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

Taiwan Semiconductor Corporation RS3JB-T R5G

Name: RS3JB-T R5G
Brand: Taiwan Semiconductor Corporation
SKU: RS3JB-T R5G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: RS3JB-T R5G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AA, SMB

Datasheet:: RS3JB-T R5G.pdf

Description:: DIODE GEN PURP 600V 3A DO214AA

Quantity:: RFQ Add To RFQ list

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Inventory:1,240

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Product details

Overview

RS3JB-T from Taiwan Semiconductor is a 3A, 600V fast recovery surface-mount rectifier in DO-214AA (SMB) package, featuring 250 ns reverse recovery time, 1.10 V forward voltage at 3.0A/25°C, and 80A surge current capability. It serves as a primary AC/DC input rectifier in compact switching power supplies.

For engineers reviewing the RS3JB-T datasheet, RS3JB-T pinout, RS3JB-T application, or RS3JB-T equivalent, key selection criteria include repetitive peak reverse voltage (600 V), thermal resistance (R_θJL = 20 °C/W), junction temperature range (–55 to +150 °C), and low reverse leakage (≤5 µA at 25 °C).

Technical Context

This device is a single-die, glass-passivated silicon PN junction rectifier optimized for high-frequency switching operation. Its 250 ns trr and low Qrr support efficient operation in 50–500 kHz SMPS topologies without requiring snubbers in many cases.

The DO-214AA (SMB) package provides robust thermal performance with R_θJL = 20 °C/W and R_θJA = 78 °C/W on a 10 mm × 10 mm Cu pad, enabling reliable 3 A continuous conduction in space-constrained industrial and consumer power designs.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	600 V - Withstands up to 600 V repetitive reverse voltage, suitable for 400 V DC bus applications with safety margin.
I_F	3 A - Continuous forward current rating at T_A = 75 °C on standard PCB layout.
t_rr	250 ns - Fast recovery enables high-frequency operation with reduced switching losses in flyback and boost converters.
V_F @ 3 A / 25 °C	1.10 V (typ), 1.30 V (max) - Low conduction loss improves efficiency in medium-power rectification stages.
I_R @ 600 V / 25 °C	≤5 µA - Minimal leakage preserves standby power budget in energy-sensitive designs.
R_θJL	20 °C/W - Enables direct heat transfer to PCB copper, supporting thermal design without heatsinks below 2.5 W dissipation.

Pinout & Package

Package: DO-214AA (SMB), surface-mount, cathode-indicated by band, matte tin-plated leads, moisture sensitivity level 1.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Input terminal for forward conduction	Connected to AC source or transformer secondary; must handle full I_F and I_FSM surge.
Cathode	Output terminal for forward conduction	Connected to bulk capacitor or output rail; polarity marking ensures correct orientation during automated placement.

Key Features

Feature	Design Value
Glass passivated junction	Enhances long-term reliability under humidity and thermal cycling; meets J-STD-020 MSL Level 1.
Low reverse leakage (≤5 µA)	Reduces standby power loss in offline adapters and improves hold-up time stability.
Fast recovery (250 ns)	Minimizes reverse recovery charge (Q_rr) and associated switching losses in high-frequency converters.
UL 94V-0 molding compound	Ensures flame-retardant compliance for end-equipment safety certification (e.g., UL/EN 62368-1).

Applications

AC/DC Adapter Input Rectification	Industrial DC-DC Converter Front-End
Use Scenario: 600 V-rated rectification of 230 VAC mains after bridge configuration in 30–60 W wall adapters. IC Role / Device Role / Timing Role: Primary unidirectional current path converting AC input to pulsating DC before bulk capacitor smoothing. Use Value: 600 V V_RRM provides 2× safety margin over 325 V peak line voltage; 250 ns t_rr prevents excessive diode switching loss at 100 kHz operation.	Use Scenario: Input stage rectification in 48 V input industrial DC-DC modules handling 3 A continuous load. IC Role / Device Role / Timing Role: High-reliability power conversion element in harsh ambient environments with wide temperature cycling. Use Value: –55 to +150 °C operating range and MSL Level 1 ensure robustness in factory automation systems; R_θJL = 20 °C/W simplifies thermal management on 2 oz copper PCBs.
LED Driver Bulk Rectification	UPS Inverter Output Stage
Use Scenario: Off-line LED driver with passive PFC, where RS3JB-T rectifies 230 VAC before valley-fill circuitry. IC Role / Device Role / Timing Role: Medium-speed, medium-current rectifier balancing cost, efficiency, and size in cost-sensitive lighting systems. Use Value: 1.10 V V_F at 3 A reduces conduction loss vs. standard recovery diodes; DO-214AA footprint enables high-density layout.	Use Scenario: Bidirectional rectification in UPS inverter output filtering, handling regenerated energy during battery charging cycles. IC Role / Device Role / Timing Role: Reverse-biased blocking element during regeneration, requiring low IR and stable V_RRM over lifetime. Use Value: ≤150 µA leakage at 125 °C maintains system efficiency during elevated ambient conditions; glass passivation ensures long-term parameter stability.

AC/DC Adapter Input Rectification

Industrial DC-DC Converter Front-End

Use Scenario: 600 V-rated rectification of 230 VAC mains after bridge configuration in 30–60 W wall adapters.

IC Role / Device Role / Timing Role: Primary unidirectional current path converting AC input to pulsating DC before bulk capacitor smoothing.

Use Value: 600 V V_RRM provides 2× safety margin over 325 V peak line voltage; 250 ns t_rr prevents excessive diode switching loss at 100 kHz operation.

Use Scenario: Input stage rectification in 48 V input industrial DC-DC modules handling 3 A continuous load.

