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Diodes Incorporated PR1505-T
- Part No.:
- PR1505-T
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
PR1505-T.pdf
- Description:
- DIODE GEN PURP 600V 1.5A DO15
- Quantity:
- Payment:
- Shipping:
Inventory:9,662
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Product details
Overview
PR1505-T from Diodes Incorporated is a 1.5A fast recovery rectifier diode in DO-15 package, rated for 600V peak repetitive reverse voltage (VRRM), 1.2V forward voltage at 1.5A, and 150ns reverse recovery time - used in AC/DC input stage rectification for industrial power supplies and LED drivers.
For engineers reviewing the PR1505-T datasheet, PR1505-T pinout, PR1505-T application, or PR1505-T equivalent, key selection criteria include VRRM derating margin, trr-dependent switching loss in flyback/foward converters, thermal resistance (RJA = 35 K/W), and DO-15 lead-form compatibility with legacy through-hole PCB layouts.
Technical Context
This device employs a diffused junction structure optimized for fast switching and low conduction loss. Its 150ns reverse recovery time (trr) and 1.2V VFM at 1.5A support high-frequency operation up to 100kHz in offline SMPS topologies.
Rated for 50A non-repetitive surge current (IFSM) and 1.5A average rectified output current at TA = 50°C, it sustains transient overloads while maintaining low IRM (5.0 µA @ 25°C, 100 µA @ 100°C) under full 600V blocking conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - Maximum peak reverse voltage the diode blocks without breakdown; sets minimum insulation margin for 400VAC input designs. |
| IO @ TA=50°C | 1.5 A - Continuous DC output current capability when leads are held at ambient at 9.5mm from case; defines heatsink-free power handling. |
| VFM @ IF=1.5A | 1.2 V - Forward voltage drop determining conduction loss (1.8W at 1.5A); impacts efficiency and thermal design in linear/switching supplies. |
| trr | 150 ns - Reverse recovery time measured at IF=0.5A, IR=1.0A, Irr=0.25A; directly affects switching loss and EMI in hard-switched converters. |
| RJA | 35 K/W - Junction-to-ambient thermal resistance; enables estimation of junction temperature rise (ΔTJ = Pd × 35) without heatsink. |
| IFSM | 50 A - Peak surge current tolerance for 8.3ms half-sine wave; supports inrush current survival in unregulated AC inputs. |
Pinout & Package
DO-15 axial-leaded plastic package with cathode band marking. Standard lead spacing matches IPC-7351B DO-15 footprint; body diameter ~5.5–7.62 mm, length ~25.4 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to AC source or transformer secondary; must withstand full surge current and reverse voltage stress. |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; ties to output capacitor or switching node; carries full load current and absorbs reverse recovery charge. |
Key Features
| Feature | Design Value |
|---|---|
| Fast recovery (trr = 150 ns) | Reduces switching loss and di/dt-induced EMI in 50–100 kHz SMPS, enabling smaller snubbers and lower MOSFET stress. |
| Low VFM (1.2 V @ 1.5A) | Lowers conduction loss by ~15% vs. standard recovery diodes, improving efficiency in 12–24V output supplies. |
| High IFSM (50 A) | Survives cold-start inrush into bulk capacitors without degradation, eliminating need for NTC thermistors in cost-sensitive designs. |
| RoHS-compliant tin-plated leads | Ensures solderability per MIL-STD-202 Method 208 and compatibility with lead-free reflow profiles (peak ≤260°C). |
Applications
| Industrial AC/DC Power Supplies | LED Driver Input Rectification |
|---|---|
Use Scenario: Single-phase 85–265VAC input rectification in enclosed 15–30W industrial power supplies. IC Role / Device Role / Timing Role: Primary-side unidirectional current path; handles full line-frequency and switching transients. Use Value: 600V VRRM provides 2× safety margin over 265VAC peak (375V), and 150ns trr minimizes dead-time losses in quasi-resonant controllers. | Use Scenario: Bridge or single-diode rectification feeding constant-current LED driver ICs in streetlight modules. IC Role / Device Role / Timing Role: High-reliability mains interface component; operates continuously at 50–70°C ambient. Use Value: 35 K/W RJA allows operation at full 1.5A without heatsink in forced-air-cooled enclosures; RoHS compliance meets outdoor lighting regulatory requirements. |
| Capacitor-Input Filter Stages | UPS and Backup Power Rectifiers |
