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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Diodes Incorporated PR1002-T

Name: PR1002-T
Brand: Diodes Incorporated
SKU: PR1002-T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PR1002-T

Manufacturer:: Diodes Incorporated

Category:: Single Diodes

Package:: DO-204AL, DO-41, Axial

Datasheet:: PR1002-T.pdf

Description:: DIODE GEN PURP 100V 1A DO41

Quantity:: RFQ Add To RFQ list

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Inventory:5,918

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Product details

Overview

PR1002-T from Diodes Incorporated is a 1.0A fast recovery rectifier diode in DO-41 package, rated for 100V peak repetitive reverse voltage (V_RRM), 1.2V forward voltage drop at 1.0A (V_FM), and 150ns reverse recovery time (t_RR); used in AC/DC input stage rectification for offline power supplies and DC-DC converter front-ends.

For engineers reviewing the PR1002-T datasheet, PR1002-T pinout, PR1002-T application, or PR1002-T equivalent, key selection criteria include V_RRM=100V, I_O=1.0A @ T_A=+75°C, t_RR=150ns, low leakage (I_RM=5.0μA @ 25°C), and DO-41 mechanical compatibility with through-hole PCB layouts.

Technical Context

This device employs a diffused junction structure to achieve fast switching performance and low conduction loss. Its 150ns reverse recovery time enables efficient operation in 50/60Hz and higher-frequency rectification circuits up to ~100kHz, while maintaining low thermal resistance (R_θJA=75°C/W) under standard lead-mount conditions.

The 100V V_RRM rating supports universal-input (85–265V_AC) SMPS front-end designs with margin against line transients. Surge capability of 30A (8.3ms half-sine) ensures robustness during cold-start and overload events without derating beyond ambient temperature limits (–65°C to +150°C).

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	100 V - Withstands peak reverse voltage in 100V-class AC line applications with safety margin
I_O	1.0 A @ T_A=+75°C - Continuous average forward current rating under standard heatsinking (9.5mm lead length)
V_FM	1.2 V @ I_F=1.0A - Low conduction loss reduces power dissipation in high-duty-cycle rectifiers
t_RR	150 ns - Enables efficient operation in high-frequency flyback and forward converters
I_RM	5.0 μA @ 25°C - Minimizes standby power loss in energy-sensitive applications
R_θJA	75 °C/W - Thermal performance defined for DO-41 package with standard PCB mounting
I_FSM	30 A (8.3ms) - Sustains surge currents typical of inrush-limited AC inputs

Pinout & Package

DO-41 molded plastic package with axial leads; cathode identified by band marking; tin-plated leads compliant with MIL-STD-202, Method 208; weight ≈0.35 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to AC source or transformer secondary low-side; must withstand full surge current path
Cathode	Forward current exit / reverse blocking terminal	Marked with band; connects to output capacitor positive rail; blocks 100V reverse potential

Key Features

Feature	Design Value
Fast recovery time	150 ns - Reduces switching losses and EMI generation in high-frequency rectification
Low forward voltage	1.2 V @ 1.0A - Improves efficiency in low-voltage-output power supplies
High surge rating	30 A peak (8.3ms) - Eliminates need for external inrush limiting in many consumer power adapters
RoHS-compliant finish	Lead-free, halogen-free plating - Meets global environmental compliance requirements without solderability trade-offs

Applications

AC/DC Adapter Input Rectification

Industrial DC-DC Converter Front-End

Use Scenario: 10–30W wall adapter converting 85–265V_AC to 5–12V_DC using bridge or single-diode configuration.

IC Role / Device Role / Timing Role: Fast recovery rectifier in single-phase half-wave or full-wave bridge configuration.

Use Value: 150ns t_RR and 1.2V V_FM minimize conduction and switching losses, enabling >85% efficiency at light load.

Use Scenario: 24V input industrial DC-DC module accepting wide-range 18–36V_DC with transient protection.

IC Role / Device Role / Timing Role: Polarity protection and reverse-polarity blocking diode on main DC input rail.

Use Value: 100V V_RRM provides 2× margin over 36V nominal input, and 30A I_FSM handles load dump transients.

LED Driver Bulk Capacitor Charging

Automotive Accessory Power Supply

Use Scenario: Off-line LED driver charging bulk electrolytic capacitor after bridge rectification.

IC Role / Device Role / Timing Role: Output rectifier in capacitive-input filter stage.