IC Role / Device Role / Timing Role: High-reliability power conversion element in harsh ambient environments with wide temperature cycling.

Use Value: –55 to +150 °C operating range and MSL Level 1 ensure robustness in factory automation systems; R_θJL = 20 °C/W simplifies thermal management on 2 oz copper PCBs.

LED Driver Bulk Rectification

UPS Inverter Output Stage

Use Scenario: Off-line LED driver with passive PFC, where RS3JB-T rectifies 230 VAC before valley-fill circuitry.

IC Role / Device Role / Timing Role: Medium-speed, medium-current rectifier balancing cost, efficiency, and size in cost-sensitive lighting systems.

Use Value: 1.10 V V_F at 3 A reduces conduction loss vs. standard recovery diodes; DO-214AA footprint enables high-density layout.

Use Scenario: Bidirectional rectification in UPS inverter output filtering, handling regenerated energy during battery charging cycles.

IC Role / Device Role / Timing Role: Reverse-biased blocking element during regeneration, requiring low IR and stable V_RRM over lifetime.

Use Value: ≤150 µA leakage at 125 °C maintains system efficiency during elevated ambient conditions; glass passivation ensures long-term parameter stability.

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	Same 600 V V_RRM, 3 A I_F, but 150 ns t_rr; VF = 1.15 V @ 3 A/25 °C; TO-277 package.	Lower trr supports higher frequency (>300 kHz); TO-277 offers better thermal dissipation but requires different footprint.	Select when faster recovery or lower thermal resistance is required, and board layout allows TO-277 rework.
ON Semi MUR3060CT	Dual common-cathode configuration; 600 V per diode, 3 A avg per leg; VF = 1.25 V @ 3 A/25 °C; TO-220AC package.	Provides dual-diode functionality for center-tapped or synchronous rectification; larger through-hole package limits density.	Choose for dual-diode topology needs or legacy through-hole assembly; not drop-in for RS3JB-T's SMB footprint.

Compared with STTH3L06S and MUR3060CT, RS3JB-T delivers optimal balance of speed (250 ns), thermal performance (R_θJL = 20 °C/W), and compact DO-214AA packaging for cost-sensitive, space-constrained SMPS designs-without requiring footprint changes or thermal redesign.

Availability

RS3JB-T is available at Aetrix Electronics and suitable for AC/DC adapters, industrial DC-DC converters, and LED drivers requiring stable component supply, consistent parametric performance, and RoHS-compliant manufacturing.

Supply support for RS3JB-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

Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global power, automotive, and industrial markets since 1979.

The RS3x series is designed specifically for high-efficiency, surface-mount AC/DC and DC/DC power conversion, emphasizing fast recovery, thermal robustness, and automated assembly compatibility in cost-sensitive applications.

FAQ

What is the maximum junction temperature rating for RS3JB-T?

The RS3JB-T has a maximum junction temperature (T_J) rating of +150 °C, with a minimum of –55 °C. This wide operating range supports deployment in industrial environments where ambient temperatures exceed 85 °C, provided thermal design maintains junction temperature within limits using the specified R_θJL = 20 °C/W path to PCB copper.

Does RS3JB-T meet RoHS and halogen-free requirements?

Yes, RS3JB-T is RoHS compliant and halogen-free per IEC 61249-2-21. The molding compound is UL 94V-0 rated, and terminals are matte tin-plated to meet J-STD-002 solderability standards-ensuring environmental compliance and process compatibility for lead-free reflow assembly.

What is the reverse recovery time (t_rr) specification for RS3JB-T?

The RS3JB-T has a typical reverse recovery time (t_rr) of 250 ns under test conditions of I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A. This value is confirmed in the official Taiwan Semiconductor datasheet Version C2102 and enables efficient operation in switching power supplies up to 250 kHz without significant recovery-related losses.

Can RS3JB-T be used as a direct replacement for RS3DB-T or RS3GB-T?

No, RS3JB-T is not a direct replacement for RS3DB-T (200 V) or RS3GB-T (400 V) due to its higher 600 V V_RRM rating and correspondingly higher forward voltage. Substituting it into a 200 V or 400 V design may increase conduction loss unnecessarily and does not provide functional benefit unless higher voltage margin is explicitly required.

What is the surge current rating (I_FSM) for RS3JB-T at different pulse durations?

The RS3JB-T supports 80 A surge current (I_FSM) for t = 8.3 ms (half-sine), and 224 A for t = 1.0 ms. These ratings reflect short-duration overload capability during power-up or transient events, and must be verified against actual circuit stress using the device's thermal impedance curves and PCB layout.

RS3JB-T R5G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-214AA, SMB

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 600 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):: 250 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 600 V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

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

RS3JB-T R5G FAQ

1.How can I place an order for RS3JB-T R5G through Aetrix?

Please submit a Request for Quotation (RFQ) for RS3JB-T R5G 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 RS3JB-T R5G reliable?

The price and inventory of RS3JB-T R5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS3JB-T R5G is usually 5 days.

3.What payment methods are accepted for RS3JB-T R5G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS3JB-T R5G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for RS3JB-T R5G?

RS3JB-T R5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your RS3JB-T R5G 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 RS3JB-T R5G?

For technical support, including RS3JB-T R5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS3JB-T R5G requirements.

6.How does Aetrix verify that RS3JB-T R5G is sourced from the original manufacturer or authorized distributors?

All RS3JB-T R5G 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 RS3JB-T R5G meets industry standards.

7.What is the process for return or replacement of RS3JB-T R5G?

All RS3JB-T R5G units undergo pre-shipment inspection (PSI). If there is an issue with RS3JB-T R5G, 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 RS3JB-T R5G part is unused and in its original packaging.

Return procedure for RS3JB-T R5G:

1.Submit a request within 90 days.

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

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