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

Diodes Incorporated RS3A-13-F

Name: RS3A-13-F
Brand: Diodes Incorporated
SKU: RS3A-13-F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: RS3A-13-F

Manufacturer:: Diodes Incorporated

Category:: Single Diodes

Package:: DO-214AB, SMC

Datasheet:: RS3A-13-F.pdf

Description:: DIODE GEN PURP 50V 3A SMC

Quantity:: RFQ Add To RFQ list

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Inventory:6,778

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Product details

Overview

RS3A-13-F from Diodes Incorporated is a 50 V, 3.0 A surface-mount fast recovery rectifier in SMB (DO-214AA) package, featuring 1.3 V forward voltage at 3.0 A, 150 ns reverse recovery time, and 100 A non-repetitive surge capability - deployed in AC/DC front-end rectification for compact power adapters and LED drivers.

For engineers reviewing the RS3A-13-F datasheet, RS3A-13-F pinout, RS3A-13-F application, or RS3A-13-F equivalent, key selection criteria include peak repetitive reverse voltage (50 V), average rectified current (3.0 A @ TT = 75 °C), thermal resistance (25 K/W), fast recovery time (150 ns), and SMB package compatibility with automated SMT assembly.

Technical Context

This device is a single-phase, glass-passivated silicon junction rectifier optimized for high-efficiency switching power supplies. Its fast recovery (trr = 150 ns) minimizes switching losses during turn-off, while low VF (1.3 V @ 3.0 A) reduces conduction loss under continuous load.

The SMB package provides validated thermal performance (R_JT = 25 K/W with 5.0 mm² copper pad) and supports automatic placement. Polarity is marked by cathode band; it is rated for operation from –65 °C to +150 °C and complies with UL 94V-0 flammability.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	50 V - Maximum repetitive reverse voltage before breakdown; sets safe operating limit in 36–48 V DC bus or 35 V RMS AC input stages.
I_O	3.0 A @ T_T = 75 °C - Continuous average forward current rating; defines usable output capacity in thermally constrained PCB layouts.
V_FM	1.3 V @ I_F = 3.0 A - Forward voltage drop directly impacts conduction loss (P_cond ≈ 3.9 W) and thermal design margin.
t_rr	150 ns - Reverse recovery time determines switching loss in high-frequency rectifiers (e.g., 100–500 kHz SMPS).
R_JT	25 K/W - Junction-to-terminal thermal resistance measured on 5.0 mm² copper pad; enables accurate junction temperature estimation under load.
I_FSM	100 A (8.3 ms half-sine) - Surge rating supports inrush current handling during cold-start of capacitive-input supplies.

Pinout & Package

SMB (DO-214AA) surface-mount package: molded plastic case with solder-plated terminals; cathode identified by band; weight ≈ 0.09 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Input terminal for forward conduction	Connected to AC source or transformer secondary; must withstand full reverse voltage when reverse-biased.
Cathode	Output terminal for forward conduction	Connected to bulk capacitor or load; polarity marking (band) ensures correct orientation during automated placement.

Key Features

Feature	Design Value
Fast recovery time	150 ns - Enables efficient operation in 100–500 kHz switch-mode power supplies without excessive switching loss.
Low forward voltage	1.3 V @ 3.0 A - Reduces conduction loss by ~15% vs. standard recovery rectifiers with VF > 1.5 V at same current.
Glass passivated die	Enhanced moisture and contamination resistance - improves long-term reliability in humid or industrial environments.
UL 94V-0 rated plastic	Self-extinguishing housing material - satisfies safety requirements for enclosed consumer and industrial power supplies.

Applications

AC/DC Adapter Rectification

LED Driver Input Stage

Use Scenario: 24 V output wall adapter with bridge rectifier and flyback controller.

IC Role / Device Role / Timing Role: Fast recovery rectifier in output synchronous rectification or input bridge leg.

Use Value: 150 ns t_rr limits reverse recovery ringing, reducing EMI and improving efficiency over standard rectifiers.

Use Scenario: Constant-current LED driver for commercial lighting with 36 V nominal bus.

IC Role / Device Role / Timing Role: Output rectifier delivering regulated DC to LED string.

Use Value: 3.0 A I_O and 1.3 V V_FM support high-lumen designs while maintaining thermal headroom on compact PCBs.

Industrial Sensor Power Supply

USB-C PD Auxiliary Rail

Use Scenario: Isolated 12 V auxiliary supply for PLC I/O modules in factory automation.

IC Role / Device Role / Timing Role: Primary-side rectifier in low-power flyback converter.

