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Diodes Incorporated PR1502S-T
- Part No.:
- PR1502S-T
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
PR1502S-T.pdf
- Description:
- DIODE GEN PURP 100V 1.5A DO41
- Quantity:
- Payment:
- Shipping:
Inventory:7,858
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Product details
Overview
PR1502S-T from Diodes Incorporated is a 1.5A fast recovery rectifier diode in DO-41 package, rated for 100V peak repetitive reverse voltage (VRRM), 1.2V forward voltage at 1.5A, and 150ns reverse recovery time - optimized for high-efficiency AC/DC input stages in offline power supplies and auxiliary rails.
For engineers reviewing the PR1502S-T datasheet, PR1502S-T pinout, PR1502S-T application, or PR1502S-T equivalent, key selection criteria include surge current capability (50A IFSM), thermal resistance (35K/W), low leakage (5µA @ 25°C), RoHS-compliant tin-plated leads, and DO-41 mechanical compatibility with legacy through-hole layouts.
Technical Context
This device employs a diffused junction structure to achieve fast switching performance with low forward conduction loss and controlled reverse recovery behavior. Its 150ns trr and 1.2V VFM at rated current support efficient operation in 50/60Hz rectification and moderate-frequency flyback snubber circuits.
The DO-41 package provides standardized lead spacing (25.4mm) and thermal path design enabling 1.5A average current handling at TA = 50°C with proper PCB copper area. Reverse leakage remains ≤5µA at 25°C and ≤100µA at 100°C under full-rated blocking voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum non-repetitive reverse voltage before breakdown; defines safe operating limit in AC line rectification. |
| IO @ TA=50°C | 1.5 A - Continuous average forward current with leads held at ambient at 9.5mm from case; sets PCB trace and heatsinking requirements. |
| VFM @ IF=1.5A | 1.2 V - Forward voltage drop determining conduction loss (1.8W max at full load) and thermal rise in linear-regulator-fed rails. |
| IFSM (8.3ms) | 50 A - Non-repetitive surge rating; supports inrush current handling during cold-start of capacitive-input supplies. |
| trr | 150 ns - Reverse recovery time measured at IF=0.5A, IR=1.0A, Irr=0.25A; limits switching losses in quasi-resonant converters. |
| RJA | 35 K/W - Junction-to-ambient thermal resistance; used to calculate junction temperature rise (ΔTj = Pd × RJA) for reliability margining. |
| IRM @ 25°C | 5 µA - Max reverse leakage at rated DC blocking voltage; critical for low-power standby circuit integrity. |
Pinout & Package
DO-41 axial-leaded plastic package with cathode band marking; standard lead spacing 25.4 mm, body diameter 4.06–5.21 mm, lead diameter 0.71–0.864 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to AC source or transformer secondary; polarity must align with cathode band orientation on PCB silkscreen. |
| Cathode | Forward current exit / reverse blocking terminal | Marked by colored band; ties to positive rail or switch node; determines direction of rectified output flow. |
Key Features
| Feature | Design Value |
|---|---|
| Fast recovery time | 150 ns trr enables use in 20–100 kHz SMPS front-end rectifiers without excessive switching loss. |
| Low forward voltage | 1.2 V at 1.5A reduces conduction loss by ~15% vs. standard 1N400x series, improving efficiency in low-voltage outputs. |
| High surge rating | 50A IFSM withstands repeated cold-start surges in universal-input AC/DC adapters without degradation. |
| RoHS-compliant finish | Bright tin-plated leads meet J-STD-020C solderability standards and eliminate lead-based assembly concerns. |
| DO-41 mechanical standardization | 25.4 mm lead spacing ensures direct replacement in existing through-hole footprints designed for 1N400x or similar rectifiers. |
Applications
| AC/DC Adapter Input Stage | Industrial Control Power Supply |
|---|---|
Use Scenario: Rectifying 50/60Hz AC from wall outlet or transformer secondary into unregulated DC bus for downstream regulation. IC Role / Device Role / Timing Role: Primary rectifier in single-phase half-wave configuration; handles continuous 1.5A load with 100V reverse standoff. Use Value: 1.2V VFM minimizes heat generation in compact enclosures; 50A IFSM accommodates capacitor-charging surges without derating. | Use Scenario: Providing isolated auxiliary power for PLC I/O modules, relay drivers, and sensor interface circuitry. IC Role / Device Role / Timing Role: Secondary-side rectifier feeding linear regulators or low-noise LDOs; operates at elevated ambient temperatures up to +70°C. Use Value: Stable 5µA reverse leakage at 25°C preserves standby current budget; DO-41 package allows manual rework and field repair. |
