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STMicroelectronics BYT231PIV-400
- Part No.:
- BYT231PIV-400
- Manufacturer:
- STMicroelectronics
- Category:
- Diode Arrays
- Package:
- ISOTOP
- Datasheet:
-
BYT231PIV-400.pdf
- Description:
- DIODE MODULE GP 400V 30A ISOTOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,461
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Product details
Overview
BYT231PIV-400 from STMicroelectronics is a dual fast recovery rectifier diode in ISOTOP package, rated for 400 V repetitive peak reverse voltage, 30 A average forward current (Tc = 75°C), and 50 ns maximum reverse recovery time (trr). It serves as a free-wheeling diode in high-frequency switch-mode power supplies and motor control circuits, delivering low switching losses and low-noise turn-off.
For engineers reviewing the BYT231PIV-400 datasheet, BYT231PIV-400 pinout, BYT231PIV-400 application, or BYT231PIV-400 equivalent, key selection criteria include trr ≤ 50 ns at 100°C, VF ≤ 1.4 V at 30 A/100°C, insulated ISOTOP package (2500 VRMS isolation), and dual-diode thermal coupling behavior under simultaneous conduction.
Technical Context
This dual-diode device integrates two independent fast recovery rectifiers in a single insulated metal-base package, enabling shared heatsinking while maintaining galvanic isolation between anode-cathode paths. Its ultra-fast recovery (tIRM ≤ 75 ns at dIF/dt = –120 A/µs) and low stored charge (Qrr < 50 nC typical at 100°C) minimize voltage overshoot and EMI during hard commutation.
The ISOTOP mechanical design supports conduction cooling via M4 screw mounting (1.3 N·m torque), with junction-to-case thermal resistance of 0.8 °C/W per diode and coupling resistance of 0.1 °C/W between diodes - critical for accurate thermal modeling in dual-switch topologies like half-bridge freewheeling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum repetitive reverse blocking voltage per diode; defines usable DC bus voltage headroom in SMPS output stages. |
| IF(AV) | 30 A @ Tc = 75°C, δ = 0.5 - Continuous DC forward current rating under standard heatsink conditions; sets minimum heatsink sizing. |
| trr (max) | 50 ns @ Tj = 100°C, IF = 0.5 A, IR = 1 A - Guarantees minimal reverse recovery tail, reducing switching loss and snubber stress in >100 kHz converters. |
| VF (max) | 1.4 V @ IF = 30 A, Tj = 100°C - Forward voltage drop directly impacts conduction loss (Pcond ≈ 1.1×IF(AV) + 0.0095×IF(RMS)²). |
| Rth(j–c) | 0.8 °C/W per diode - Thermal resistance from junction to case; enables precise temperature rise calculation when mounted on heatsink. |
| Isolation Voltage | 2500 VRMS - Reinforced insulation rating between package base and internal terminals; satisfies safety requirements for Class I equipment. |
| Cj | 45 pF @ VR = 0 V - Junction capacitance affects high-frequency noise coupling and resonant turn-on behavior in synchronous rectifier layouts. |
Pinout & Package
BYT231PIV-400 uses the ISOTOP (Insulated Super Top) package: a thermally optimized, electrically insulated plastic housing with four M4 mounting screws and two isolated diode die positions. The package provides 2500 VRMS isolation, 28 g mass (without screws), and standardized mechanical dimensions per STMicroelectronics ISOTOP spec (REF: A=12.0 mm, D=38.0 mm, E=25.3 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| K1 | Cathode of Diode 1 | High-side cathode terminal; connects to positive rail in freewheeling path; requires low-inductance layout due to fast dI/dt. |
| A1 | Anode of Diode 1 | Input node for Diode 1; ties to switching node (e.g., half-bridge leg) - subject to high dv/dt and EMI coupling. |
| K2 | Cathode of Diode 2 | Independent cathode for second diode; enables dual-channel freewheeling or interleaved operation without shared cathode impedance. |
| A2 | Anode of Diode 2 | Second switching-node connection; allows symmetrical layout in dual-phase or H-bridge configurations with matched thermal paths. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast recovery | trr ≤ 50 ns ensures minimal reverse recovery charge (Qrr) and reduces turn-off overvoltage spikes in high-dI/dt applications. |
| Low forward voltage | VF ≤ 1.4 V at 30 A/100°C lowers conduction loss by ~15% vs. standard FRDs, improving efficiency in 12–48 V output SMPS. |
| Galvanically isolated package | 2500 VRMS insulation eliminates need for additional isolation barriers in grounded-heatsink designs. |
| Dual-diode thermal coupling | Rth(c) = 0.1 °C/W between diodes enables accurate cross-thermal modeling for paralleled or complementary switching use cases. |
| Low parasitic inductance | L < 5 nH and C = 45 pF support clean switching waveforms up to 500 kHz without excessive ringing or EMI filtering overhead. |
Applications
| Motor Drive Inverter Freewheeling | Industrial SMPS Output Rectification |
|---|---|
Use Scenario: Bidirectional current handling in 3-phase BLDC inverter legs during PWM dead-time commutation. IC Role / Device Role / Timing Role: Dual fast recovery diode providing simultaneous freewheeling paths for upper/lower switches with matched trr and VF. Use Value: Eliminates shoot-through risk from mismatched recovery times and reduces heat generation in compact motor drive modules. | Use Scenario: Secondary-side rectification in 1–3 kW telecom or server PSUs operating at 100–300 kHz switching frequency. IC Role / Device Role / Timing Role: High-current, low-loss output rectifier replacing discrete TO-247 diodes to reduce board area and thermal interface count. Use Value: Enables >94% full-load efficiency with 2500 VRMS isolation meeting IEC 62368-1 creepage requirements without extra insulation layers. |
