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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Diode Arrays

NXP Semiconductors BYT28-300,127

Name: BYT28-300,127
Brand: NXP Semiconductors
SKU: BYT28-300,127
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BYT28-300,127

Manufacturer:: NXP Semiconductors

Category:: Diode Arrays

Package:: TO-220-3

Datasheet:: BYT28-300,127.pdf

Description:: DIODE ARRAY GP 300V 10A TO-220AB

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Inventory:1,000

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Product details

Overview

BYT28-300 from NXP Semiconductors is a dual, common-cathode ultrafast epitaxial rectifier diode in TO-220AB (SOT78) package, rated for 300 V repetitive peak reverse voltage and 10 A average output current per diode, with 60 ns maximum reverse recovery time and 1.05 V max forward voltage at 10 A - used as output rectifiers in high-frequency switched-mode power supplies.

For engineers reviewing the BYT28-300 datasheet, BYT28-300 pinout, BYT28-300 application, or BYT28-300 equivalent, this page delivers verified electrical parameters, thermal resistance data (3 K/W junction-to-mounting-base for dual conduction), soft-recovery behavior, and real-world selection guidance for high-efficiency AC/DC and DC/DC converter designs.

Technical Context

The BYT28-300 integrates two independent ultrafast epitaxial rectifier diodes sharing a common cathode terminal and mounting base, enabling compact dual-output or center-tapped transformer secondary rectification. Its soft recovery characteristics minimize EMI generation during switching transitions.

Thermal performance is optimized via low junction-to-mounting-base thermal resistance (3 K/W when both diodes conduct), direct heatsink attachment through the insulated mounting base, and low forward voltage drop (0.95 V typ at 5 A, 150 °C) to reduce conduction losses in high-duty-cycle operation.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	300 V - Maximum repetitive reverse blocking voltage per diode; defines safe operating range in flyback or forward converter secondary circuits.
I_O(AV)	10 A - Average rectified current per diode under square-wave excitation (δ = 0.5) and T_mb ≤ 115 °C; sets continuous power handling capability.
t_rr	≤ 60 ns - Reverse recovery time measured at I_F = 1 A, −dI_F/dt = 100 A/μs; enables stable operation up to ~500 kHz switching frequencies.
V_F	≤ 1.05 V at I_F = 10 A, T_j = 150 °C - Forward voltage drop directly impacts conduction loss and thermal rise in high-current output stages.
R_th(j-mb)	3 K/W - Junction-to-mounting-base thermal resistance with both diodes conducting; determines heatsink sizing requirement for thermal management.
Q_S	≤ 60 nC - Reverse recovery charge at I_F = 2 A; lower Q_S reduces switching loss and snubber stress in hard-switched topologies.

Pinout & Package

BYT28-300 uses the TO-220AB (SOT78) plastic single-ended package with insulated mounting base, designed for heatsink mounting and featuring three leads plus a metal mounting tab electrically connected to the cathode.

Pin/Terminal	Circuit Role	Design Meaning
1	Anode 1	Input terminal for first diode; connects to transformer secondary winding or input rail in dual-output configurations.
2	Cathode (common)	Shared cathode node for both diodes; electrically tied to mounting base; requires isolation from heatsink unless referenced to system ground.
3	Anode 2	Input terminal for second diode; supports independent or complementary rectification paths (e.g., push-pull or dual-output SMPS).

Key Features

Feature	Design Value
Ultrafast soft recovery	trr ≤ 60 ns with minimal current tail; reduces EMI and voltage overshoot during turn-off in high-dV/dt environments.
Low thermal resistance	Rth(j-mb) = 3 K/W (dual conduction); enables higher power density without oversized heatsinks in space-constrained PSUs.
Common-cathode dual configuration	Single-package integration of two matched diodes sharing cathode; simplifies PCB layout and improves thermal coupling vs. discrete solutions.
High thermal cycling reliability	Validated for repeated thermal stress; suitable for industrial power supplies subject to frequent on/off cycles and ambient temperature swings.

