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STMicroelectronics BYT12PI-1000RG
- Part No.:
- BYT12PI-1000RG
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- TO-220-2 Isolated Tab
- Datasheet:
-
BYT12PI-1000RG.pdf
- Description:
- DIODE GP 1KV 12A TO220AC ISOL
- Quantity:
- Payment:
- Shipping:
Inventory:9,984
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Product details
Overview
BYT12PI-1000RG from STMicroelectronics is a fast recovery rectifier diode in isolated TO-220AC plastic package, rated for 1000 V repetitive peak reverse voltage (VRRM), 12 A average forward current (IF(AV)) at Tc = 50°C, and 155 ns typical reverse recovery time (trr) at 25°C with diF/dt = −15 A/µs - used as freewheeling diode in motor control inverters and SMPS secondary-side rectification.
For engineers reviewing the BYT12PI-1000RG datasheet, BYT12PI-1000RG pinout, BYT12PI-1000RG application, or BYT12PI-1000RG equivalent, key selection criteria include verified trr ≤ 155 ns, VRRM = 1000 V, IF(AV) = 12 A, Rth(j–c) = 4 °C/W, and insulated TO-220AC mechanical compatibility for high-voltage switching power stages.
Technical Context
This diode employs optimized silicon epitaxial structure and lifetime control to achieve low noise turn-off switching and minimal reverse recovery charge (Qrr), enabling efficient operation in hard-switched converters up to 100 kHz. Its 7 pF junction capacitance and 2500 VRMS isolation rating support safe use in grounded heatsink configurations.
The device delivers stable conduction characteristics across −40°C to +150°C junction temperature range, with VF = 1.9 V at 12 A and 25°C, and exhibits predictable surge capability (IFSM = 75 A, tp = 10 ms) for transient overload handling in industrial motor drives.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - supports DC bus voltages up to 700 VDC in 3-phase rectifiers with safety margin |
| trr | 155 ns typ. - enables high-frequency switching with reduced EMI and switching losses |
| IF(AV) | 12 A @ Tc = 50°C - defines continuous thermal-limited output in conduction-mode designs |
| Rth(j–c) | 4 °C/W - determines minimum heatsink requirement for 25 W dissipation at junction |
| Cj | 7 pF - minimizes capacitive coupling and dv/dt-induced false triggering in gate-drive circuits |
| VRMS Isolation | 2500 VRMS - permits direct mounting on grounded metal heatsinks without insulation pads |
| IRM | 7.8 A @ diF/dt = −50 A/µs - quantifies peak reverse current during fast turn-off transients |
Pinout & Package
Package: Isolated TO-220AC plastic case with electrically insulated tab (no internal metal connection between cathode and case). Mounting via M3 screw with recommended torque 80 cm·N.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to low-side switch node or transformer secondary center-tap in full-wave rectifiers |
| Cathode | Forward current exit / reverse blocking terminal | Connected to output rail or smoothing capacitor; electrically isolated from heatsink |
| Case (Tab) | Electrically isolated mechanical interface | Provides thermal path only; no electrical connection - enables direct heatsink mounting without insulator |
Key Features
| Feature | Design Value |
|---|---|
| Fast recovery time | 155 ns typ. - reduces switching loss and EMI in 20–100 kHz SMPS topologies |
| High voltage blocking | 1000 V VRRM - supports 400–700 VDC input systems including PFC front-ends and industrial AC drives |
| Low noise turn-off | Controlled reverse recovery waveform - suppresses voltage spikes and ringing in inductive loads |
| Insulated package | 2500 VRMS isolation - eliminates need for mica washers or silicone pads in heatsink mounting |
| Thermal efficiency | Rth(j–c) = 4 °C/W - allows 25 W continuous dissipation with modest heatsinking at Tc = 50°C |
Applications
| Motor Drive Freewheeling | SMPS Secondary Rectification |
|---|---|
Use Scenario: Bidirectional current path in IGBT-based 3-phase inverter legs driving induction motors. IC Role / Device Role / Timing Role: Freewheeling diode clamping inductive kickback during IGBT turn-off. Use Value: 155 ns trr limits voltage overshoot and reduces snubber losses in 8–20 kHz PWM motor control. | Use Scenario: Output rectification in 100–500 W offline flyback or forward converters. IC Role / Device Role / Timing Role: Unidirectional current conduction on transformer secondary side. Use Value: 7 pF junction capacitance minimizes high-frequency leakage and improves light-load regulation. |
| Industrial DC Power Supply | UPS Inverter Stage |
Use Scenario: Input bridge rectification feeding regulated DC bus in programmable logic controller (PLC) power modules. IC Role / Device Role / Timing Role: High-reliability AC-to-DC conversion under wide ambient temperature variation. Use Value: −40°C to +150°C operating range ensures stability in unventilated control cabinets. | Use Scenario: Bidirectional energy transfer in double-conversion UPS inverter output stage. IC Role / Device Role / Timing Role: Synchronous rectification assist and fault-current path during bypass mode. Use Value: 75 A non-repetitive surge rating handles short-circuit transients without failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH12R06DJF | VRRM = 600 V, trr = 65 ns, TO-220AC non-isolated | Lacks 2500 VRMS isolation; requires insulating pad for grounded heatsink | Preferred where lower VRRM suffices and higher speed justifies added isolation complexity |
| VS-12EWH06FN-M3 | VRRM = 600 V, trr = 55 ns, TO-247AC isolated | Higher cost, larger footprint; superior thermal performance (Rth(j–c) = 2.5 °C/W) | Selected when >25 W dissipation or >100 kHz operation demands lower trr and better thermal margin |
Compared with BYT12PI-1000RG, STTH12R06DJF trades isolation for speed and cost, while VS-12EWH06FN-M3 upgrades thermal and switching performance at size and cost premium - making BYT12PI-1000RG optimal for cost-sensitive, grounded-heatsink 1000 V industrial rectification.