| UPS DC-Link Clamping | Welding Power Supply Snubber |
Use Scenario: Clamping transient energy during IGBT turn-off in online UPS inverters with regenerative braking capability. IC Role / Device Role / Timing Role: Fast-recovery clamp diode absorbing inductive kickback with controlled tIRM ≤ 9 A and tIRM ≤ 75 ns. Use Value: Prevents IGBT overvoltage failure while minimizing snubber capacitor size and dissipation compared to slower alternatives. | Use Scenario: High-current freewheeling in resonant DC welding inverters where dI/dt exceeds 200 A/µs during arc initiation. IC Role / Device Role / Timing Role: Low-inductance (L < 5 nH), low-capacitance (C = 45 pF) rectifier enabling clean current reversal without oscillation. Use Value: Reduces arc instability and electrode spatter by suppressing high-frequency ringing during current zero-crossing. |
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 | Single-diode TO-247; 600 V VRRM, 30 A IF(AV), trr = 65 ns; no package isolation. | Requires external insulation for grounded heatsinks; unsuitable for dual-path freewheeling without duplication. | Select when higher voltage rating is needed and isolation can be implemented externally. |
| IXYS MBR4045PT | Dual Schottky TO-247; 45 V VRRM, 40 A IF(AV); zero recovery charge but limited voltage range. | Only viable for low-voltage (<50 V) outputs; cannot replace in 400 V DC-link applications. | Select only for ≤48 V SMPS where ultra-low VF outweighs voltage limitation. |
Compared with STTH30L06D and MBR4045PT, BYT231PIV-400 uniquely combines dual-diode integration, 400 V rating, sub-50 ns recovery, and built-in 2500 VRMS isolation - making it irreplaceable in space-constrained, safety-critical, high-dI/dt industrial power stages.
Availability
BYT231PIV-400 is available at Aetrix Electronics and suitable for industrial motor drives, telecom SMPS, UPS inverters, and welding power supplies requiring stable component supply, long-lifecycle availability, and certified traceable sourcing.
Supply support for BYT231PIV-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, Switzerland, designing and manufacturing analog, microcontroller, power, and sensor solutions for automotive, industrial, and consumer markets.
BYT231PIV-400 belongs to ST's high-power fast recovery diode product line, engineered specifically for high-efficiency, high-reliability switch-mode power conversion in harsh thermal and electrical environments.
FAQ
What is the maximum allowable junction temperature for continuous operation?
The absolute maximum operating junction temperature is 150°C, verified per STMicroelectronics datasheet Section "Absolute Ratings". Derating is required above Tc = 75°C per Fig. 3; sustained operation beyond 150°C risks irreversible degradation of the PN junction and accelerated parameter drift.
Can BYT231PIV-400 be used in parallel with another unit for higher current handling?
No - the device is not characterized for parallel operation. Its ISOTOP package lacks integrated current-sharing features (e.g., matched VF binning or thermal symmetry across units), and thermal coupling is confined within the dual-diode pair, not between separate packages.
What is the recommended heatsink mounting torque for the ISOTOP package?
The specified torque is 1.3 N·m (maximum 1.5 N·m) for each of the six M4 mounting screws. STMicroelectronics specifies this value to ensure optimal thermal contact without cracking the epoxy housing or deforming the metal baseplate, as documented in the Mechanical Data section (Page 6).
Does BYT231PIV-400 meet UL 94 V-0 flammability requirements?
Yes - the ISOTOP package epoxy material is certified to UL 94 V-0, confirmed in the "Package Mechanical Data" section (Page 6). This rating applies to the molded body and supports compliance with end-equipment fire-safety standards including IEC 62368-1.
BYT231PIV-400 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- ISOTOP
- Packaging:
- Tube
- Product Status:
- Obsolete
- Diode Configuration:
- 2 Independent
- 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:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
- Supplier Device Package:
- ISOTOP®
BYT231PIV-400 FAQ
1.How can I place an order for BYT231PIV-400 through Aetrix?
Please submit a Request for Quotation (RFQ) for BYT231PIV-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 BYT231PIV-400 reliable?
The price and inventory of BYT231PIV-400 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BYT231PIV-400 is usually 5 days.
3.What payment methods are accepted for BYT231PIV-400?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BYT231PIV-400 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BYT231PIV-400?
BYT231PIV-400 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BYT231PIV-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 BYT231PIV-400?
For technical support, including BYT231PIV-400 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BYT231PIV-400 requirements.
6.How does Aetrix verify that BYT231PIV-400 is sourced from the original manufacturer or authorized distributors?
All BYT231PIV-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 BYT231PIV-400 meets industry standards.
7.What is the process for return or replacement of BYT231PIV-400?
All BYT231PIV-400 units undergo pre-shipment inspection (PSI). If there is an issue with BYT231PIV-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 BYT231PIV-400 part is unused and in its original packaging.
Return procedure for BYT231PIV-400:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BYT231PIV-400 Tags
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