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Diodes Incorporated PR1003G-T
- Part No.:
- PR1003G-T
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
PR1003G-T.pdf
- Description:
- DIODE GEN PURP 200V 1A DO41
- Quantity:
- Payment:
- Shipping:
Inventory:7,628
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Product details
Overview
PR1003G-T from Diodes Incorporated is a 1.0A fast recovery glass passivated rectifier diode in DO-41 package, rated for 200V peak repetitive reverse voltage (VRRM), 1.3V 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 auxiliary power rails.
For engineers reviewing the PR1003G-T datasheet, PR1003G-T pinout, PR1003G-T application, or PR1003G-T equivalent, key selection criteria include its 200V blocking capability, 30A non-repetitive surge rating, low 5.0µA reverse leakage at 25°C, thermal resistance of 95°C/W, and RoHS-compliant tin-plated leads suitable for automated assembly.
Technical Context
This device operates as a unidirectional current-conducting switch in single-phase half-wave rectifier topologies. Its glass passivated junction ensures stable reverse characteristics under thermal cycling, while the 150ns tRR enables efficient operation in 20–100kHz switching converters without excessive switching loss.
The DO-41 package supports lead-free reflow soldering per MIL-STD-202 Method 208, with cathode band polarity marking and 0.35g mass. Thermal derating begins at +55°C ambient, maintaining 1.0A average output up to that point per Figure 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum repetitive reverse voltage the diode blocks without breakdown; defines usable AC input range in bridge or half-wave configurations. |
| IF(AV) | 1.0 A @ TA = +55°C - Continuous DC output current capability when leads are held at ambient at 9.5mm from case; requires heatsinking above this temperature. |
| VFM | 1.3 V @ IF = 1.0A - Forward conduction loss at rated current; determines I²R heating and efficiency in low-voltage secondary-side rectification. |
| tRR | 150 ns - Time to transition from forward conduction to reverse blocking; critical for minimizing commutation loss in high-frequency SMPS. |
| IFSM | 30 A - Peak non-repetitive surge current tolerance for 8.3ms half-sine; withstands inrush and line transient events in AC mains input stages. |
| IRM | 5.0 µA @ 25°C - Reverse leakage at rated DC blocking voltage; low value reduces standby power loss in high-impedance bias networks. |
| RθJA | 95 °C/W - Junction-to-ambient thermal resistance; used to calculate junction temperature rise under given power dissipation and ambient conditions. |
Pinout & Package
DO-41 plastic package with axial leads: anode and cathode terminals identified by cathode band marking on body. Molded UL 94V-0 plastic case, tin-plated leads, 0.35g typical weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry node | Connected to AC source or transformer secondary; must sustain full reverse voltage when cathode is positive. |
| Cathode | Forward current exit node | Connected to load or filter capacitor; marked with band; reverse-biased during off-state to block AC half-cycle. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die construction | Enhances long-term reliability and moisture resistance vs. epoxy-passivated alternatives; maintains stable IR and VRRM over 10+ year field life. |
| Fast recovery (150ns) | Reduces switching loss in 20–100kHz flyback and forward converters compared to standard recovery rectifiers (>2µs). |
| 30A surge rating | Supports cold-start inrush and lightning-induced transients without failure in Class II AC/DC adapters and industrial power modules. |
| RoHS-compliant lead finish | Tin-plated leads meet J-STD-020 Level 1 moisture sensitivity and support Pb-free reflow profiles up to 260°C peak. |
Applications
| AC/DC Adapter Input Rectification | Industrial Control Power Supply |
|---|---|
Use Scenario: Converting 90–264VAC mains to unregulated DC bus in compact wall-wart adapters. IC Role / Device Role / Timing Role: Primary-side half-wave rectifier handling 1.0A average output before bulk capacitance. Use Value: 200V VRRM safely covers 264VAC peak (373V) with margin; 150ns tRR minimizes EMI generation during zero-crossing transitions. | Use Scenario: Providing isolated +12V/1.0A auxiliary rail for PLC I/O modules and sensor interface circuitry. IC Role / Device Role / Timing Role: Secondary-side rectifier in flyback converter operating at 65kHz. Use Value: Low 5.0µA IRM prevents capacitor discharge during standby; 95°C/W RθJA allows natural convection cooling on PCB without heatsink. |
| LED Driver Bulk Rectification | Automotive Aftermarket Power Module |
