My Inquiry
My Account
Diodes Incorporated PR1503S-B
- Part No.:
- PR1503S-B
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
PR1503S-B.pdf
- Description:
- DIODE GEN PURP 200V 1.5A DO41
- Quantity:
- Payment:
- Shipping:
Inventory:9,617
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PR1503S-B from Diodes Incorporated is a 1.5A fast recovery rectifier diode in DO-41 package, rated for 200V peak repetitive reverse voltage (VRRM), 1.2V forward voltage at 1.5A, and 150ns reverse recovery time - optimized for high-efficiency AC/DC front-end rectification in offline power supplies and industrial SMPS.
For engineers reviewing the PR1503S-B datasheet, PR1503S-B pinout, PR1503S-B application, or PR1503S-B equivalent, key selection criteria include VRRM derating margin, trr-driven switching loss trade-offs, thermal resistance (RθJA = 35 K/W), and DO-41 lead-form compatibility with legacy through-hole PCB layouts.
Technical Context
This device employs a diffused junction structure to achieve fast switching performance while maintaining low forward conduction loss. Its 150ns reverse recovery time (trr) and 20pF junction capacitance (Cj) support operation up to ~1 MHz in flyback and boost converters without excessive ringing or EMI.
The 50A non-repetitive surge rating (IFSM) enables robust handling of inrush currents in capacitive-input rectifiers, and its 1.5A average rectified current (IO) is validated at TA = 50°C with leads held at ambient at 9.5mm from case - critical for thermal design in enclosed enclosures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum peak reverse voltage before breakdown; sets minimum input stage insulation margin for 120/230VAC systems. |
| IO @ TA=50°C | 1.5 A - Continuous DC output current capability under defined thermal conditions; requires heatsinking above 50°C ambient. |
| VFM @ IF=1.5A | 1.2 V - Forward voltage drop determining conduction loss (1.8W at full load); impacts efficiency and thermal design. |
| trr | 150 ns - Reverse recovery time defining switching loss and EMI generation during turn-off in hard-switched topologies. |
| RθJA | 35 K/W - Junction-to-ambient thermal resistance; defines temperature rise per watt dissipated in free-air mounting. |
| IFSM (8.3ms) | 50 A - Peak surge current tolerance; supports cold-start inrush in capacitor-input rectifiers without failure. |
Pinout & Package
DO-41 axial-leaded plastic package with cathode band marking. Standard lead spacing: 0.300" (7.62 mm). Weight: 0.3 g (approx).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Forward current entry point | Connected to AC input or transformer secondary; must withstand full surge current and reverse voltage stress. |
| Cathode (banded end) | Forward current exit / reverse blocking terminal | Connected to bulk capacitor or switch node; polarity marking prevents reverse-bias installation error. |
Key Features
| Feature | Design Value |
|---|---|
| Fast recovery (trr = 150 ns) | Reduces switching losses and EMI in 50–500 kHz SMPS designs compared to standard rectifiers (trr > 1 µs). |
| Low VFM (1.2 V @ 1.5A) | Lowers conduction loss by ~15% vs. comparable 1N4007 (1.4V), improving thermal headroom in compact layouts. |
| DO-41 package with RoHS-compliant tin plating | Enables hand-soldering and wave soldering per MIL-STD-202; UL 94V-0 flammability meets safety standards. |
| 50A IFSM surge rating | Supports reliable operation with 47–100 µF input capacitors in universal-input offline adapters without fuse coordination issues. |
Applications
| AC/DC Adapter Front-End | Industrial SMPS Input Stage |
|---|---|
Use Scenario: 12V/2A wall adapter with bridge rectifier feeding bulk capacitor. IC Role / Device Role / Timing Role: Fast recovery rectifier in single-phase bridge configuration. Use Value: 150ns trr minimizes reverse recovery charge loss, enabling >85% efficiency at 65 kHz switching frequency. | Use Scenario: 24V/10A DIN-rail power supply with choke-input filter. IC Role / Device Role / Timing Role: Output rectifier in dual-switch forward converter secondary. Use Value: 1.2V VFM reduces conduction loss by 0.3W per diode vs. 1N5408, lowering heatsink requirements. |
| LED Driver Input Rectification | UPS Battery Charger Input Stage |
Use Scenario: 48V constant-voltage LED driver with active PFC front-end. IC Role / Device Role / Timing Role: Auxiliary rectifier for control IC bias winding. Use Value: Low Cj (20 pF) prevents coupling of high-frequency PFC noise into bias rail. | Use Scenario: Online UPS with dual AC inputs and battery backup path. IC Role / Device Role / Timing Role: OR-ing diode in redundant AC input selector. Use Value: 50A IFSM handles simultaneous line switchover surges without latch-up or thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4936G | VRRM = 200V, trr = 200 ns, VFM = 1.25V @ 1.5A, DO-41 | Slower recovery increases switching loss in >100 kHz designs | Acceptable where cost sensitivity outweighs efficiency targets |
| ES1D | VRRM = 200V, trr = 35 ns, VFM = 1.7V @ 1.0A, SMD SMB package | SMD footprint requires PCB redesign; higher VFM raises conduction loss | Preferred for new surface-mount designs requiring ultra-fast recovery |
Compared with 1N4936G and ES1D, PR1503S-B offers the best balance of low VFM and moderate trr in a proven through-hole package - ideal for cost-sensitive, thermally constrained legacy designs where board rework is prohibitive.