Availability
BYT12PI-1000RG is available at Aetrix Electronics and suitable for industrial motor drives, offline SMPS, and uninterruptible power supplies requiring stable component supply and long-term BOM continuity.
Supply support for BYT12PI-1000RG 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.
BYT12PI-1000RG belongs to ST's high-voltage fast recovery diode product line, engineered specifically for ruggedized power conversion in motor control, industrial SMPS, and UPS systems demanding reliability at elevated voltage and temperature stress.
FAQ
Is BYT12PI-1000RG pin-compatible with standard TO-220AC diodes?
Yes - it uses the standard TO-220AC outline with 3.75 mm lead spacing and 15.9 mm body height. The insulated tab maintains identical mechanical footprint but eliminates electrical connection between cathode and case, allowing direct heatsink mounting without insulators.
What is the maximum allowable case temperature for continuous operation?
The datasheet specifies IF(AV) = 12 A at Tc = 50°C. With Rth(j–c) = 4 °C/W and max Tj = 150°C, the absolute maximum case temperature for continuous 12 A conduction is 100°C - beyond which derating is required to maintain junction safety margin.
Does BYT12PI-1000RG require a snubber circuit in typical SMPS applications?
Not inherently - its controlled 155 ns trr and low IRM (7.8 A) minimize voltage overshoot during turn-off. However, snubbers may still be needed in high-diF/dt (>100 A/µs) or high-inductance layouts to suppress ringing caused by PCB parasitics, not device behavior.
Can BYT12PI-1000RG replace BYT12P-1000 in existing designs?
Yes - BYT12PI-1000RG is the insulated-tab variant of BYT12P-1000. All electrical parameters match identically; the only difference is the electrically isolated tab, enabling simplified heatsink integration without compromising isolation integrity in grounded systems.
BYT12PI-1000RG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-220-2 Isolated Tab
- Packaging:
- Tube
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 1000 V
- Current - Average Rectified (Io):
- 12A
- Voltage - Forward (Vf) (Max) @ If:
- 1.9 V @ 12 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 155 ns
- Current - Reverse Leakage @ Vr:
- 50 µA @ 1000 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO220AC Isolated
- Operating Temperature - Junction:
- -40°C ~ 150°C
BYT12PI-1000RG FAQ
1.How can I place an order for BYT12PI-1000RG through Aetrix?
Please submit a Request for Quotation (RFQ) for BYT12PI-1000RG 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 BYT12PI-1000RG reliable?
The price and inventory of BYT12PI-1000RG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BYT12PI-1000RG is usually 5 days.
3.What payment methods are accepted for BYT12PI-1000RG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BYT12PI-1000RG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BYT12PI-1000RG?
BYT12PI-1000RG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BYT12PI-1000RG 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 BYT12PI-1000RG?
For technical support, including BYT12PI-1000RG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BYT12PI-1000RG requirements.
6.How does Aetrix verify that BYT12PI-1000RG is sourced from the original manufacturer or authorized distributors?
All BYT12PI-1000RG 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 BYT12PI-1000RG meets industry standards.
7.What is the process for return or replacement of BYT12PI-1000RG?
All BYT12PI-1000RG units undergo pre-shipment inspection (PSI). If there is an issue with BYT12PI-1000RG, 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 BYT12PI-1000RG part is unused and in its original packaging.
Return procedure for BYT12PI-1000RG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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