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

Vishay General Semiconductor - Diodes Division RS2A-E3/5BT

Name: RS2A-E3/5BT
Brand: Vishay General Semiconductor - Diodes Division
SKU: RS2A-E3/5BT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: RS2A-E3/5BT

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: Single Diodes

Package:: DO-214AA, SMB

Datasheet:: RS2A-E3/5BT.pdf

Description:: DIODE GEN PURP 50V 1.5A DO214AA

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Product details

Overview

RS2A-E3/5BT from Vishay General Semiconductor is a surface-mount fast switching rectifier diode in SMB (DO-214AA) package, rated for 50 V maximum repetitive peak reverse voltage (V_RRM), 1.5 A average forward current (I_F(AV)), and 150 ns reverse recovery time (t_rr). It serves as a freewheeling or output rectifier in DC/DC converters and AC/DC power supplies for consumer and industrial applications.

For engineers reviewing the RS2A-E3/5BT datasheet, RS2A-E3/5BT pinout, RS2A-E3/5BT application, or RS2A-E3/5BT equivalent, key selection criteria include its 1.3 V forward voltage at 1.5 A, 50 A surge capability, AEC-Q101 qualification eligibility (via HE3 suffix), RoHS-compliant matte tin terminals, and MSL Level 1 moisture sensitivity rating.

Technical Context

This device is a single silicon junction diode with glass passivated pellet construction, optimized for high-efficiency fast switching in medium-power rectification. Its 150 ns reverse recovery time and low 1.3 V forward voltage support reduced conduction and switching losses in 50–100 kHz converter topologies.

The SMB (DO-214AA) package provides thermal resistance of 55 °C/W (junction-to-ambient, PCB-mounted on 7 mm × 7 mm copper pad) and 18 °C/W (junction-to-lead), enabling reliable operation up to 150 °C junction temperature under sustained 1.5 A load.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	50 V - supports input rectification in ≤35 V RMS AC or ≤50 V DC blocking applications
I_F(AV)	1.5 A at T_L = 100 °C - continuous output rectification in compact 5–15 W SMPS designs
t_rr	150 ns - enables efficient operation in flyback and forward converters up to 100 kHz
V_F	1.3 V at I_F = 1.5 A - limits conduction loss to ~1.95 W per diode at full load
I_FSM	50 A (8.3 ms half-sine) - withstands inrush and transient overcurrent without failure
T_J max.	150 °C - allows use in thermally constrained environments with derated current above 100 °C
C_J	20 pF at 4.0 V, 1 MHz - minimizes capacitive coupling noise in high-frequency switching nodes

Pinout & Package

SMB (DO-214AA) surface-mount package with cathode indicated by color band; leads are matte tin plated, solderable per J-STD-002 and JESD 22-B102, and qualified to JESD 201 Class 2 whisker test.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry terminal	Connected to lower-potential side (e.g., transformer secondary center-tap or switch node return)
Cathode	Forward current exit terminal	Marked with color band; connects to output rail or inductor input in freewheeling path

Key Features

Feature	Design Value
Fast switching performance	150 ns t_rr enables high-frequency operation with low switching loss in DC/DC converters
Glass passivated junction	Enhances reliability and humidity resistance versus non-passivated alternatives
MSL Level 1 rating	Allows unlimited floor life and reflow at 260 °C peak without baking preconditioning
AEC-Q101 qualification path	HE3 suffix variants meet automotive stress testing requirements for under-hood modules
Low profile SMB package	0.220" height enables use in space-constrained consumer power adapters and LED drivers