Applications

Server Power Supply Rectification	Laptop Adapter Output Stage
Use Scenario: Dual +12 V and +5 V outputs in ATX-style server PSUs using center-tapped transformer secondary. IC Role / Device Role / Timing Role: Dual common-cathode rectifier providing synchronous output rectification for two independent DC rails. Use Value: Enables shared cathode return path and matched diode characteristics, reducing component count and improving cross-regulation between outputs.	Use Scenario: High-efficiency 65 W laptop AC/DC adapter with dual-output flyback topology. IC Role / Device Role / Timing Role: Output rectifier for main 19 V and auxiliary 5 V rails, operating at 100–200 kHz switching frequency. Use Value: 60 ns trr and soft recovery minimize switching losses and EMI filter requirements, supporting compact adapter form factor.
Industrial Motor Drive Auxiliary PSU	LED Driver Secondary Rectification
Use Scenario: Isolated auxiliary power supply for gate drivers and control logic in 3-phase inverter systems. IC Role / Device Role / Timing Role: Dual rectifier converting transformer-isolated AC into regulated ±15 V and +5 V rails. Use Value: 150 °C max junction temperature and robust thermal cycling performance ensure reliability in harsh industrial environments.	Use Scenario: Constant-current LED driver with isolated flyback stage powering high-brightness LED strings. IC Role / Device Role / Timing Role: Secondary-side rectifier delivering low-ripple DC to LED load with minimal conduction loss. Use Value: 1.05 V max V_F at 10 A reduces heat generation in enclosed LED fixtures, extending thermal lifetime of LEDs and electrolytic capacitors.

Server Power Supply Rectification

Laptop Adapter Output Stage

Use Scenario: Dual +12 V and +5 V outputs in ATX-style server PSUs using center-tapped transformer secondary.

IC Role / Device Role / Timing Role: Dual common-cathode rectifier providing synchronous output rectification for two independent DC rails.

Use Value: Enables shared cathode return path and matched diode characteristics, reducing component count and improving cross-regulation between outputs.

Use Scenario: High-efficiency 65 W laptop AC/DC adapter with dual-output flyback topology.

IC Role / Device Role / Timing Role: Output rectifier for main 19 V and auxiliary 5 V rails, operating at 100–200 kHz switching frequency.

Use Value: 60 ns trr and soft recovery minimize switching losses and EMI filter requirements, supporting compact adapter form factor.

Industrial Motor Drive Auxiliary PSU

LED Driver Secondary Rectification

Use Scenario: Isolated auxiliary power supply for gate drivers and control logic in 3-phase inverter systems.

IC Role / Device Role / Timing Role: Dual rectifier converting transformer-isolated AC into regulated ±15 V and +5 V rails.

Use Value: 150 °C max junction temperature and robust thermal cycling performance ensure reliability in harsh industrial environments.

Use Scenario: Constant-current LED driver with isolated flyback stage powering high-brightness LED strings.

IC Role / Device Role / Timing Role: Secondary-side rectifier delivering low-ripple DC to LED load with minimal conduction loss.

Use Value: 1.05 V max V_F at 10 A reduces heat generation in enclosed LED fixtures, extending thermal lifetime of LEDs and electrolytic capacitors.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH10R06DJF	600 V V_RRM, 10 A I_O(AV), TO-220AC package (isolated tab), 65 ns trr	Higher voltage rating suits 400 V DC-link applications; non-common-cathode configuration requires separate cathode routing.	Select when higher reverse voltage margin or isolated mounting base is required; verify PCB layout compatibility due to different pinout.
VS-10ETX06-M3	600 V V_RRM, 10 A I_O(AV), TO-220AB package, common-cathode, 75 ns trr	Same package and pinout but slower recovery; higher Q_S increases switching loss in >200 kHz designs.	Acceptable for lower-frequency (<150 kHz) or cost-sensitive designs where soft recovery is less critical.

Compared with STTH10R06DJF and VS-10ETX06-M3, the BYT28-300 offers optimal balance of 300 V rating, 60 ns trr, and true common-cathode TO-220AB integration - making it preferred for compact, high-frequency dual-output SMPS where EMI control and layout simplicity are prioritized.

