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Diodes Incorporated PR1003-T
- Part No.:
- PR1003-T
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
PR1003-T.pdf
- Description:
- DIODE GEN PURP 200V 1A DO41
- Quantity:
- Payment:
- Shipping:
Inventory:3,876
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Product details
Overview
PR1003-T from Diodes Incorporated is a 1.0A fast recovery rectifier diode in DO-41 package, rated for 200V peak repetitive reverse voltage (VRRM), 1.2V forward voltage drop at 1.0A (VFM), and 150ns reverse recovery time (tRR), used in AC/DC input stage rectification for offline power supplies and DC-DC converter front-ends.
For engineers reviewing the PR1003-T datasheet, PR1003-T pinout, PR1003-T application, or PR1003-T equivalent, key selection criteria include VRRM derating margin, thermal resistance (RθJA = 75°C/W), surge capability (IFSM = 30A), and low IRM (5.0µA @ 25°C) for standby efficiency in energy-sensitive designs.
Technical Context
This device employs a diffused junction structure to achieve fast switching with low forward conduction loss and controlled reverse recovery behavior. Its 150ns tRR and 15pF typical capacitance support operation in 50–100kHz SMPS front-end rectifiers without excessive switching loss or EMI generation.
The DO-41 package provides standardized axial lead mounting with cathode band polarity marking, tin-plated leads compliant with MIL-STD-202 Method 208, and UL 94V-0 flammability rating - enabling reliable through-hole assembly in industrial and consumer power modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum allowable repetitive reverse voltage before breakdown; sets minimum input voltage isolation margin in 115/230VAC systems. |
| IO @ TA=75°C | 1.0 A - Continuous average forward current rating at 75°C ambient; defines usable output capacity in thermally constrained PCB layouts. |
| VFM @ IF=1.0A | 1.2 V - Forward voltage drop at rated current; directly determines conduction loss (1.2W max at 1A) and thermal load in rectifier path. |
| tRR | 150 ns - Reverse recovery time under specified test conditions (IF=0.5A, IR=1A); impacts switching loss and snubber design in high-frequency rectification. |
| IFSM (8.3ms) | 30 A - Non-repetitive surge current rating; supports inrush current handling during cold-start of capacitive-input power supplies. |
| IRM @ 25°C | 5.0 µA - Peak reverse leakage at rated DC blocking voltage; critical for low-power standby mode efficiency and capacitor discharge control. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance; enables estimation of junction temperature rise (ΔTJ = Pd × 75) for reliability validation. |
Pinout & Package
DO-41 molded plastic axial-leaded package with cathode band marking; tin-plated leads, 0.35g weight, UL 94V-0 rated case material.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to AC input or transformer secondary; must withstand full surge current and reverse voltage stress. |
| Cathode (Lead 2, banded end) | Forward current exit / reverse blocking node | Connected to bulk capacitor positive rail; polarity marking ensures correct orientation to prevent catastrophic failure. |
Key Features
| Feature | Design Value |
|---|---|
| Diffused junction construction | Enables precise control of carrier lifetime for optimized trade-off between VFM and tRR without process drift. |
| 30A peak surge rating (8.3ms) | Supports repeated cold-start events in universal-input AC/DC adapters without degradation or bond-wire fusing. |
| Low IRM (5.0µA @ 25°C) | Minimizes no-load power loss in standby mode, meeting Energy Star Level VI and EU CoC Tier 2 requirements. |
| RoHS-compliant lead finish | Tin-plated leads ensure solderability and compatibility with lead-free reflow profiles up to 260°C peak. |
Applications
| AC/DC Adapter Input Rectification | Industrial DC-DC Converter Front-End |
|---|---|
Use Scenario: 115/230VAC input rectification feeding 300V bulk capacitor in compact wall adapters. IC Role / Device Role / Timing Role: Unidirectional current steering and voltage conversion via half-wave or full-wave bridge configuration. Use Value: 1.2V VFM limits conduction loss to ≤1.2W at 1A, reducing heatsink requirement in space-constrained enclosures. | Use Scenario: Off-line rectification in 24V/48V industrial power modules with wide ambient temperature range (-40°C to +85°C). IC Role / Device Role / Timing Role: High-reliability AC line interface component with surge immunity for factory automation equipment. Use Value: 30A IFSM and -65°C to +150°C operating range ensure robustness against grid transients and thermal cycling in harsh environments. |
| LED Driver Bulk Capacitor Charging | UPS Battery Charger Input Stage |
