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STMicroelectronics TPDV825RG
- Part No.:
- TPDV825RG
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TOP-3
- Datasheet:
-
TPDV825RG.pdf
- Description:
- TRIAC ALTERNISTOR 800V 25A TOP3
- Quantity:
- Payment:
- Shipping:
Inventory:7,433
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Product details
Overview
TPDV825RG from STMicroelectronics is a 25 A RMS insulated triac in TOP3 package, rated for 825 V repetitive peak off-state voltage (VDRM/VRRM), with 150 mA gate trigger current (IGT) and 2 kV/µs noise immunity - designed for robust AC power control in three-phase inductive load circuits such as motor starters and heating systems.
For engineers reviewing the TPDV825RG datasheet, TPDV825RG pinout, TPDV825RG application, or TPDV825RG equivalent, this device supports high commutation (88 A/ms at 10 V/µs), low on-state voltage (1.8 V max at 35 A), and UL-recognized 2500 Vrms insulation - critical for industrial motor speed control and resistive heating system reliability.
Technical Context
The TPDV825RG is an alternistor-type triac optimized for three-phase AC power switching with enhanced commutation robustness. It operates across quadrants I, II, and III, supports 100 A/µs critical rate of rise of on-state current (dl/dt), and maintains ≥2000 V/µs dV/dt immunity at 125 °C junction temperature.
Its insulated TOP3 package enables direct mounting to heatsinks without isolation hardware, while its 1.5 °C/W (DC) junction-to-case thermal resistance supports sustained 25 A RMS conduction at 85 °C case temperature - validated under 50 Hz, 180° conduction angle conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 25 A - Sustained RMS current handling at Tc = 85 °C, suitable for continuous motor starter duty cycles |
| VDRM / VRRM | 825 V - Repetitive peak off-state voltage rating, enabling use on 400 VAC three-phase grids with safety margin |
| IGT | 150 mA max - Gate trigger current requirement defines compatible driver strength (e.g., discrete BJT or opto-triac stage) |
| (dI/dt)c | 88 A/ms at 10 V/µs - Commutation capability ensures reliable turn-off under inductive load transients (e.g., fan motor back-EMF) |
| Rth(j-c) | 1.5 °C/W (DC) - Thermal resistance enables efficient heat transfer to heatsink, limiting junction rise to ≤37.5 °C at 25 A |
| VTM | 1.8 V max at 35 A - On-state voltage drop determines conduction loss (≈63 W at full load), guiding thermal design |
| VINS | 2500 Vrms - Reinforced insulation withstand rating (UL E81734) allows safe operation in grounded-chassis industrial enclosures |
Pinout & Package
TPDV825RG uses the insulated TOP3 package (21.1 × 15.5 × 4.6 mm), with creepage/clearance optimized for 2500 Vrms isolation between terminals and case. Mounting torque: 1.05 N·m (max 1.2 N·m).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 (MT1) | Main terminal 1 | Reference terminal for gate triggering; polarity-sensitive in quadrant-dependent firing |
| A2 (MT2) | Main terminal 2 | Current return path; voltage polarity relative to A1 determines conduction quadrant |
| G | Gate | Controls turn-on; requires ≥150 mA pulse with minimum 1.5 V threshold (VGT) to initiate conduction |
Key Features
| Feature | Design Value |
|---|---|
| High commutation robustness | 88 A/ms at 10 V/µs - prevents false turn-off during fast inductive transients in motor control |
| UL-recognized insulation | 2500 Vrms (E81734) - eliminates need for external isolation barriers in Class I industrial equipment |
| Low on-state voltage | 1.8 V max at 35 A - reduces conduction losses by ~15% vs. legacy triacs, easing thermal management |
| Three-quadrant operation | Quadrants I, II, III only - suppresses unwanted triggering from negative gate pulses in noisy environments |
| High dV/dt immunity | ≥2000 V/µs at 125 °C - resists false triggering from line transients in unfiltered 400 VAC distribution |
Applications
| Heating System Control | Motor Starter |
|---|---|
Use Scenario: Phase-angle controlled power delivery to resistive heating elements in industrial ovens. IC Role / Device Role / Timing Role: Main AC power switch regulating RMS voltage via gate-triggered conduction angle modulation. Use Value: 825 V VDRM and 25 A IT(RMS) enable direct control of 400 VAC three-phase heater banks without series snubbers. |
Use Scenario: Solid-state replacement for electromechanical contactors in HVAC blower motor circuits. IC Role / Device Role / Timing Role: Zero-crossing or phase-controlled triac switching motor winding supply. Use Value: 390 A non-repetitive surge rating (tp = 2.5 ms) handles locked-rotor inrush without failure. |
| Induction Motor Speed Control | Industrial Fan Drive |
Use Scenario: Voltage-controlled speed regulation of three-phase induction motors in pump drives. IC Role / Device Role / Timing Role: Line-synchronized AC switch modulating effective stator voltage amplitude. Use Value: 88 A/ms commutation rating ensures clean turn-off during rapid load-current zero crossings. |