Availability
PR1503S-B is available at Aetrix Electronics and suitable for AC/DC adapters, industrial SMPS, LED drivers, and UPS battery chargers requiring stable component supply and long-term obsolescence management.
Supply support for PR1503S-B 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.
The PR150x/S series targets cost-optimized, high-volume power conversion applications where fast recovery, surge robustness, and through-hole manufacturability are prioritized over ultra-low VFM or SMD miniaturization.
FAQ
What is the maximum operating temperature for PR1503S-B?
The PR1503S-B has an operating junction temperature range of –65°C to +150°C. Its safe continuous operation depends on thermal design: at TA = 50°C, it delivers full 1.5A IO; above that, current must be derated per Figure 1 - e.g., ~1.0A at 80°C ambient with standard DO-41 mounting.
Is PR1503S-B RoHS compliant?
Yes. PR1503S-B features lead-free finish and complies with RoHS Directive 2011/65/EU (Revision 13.2.2003), including exemptions for glass and high-temperature solder per EU Annex Notes 5 and 7. Tin-plated leads meet MIL-STD-202 Method 208 solderability requirements.
Can PR1503S-B replace 1N4007 in existing designs?
Yes, with performance benefits: PR1503S-B offers faster recovery (150 ns vs. >2 µs), lower VFM (1.2 V vs. ~1.4 V), and higher surge rating (50 A vs. 30 A). However, verify layout clearance for 200V reverse blocking and ensure no thermal overload due to higher switching frequency operation.
Why is PR1503S-B marked "NOT RECOMMENDED FOR NEW DESIGN"?
This designation reflects Diodes Incorporated's strategic focus on newer SMD fast rectifiers (e.g., ES1D, GBU series) and does not indicate reliability issues. PR1503S-B remains fully qualified, in production, and supported - but new designs should consider modern alternatives offering better efficiency, size, or thermal performance.
PR1503S-B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 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 @ 200 V
- Capacitance @ Vr, F:
- 20pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-41
- Operating Temperature - Junction:
- -65°C ~ 150°C
PR1503S-B FAQ
1.How can I place an order for PR1503S-B through Aetrix?
Please submit a Request for Quotation (RFQ) for PR1503S-B 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 PR1503S-B reliable?
The price and inventory of PR1503S-B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PR1503S-B is usually 5 days.
3.What payment methods are accepted for PR1503S-B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PR1503S-B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PR1503S-B?
PR1503S-B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PR1503S-B 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 PR1503S-B?
For technical support, including PR1503S-B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PR1503S-B requirements.
6.How does Aetrix verify that PR1503S-B is sourced from the original manufacturer or authorized distributors?
All PR1503S-B 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 PR1503S-B meets industry standards.
7.What is the process for return or replacement of PR1503S-B?
All PR1503S-B units undergo pre-shipment inspection (PSI). If there is an issue with PR1503S-B, 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 PR1503S-B part is unused and in its original packaging.
Return procedure for PR1503S-B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PR1503S-B Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
