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Home > Products > Discrete Semiconductor Products > Diodes > Bridge Rectifiers

Taiwan Semiconductor Corporation RYBS30M

Name: RYBS30M
Brand: Taiwan Semiconductor Corporation
SKU: RYBS30M
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: RYBS30M

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Bridge Rectifiers

Package:: 4-SMD, Flat Leads

Datasheet:: RYBS30M.pdf

Description:: BRIDGE RECT 1PHASE 1KV 3A YBS

Quantity:: RFQ Add To RFQ list

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Product details

Overview

RYBS30M from Taiwan Semiconductor is a 3A, 1000V fast recovery quad bridge rectifier in YBS package, featuring 300 ns reverse recovery time, 1.10 V forward voltage at 3 A/25°C, and 90 A surge rating. It serves as the AC–DC input stage in compact high-efficiency SMPS for industrial adapters and LED drivers.

For engineers reviewing the RYBS30M datasheet, RYBS30M pinout, RYBS30M application, or RYBS30M equivalent, key selection criteria include peak repetitive reverse voltage (1000 V), thermal resistance (R_θJL = 13 °C/W), junction temperature range (−55 to +150 °C), and UL recognition (E-326854).

Technical Context

The RYBS30M integrates four fast recovery diodes in a single monolithic YBS package with glass-passivated junctions and matte tin-plated leads. Its 300 ns trr and low I²t rating (33.61 A²s) support high-frequency switching up to 100 kHz in flyback and forward converters.

Thermal performance is characterized with R_θJC = 11 °C/W and R_θJA = 58 °C/W on a 16 mm × 16 mm Cu pad PCB. The device operates across −55 to +150 °C junction temperature and meets JESD201 Class 1 whisker resistance and J-STD-020 Level 1 moisture sensitivity.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	1000 V - Withstands peak reverse voltage in universal-input (85–265 VAC) SMPS front ends without breakdown
I_F	3 A continuous - Supports output power up to ~75 W at 12 V with margin in open-frame adapters
t_rr	300 ns - Enables efficient operation at 60–100 kHz switching frequencies with low switching loss
R_θJL	13 °C/W - Allows direct heat transfer to PCB copper, enabling compact heatsinkless designs
I_FSM	90 A (8.3 ms) - Handles cold-start inrush surges in offline power supplies without failure
V_F @ 3 A/25°C	1.10 V max - Limits conduction loss to ≤3.3 W per device at full load, reducing thermal stress
Junction Temp Range	−55 to +150 °C - Rated for operation in enclosed industrial enclosures and high-ambient lighting fixtures

Pinout & Package

Package: YBS - Surface-mount, 4-terminal quad bridge configuration with integrated anode-cathode pairs; case meets UL 94V-0, weight 0.220 g.

Pin/Terminal	Circuit Role	Design Meaning
AC1	Input AC terminal 1	Connects to one leg of AC input; symmetrical with AC2 for full-wave bridge input
AC2	Input AC terminal 2	Second AC input node; polarity marked on top surface per device marking diagram
+ (Anode Common)	Positive DC output	Internal connection point of all four diode anodes; delivers rectified positive rail
− (Cathode Common)	Negative DC output	Internal connection point of all four diode cathodes; serves as return path and ground reference

Key Features

Feature	Design Value
Glass passivated junction	Enables stable leakage current (<5 µA @ 25°C, <167 µA @ 125°C) and long-term reliability under humid conditions
UL Recognized (E-326854)	Validates safety compliance for end-equipment certification without additional system-level testing
Moisture sensitivity Level 1	Eliminates bake requirements before reflow; supports standard SMT assembly without special handling
RoHS & halogen-free	Meets IEC 61249-2-21 and global environmental directives for consumer and industrial shipments
Matte tin-plated leads	Ensures solderability per J-STD-002 and prevents intermetallic degradation during thermal cycling

