driver auxiliary circuits requiring stable component supply and long-term manufacturability.
Supply support for PR2001-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 power management, signal integrity, and protection markets since 1964.
The PR2001-T belongs to Diodes' fast recovery rectifier product line, engineered for high-efficiency, cost-sensitive offline power conversion in consumer and industrial applications where DO-15 form factor and 2A capability are essential.
FAQ
Is PR2001-T suitable for use in 100kHz switching power supplies?
Yes - its 150ns reverse recovery time and low Qrr enable stable operation in discontinuous conduction mode (DCM) flyback converters up to 100kHz. Derating curves confirm 2.0A average current capability at 50°C ambient, provided leads are maintained at ambient temperature within 9.5mm of the case.
What is the maximum allowable junction temperature for continuous operation?
The absolute maximum junction temperature is +150°C, and the device is rated for continuous operation across –65°C to +150°C storage and operating range. Thermal design must ensure RθJA × (Pdissipated) + TA ≤ 150°C, with Pdissipated ≈ VFM × IF(AV) + (trr × fSW × VRRM × IF) for switching loss estimation.
Does PR2001-T meet RoHS and lead-free requirements?
Yes - PR2001-T features lead-free finish and complies with RoHS Directive 2011/65/EU (Revision 13.2.2003), including exemption for high-temperature soldering per EU Directive Annex Note 7. Tin-plated terminals meet MIL-STD-202 Method 208 solderability standards.
Why is PR2001-T marked "NOT RECOMMENDED FOR NEW DESIGN"?
This designation reflects Diodes Incorporated's strategic shift toward more efficient, lower-loss alternatives like Schottky or ultrafast rectifiers in newer platforms. PR2001-T remains fully qualified, in active production, and supported for legacy designs and cost-driven applications where its performance envelope remains sufficient.
PR2001-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):
- 50 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 150 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 50 V
- Capacitance @ Vr, F:
- 35pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-15
- Operating Temperature - Junction:
- -65°C ~ 150°C
PR2001-T FAQ
1.How can I place an order for PR2001-T through Aetrix?
Please submit a Request for Quotation (RFQ) for PR2001-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 PR2001-T reliable?
The price and inventory of PR2001-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PR2001-T is usually 5 days.
3.What payment methods are accepted for PR2001-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PR2001-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PR2001-T?
PR2001-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PR2001-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 PR2001-T?
For technical support, including PR2001-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PR2001-T requirements.
6.How does Aetrix verify that PR2001-T is sourced from the original manufacturer or authorized distributors?
All PR2001-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 PR2001-T meets industry standards.
7.What is the process for return or replacement of PR2001-T?
All PR2001-T units undergo pre-shipment inspection (PSI). If there is an issue with PR2001-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 PR2001-T part is unused and in its original packaging.
Return procedure for PR2001-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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