Applications

AC/DC Adapter Rectification	DC/DC Converter Output Stage
Use Scenario: Secondary-side rectification in 5–12 V, 5–15 W wall adapters using flyback topology. IC Role / Device Role / Timing Role: Fast-recovery output rectifier replacing slower general-purpose diodes to reduce switching loss. Use Value: 150 ns t_rr and 1.3 V V_F improve efficiency by ≥2% vs. standard 1N400x diodes at 65 kHz.	Use Scenario: Synchronous rectification assist or freewheeling path in buck converters for set-top boxes. IC Role / Device Role / Timing Role: Freewheeling diode clamping inductor current during high-side switch off-time. Use Value: 50 A I_FSM handles peak inductor current surges during startup or overload without degradation.
Automotive Body Control Module Supply	Industrial Sensor Power Rail
Use Scenario: Input rectification for 12 V nominal DC-DC supply in BCMs with cold-crank tolerance. IC Role / Device Role / Timing Role: Primary rectifier in isolated auxiliary supply derived from vehicle battery. Use Value: AEC-Q101-qualified HE3 variants (e.g., RS2AHE3_A) support automotive qualification; RS2A-E3/5BT serves as commercial-grade baseline.	Use Scenario: Reverse polarity protection and ESD clamp in 24 V sensor interface power inputs. IC Role / Device Role / Timing Role: Low-leakage (5 µA @ 25 °C) blocking diode preventing backfeed during hot-swap events. Use Value: 5.0 µA I_R at 25 °C ensures minimal standby current drain in always-on industrial sensors.

AC/DC Adapter Rectification

DC/DC Converter Output Stage

Use Scenario: Secondary-side rectification in 5–12 V, 5–15 W wall adapters using flyback topology.

IC Role / Device Role / Timing Role: Fast-recovery output rectifier replacing slower general-purpose diodes to reduce switching loss.

Use Value: 150 ns t_rr and 1.3 V V_F improve efficiency by ≥2% vs. standard 1N400x diodes at 65 kHz.

Use Scenario: Synchronous rectification assist or freewheeling path in buck converters for set-top boxes.

IC Role / Device Role / Timing Role: Freewheeling diode clamping inductor current during high-side switch off-time.

Use Value: 50 A I_FSM handles peak inductor current surges during startup or overload without degradation.

Automotive Body Control Module Supply

Industrial Sensor Power Rail

Use Scenario: Input rectification for 12 V nominal DC-DC supply in BCMs with cold-crank tolerance.

IC Role / Device Role / Timing Role: Primary rectifier in isolated auxiliary supply derived from vehicle battery.

Use Value: AEC-Q101-qualified HE3 variants (e.g., RS2AHE3_A) support automotive qualification; RS2A-E3/5BT serves as commercial-grade baseline.

Use Scenario: Reverse polarity protection and ESD clamp in 24 V sensor interface power inputs.

IC Role / Device Role / Timing Role: Low-leakage (5 µA @ 25 °C) blocking diode preventing backfeed during hot-swap events.

Use Value: 5.0 µA I_R at 25 °C ensures minimal standby current drain in always-on industrial sensors.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1L06U	600 V V_RRM, 1.05 V V_F at 1 A, 75 ns t_rr, SMA package	Higher voltage rating but lower current (1.0 A I_F(AV)) and smaller thermal mass	Select when higher V_RRM and faster t_rr are required, accepting reduced average current handling
ON Semi MUR120E	200 V V_RRM, 1.15 V V_F at 1 A, 35 ns t_rr, DO-41 through-hole	Ultra-fast recovery but through-hole mounting and lower V_RRM margin than RS2A-E3/5BT	Choose for legacy through-hole designs needing sub-50 ns t_rr; not drop-in compatible due to package and pinout

Compared with STTH1L06U and MUR120E, RS2A-E3/5BT offers optimal balance of 50 V rating, 1.5 A current capacity, SMB surface-mount compatibility, and cost-effective fast recovery-making it preferred for compact, medium-power commercial power supplies where 150 ns t_rr suffices.

Availability

RS2A-E3/5BT is available at Aetrix Electronics and suitable for AC/DC adapters, DC/DC converter output stages, industrial sensor power rails, and automotive body control module supplies requiring stable component supply and RoHS-compliant manufacturing.

