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STMicroelectronics BYT30G-400-TR
- Part No.:
- BYT30G-400-TR
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
BYT30G-400-TR.pdf
- Description:
- DIODE GEN PURP 400V 30A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:7,997
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Product details
Overview
BYT30G-400 from STMicroelectronics is a high-efficiency fast recovery rectifier diode in D2PAK package, rated for 30 A average forward current (Tc=100°C), 400 V repetitive peak reverse voltage, and 50 ns reverse recovery time at 25°C with IF=0.5 A/Irr=0.25 A/IR=1 A - used in high-frequency inverters and motor freewheeling circuits.
For engineers reviewing the BYT30G-400 datasheet, BYT30G-400 pinout, BYT30G-400 application, or BYT30G-400 equivalent, key selection criteria include trr ≤ 50 ns at 25°C, VF = 1.4 V @ 30 A/100°C, Rth(j-c) = 1 °C/W, IFSM = 350 A (10 ms sine), and D2PAK thermal performance for SMD power conversion layouts.
Technical Context
This device employs optimized silicon epitaxial structure and controlled lifetime doping to achieve low trr and soft recovery characteristics, minimizing EMI and switching losses during turn-off in hard-switched converters. Its 1.4 V forward drop at 30 A/100°C and 1 °C/W junction-to-case thermal resistance support high-power-density SMD designs.
The diode exhibits defined dynamic behavior under controlled dIF/dt conditions: tIRM = 50 ns @ dIF/dt = −240 A/µs (Tj = 100°C), IRM = 12 A under same stress, and C factor = 3.3 for turn-off overvoltage prediction in inductive snubberless circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - maximum repetitive reverse blocking voltage; defines safe operating range in DC-link and flyback clamp applications. |
| IF(AV) | 30 A @ Tc = 100°C - continuous forward current capability with heatsink; sets minimum heatsink sizing for 100% duty-cycle operation. |
| trr | 50 ns @ Tj = 25°C, IF = 0.5 A, Irr = 0.25 A, VR = 30 V - ultra-fast recovery enables >100 kHz switching without excessive loss or ringing. |
| VF | 1.4 V @ IF = 30 A, Tj = 100°C - conduction loss contributor; used with P = 1.1×IF(AV) + 0.0095×IF²(RMS) for thermal modeling. |
| Rth(j-c) | 1 °C/W - thermal resistance from junction to case; enables direct calculation of ΔTj = Pdiss × 1 °C/W for thermal design. |
| IFSM | 350 A @ tp = 10 ms, sine - short-term surge rating; determines robustness against line transients and motor startup currents. |
| IRM | 12 A @ dIF/dt = −240 A/µs, Tj = 100°C - peak reverse recovery current; critical for snubber sizing and EMI filter design. |
Pinout & Package
D2PAK (TO-263) surface-mount plastic package with isolated tab (pin 2 = cathode, pins 1 & 3 = anode). Thermal pad on underside requires solder paste stencil design for optimal heat transfer to PCB copper pour.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 & 3 | Anode | Electrically common terminals; must be routed with low-inductance copper for high di/dt freewheeling paths. |
| 2 | Cathode | Main output terminal; connects to positive rail or switch node; carries full load current during conduction. |
| Tab (underside) | Thermal / Anode | Internally connected to anode (pins 1 & 3); provides primary thermal path to PCB; electrically isolated mounting required if circuit ground is not anode-referenced. |
Key Features
| Feature | Design Value |
|---|---|
| Very low trr | 50 ns typical at 25°C - reduces switching loss and dv/dt-induced gate noise in adjacent MOSFETs/IGBTs. |
| Low VF at high Tj | 1.4 V @ 30 A/100°C - maintains efficiency in thermally constrained SMD inverter modules. |
| Soft recovery profile | Controlled IRM and low C factor (3.3) - suppresses voltage overshoot and oscillation during turn-off in inductive loads. |
| D2PAK thermal performance | Rth(j-c) = 1 °C/W - enables >40 W continuous dissipation with standard 2-layer 2 oz Cu PCB heatsinking. |
| High IFSM | 350 A surge rating - withstands motor stall currents and input capacitor inrush without degradation. |
Applications
| Motor Drive Freewheeling | DC-DC Converter Output Rectification |
|---|---|
Use Scenario: Bidirectional current path in 3-phase BLDC or stepper motor drives during PWM dead-time commutation. IC Role / Device Role / Timing Role: Freewheeling diode providing low-loss return path for inductive back-EMF during upper-switch off periods. Use Value: 50 ns trr minimizes shoot-through risk and reduces EMI generation during rapid polarity reversal. | Use Scenario: Secondary-side rectification in isolated 100–200 kHz flyback or forward converters for industrial power supplies. IC Role / Device Role / Timing Role: High-frequency unidirectional current valve converting transformer AC output to regulated DC. Use Value: 1.4 V VF at 100°C ensures <1.5 W conduction loss at 30 A, supporting compact thermal design. |
| Solar Microinverter DC Link Clamp | Polarity Protection in Battery Systems |