Use Value: UL 94V-0 housing and –65 °C to +150 °C rating ensure compliance and reliability in wide-temperature industrial enclosures.

Use Scenario: 5 V/3 A auxiliary rail in multi-port USB-C PD charger with shared transformer winding.

IC Role / Device Role / Timing Role: Secondary-side rectifier handling burst-mode and continuous conduction.

Use Value: 100 A I_FSM withstands repeated inrush events during port negotiation and load insertion.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH3L06S	600 V V_RRM, 3.0 A I_O, 75 ns t_rr, TO-277 package	Higher voltage rating; faster recovery; larger footprint and higher R_θJL	Select when system requires >100 V blocking or <100 ns recovery; verify PCB pad layout and thermal relief.
ES3A	50 V V_RRM, 3.0 A I_O, 35 ns t_rr, SMB package	Same voltage/current rating but significantly faster recovery; higher cost and lower surge rating (60 A)	Prefer for ultra-low-noise or high-frequency (>1 MHz) designs where 150 ns trr causes measurable loss or EMI.

Compared with RS3A-13-F, STTH3L06S trades voltage headroom and speed for thermal and board-space penalties, while ES3A delivers superior dynamic performance at reduced surge robustness - choice depends on whether voltage margin, EMI control, or inrush resilience dominates the design priority.

Availability

RS3A-13-F is available at Aetrix Electronics and suitable for AC/DC adapters, LED drivers, industrial sensor power supplies, and USB-C PD auxiliary rails requiring stable component supply and consistent SMB package sourcing.

Supply support for RS3A-13-F 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-performance, high-reliability components for power management and signal integrity.

The RS3x series belongs to Diodes' fast recovery rectifier product line, engineered for high-efficiency, compact AC/DC conversion in consumer, industrial, and lighting applications where thermal density and EMI control are critical.

FAQ

What is the maximum junction temperature for RS3A-13-F?

The absolute maximum junction temperature is +150 °C, with storage temperature matching this range (–65 °C to +150 °C). Derating begins at terminal temperature >75 °C per Figure 1; sustained operation above 125 °C requires thermal modeling using R_JT = 25 K/W and actual power dissipation.

Can RS3A-13-F replace a standard recovery rectifier in an existing 50 V design?

Yes - RS3A-13-F is a direct drop-in replacement for standard recovery rectifiers rated at 50 V and 3 A in SMB package, provided the circuit does not rely on slower recovery for snubber function. Its 150 ns t_rr reduces switching loss and EMI, but may require minor layout review if parasitic ringing was previously damped by slower devices.

Is RS3A-13-F suitable for use in a capacitive-input filter stage?

No - the datasheet explicitly states "For capacitive load, derate current by 20%." At full 3.0 A rating, capacitive-input operation would exceed thermal limits due to high peak currents; use only in resistive or inductive loads, or reduce I_O to ≤2.4 A with verified thermal margin.

Does RS3A-13-F have lead-free and RoHS-compliant construction?

Yes - RS3A-13-F is manufactured with lead-free terminations and complies with RoHS Directive 2011/65/EU and REACH SVHC regulations. The "-F" suffix denotes lead-free, halogen-free, and green-compliant packaging per Diodes Incorporated's standard environmental specifications.

RS3A-13-F Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: DO-214AB, SMC

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 50 V

Current - Average Rectified (Io):: 3A

Voltage - Forward (Vf) (Max) @ If:: 1.3 V @ 3 A

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

Reverse Recovery Time (trr):: 150 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 50 V

Capacitance @ Vr, F:: 50pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SMC

Operating Temperature - Junction:: -65°C ~ 150°C

RS3A-13-F FAQ

1.How can I place an order for RS3A-13-F through Aetrix?

Please submit a Request for Quotation (RFQ) for RS3A-13-F 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 RS3A-13-F reliable?

The price and inventory of RS3A-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS3A-13-F is usually 5 days.

3.What payment methods are accepted for RS3A-13-F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS3A-13-F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for RS3A-13-F?

RS3A-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your RS3A-13-F 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 RS3A-13-F?

For technical support, including RS3A-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS3A-13-F requirements.

6.How does Aetrix verify that RS3A-13-F is sourced from the original manufacturer or authorized distributors?

All RS3A-13-F 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 RS3A-13-F meets industry standards.

7.What is the process for return or replacement of RS3A-13-F?

All RS3A-13-F units undergo pre-shipment inspection (PSI). If there is an issue with RS3A-13-F, 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 RS3A-13-F part is unused and in its original packaging.

Return procedure for RS3A-13-F:

1.Submit a request within 90 days.

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

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