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Renesas 3P4MH(7)-AZ
- Part No.:
- 3P4MH(7)-AZ
- Manufacturer:
- Renesas
- Category:
- SCRs
- Package:
- -
- Datasheet:
-
3P4MH(7)-AZ.pdf
- Description:
- SILICON CONTROLLED RECTIFIER
- Quantity:
- Payment:
- Shipping:
Inventory:446
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Product details
Overview
3P4MH(7)-AZ from Renesas Electronics is a 3 A average on-state current, 400 V repetitive peak off-state voltage silicon-controlled rectifier (SCR) in TO-202AA package. It features 1.6 V typical on-state voltage at 10 A, 0.2 mA gate trigger current, and 80 µs commutating turn-off time. Designed for noncontact switching in consumer electronics power control circuits.
For engineers reviewing the 3P4MH(7)-AZ datasheet, 3P4MH(7)-AZ pinout, 3P4MH(7)-AZ application, or 3P4MH(7)-AZ equivalent, key selection criteria include verified dV/dt immunity (3 V/µs), thermal resistance (8 °C/W junction-to-case), gate sensitivity (0.8 V VGT), and compliance with UL94V-0 flame-retardant epoxy packaging.
Technical Context
The 3P4MH(7)-AZ is a P-gate fully diffused molded SCR optimized for phase-control and AC switching applications. Its design supports single half-wave conduction with IT(AV) = 3 A at Tc = 87°C and θ = 180°, and delivers 4.7 A RMS on-state current capability.
It operates across −40 to +125°C junction temperature range with validated dIT/dt rating of 50 A/µs and critical off-state dV/dt of 3 V/µs at 125°C. Gate drive requires only 0.2 mA IGT and 0.8 V VGT under standard test conditions (VDM = 6 V, RL = 100 Ω).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDRM / VRRM | 400 V - Maximum repetitive off-state voltage before unintended conduction in AC line-switching applications |
| IT(AV) | 3 A at Tc = 87°C - Continuous average current handling for thermal-limited half-wave resistive loads |
| VTM | 1.6 V max at IT = 10 A - Low conduction loss enabling efficient power control without forced cooling |
| IGT / VGT | 0.2 mA / 0.8 V - Minimal gate drive power requirement compatible with low-power microcontroller outputs |
| Tq | 80 µs - Commutation time enabling reliable turn-off in 50/60 Hz AC phase-control circuits |
| Rth(j-c) | 8 °C/W - Predictable thermal path to heatsink for stable operation under sustained load |
| dV/dt | 3 V/µs at Tj = 125°C - Immunity to false triggering from line transients in noisy industrial environments |
Pinout & Package
Package: TO-202AA - Molded plastic case with integral heatsink tab, UL94V-0 rated, 1.4 g weight, designed for surface-mount or through-hole mounting with mechanical jig compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| <1> Cathode | Current exit terminal during conduction | Primary current return path; electrically tied to heatsink tab in standard mounting configuration |
| <2> Anode | Current entry terminal during conduction | High-side AC line connection point; must withstand full VDRM/VRRM blocking stress |
| <3> Gate | Control input for forward conduction initiation | Low-energy trigger interface requiring ≤0.2 mA; sensitive to noise-requires local RC snubbing per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Flame-retardant encapsulation | UL94V-0 certified epoxy resin ensures compliance with safety standards for consumer equipment enclosures |
| TO-202AA mechanical form factor | Standardized footprint enables drop-in replacement and compatibility with existing lead-forming jigs and heatsink tablets |
| High dIT/dt immunity | 50 A/µs rating prevents false turn-on during fast-rising load currents in motor or transformer primary circuits |
| Low gate threshold | 0.2 mA IGT and 0.8 V VGT allow direct drive from logic-level GPIOs without external amplification |
| Thermal performance | 8 °C/W Rth(j-c) supports 3 A continuous operation with minimal heatsink area in space-constrained designs |
Applications
| AC Fan Speed Control | Light Dimming Module |
|---|---|
Use Scenario: Variable-speed control of universal motors in ceiling fans and exhaust units using phase-angle modulation. IC Role / Device Role / Timing Role: Main power switch triggered synchronously with AC zero-crossing to regulate RMS voltage delivered to motor winding. Use Value: Enables smooth speed adjustment with <1.6 V conduction loss and 80 µs turn-off margin ensuring clean commutation at 50/60 Hz. |
Use Scenario: Leading-edge dimming of incandescent and halogen lamps in residential lighting fixtures. IC Role / Device Role / Timing Role: Bidirectional AC switch activated by microcontroller-generated gate pulses to chop each half-cycle. Use Value: Supports 400 V blocking and 3 A average current while maintaining <0.2 mA gate sensitivity for low-power MCU interfacing. |
| Appliance Power Sequencing | Industrial Heater Control |
Use Scenario: Delayed turn-on of compressor and fan circuits in refrigerators and air conditioners to limit inrush current. IC Role / Device Role / Timing Role: High-reliability AC switch isolating main power stage until control logic confirms safe startup conditions. Use Value: Withstands 500 V non-repetitive peak reverse voltage and −40 to +125°C operating range for robustness in appliance thermal cycles. |
Use Scenario: Closed-loop temperature regulation of resistive heating elements in ovens and drying cabinets. IC Role / Device Role / Timing Role: Phase-controlled power delivery modulated by PID output to maintain setpoint accuracy. Use Value: Delivers 4.7 A RMS current capability and 3 V/µs dV/dt immunity to sustain stable operation amid heater-induced line disturbances. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SCR switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ST3P4M | Same 400 V VDRM and 3 A IT(AV), but TO-220AB package; higher Rth(j-c) = 10 °C/W | Requires larger heatsink area for equivalent thermal performance; less suitable for compact consumer modules | Prefer when legacy TO-220 footprint is mandated and board space allows additional thermal margin |
| BT169G | Lower 1 A IT(AV); 400 V VDRM; TO-92 package; gate trigger current 50 µA (lower sensitivity) | Limited to signal-level or low-power switching; not rated for sustained 3 A loads | Only acceptable for pilot-stage or auxiliary control where main switching is handled by downstream devices |
Compared with ST3P4M and BT169G, the 3P4MH(7)-AZ uniquely balances TO-202AA compactness, 3 A thermal capability, and sub-mA gate drive-making it optimal for cost-sensitive, space-constrained AC power control where full-load reliability is required.