Use Scenario: Clamping diode across H-bridge DC link in single-phase microinverters interfacing PV panels to grid. IC Role / Device Role / Timing Role: Fast-recovery clamp preventing voltage spikes during IGBT turn-off under reactive load conditions. Use Value: 12 A IRM and 3.3 C factor enable predictable snubberless clamping up to 200 V bus with dIF/dt >200 A/µs. | Use Scenario: Reverse-polarity protection in 24–48 V battery-powered equipment (e.g., portable test gear, UPS modules). IC Role / Device Role / Timing Role: Series-connected blocking diode preventing damage during accidental battery reversal. Use Value: 400 V VRRM and 350 A IFSM provide margin against load dump transients and hot-swap surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH30L04 | Lower VF (1.25 V @ 30 A/100°C), same trr (50 ns), identical D2PAK package and pinout. | Better conduction efficiency in thermally limited designs; slightly higher cost. | Select when minimizing Pdiss at high ambient temperature is prioritized over absolute lowest BOM cost. |
| IXYS MBR3045CT | Schottky construction; VF = 0.75 V @ 30 A/100°C but VRRM = 45 V only - not a voltage-compatible replacement. | Only suitable for low-voltage (<60 V) DC-DC outputs; cannot replace in 400 V bus applications. | Not a functional substitute for BYT30G-400 in 400 V systems; consider only for new low-VRRM designs requiring zero trr. |
Compared with STTH30L04 and MBR3045CT, BYT30G-400 delivers optimal balance of 400 V blocking, 50 ns trr, and 1.4 V VF in D2PAK - making it uniquely suited for industrial motor drives and solar inverters where both voltage rating and fast recovery are non-negotiable.
Availability
BYT30G-400 is available at Aetrix Electronics and suitable for high-frequency inverters, motor control freewheeling circuits, and polarity protection systems requiring stable component supply and long-term industrial lifecycle support.
Supply support for BYT30G-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, MCU, and sensor solutions for automotive, industrial, and consumer markets.
BYT30G-400 belongs to ST's high-voltage fast recovery diode product line, engineered specifically for high-efficiency power conversion in motor drives, renewable energy inverters, and industrial SMPS where low trr and rugged surge capability are essential.
FAQ
What is the recommended PCB layout for thermal management of BYT30G-400?
Use ≥200 mm² of 2 oz copper connected to the D2PAK thermal tab via ≥6 thermal vias (0.3 mm diameter, filled/plated) to internal ground or dedicated thermal plane. Maintain ≥1.5 mm clearance from other components to avoid localized hot spots. Footprint must match ST's specified 8.90 × 10.30 mm outline with 1.30 mm pad extensions.
Does BYT30G-400 support paralleling for higher current handling?
Paralleling is not recommended due to inherent VF mismatch between units causing current imbalance. ST specifies no derating curve for parallel operation. For >30 A, select a higher-rated single device (e.g., BYT60G-400) or use active current-sharing control with external sensing.
What is the maximum allowable dIF/dt for reliable operation?
Maximum validated dIF/dt is −240 A/µs at Tj = 100°C per datasheet Fig.9–11. Exceeding this may cause IRM >12 A and unpredictable turn-off overshoot. Layout inductance must be kept <0.05 µH using symmetric, short, wide traces to maintain specified dIF/dt performance.
Is BYT30G-400 suitable for use in automotive-grade power modules?
No - BYT30G-400 is qualified to industrial grade (−40°C to +150°C junction), not AEC-Q101. It lacks automotive-specific qualification testing (e.g., HTGB, TC, UHAST) and traceability documentation. For automotive applications, use ST's AEC-Q101 qualified STTH30L04TV or similar qualified variants.
BYT30G-400-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 400 V
- Current - Average Rectified (Io):
- 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
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
- Operating Temperature - Junction:
- -40°C ~ 150°C
BYT30G-400-TR FAQ
1.How can I place an order for BYT30G-400-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for BYT30G-400-TR 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 BYT30G-400-TR reliable?
The price and inventory of BYT30G-400-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BYT30G-400-TR is usually 5 days.
3.What payment methods are accepted for BYT30G-400-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BYT30G-400-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BYT30G-400-TR?
BYT30G-400-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BYT30G-400-TR 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 BYT30G-400-TR?
For technical support, including BYT30G-400-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BYT30G-400-TR requirements.
6.How does Aetrix verify that BYT30G-400-TR is sourced from the original manufacturer or authorized distributors?
All BYT30G-400-TR 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 BYT30G-400-TR meets industry standards.
7.What is the process for return or replacement of BYT30G-400-TR?
All BYT30G-400-TR units undergo pre-shipment inspection (PSI). If there is an issue with BYT30G-400-TR, 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 BYT30G-400-TR part is unused and in its original packaging.
Return procedure for BYT30G-400-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BYT30G-400-TR Tags
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