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Renesas 3P4MH(14)-AZ
- Part No.:
- 3P4MH(14)-AZ
- Manufacturer:
- Renesas
- Category:
- SCRs
- Package:
- -
- Datasheet:
-
3P4MH(14)-AZ.pdf
- Description:
- SILICON CONTROLLED RECTIFIER
- Quantity:
- Payment:
- Shipping:
Inventory:1,726
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Product details
Overview
3P4MH(14)-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, with gate trigger current ≤0.2 mA and on-state voltage ≤1.6 V at 10 A, used for noncontact switching in consumer audio and lighting equipment.
For engineers reviewing the 3P4MH(14)-AZ datasheet, 3P4MH(14)-AZ pinout, 3P4MH(14)-AZ application, or 3P4MH(14)-AZ equivalent, key selection criteria include verified dV/dt immunity (≥3 V/µs), commutating turn-off time (≤80 µs), junction-to-case thermal resistance (8 °C/W), and UL94V-0 flame-retardant epoxy packaging.
Technical Context
The 3P4MH(14)-AZ is a P-gate, fully diffused mold-type SCR optimized for phase-control and AC switching in low-to-medium power applications. It operates with gate trigger voltage ≤0.8 V and holding current between 1–5 mA, enabling reliable latching with minimal gate drive.
Its critical dIT/dt rating of 50 A/µs and fusing ∫i²t of 20 A²s support robust surge handling in single-half-wave line-frequency operation. Thermal design is facilitated by its 8 °C/W junction-to-case resistance and 75 °C/W junction-to-ambient rating under DC conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(AV) | 3 A at Tc = 87°C, single half-wave, 180° conduction - defines continuous RMS load capability in heatsink-mounted operation |
| VDRM / VRRM | 400 V - maximum repetitive blocking voltage in forward and reverse directions, sets AC mains isolation margin |
| IGT | ≤0.2 mA at VDM = 6 V, RL = 100 Ω - ultra-low gate drive requirement reduces control circuit power and component count |
| VTM | ≤1.6 V at IT = 10 A - low conduction loss enables efficient power delivery and reduced thermal stress |
| Tq | ≤80 µs at Tj = 125°C, IT = 3 A - fast commutation supports higher-frequency phase control and reduced snubber demands |
| Rth(j-c) | 8 °C/W - enables direct heatsink mounting with predictable thermal rise for stable long-term operation |
| dV/dt | ≥3 V/µs at Tj = 125°C - ensures noise immunity against voltage transients during AC zero-crossing switching |
Pinout & Package
3P4MH(14)-AZ uses the TO-202AA molded plastic package (standard weight 1.4 g), UL94V-0 rated, with leads formed for surface-mount or through-hole mounting and compatible with standard heatsink tablet fixtures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| <1> Cathode | Current exit path during conduction | Primary output terminal; connects to load return and heatsink (if electrically common); polarity-sensitive for AC phase control |
| <2> Anode | Current entry path during conduction | AC line or high-side connection point; must withstand full VDRM/VRRM and surge currents |
| <3> Gate | Trigger control input | Low-energy pulse input (≤0.2 mA IGT); requires current-limiting resistor; referenced to cathode |
Key Features
| Feature | Design Value |
|---|---|
| Flame-retardant encapsulation | UL94V-0 epoxy resin - meets safety standards for consumer equipment enclosures and prevents fire propagation |
| TO-202AA mechanical compatibility | Standardized footprint and lead spacing - enables use of existing jigs for lead forming and heatsink attachment |
| P-gate fully diffused structure | Enhanced gate sensitivity and uniform triggering across temperature - improves reliability in varying ambient conditions |
| High dIT/dt rating | 50 A/µs - suppresses false turn-on during rapid current transients in motor or transformer loads |
| Low thermal resistance | 8 °C/W junction-to-case - allows compact thermal design without forced air cooling in 3 A applications |
Applications
| Audio Equipment Power Control | Lighting Dimmer Circuits |
|---|---|
Use Scenario: Phase-controlled AC power regulation in stereo amplifiers and active speakers to manage standby-to-operational transitions and reduce inrush. IC Role / Device Role / Timing Role: Main AC switching element triggered synchronously with line zero-crossing to modulate RMS voltage delivered to power supply rails. Use Value: Enables smooth, silent power-up sequencing and eliminates relay "click" while maintaining <0.2 mA gate drive compatibility with microcontroller GPIOs. |
Use Scenario: Leading-edge dimming in residential LED and incandescent lamp drivers using TRIAC-compatible control logic. IC Role / Device Role / Timing Role: Bidirectional switching device (in back-to-back configuration) that replaces mechanical switches with precise conduction-angle control. Use Value: Delivers flicker-free dimming down to 5% brightness with verified 3 V/µs dV/dt immunity against EMI-induced misfiring. |
| Consumer Appliance Motor Control | Industrial Fan Speed Regulation |
Use Scenario: Speed control of universal motors in vacuum cleaners and blenders via variable conduction angle in 50/60 Hz mains. IC Role / Device Role / Timing Role: Primary power switch in single-phase AC motor drive stage, triggered by optocoupled zero-crossing detector. Use Value: Supports 65 A surge current (50 Hz, 1-cycle) for motor startup torque without derating, validated per Figure 2 in D13533EJ3V0DS. |
Use Scenario: Continuous-duty fan speed adjustment in HVAC control panels where thermal stability and long life are required. IC Role / Device Role / Timing Role: Line-synchronized switching element mounted directly to aluminum heatsink for passive thermal management. Use Value: Junction-to-case thermal resistance of 8 °C/W ensures Tj remains ≤110°C at 3 A average load, extending lifetime beyond 100,000 cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SCR switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STMicroelectronics TS3A40 | 4 A IT(AV), 400 V VDRM, TO-220AB package, higher IGT (≤10 mA), no UL94V-0 certification | Requires higher gate drive energy; better suited for industrial PCBs with dedicated gate drivers | Choose when higher surge rating (80 A ITSM) and TO-220 thermal mass are prioritized over low-power gate drive |
| Littelfuse S4006L | 4 A IT(AV), 600 V VDRM, TO-220 package, IGT ≤5 mA, dV/dt = 200 V/µs, RoHS-compliant | Higher blocking voltage and dV/dt immunity; not rated for UL94V-0; larger footprint | Prefer for 230 VAC global designs requiring enhanced transient immunity and higher VRRM margin |
Compared with STMicroelectronics TS3A40 and Littelfuse S4006L, the 3P4MH(14)-AZ offers uniquely low gate trigger current (≤0.2 mA) and UL94V-0 compliance in a compact TO-202AA form factor-making it optimal for space-constrained, low-power-consumption consumer dimmers and audio controls where gate drive simplicity and fire safety are primary constraints.