Availability

BYT28-300 is available at Aetrix Electronics and suitable for server power supplies, laptop adapters, industrial motor drive auxiliary PSUs, and LED driver secondary rectification requiring stable component supply and long-term industrial lifecycle support.

Supply support for BYT28-300 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

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in high-performance analog, power management, and interface solutions for industrial, automotive, and consumer markets.

The BYT28 series belongs to NXP's high-reliability power rectifier product line, engineered specifically for efficiency-critical, high-frequency switched-mode power conversion in industrial and computing applications.

FAQ

What is the maximum junction temperature rating for the BYT28-300?

The BYT28-300 has a maximum junction temperature (T_j) rating of 150 °C, as specified in Table 3 of the NXP datasheet. This allows reliable operation in high-ambient industrial environments when mounted to an appropriately sized heatsink with thermal resistance ≤ 3 K/W to maintain T_j within limit. The BYT28-300 must not exceed this temperature under steady-state or transient conditions.

Is the mounting base of the BYT28-300 electrically isolated?

No, the mounting base of the BYT28-300 is not electrically isolated - it is internally connected to Pin 2 (common cathode), as confirmed in the pinning diagram and "mb" notation in the datasheet. When mounting to a heatsink, electrical isolation (e.g., mica washer or insulating pad) is required unless the cathode node is referenced to chassis ground in the system design.

Can the BYT28-300 be used in place of the BYT28-500?

No - the BYT28-300 and BYT28-500 are distinct variants with different repetitive peak reverse voltage ratings (300 V vs. 500 V). Substituting BYT28-300 for BYT28-500 in a 500 V application risks catastrophic failure due to reverse breakdown. They share identical package, pinout, and thermal specs, but voltage rating is not interchangeable without circuit redesign and derating analysis.

What does "soft recovery" mean for the BYT28-300, and how is it measured?

Soft recovery in the BYT28-300 refers to its controlled reverse recovery waveform with minimal current tail and low di/dt during turn-off, reducing voltage spikes and EMI. It is characterized by low reverse recovery charge (Q_S ≤ 60 nC) and absence of hard snap-off behavior - verified per Figure 6 and Figure 9 in the NXP datasheet using standardized test conditions (−dI_F/dt = 20–100 A/μs).

Does the BYT28-300 meet RoHS and halogen-free requirements?

Yes - the BYT28-300 complies with RoHS Directive 2011/65/EU and is halogen-free, as confirmed by NXP's material declarations and package information (epoxy meets UL94 V0, no brominated flame retardants). Full compliance documentation, including substance declarations and test reports, is available upon request from Aetrix Electronics for qualifying customers.

BYT28-300,127 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: -

Package/Case:: TO-220-3

Packaging:: Bulk

Product Status:: Active

Diode Configuration:: 1 Pair Common Cathode

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 300 V

Current - Average Rectified (Io) (per Diode):: 10A

Voltage - Forward (Vf) (Max) @ If:: 1.4 V @ 10 A

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

Reverse Recovery Time (trr):: 60 ns

Current - Reverse Leakage @ Vr:: 10 µA @ 300 V

Operating Temperature - Junction:: 150°C (Max)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220AB

BYT28-300,127 FAQ

1.How can I place an order for BYT28-300,127 through Aetrix?

Please submit a Request for Quotation (RFQ) for BYT28-300,127 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 BYT28-300,127 reliable?

The price and inventory of BYT28-300,127 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BYT28-300,127 is usually 5 days.

3.What payment methods are accepted for BYT28-300,127?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BYT28-300,127 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BYT28-300,127?

BYT28-300,127 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BYT28-300,127 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 BYT28-300,127?

For technical support, including BYT28-300,127 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BYT28-300,127 requirements.

6.How does Aetrix verify that BYT28-300,127 is sourced from the original manufacturer or authorized distributors?

All BYT28-300,127 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 BYT28-300,127 meets industry standards.

7.What is the process for return or replacement of BYT28-300,127?

All BYT28-300,127 units undergo pre-shipment inspection (PSI). If there is an issue with BYT28-300,127, 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 BYT28-300,127 part is unused and in its original packaging.

Return procedure for BYT28-300,127:

1.Submit a request within 90 days.

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

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