Applications

Industrial Adapters	LED Lighting Drivers
Use Scenario: Compact 24 V/3 A wall-mounted adapter powering PLC I/O modules in factory automation cabinets. IC Role / Device Role / Timing Role: Quad bridge rectifier converting 100–240 VAC input to unregulated DC bus prior to PWM controller and secondary-side regulation. Use Value: 1000 V V_RRM provides 2× safety margin over 350 VDC rectified peak; 300 ns t_rr minimizes EMI in densely packed enclosures.	Use Scenario: Constant-current LED driver for outdoor streetlights operating continuously at 55 °C ambient. IC Role / Device Role / Timing Role: Input-stage bridge delivering DC bus to PFC controller and isolated flyback stage. Use Value: −55 to +150 °C junction rating ensures lifetime stability; R_θJL = 13 °C/W enables thermal coupling to aluminum housing without extra heatsinking.
Switching Mode Power Supplies	Consumer AC/DC Adapters
Use Scenario: 65 W laptop adapter with active PFC and LLC resonant output stage. IC Role / Device Role / Timing Role: Primary-side full-wave rectification before boost PFC stage; handles 50/60 Hz and high-frequency ripple. Use Value: 90 A I_FSM withstands 10× inrush during cold start; low C_J (35 pF) reduces capacitive coupling noise into control circuitry.	Use Scenario: USB-C PD 30 W travel adapter with dual-output (5 V/3 A, 9 V/3.3 A) and foldback protection. IC Role / Device Role / Timing Role: Input rectifier in compact DPAK-equivalent YBS footprint, enabling high power density layout. Use Value: YBS package allows automated placement and reflow compatibility; UL recognition accelerates regional safety approvals.

Industrial Adapters

LED Lighting Drivers

Use Scenario: Compact 24 V/3 A wall-mounted adapter powering PLC I/O modules in factory automation cabinets.

IC Role / Device Role / Timing Role: Quad bridge rectifier converting 100–240 VAC input to unregulated DC bus prior to PWM controller and secondary-side regulation.

Use Value: 1000 V V_RRM provides 2× safety margin over 350 VDC rectified peak; 300 ns t_rr minimizes EMI in densely packed enclosures.

Use Scenario: Constant-current LED driver for outdoor streetlights operating continuously at 55 °C ambient.

IC Role / Device Role / Timing Role: Input-stage bridge delivering DC bus to PFC controller and isolated flyback stage.

Use Value: −55 to +150 °C junction rating ensures lifetime stability; R_θJL = 13 °C/W enables thermal coupling to aluminum housing without extra heatsinking.

Switching Mode Power Supplies

Consumer AC/DC Adapters

Use Scenario: 65 W laptop adapter with active PFC and LLC resonant output stage.

IC Role / Device Role / Timing Role: Primary-side full-wave rectification before boost PFC stage; handles 50/60 Hz and high-frequency ripple.

Use Value: 90 A I_FSM withstands 10× inrush during cold start; low C_J (35 pF) reduces capacitive coupling noise into control circuitry.

Use Scenario: USB-C PD 30 W travel adapter with dual-output (5 V/3 A, 9 V/3.3 A) and foldback protection.

IC Role / Device Role / Timing Role: Input rectifier in compact DPAK-equivalent YBS footprint, enabling high power density layout.

Use Value: YBS package allows automated placement and reflow compatibility; UL recognition accelerates regional safety approvals.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
GBU4K (ON Semiconductor)	Same 1000 V V_RRM, 4 A I_F, but GBU package (larger, through-hole); t_rr = 500 ns	Requires PCB redesign for through-hole mounting; higher trr increases switching loss above 50 kHz	Choose when legacy through-hole assembly or higher current margin is required
GBL04 (Vishay)	YBS-compatible surface-mount; 4 A I_F, 1000 V V_RRM, t_rr = 250 ns; no UL recognition	Offers faster recovery but lacks UL file-requires additional system-level safety validation	Choose when trr < 250 ns is critical and UL listing is not mandated by end-equipment standard

Compared with GBU4K and GBL04, the RYBS30M uniquely combines UL recognition, YBS SMT compatibility, and 300 ns trr in a 3 A rating-making it optimal for space-constrained, certified industrial and lighting adapters where safety compliance and thermal efficiency are jointly prioritized.

Availability

RYBS30M is available at Aetrix Electronics and suitable for industrial adapters, LED lighting drivers, and switching mode power supplies requiring stable component supply, consistent parametric performance, and full traceability across production batches.

