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Diodes Incorporated PR1001G-T
- Part No.:
- PR1001G-T
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
PR1001G-T.pdf
- Description:
- DIODE GEN PURP 50V 1A DO41
- Quantity:
- Payment:
- Shipping:
Inventory:7,011
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Product details
Overview
PR1001G-T from Diodes Incorporated is a 1.0A fast recovery glass passivated rectifier diode in DO-41 package, rated for 50V peak repetitive reverse voltage, 1.3V forward voltage at 1.0A, and 150ns reverse recovery time, used in AC/DC input stage rectification of low-power offline power supplies and adapter circuits.
For engineers reviewing the PR1001G-T datasheet, PR1001G-T pinout, PR1001G-T application, or PR1001G-T equivalent, key selection criteria include its 30A non-repetitive surge rating, 5.0µA max reverse leakage at 25°C, thermal resistance of 95°C/W, RoHS-compliant tin-plated leads, and DO-41 mechanical compatibility with legacy through-hole designs.
Technical Context
This device operates as a unidirectional current-conducting switch in single-phase half-wave rectifier topologies, optimized for high-frequency switching efficiency via fast recovery (150ns) and low stored charge. Its glass passivated die construction ensures stable junction performance under thermal cycling and humidity exposure.
The DO-41 package supports lead-free reflow and wave soldering per MIL-STD-202 Method 208, with cathode band polarity marking and 0.35g mass enabling reliable mechanical retention in PCB-mounted power conversion stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum peak reverse voltage before breakdown; sets safe operating limit in 24–48V AC input applications |
| IO @ TA=55°C | 1.0 A - Continuous average forward current derated to 55°C ambient; defines usable output capacity in convection-cooled adapters |
| VFM @ IF=1.0A | 1.3 V - Forward voltage drop determining conduction loss and thermal dissipation in rectifier leg |
| tRR | 150 ns - Reverse recovery time limiting minimum switching frequency and reducing switching loss in SMPS front-end stages |
| IFSM (8.3ms) | 30 A - Non-repetitive surge current capability enabling robustness against line transients and inrush events |
| IRM @ 25°C | 5.0 µA - Low reverse leakage ensuring minimal standby power loss in no-load or light-load conditions |
| RθJA | 95 °C/W - Junction-to-ambient thermal resistance defining required PCB copper area and airflow for thermal management |
Pinout & Package
DO-41 plastic package with axial leads: anode and cathode terminals identified by cathode band marking on body; case meets UL 94V-0 flammability rating and J-STD-020 moisture sensitivity Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry node | Connected to AC input or transformer secondary; must withstand full surge current and reverse voltage stress |
| Cathode | Forward current exit node | Connected to bulk capacitor or downstream DC bus; polarity marking ensures correct orientation during assembly |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die | Enhances long-term reliability under thermal cycling and humid environments without silicone gel encapsulation |
| Fast recovery (150ns) | Reduces switching losses and EMI generation compared to standard recovery rectifiers in 20–100kHz converters |
| 30A surge rating | Withstands cold-start inrush and lightning-induced line surges without degradation in 12–48V AC-input systems |
| RoHS-compliant tin plating | Enables lead-free soldering compatibility while maintaining solder wettability and intermetallic bond integrity |
Applications
| AC/DC Wall Adapters | Industrial Control Power Supplies |
|---|---|
Use Scenario: 24V AC input rectification in compact wall-mounted USB-C PD adapters with <5W standby power requirement. IC Role / Device Role / Timing Role: Primary-side unidirectional rectifier converting transformer secondary AC to pulsating DC prior to bulk capacitance. Use Value: 1.3V VFM minimizes conduction loss at 1A load, supporting >75% efficiency at light loads; 150ns tRR suppresses high-frequency ringing. | Use Scenario: Input rectification in DIN-rail mounted 24VDC PLC I/O module power section with wide ambient temperature range (-25°C to +70°C). IC Role / Device Role / Timing Role: Front-end bridge or half-wave rectifier handling 50/60Hz mains-derived AC, exposed to industrial voltage transients. Use Value: 30A IFSM provides margin against motor-start induced surges; -65°C to +150°C TJ range ensures operation across extended temperature profiles. |
| LED Driver Auxiliary Supplies | IoT Sensor Node Power Inputs |