Use Scenario: Variable-speed control of centrifugal fans in air-handling units. IC Role / Device Role / Timing Role: Alternistor triac enabling bidirectional current control per phase leg. Use Value: Three-quadrant gating rejects noise-induced false triggers common in EMI-rich HVAC cabinets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triac-based AC power control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BTA26-800BWRG | 800 V VDRM, 25 A IT(RMS), non-insulated TO-220 package, no UL insulation rating | Requires external isolation hardware for chassis-grounded systems; lower dV/dt immunity (1000 V/µs) | Select when cost sensitivity outweighs insulation and noise immunity requirements |
| Q6025LH5 | 600 V VDRM, 25 A IT(RMS), insulated TO-220 package, 50 A/ms commutation | Limited to 230 VAC single-phase or 400 VAC with derating; insufficient for 400 VAC three-phase full-voltage operation | Use only in lower-voltage legacy designs where 825 V rating is not required |
Compared with BTA26-800BWRG and Q6025LH5, TPDV825RG uniquely combines 825 V blocking, 2500 Vrms insulation, and 88 A/ms commutation - making it the only option qualified for noise-immune, isolated, three-phase 400 VAC motor control without external snubbers or isolation barriers.
Availability
TPDV825RG is available at Aetrix Electronics and suitable for heating system control, motor starter implementation, and induction motor speed control requiring stable component supply and long-term industrial lifecycle support.
Supply support for TPDV825RG 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, power, microcontroller, and sensor solutions for industrial, automotive, and consumer markets.
TPDV825RG belongs to the TPDVxx25 alternistor triac product line, engineered specifically for high-reliability AC power control in three-phase industrial equipment where commutation robustness and reinforced insulation are mandatory.
FAQ
What is the maximum allowable case temperature for continuous 25 A RMS operation?
The datasheet specifies IT(RMS) = 25 A at Tc = 85 °C under 180° conduction angle and 50 Hz. Exceeding 85 °C case temperature requires derating per Figure 3; at 100 °C case, maximum sustainable RMS current drops to approximately 20 A due to thermal limits.
Does TPDV825RG support four-quadrant triggering?
No. TPDV825RG is a three-quadrant alternistor triac, operating only in quadrants I, II, and III. Quadrant IV triggering is intentionally blocked to improve noise immunity and prevent spurious turn-on from negative gate transients in electrically noisy environments.
Can TPDV825RG replace standard triacs in existing PCB layouts?
Yes, but only if the footprint matches TOP3 mechanical dimensions (21.1 × 15.5 mm) and mounting torque (1.05 N·m) is applied. Its insulated construction eliminates need for insulating washers, unlike non-insulated TO-220 triacs - potentially simplifying assembly.
What gate drive circuit is recommended for reliable triggering?
A gate driver delivering ≥150 mA peak current with ≥1.5 V compliance and <2.5 µs rise time (per tGT spec) is required. Optocoupler-based drivers like MOC3023 (with 33 Ω series resistor) or discrete BJT stages (e.g., BCX56 with 100 Ω base resistor) meet these requirements under 230–400 VAC line conditions.
TPDV825RG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TOP-3
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Triac Type:
- Alternistor - Snubberless
- Voltage - Off State:
- 800 V
- Current - On State (It (RMS)) (Max):
- 25 A
- Voltage - Gate Trigger (Vgt) (Max):
- 1.5 V
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 230A, 250A
- Current - Gate Trigger (Igt) (Max):
- 150 mA
- Current - Hold (Ih) (Max):
- 50 mA
- Configuration:
- Single
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TOP3
TPDV825RG FAQ
1.How can I place an order for TPDV825RG through Aetrix?
Please submit a Request for Quotation (RFQ) for TPDV825RG 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 TPDV825RG reliable?
The price and inventory of TPDV825RG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPDV825RG is usually 5 days.
3.What payment methods are accepted for TPDV825RG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPDV825RG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPDV825RG?
TPDV825RG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPDV825RG 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 TPDV825RG?
For technical support, including TPDV825RG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPDV825RG requirements.
6.How does Aetrix verify that TPDV825RG is sourced from the original manufacturer or authorized distributors?
All TPDV825RG 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 TPDV825RG meets industry standards.
7.What is the process for return or replacement of TPDV825RG?
All TPDV825RG units undergo pre-shipment inspection (PSI). If there is an issue with TPDV825RG, 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 TPDV825RG part is unused and in its original packaging.
Return procedure for TPDV825RG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPDV825RG Tags
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