Use Scenario: Rectifying mains input to charge high-voltage electrolytic capacitor in constant-current LED drivers. IC Role / Device Role / Timing Role: Primary rectifier in capacitive-input filter topology with high peak current demand. Use Value: 150ns tRR reduces switching noise coupling into sensitive current-sense circuitry, improving dimming stability. | Use Scenario: Input rectification in online UPS battery charging circuits with frequent AC interruption and reconnection. IC Role / Device Role / Timing Role: Bidirectional transient-handling element during AC dropout and restoration events. Use Value: Low 5.0µA IRM prevents bulk capacitor self-discharge during extended AC outages, preserving charge state for backup readiness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RS1M-T | VRRM = 1000V, tRR = 500ns, VFM = 1.3V @ 1A | Higher voltage rating but slower recovery; suited for higher-VRRM legacy designs with relaxed switching speed. | Select RS1M-T only when >600V reverse margin is required and tRR < 200ns is not critical. |
| FR103 | VRRM = 200V, tRR = 500ns, VFM = 1.3V @ 1A, RθJA = 80°C/W | Nearly identical VRRM but significantly slower recovery and higher thermal resistance. | Accept FR103 only in low-frequency (<30kHz), low-derating-margin designs where cost outweighs efficiency. |
Compared with RS1M-T and FR103, PR1003-T delivers optimal balance of 200V rating, 150ns tRR, and 75°C/W thermal resistance - making it preferred for modern 50–100kHz SMPS where efficiency, EMI, and thermal density are jointly constrained.
Availability
PR1003-T is available at Aetrix Electronics and suitable for AC/DC adapter input rectification, industrial DC-DC converter front-ends, LED driver bulk capacitor charging, and UPS battery charger input stages requiring stable component supply and long-term manufacturing continuity.
Supply support for PR1003-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 distribution operations across Asia, Europe, and the Americas.
The PR1003-T belongs to the PR100x-T fast recovery rectifier series, designed specifically for high-efficiency, cost-sensitive AC/DC power conversion in consumer, industrial, and lighting applications where thermal performance and surge robustness are critical.
FAQ
What is the maximum junction temperature for PR1003-T?
The PR1003-T has an operating junction temperature range of -65°C to +150°C. This allows reliable operation in high-ambient environments such as enclosed power supplies or industrial enclosures, provided thermal design maintains TJ ≤ 150°C under worst-case power dissipation (Pd = VFM × IO + switching losses).
Can PR1003-T replace PR1002-T in a design?
Yes, PR1003-T can directly replace PR1002-T (100V VRRM) where higher reverse voltage margin is needed. Its 200V VRRM provides greater safety margin against line surges and transients, though designers must verify that increased VRRM does not adversely affect reverse recovery behavior in the specific circuit layout.
Is PR1003-T suitable for surface-mount assembly?
No - PR1003-T uses the axial-leaded DO-41 package and is intended for through-hole mounting only. It lacks SMD-compatible terminations or footprint geometry; use SMT alternatives like ES1D or MUR120 if board space or automated assembly requires surface-mount packaging.
Does PR1003-T meet halogen-free and green standards?
Yes - PR1003-T features a lead-free finish compliant with RoHS 2 (2011/65/EU) and RoHS 3 (2015/863/EU), and Diodes Incorporated certifies it as "Green" per their internal definition, meaning it is antimony- and halogen-free in accordance with IEC 61249-2-21.
PR1003-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 150 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 200 V
- Capacitance @ Vr, F:
- 15pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-41
- Operating Temperature - Junction:
- -65°C ~ 150°C
PR1003-T FAQ
1.How can I place an order for PR1003-T through Aetrix?
Please submit a Request for Quotation (RFQ) for PR1003-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 PR1003-T reliable?
The price and inventory of PR1003-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PR1003-T is usually 5 days.
3.What payment methods are accepted for PR1003-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PR1003-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PR1003-T?
PR1003-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PR1003-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 PR1003-T?
For technical support, including PR1003-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PR1003-T requirements.
6.How does Aetrix verify that PR1003-T is sourced from the original manufacturer or authorized distributors?
All PR1003-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 PR1003-T meets industry standards.
7.What is the process for return or replacement of PR1003-T?
All PR1003-T units undergo pre-shipment inspection (PSI). If there is an issue with PR1003-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 PR1003-T part is unused and in its original packaging.
Return procedure for PR1003-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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