Availability
3P4MH(14)-AZ is available at Aetrix Electronics and suitable for noncontact switching in consumer audio equipment, lighting dimmers, and small-appliance motor controls requiring stable component supply and long-lifecycle support.
Supply support for 3P4MH(14)-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 Japanese semiconductor manufacturer formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power devices for industrial and consumer systems.
The 3P4MH(14)-AZ belongs to Renesas' legacy thyristor product line designed specifically for cost-sensitive, high-reliability AC power control in Standard-grade applications such as home electronics and light industrial equipment.
FAQ
What is the maximum junction temperature rating for the 3P4MH(14)-AZ?
The 3P4MH(14)-AZ has a specified junction temperature range of −40°C to +125°C. This rating is validated under steady-state conduction at IT(AV) = 3 A with case temperature maintained at 87°C, and supports reliable operation in enclosed consumer enclosures without active cooling. The 3P4MH(14)-AZ must not be operated beyond this limit to avoid parametric shift or premature failure.
Does the 3P4MH(14)-AZ meet UL flammability requirements?
Yes, the 3P4MH(14)-AZ uses flame-retardant epoxy resin conforming to UL94V-0, as explicitly stated in its datasheet. This certification confirms the package material self-extinguishes within 10 seconds after flame removal and produces no flaming drips-critical for compliance in Class II consumer audio and lighting products sold in North America and EU markets.
Can the 3P4MH(14)-AZ replace a 3P6MH in a 400 V design?
Yes-the 3P4MH(14)-AZ is rated for 400 V VDRM/VRRM, matching the lower-voltage variant of the same family. While the 3P6MH supports 600 V, substituting 3P4MH(14)-AZ in a 400 V design is valid and maintains identical pinout, thermal, and gate characteristics. The 3P4MH(14)-AZ retains all electrical specs except blocking voltage, making it a functionally appropriate downgrade where voltage margin permits.
What is the gate non-trigger voltage (VGD) specification for the 3P4MH(14)-AZ?
The gate non-trigger voltage (VGD) for the 3P4MH(14)-AZ is specified as ≥2 V at Tj = 125°C and VDM = VDRM, ensuring noise immunity against spurious gate activation under worst-case thermal and voltage stress. This parameter guarantees the 3P4MH(14)-AZ remains in the off-state even when exposed to elevated temperatures and near-maximum blocking voltage, preventing unintended conduction.
Is heatsink mounting required for the 3P4MH(14)-AZ at full 3 A load?
Yes-operating the 3P4MH(14)-AZ at its rated IT(AV) = 3 A requires heatsink mounting to maintain Tc ≤87°C, as confirmed by the absolute maximum ratings table. Without a heatsink, junction temperature would exceed 125°C due to its 75 °C/W junction-to-ambient thermal resistance. The 3P4MH(14)-AZ is designed for direct attachment to metal heatsinks via its case (anode-connected), leveraging its 8 °C/W Rth(j-c) for effective thermal transfer.
3P4MH(14)-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(14)-AZ FAQ
1.How can I place an order for 3P4MH(14)-AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for 3P4MH(14)-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(14)-AZ reliable?
The price and inventory of 3P4MH(14)-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(14)-AZ is usually 5 days.
3.What payment methods are accepted for 3P4MH(14)-AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3P4MH(14)-AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3P4MH(14)-AZ?
3P4MH(14)-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3P4MH(14)-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(14)-AZ?
For technical support, including 3P4MH(14)-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3P4MH(14)-AZ requirements.
6.How does Aetrix verify that 3P4MH(14)-AZ is sourced from the original manufacturer or authorized distributors?
All 3P4MH(14)-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(14)-AZ meets industry standards.
7.What is the process for return or replacement of 3P4MH(14)-AZ?
All 3P4MH(14)-AZ units undergo pre-shipment inspection (PSI). If there is an issue with 3P4MH(14)-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(14)-AZ part is unused and in its original packaging.
Return procedure for 3P4MH(14)-AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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