| LED Driver Bulk Capacitor Charging | Appliance Motor Control Board |
Use Scenario: Charging bulk electrolytic capacitors after bridge rectification in constant-current LED driver front ends. IC Role / Device Role / Timing Role: Fast-recovery diode in discrete bridge or half-wave clamp; recovers before next AC cycle to prevent reverse conduction loss. Use Value: 150ns trr prevents shoot-through in high-frequency dimming circuits; low Cj (20pF) avoids EMI coupling into analog feedback paths. | Use Scenario: Supplying logic-level power for microcontrollers and gate drivers in washing machine or HVAC motor control boards. IC Role / Device Role / Timing Role: Input rectifier for 12V/24V auxiliary supply derived from mains via step-down transformer. Use Value: UL 94V-0 mold compound meets appliance flammability requirements; 35K/W RJA supports operation at 65°C ambient without forced cooling. |
Availability
PR1502S-T is available at Aetrix Electronics and suitable for AC/DC adapter input stages, industrial control power supplies, LED driver bulk capacitor charging, and appliance motor control board designs requiring stable component supply and long-term manufacturing continuity.
Supply support for PR1502S-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 PR150x/S series targets cost-sensitive, high-volume rectification applications where fast recovery, low VF, and proven DO-41 reliability are required - particularly in legacy-compatible power supply designs.
FAQ
What is the cathode identification method for PR1502S-T?
The cathode is marked by a distinct colored band on the DO-41 package body, located adjacent to the cathode lead. This band must align with the corresponding cathode pad or silkscreen indicator on the PCB to ensure correct polarity during assembly and avoid reverse-bias failure.
Can PR1502S-T replace PR1502-B in existing designs?
Yes - both share identical electrical specifications and DO-package form factor, but PR1502S-T uses tape-and-reel packaging (5K per reel) for automated SMT placement, while PR1502-B is bulk-packaged for manual or wave-solder assembly; mechanical fit and thermal performance are identical.
Is PR1502S-T suitable for use in automotive applications?
No - PR1502S-T is not AEC-Q101 qualified and lacks extended temperature validation beyond −65°C to +150°C operating range; its "Not Recommended for New Design" status and absence of automotive-grade screening make it unsuitable for vehicle ECUs or infotainment systems.
How does PR1502S-T compare to 1N4002 in practical design?
PR1502S-T offers faster recovery (150ns vs. 2µs), lower VF (1.2V vs. 1.5V at 1A), and higher surge rating (50A vs. 30A), enabling higher efficiency and better transient robustness; however, it requires identical DO-41 footprint and shares the same thermal limitations as legacy 1N400x parts.
PR1502S-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):
- 100 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):
- 150 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 100 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-41
- Operating Temperature - Junction:
- -65°C ~ 150°C
PR1502S-T FAQ
1.How can I place an order for PR1502S-T through Aetrix?
Please submit a Request for Quotation (RFQ) for PR1502S-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 PR1502S-T reliable?
The price and inventory of PR1502S-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PR1502S-T is usually 5 days.
3.What payment methods are accepted for PR1502S-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PR1502S-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PR1502S-T?
PR1502S-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PR1502S-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 PR1502S-T?
For technical support, including PR1502S-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PR1502S-T requirements.
6.How does Aetrix verify that PR1502S-T is sourced from the original manufacturer or authorized distributors?
All PR1502S-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 PR1502S-T meets industry standards.
7.What is the process for return or replacement of PR1502S-T?
All PR1502S-T units undergo pre-shipment inspection (PSI). If there is an issue with PR1502S-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 PR1502S-T part is unused and in its original packaging.
Return procedure for PR1502S-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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