Use Scenario: Capacitor-input rectifier in offline 12V/2A auxiliary supply for microcontroller supervision circuits. IC Role / Device Role / Timing Role: Energy transfer element during positive half-cycles; subjected to high peak currents and voltage reversal. Use Value: 50A IFSM withstands repeated capacitor charging surges; 1.2V VFM limits self-heating during sustained 1.5A output. | Use Scenario: Input rectification in line-interactive UPS systems with battery backup and automatic voltage regulation. IC Role / Device Role / Timing Role: Bidirectional energy-handling component during line/battery mode transitions. Use Value: Low IRM (5 µA @ 25°C) prevents standby power drain; DO-15 mechanical robustness supports vibration-prone rack-mount environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L06U | VRRM = 600V, trr = 120 ns, VFM = 1.15V @ 1.5A, DO-41 only | Lower trr improves light-load efficiency but requires DO-41 footprint; no DO-15 variant available | Select if board space permits DO-41 and sub-120ns trr is required for <50kHz ZVS designs. |
| ON Semi MUR160 | VRRM = 600V, trr = 75 ns, VFM = 1.25V @ 1.5A, DO-15 package | Superior trr reduces switching loss but higher VFM increases conduction loss at full load | Prefer for high-frequency flyback where trr dominates loss budget; verify thermal margin due to +0.05V VFM. |
Compared with STTH1L06U and MUR160, PR1505-T offers balanced trr/VFM trade-off and native DO-15 compatibility - making it optimal for cost-sensitive, space-constrained, and legacy-replacement designs where 150ns trr suffices and lead pitch matching is critical.
Availability
PR1505-T is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, LED driver input stages, and UPS rectifier circuits requiring stable component supply and long-term obsolescence management.
Supply support for PR1505-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-efficiency power management and signal integrity solutions for industrial, computing, and consumer markets.
The PR150x-S series targets cost-optimized, high-reliability rectification in legacy and new industrial power designs - emphasizing manufacturability, thermal robustness, and JEDEC-standard surge survivability.
FAQ
Is PR1505-T suitable for use in capacitive-input filter applications?
Yes, but with 20% current derating per datasheet Note 1. At 1.5A rated IO, maximum continuous current in capacitive-input configurations is 1.2A. This accounts for elevated peak currents and reduced conduction angle, preventing thermal runaway under high-C bulk capacitance.
What is the cathode marking method on PR1505-T?
The cathode is marked by a distinct opaque white or gray band located near one end of the DO-15 cylindrical body. This band aligns with the cathode terminal and is visible under standard visual inspection; no laser marking or alphanumeric coding is used.
Does PR1505-T meet lead-free soldering requirements?
Yes - it features bright tin-plated leads compliant with RoHS Directive 2002/95/EC (Annex exemptions applied), and is qualified for lead-free reflow profiles up to 260°C peak temperature per MIL-STD-202 Method 208.
Why is PR1505-T labeled "NOT RECOMMENDED FOR NEW DESIGN"?
This designation reflects Diodes Incorporated's internal roadmap guidance: newer alternatives (e.g., MUR160, STTH1L06U) offer superior trr or packaging flexibility. PR1505-T remains fully qualified and supported for existing designs and cost-driven replacements where DO-15 form factor and 150ns trr are acceptable.
PR1505-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):
- 600 V
- Current - Average Rectified (Io):
- 1.5A
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 1.5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 250 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 600 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-15
- Operating Temperature - Junction:
- -65°C ~ 150°C
PR1505-T FAQ
1.How can I place an order for PR1505-T through Aetrix?
Please submit a Request for Quotation (RFQ) for PR1505-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 PR1505-T reliable?
The price and inventory of PR1505-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PR1505-T is usually 5 days.
3.What payment methods are accepted for PR1505-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PR1505-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PR1505-T?
PR1505-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PR1505-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 PR1505-T?
For technical support, including PR1505-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PR1505-T requirements.
6.How does Aetrix verify that PR1505-T is sourced from the original manufacturer or authorized distributors?
All PR1505-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 PR1505-T meets industry standards.
7.What is the process for return or replacement of PR1505-T?
All PR1505-T units undergo pre-shipment inspection (PSI). If there is an issue with PR1505-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 PR1505-T part is unused and in its original packaging.
Return procedure for PR1505-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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