Use Value: Low 5.0μA I_RM at 25°C prevents capacitor self-discharge, extending hold-up time between AC cycles.

Use Scenario: 12V automotive accessory module powered via cigarette lighter socket (9–16V_DC).

IC Role / Device Role / Timing Role: Reverse polarity protection diode on input power rail.

Use Value: DO-41 axial package allows direct through-hole mounting on compact PCBs; RoHS-compliant finish meets automotive ELV directive.

Equivalent & Alternatives

The following parts are listed as comparable options for similar fast recovery rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
RS1M-T	V_RRM=1000V, t_RR=500ns, V_FM=1.3V @ 1.0A	Higher voltage rating but slower recovery and higher V_FM; suited for high-voltage flyback snubbers	Select only if system requires >600V blocking; otherwise PR1002-T offers better efficiency at 100V class
1N4935	V_RRM=100V, t_RR=200ns, V_FM=1.25V @ 1.0A, R_θJA=80°C/W	Near-identical ratings but higher thermal resistance and longer recovery; legacy DO-41 part	Acceptable drop-in replacement where 50ns t_RR margin is not critical; PR1002-T preferred for new designs targeting lower EMI

Compared with RS1M-T and 1N4935, PR1002-T delivers optimal balance of 100V blocking, 150ns speed, and 1.2V conduction loss-making it the most efficient choice for universal-input SMPS rectification below 600V.

Availability

PR1002-T is available at Aetrix Electronics and suitable for AC/DC adapters, industrial DC-DC converters, and LED driver power stages requiring stable component supply, consistent DO-41 mechanical fit, and RoHS-compliant manufacturing.

Supply support for PR1002-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, manufacturing, and sales operations across Asia, Europe, and North America.

The PR1002-T belongs to the PR100x-T fast recovery rectifier series, designed specifically for cost-sensitive, high-volume power conversion applications demanding reliable 1A rectification with fast switching and low thermal resistance in DO-41 packaging.

FAQ

What is the maximum operating temperature for PR1002-T?

The PR1002-T has an operating junction temperature range of –65°C to +150°C. Its thermal resistance is specified as 75°C/W (junction-to-ambient) under standard test conditions with leads held at ambient temperature at 9.5mm from the case. Derating curves in the datasheet show usable current decreases linearly above +75°C ambient.

Is PR1002-T suitable for surface-mount assembly?

No. PR1002-T uses the axial-lead DO-41 package and is intended for through-hole mounting only. It lacks solder pads or terminations compatible with reflow or wave soldering processes used for SMT. For surface-mount alternatives, consider Diodes Incorporated's SB1100 or S1M series in SMA/SMB packages.

How does PR1002-T compare to PR1001-T in terms of electrical performance?

PR1002-T shares identical construction and thermal specs with PR1001-T but differs in voltage rating: PR1001-T has V_RRM=50V, while PR1002-T is rated for 100V. All other parameters-including I_O, V_FM, t_RR, I_RM, and R_θJA-are identical per the DS26008 datasheet. The higher voltage rating makes PR1002-T suitable for universal-input applications.

Does PR1002-T require heatsinking in typical applications?

Heatsinking is not required for PR1002-T at I_O=1.0A when ambient temperature remains ≤+75°C and PCB layout follows standard DO-41 mounting guidelines (9.5mm lead length). At higher ambient temperatures or continuous loads approaching 1.0A, thermal relief via copper pour or increased trace width is recommended to maintain junction temperature within 150°C limit.

PR1002-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):: 1A

Voltage - Forward (Vf) (Max) @ If:: 1.2 V @ 1 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: 150 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 100 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

PR1002-T FAQ

1.How can I place an order for PR1002-T through Aetrix?

Please submit a Request for Quotation (RFQ) for PR1002-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 PR1002-T reliable?

The price and inventory of PR1002-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PR1002-T is usually 5 days.

3.What payment methods are accepted for PR1002-T?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PR1002-T transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PR1002-T?

PR1002-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PR1002-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 PR1002-T?

For technical support, including PR1002-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PR1002-T requirements.

6.How does Aetrix verify that PR1002-T is sourced from the original manufacturer or authorized distributors?

All PR1002-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 PR1002-T meets industry standards.

7.What is the process for return or replacement of PR1002-T?

All PR1002-T units undergo pre-shipment inspection (PSI). If there is an issue with PR1002-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 PR1002-T part is unused and in its original packaging.

Return procedure for PR1002-T:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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