Use Scenario: Rectifying 12V AC from magnetic transformer in constant-current LED driver auxiliary bias supply. IC Role / Device Role / Timing Role: Isolated low-current rectifier feeding linear regulator or buck controller bias rail. Use Value: 5.0µA IRM at 25°C reduces no-load power draw below 100µW, critical for Energy Star compliance in lighting systems. | Use Scenario: AC input rectification in battery-backed smart sensor node with integrated AC/DC charger circuitry. IC Role / Device Role / Timing Role: Input-stage protection and polarity enforcement diode in dual-source (AC + battery) power architecture. Use Value: DO-41 axial package enables manual repair and field replacement; UL 94V-0 housing prevents flame propagation in enclosed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RS1A-T | Same DO-41 package, identical 50V VRRM and 1.0A IO, but tRR = 250ns (vs. 150ns) and VFM = 1.3V typical (same) | Slightly higher switching loss in >50kHz designs; suitable where cost sensitivity outweighs recovery speed | Select RS1A-T when design operates below 30kHz or requires broader distributor availability |
| 1N4933 | Legacy DO-41 part with 50V VRRM and 1.0A IO, but tRR = 500ns and IRM = 5.0µA same; not RoHS-compliant | Not suitable for new designs requiring lead-free compliance or high-frequency efficiency | Use only for legacy repair or non-RoHS exempt applications; avoid for production after 2025 |
Compared with RS1A-T and 1N4933, PR1001G-T delivers superior high-frequency rectification efficiency due to its 150ns tRR and guaranteed RoHS compliance, making it optimal for modern compact AC/DC converters where thermal and EMI constraints are tight.
Availability
PR1001G-T is available at Aetrix Electronics and suitable for AC/DC wall adapters, industrial control power supplies, and LED driver auxiliary supplies requiring stable component supply, consistent parametric performance, and full traceability.
Supply support for PR1001G-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 for industrial, computing, and consumer markets.
The PR100xG series belongs to Diodes' fast recovery rectifier product line, engineered specifically for cost-sensitive, space-constrained AC/DC front-end applications demanding robust surge immunity and low leakage.
FAQ
What is the maximum junction temperature for PR1001G-T?
The absolute maximum junction temperature is +150°C, with continuous operation permitted from -65°C to +150°C. Derating begins above +55°C ambient, where average forward current drops linearly to zero at +150°C case temperature per Figure 1 in DS27001 Rev. 12.
Is PR1001G-T compatible with lead-free reflow soldering processes?
Yes - PR1001G-T features tin-plated leads qualified to MIL-STD-202 Method 208 and supports both lead-free wave and reflow soldering. Its DO-41 package is rated for peak reflow temperatures up to 260°C for 10 seconds, compliant with J-STD-020 Level 1 moisture sensitivity.
How does the 150ns reverse recovery time impact EMI performance?
A 150ns tRR reduces high-frequency ringing during turn-off transitions, lowering radiated emissions in the 30–100MHz band. This allows smaller input filter components and eases EMC certification in Class B conducted/radiated emission tests for consumer power supplies.
Can PR1001G-T replace PR1002G-T in a 100V design?
No - PR1001G-T has a 50V VRRM rating and will experience avalanche breakdown above ~65V reverse bias. PR1002G-T (100V VRRM) is required for 100V-rated designs; substituting PR1001G-T risks catastrophic failure under normal operating reverse voltage.
PR1001G-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 150 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 50 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
PR1001G-T FAQ
1.How can I place an order for PR1001G-T through Aetrix?
Please submit a Request for Quotation (RFQ) for PR1001G-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 PR1001G-T reliable?
The price and inventory of PR1001G-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PR1001G-T is usually 5 days.
3.What payment methods are accepted for PR1001G-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PR1001G-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PR1001G-T?
PR1001G-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PR1001G-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 PR1001G-T?
For technical support, including PR1001G-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PR1001G-T requirements.
6.How does Aetrix verify that PR1001G-T is sourced from the original manufacturer or authorized distributors?
All PR1001G-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 PR1001G-T meets industry standards.
7.What is the process for return or replacement of PR1001G-T?
All PR1001G-T units undergo pre-shipment inspection (PSI). If there is an issue with PR1001G-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 PR1001G-T part is unused and in its original packaging.
Return procedure for PR1001G-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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