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STMicroelectronics BYT230Y-400
- Part No.:
- BYT230Y-400
- Manufacturer:
- STMicroelectronics
- Category:
- Diode Arrays
- Package:
- TO-247-3
- Datasheet:
-
BYT230Y-400.pdf
- Description:
- DIODE ARRAY GP 400V 30A MAX247
- Quantity:
- Payment:
- Shipping:
Inventory:2,689
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Product details
Overview
BYT230Y-400 from STMicroelectronics is a dual fast recovery rectifier diode in Max247 package, rated 400 V repetitive peak reverse voltage and 30 A average forward current per diode (60 A per device), with 50 ns reverse recovery time at 25°C and low 1.3 V max forward voltage at 125°C - used in high-frequency switch-mode power supplies, telecom rectifiers, and welding equipment.
For engineers reviewing the BYT230Y-400 datasheet, BYT230Y-400 pinout, BYT230Y-400 application, or BYT230Y-400 equivalent, key selection criteria include trr ≤ 100 ns, VRRM = 400 V, IF(AV) = 30 A per diode, thermal resistance Rth(j-c) = 0.95 °C/W per diode, and suitability for high-dI/dt switching in SMPS and industrial converters.
Technical Context
This dual-diode device integrates two independent fast recovery rectifiers in a single Max247 insulated case, enabling shared thermal path and compact layout in bridge or dual-output configurations. Its 50–100 ns trr and low Qrr (< 50 nC typical) minimize switching losses during hard commutation.
The device operates up to 150°C junction temperature with 0.95 °C/W junction-to-case thermal resistance per diode, and exhibits dIF/dt capability up to –240 A/µs with controlled IRM (≤12 A) and tfr < 1.5 µs - critical for snubberless operation in high-efficiency converters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - supports DC bus voltages up to 280 V RMS in full-wave rectification without avalanche risk |
| IF(AV) per diode | 30 A at Tc = 105°C, δ = 0.5 - enables continuous conduction mode operation in 1–3 kW SMPS designs |
| trr | 50 ns (typ.) at 25°C - reduces turn-off switching loss and EMI generation in >100 kHz converters |
| VF max | 1.3 V at 125°C, 30 A - limits conduction loss to ~39 W per diode at rated current |
| Rth(j-c) per diode | 0.95 °C/W - allows ~31.6 W dissipation per diode before reaching 150°C junction limit at 25°C case temp |
| IFSM | 300 A non-repetitive surge (10 ms sinusoidal) - withstands inrush and short-circuit transients in telecom PSUs |
| IRM | 12 A peak reverse recovery current at dIF/dt = –240 A/µs - defines snubber sizing requirements |
Pinout & Package
Package: Max247 - insulated TO-247-style outline with three terminals (A1, K, A2), epoxy body meeting UL94 V0, 5 g weight, tube packaging (30 pcs).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode of Diode 1 | Input terminal for first rectifier leg; electrically isolated from A2 and K |
| K | Cathode (common) | Shared cathode node connecting both diodes - used in center-tap or dual-output configurations |
| A2 | Anode of Diode 2 | Input terminal for second independent rectifier leg; isolated from A1 and K |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast recovery | trr ≤ 100 ns ensures minimal switching loss and reduced EMI in 50–500 kHz SMPS topologies |
| Low noise turn-off | Controlled IRM and dV/dt behavior enable snubberless operation in medium-power converters |
| High surge robustness | 300 A IFSM supports repeated cold-start and overload events in telecom and welding supplies |
| Thermally optimized | 0.95 °C/W Rth(j-c) per diode allows efficient heatsinking in space-constrained industrial enclosures |
| Dual-diode integration | Independent anodes (A1/A2) + common cathode (K) simplify full-wave and dual-output rectifier layouts |
Applications
| Telecom Power Rectification | Welding Equipment DC Supply |
|---|---|
Use Scenario: AC/DC front-end in 48 V telecom rectifier modules delivering up to 2.5 kW output. IC Role / Device Role / Timing Role: Dual fast recovery rectifier providing synchronous full-wave rectification with low conduction and switching loss. Use Value: 50 ns trr and 1.3 V VF reduce total power loss by ≥12% vs. standard recovery diodes at 200 kHz switching. | Use Scenario: Output rectification stage in IGBT-based inverter welders requiring high peak current handling. IC Role / Device Role / Timing Role: High-surge-capable dual rectifier converting high-frequency AC from inverter to stable DC weld output. Use Value: 300 A IFSM and 150°C Tj rating sustain repeated 100–200 A arc ignition pulses without thermal derating. |
| Switch-Mode Power Supply | Industrial Motor Drive Power Stage |
Use Scenario: Secondary-side rectification in 1.2 kW server PSU with active clamp forward topology. IC Role / Device Role / Timing Role: Fast recovery diode pair in center-tapped secondary winding configuration. Use Value: Common-cathode layout (A1–K–A2) simplifies PCB routing and reduces parasitic inductance by ≥35% vs. discrete placement. | Use Scenario: Auxiliary DC supply generation in 7.5 kW VFDs using auxiliary transformer and rectifier stage. IC Role / Device Role / Timing Role: Dual-leg rectifier feeding isolated control rail and gate driver supplies. Use Value: 0.95 °C/W Rth(j-c) per diode enables direct mounting on shared heatsink with IGBT module, reducing thermal interface count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH30L06D | 600 V VRRM, 30 A IF(AV), 65 ns trr, TO-247 package with isolated tabs | Higher voltage margin but higher VF (1.55 V) at 125°C; requires separate cathode routing | Select when system DC bus exceeds 350 V or isolation between diodes is mandatory |
| IXYS MBR3045CT | 45 V VRRM, 30 A IF(AV), Schottky construction, no reverse recovery, VF = 0.72 V | Not suitable for 400 V applications; limited to ≤32 V DC bus use cases | Only viable for low-voltage, ultra-high-efficiency secondary-side rectification where VRRM ≤ 45 V |
Compared with STTH30L06D and MBR3045CT, BYT230Y-400 uniquely balances 400 V rating, dual-common-cathode topology, and 50 ns trr - making it optimal for cost-sensitive, thermally constrained 1–3 kW telecom and industrial SMPS where layout simplicity and EMI control are prioritized over maximum voltage headroom or lowest VF.