Availability
3P4MH(7)-AZ is available at Aetrix Electronics and suitable for AC fan speed control, light dimming modules, appliance power sequencing, and industrial heater control requiring stable component supply and long-term manufacturing continuity.
Supply support for 3P4MH(7)-AZ 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
Renesas Electronics Corporation is a global semiconductor leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and consumer applications.
The 3P4MH(7)-AZ belongs to Renesas' legacy thyristor product line, engineered specifically for cost-effective, high-reliability AC power switching in Standard-grade consumer and industrial equipment.
FAQ
What is the maximum junction temperature rating for the 3P4MH(7)-AZ?
The 3P4MH(7)-AZ has a specified junction temperature range of −40°C to +125°C. This rating enables reliable operation in ambient environments up to +85°C when mounted on a heatsink providing ≤8 °C/W thermal resistance. Derating curves in Figure 11 of the D13533EJ3V0DS datasheet confirm 3 A IT(AV) is maintained at Tc = 87°C, making the 3P4MH(7)-AZ suitable for thermally demanding consumer and industrial enclosures.
Does the 3P4MH(7)-AZ support bidirectional AC switching?
No-the 3P4MH(7)-AZ is a unidirectional silicon-controlled rectifier (SCR) and conducts current only from anode to cathode when triggered. It blocks reverse voltage up to 400 V (VRRM) but cannot be turned on in reverse polarity. For full-wave AC control, two 3P4MH(7)-AZ devices must be connected in inverse-parallel, or a triac such as the Q6004LH4 should be used instead.
What gate drive circuit is recommended for reliable triggering of the 3P4MH(7)-AZ?
A series resistor of 100 Ω between microcontroller GPIO and gate (pin 3), with a 0.1 µF capacitor from gate to cathode, provides optimal noise immunity and meets the 0.2 mA IGT and 0.8 V VGT requirements. The gate pulse must exceed 10 µs duration and deliver ≥10 mW peak power (per Figure 3). Avoid exceeding 6 V VRGM or 2 W PGM to prevent gate damage in the 3P4MH(7)-AZ.
Is the 3P4MH(7)-AZ RoHS compliant?
Yes-the 3P4MH(7)-AZ complies with EU RoHS Directive 2011/65/EU. Renesas Electronics confirms lead-free termination and absence of restricted substances including lead, mercury, cadmium, hexavalent chromium, PBB, and PBDE. Full material declarations and test reports are available upon request for the 3P4MH(7)-AZ through Aetrix Electronics' technical support portal.
How does the 3P4MH(7)-AZ compare to the 3P6MH variant?
The 3P6MH shares identical package, pinout, thermal, and gate characteristics with the 3P4MH(7)-AZ but offers higher 600 V VDRM/VRRM ratings. Both have 3 A IT(AV), 1.6 V VTM, and 80 µs Tq. Choose the 3P4MH(7)-AZ for 120/230 VAC systems where 400 V blocking suffices; select the 3P6MH only when line surges or 380 VAC industrial supplies demand extra voltage margin. The 3P4MH(7)-AZ remains preferred for cost and size optimization in standard consumer applications.
3P4MH(7)-AZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Off State:
- -
- Voltage - Gate Trigger (Vgt) (Max):
- -
- Current - Gate Trigger (Igt) (Max):
- -
- Voltage - On State (Vtm) (Max):
- -
- Current - On State (It (AV)) (Max):
- -
- Current - On State (It (RMS)) (Max):
- -
- Current - Hold (Ih) (Max):
- -
- Current - Off State (Max):
- -
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- -
- SCR Type:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
3P4MH(7)-AZ FAQ
1.How can I place an order for 3P4MH(7)-AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for 3P4MH(7)-AZ 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 3P4MH(7)-AZ reliable?
The price and inventory of 3P4MH(7)-AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3P4MH(7)-AZ is usually 5 days.
3.What payment methods are accepted for 3P4MH(7)-AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3P4MH(7)-AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3P4MH(7)-AZ?
3P4MH(7)-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3P4MH(7)-AZ 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 3P4MH(7)-AZ?
For technical support, including 3P4MH(7)-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3P4MH(7)-AZ requirements.
6.How does Aetrix verify that 3P4MH(7)-AZ is sourced from the original manufacturer or authorized distributors?
All 3P4MH(7)-AZ 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 3P4MH(7)-AZ meets industry standards.
7.What is the process for return or replacement of 3P4MH(7)-AZ?
All 3P4MH(7)-AZ units undergo pre-shipment inspection (PSI). If there is an issue with 3P4MH(7)-AZ, 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 3P4MH(7)-AZ part is unused and in its original packaging.
Return procedure for 3P4MH(7)-AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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