Use Scenario: Rectifying transformer output in constant-current LED drivers for street lighting. IC Role / Device Role / Timing Role: Input-stage diode feeding bulk capacitor in quasi-resonant topology. Use Value: 30A IFSM withstands lamp hot-restrike surges; glass passivation resists humidity-induced leakage drift in outdoor enclosures. | Use Scenario: DC-DC converter input rectification in 12V automotive accessory modules (e.g., USB chargers). IC Role / Device Role / Timing Role: Mains-input rectifier in wide-input buck-boost front-end accepting 9–36VDC. Use Value: 1.3V VFM limits conduction loss at 1.0A; DO-41 axial form factor simplifies through-hole mounting on cost-sensitive PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RS2M-T | Same DO-41 package, 200V VRRM, but 500ns tRR and 1.15V VFM at 1.0A. | Higher reverse recovery loss limits use to ≤30kHz; lower VFM improves conduction efficiency. | Select RS2M-T where thermal budget is tight but switching frequency is low; prefer PR1003G-T for >50kHz designs requiring faster recovery. |
| 1N4936-T | DO-41, 200V VRRM, 1.05V VFM, but only 3A IFSM and 2.0µs tRR. | Insufficient surge rating for AC mains inrush; unsuitable for line-powered applications with high dI/dt. | Use 1N4936-T only in low-energy DC-DC outputs; avoid for primary-side rectification where 30A IFSM is required. |
Compared with RS2M-T and 1N4936-T, PR1003G-T uniquely balances 150ns tRR, 30A surge capability, and 200V rating-making it optimal for compact, high-frequency AC/DC inputs where both switching loss and transient robustness matter.
Availability
PR1003G-T is available at Aetrix Electronics and suitable for AC/DC adapter design, industrial control power supply development, and LED driver bulk rectification requiring stable component supply across production volumes.
Supply support for PR1003G-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 PR100xG series belongs to Diodes' general-purpose fast recovery rectifier product line, engineered for cost-sensitive, high-volume power conversion applications demanding reliability, RoHS compliance, and consistent parametric performance.
FAQ
What is the maximum operating temperature for PR1003G-T?
The PR1003G-T has an operating junction temperature range of –65°C to +150°C. Ambient temperature must be limited to +55°C to maintain 1.0A average forward current, as specified in the derating curve (Figure 1). Exceeding this ambient without thermal mitigation risks exceeding the 150°C max junction limit.
Is PR1003G-T compatible with lead-free reflow soldering processes?
Yes. PR1003G-T features tin-plated leads qualified per MIL-STD-202 Method 208 and complies with J-STD-020 Level 1 moisture sensitivity. It supports standard Pb-free reflow profiles with peak temperatures up to 260°C, provided board layout allows adequate thermal relief for the DO-41 axial leads.
How does the 150ns reverse recovery time impact EMI in switching power supplies?
A 150ns tRR reduces high-frequency ringing during diode turn-off, lowering radiated and conducted EMI in 50–100kHz flyback converters. This allows smaller EMI filters and eases compliance with CISPR-22/32 Class B limits, especially when paired with snubberless transformer designs.
Can PR1003G-T replace PR1002G-T in a 100V design?
No. PR1002G-T is rated for 100V VRRM, while PR1003G-T is rated for 200V. Substituting a higher-voltage diode is electrically safe but may increase forward voltage slightly due to different doping profiles; however, the reverse is unsafe-using PR1002G-T in a 200V circuit risks catastrophic breakdown under peak line conditions.
PR1003G-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:
- 1.3 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
PR1003G-T FAQ
1.How can I place an order for PR1003G-T through Aetrix?
Please submit a Request for Quotation (RFQ) for PR1003G-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 PR1003G-T reliable?
The price and inventory of PR1003G-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PR1003G-T is usually 5 days.
3.What payment methods are accepted for PR1003G-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PR1003G-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PR1003G-T?
PR1003G-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PR1003G-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 PR1003G-T?
For technical support, including PR1003G-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PR1003G-T requirements.
6.How does Aetrix verify that PR1003G-T is sourced from the original manufacturer or authorized distributors?
All PR1003G-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 PR1003G-T meets industry standards.
7.What is the process for return or replacement of PR1003G-T?
All PR1003G-T units undergo pre-shipment inspection (PSI). If there is an issue with PR1003G-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 PR1003G-T part is unused and in its original packaging.
Return procedure for PR1003G-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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