Availability
BYT230Y-400 is available at Aetrix Electronics and suitable for telecom power rectification, welding equipment DC supply, and switch-mode power supply applications requiring stable component supply and legacy industrial design continuity.
Supply support for BYT230Y-400 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing analog, power, microcontroller, and sensor solutions for industrial, automotive, and consumer markets.
BYT230Y-400 belongs to ST's legacy fast recovery rectifier product line, engineered specifically for high-frequency, high-reliability power conversion in telecom infrastructure and industrial equipment where thermal robustness and switching speed are co-optimized.
FAQ
What is the maximum junction temperature and how does it affect thermal design?
The BYT230Y-400 has a maximum operating junction temperature of 150°C. At Tc = 105°C, its 30 A average forward current rating assumes proper heatsinking to maintain this limit. With Rth(j-c) = 0.95 °C/W per diode, a 25°C ambient and 50 W dissipation requires ≤1.25 °C/W total system thermal resistance (including interface and heatsink) to stay within safe operating area.
Is BYT230Y-400 pin-compatible with other Max247 dual-diode rectifiers?
Yes - BYT230Y-400 uses the standard Max247 mechanical outline with A1–K–A2 terminal assignment, matching ST's STTH30L06D and similar dual-anode/common-cathode rectifiers. Mounting hole pattern, creepage distances, and thermal pad geometry are identical, enabling drop-in replacement where voltage/current ratings align.
How does the common-cathode configuration impact circuit layout?
The common-cathode (K) terminal enables simplified PCB routing in full-wave center-tapped or dual-output rectifier designs, eliminating separate cathode traces and reducing loop inductance. This configuration cuts parasitic inductance by up to 35% versus discrete diodes, directly lowering voltage overshoot and EMI during fast dI/dt transitions.
What is the significance of the 50 ns reverse recovery time specification?
The 50 ns trr (measured at 25°C, IF = 0.5 A, IR = 1 A, Irr = 0.25 A) reflects rapid carrier recombination, minimizing stored charge (Qrr < 40 nC typical). This directly reduces switching loss and di/dt-induced voltage spikes in converters operating above 100 kHz, improving efficiency and easing EMI filter design compared to standard recovery diodes with trr > 500 ns.
BYT230Y-400 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-247-3
- Packaging:
- Tube
- Product Status:
- Obsolete
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 400 V
- Current - Average Rectified (Io) (per Diode):
- 30A
- Voltage - Forward (Vf) (Max) @ If:
- 1.5 V @ 30 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 100 ns
- Current - Reverse Leakage @ Vr:
- 35 µA @ 400 V
- Operating Temperature - Junction:
- 150°C (Max)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- MAX247™
BYT230Y-400 FAQ
1.How can I place an order for BYT230Y-400 through Aetrix?
Please submit a Request for Quotation (RFQ) for BYT230Y-400 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 BYT230Y-400 reliable?
The price and inventory of BYT230Y-400 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BYT230Y-400 is usually 5 days.
3.What payment methods are accepted for BYT230Y-400?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BYT230Y-400 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BYT230Y-400?
BYT230Y-400 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BYT230Y-400 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 BYT230Y-400?
For technical support, including BYT230Y-400 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BYT230Y-400 requirements.
6.How does Aetrix verify that BYT230Y-400 is sourced from the original manufacturer or authorized distributors?
All BYT230Y-400 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 BYT230Y-400 meets industry standards.
7.What is the process for return or replacement of BYT230Y-400?
All BYT230Y-400 units undergo pre-shipment inspection (PSI). If there is an issue with BYT230Y-400, 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 BYT230Y-400 part is unused and in its original packaging.
Return procedure for BYT230Y-400:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BYT230Y-400 Tags
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BAV99-7-F
Diodes Incorporated
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BAT54C-7-F
Diodes Incorporated
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BAV99,215
Nexperia USA Inc.
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BAT54SLT1G
onsemi
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BAV70LT1G
onsemi
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BAT54CLT1G
onsemi
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BAT54S-7-F
Diodes Incorporated
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BAV99LT1G
onsemi
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BAT54S,215
Nexperia USA Inc.
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BAS40-04LT1G
onsemi
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MMBD1503-TP
Micro Commercial Co
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BAV99WT1G
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