Supply support for RYBS30M 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 Taiwanese manufacturer specializing in discrete power semiconductors, including rectifiers, TVS diodes, and MOSFETs, with ISO/TS 16949 and AEC-Q101 qualified lines.

The RYBS30M belongs to TSC's fast recovery bridge rectifier product line, engineered specifically for high-efficiency, compact AC/DC conversion in industrial and commercial power supplies where reliability, thermal performance, and regulatory compliance are critical.

FAQ

What is the maximum junction temperature rating for RYBS30M?

The RYBS30M has a maximum junction temperature (T_J) of +150 °C and a minimum of −55 °C. This wide operating range allows reliable use in thermally demanding environments such as enclosed LED drivers and industrial power supplies. The device's R_θJL of 13 °C/W enables effective heat dissipation to the PCB, helping maintain safe junction temperatures even under sustained 3 A load in ambient temperatures up to 70 °C. Thermal derating curves in the RYBS30M datasheet confirm usable current down to 1.5 A at 125 °C ambient.

Does RYBS30M meet RoHS and halogen-free requirements?

Yes, the RYBS30M is RoHS compliant and halogen-free per IEC 61249-2-21. Taiwan Semiconductor confirms this in the official datasheet revision B2103. The matte tin-plated leads and UL 94V-0 molding compound further support environmentally regulated markets. These certifications apply directly to the RYBS30M unit-not just the family-and are verified in the product's material declaration and test reports. No exemptions or exceptions are applied to the RYBS30M.

What is the marking code printed on the RYBS30M device body?

The RYBS30M is marked "RY30M" on its top surface, as specified in the Absolute Maximum Ratings table of the official datasheet. This abbreviated marking is used due to space constraints on the YBS package. The full orderable part number RYBS30M corresponds to this marking, and the date code (YW) and factory code (F) appear adjacent per the Marking Diagram in datasheet section 4. No alternate markings or revisions are assigned to the RYBS30M.

Is RYBS30M suitable for use in medical equipment power supplies?

No, the RYBS30M is explicitly not designed for medical, life-saving, or life-sustaining applications, as stated in the official notice on page 5 of the RYBS30M datasheet. Taiwan Semiconductor disclaims liability for such uses, and the device lacks the extended reliability validation, enhanced isolation testing, or specific safety certifications (e.g., IEC 60601-1) required for medical-grade power components. For medical applications, engineers must select parts explicitly rated and documented for those use cases-not the RYBS30M.

What is the reverse recovery time (t_rr) specification for RYBS30M, and under what test conditions?

The RYBS30M has a maximum reverse recovery time (t_rr) of 300 ns, measured under the conditions: I_F = 0.5 A, I_R = 1.0 A, I_rr = 0.25 A, and T_J = 25 °C. This value is confirmed in the Electrical Specifications table of the official datasheet. The fast t_rr contributes directly to reduced switching losses in high-frequency SMPS designs. Note that t_rr increases with junction temperature-designers should consult the RYBS30M characteristics curves for derating guidance above 25 °C.

RYBS30M Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: 4-SMD, Flat Leads

Packaging:: Tape & Reel (TR)

Product Status:: Active

Diode Type:: Single Phase

Technology:: Standard

Voltage - Peak Reverse (Max):: 1 kV

Current - Average Rectified (Io):: 3 A

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

Current - Reverse Leakage @ Vr:: 5 µA @ 1000 V

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: YBS

RYBS30M FAQ

1.How can I place an order for RYBS30M through Aetrix?

Please submit a Request for Quotation (RFQ) for RYBS30M 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 RYBS30M reliable?

The price and inventory of RYBS30M are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RYBS30M is usually 5 days.

3.What payment methods are accepted for RYBS30M?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RYBS30M transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for RYBS30M?

RYBS30M orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your RYBS30M 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 RYBS30M?

For technical support, including RYBS30M datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RYBS30M requirements.

6.How does Aetrix verify that RYBS30M is sourced from the original manufacturer or authorized distributors?

All RYBS30M 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 RYBS30M meets industry standards.

7.What is the process for return or replacement of RYBS30M?

All RYBS30M units undergo pre-shipment inspection (PSI). If there is an issue with RYBS30M, 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 RYBS30M part is unused and in its original packaging.

Return procedure for RYBS30M:

1.Submit a request within 90 days.

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

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