Supply support for RS2A-E3/5BT 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

Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.

The RS2A-E3/5BT belongs to Vishay's RS2x fast switching rectifier family, engineered for high-frequency power conversion in space- and thermally-constrained commercial and automotive systems.

FAQ

What is the maximum junction temperature rating for RS2A-E3/5BT?

The RS2A-E3/5BT has a specified operating junction temperature range of –55 °C to +150 °C. This allows deployment in high-ambient environments such as enclosed power adapters or under-hood automotive modules when thermally managed via PCB copper area. Derating curves in the datasheet confirm 1.5 A I_F(AV) is valid only up to 100 °C lead temperature; operation near 150 °C requires proportional current reduction.

Is RS2A-E3/5BT RoHS-compliant and halogen-free?

Yes, RS2A-E3/5BT carries the "E3" suffix, indicating full RoHS compliance per EU Directive 2011/65/EU. It is not halogen-free; for halogen-free compliance, the "M3" suffix variant (e.g., RS2A-M3/5BT) must be selected. Both E3 and M3 versions feature matte tin-plated leads and meet JESD 201 Class 2 whisker resistance.

Does RS2A-E3/5BT have AEC-Q101 qualification?

No, RS2A-E3/5BT itself is not AEC-Q101 qualified. However, the RS2AHE3_A variant (with "HE3" suffix and revision code) is explicitly qualified to AEC-Q101. Engineers requiring automotive qualification should specify RS2AHE3_A/I or RS2AHE3_A/H depending on reel size, not RS2A-E3/5BT.

What is the reverse recovery time (t_rr) of RS2A-E3/5BT and how is it measured?

The RS2A-E3/5BT has a typical reverse recovery time of 150 ns, measured under conditions of I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A per the Vishay datasheet. This value reflects the time required for minority carriers to clear after forward conduction, directly impacting switching loss in hard-switched topologies like flyback and forward converters.

What is the packaging configuration for RS2A-E3/5BT?

RS2A-E3/5BT is supplied in 13-inch diameter plastic tape and reel format, with a base quantity of 3200 units per reel (package code "5BT"). The SMB (DO-214AA) device is oriented with cathode band facing outward per EIA-481 standard, enabling automated pick-and-place assembly without manual orientation verification.

RS2A-E3/5BT Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Series:: -

Package/Case:: DO-214AA, SMB

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

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

Current - Average Rectified (Io):: 1.5A

Voltage - Forward (Vf) (Max) @ If:: 1.3 V @ 1.5 A

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

Reverse Recovery Time (trr):: 150 ns

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

Capacitance @ Vr, F:: 20pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AA (SMB)

Operating Temperature - Junction:: -55°C ~ 150°C

RS2A-E3/5BT FAQ

1.How can I place an order for RS2A-E3/5BT through Aetrix?

Please submit a Request for Quotation (RFQ) for RS2A-E3/5BT 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 RS2A-E3/5BT reliable?

The price and inventory of RS2A-E3/5BT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS2A-E3/5BT is usually 5 days.

3.What payment methods are accepted for RS2A-E3/5BT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS2A-E3/5BT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for RS2A-E3/5BT?

RS2A-E3/5BT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your RS2A-E3/5BT 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 RS2A-E3/5BT?

For technical support, including RS2A-E3/5BT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS2A-E3/5BT requirements.

6.How does Aetrix verify that RS2A-E3/5BT is sourced from the original manufacturer or authorized distributors?

All RS2A-E3/5BT 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 RS2A-E3/5BT meets industry standards.

7.What is the process for return or replacement of RS2A-E3/5BT?

All RS2A-E3/5BT units undergo pre-shipment inspection (PSI). If there is an issue with RS2A-E3/5BT, 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 RS2A-E3/5BT part is unused and in its original packaging.

Return procedure for RS2A-E3/5BT:

1.Submit a request within 90 days.

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

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