Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Discrete Semiconductor Products > Thyristors > SCRs

Renesas 2S4M(CY)-AZ

Name: 2S4M(CY)-AZ
Brand: Renesas
SKU: 2S4M(CY)-AZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: 2S4M(CY)-AZ

Manufacturer:: Renesas

Category:: SCRs

Package:: -

Datasheet:: 2S4M(CY)-AZ.pdf

Description:: SILICON CONTROLLED RECTIFIER

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:9,825

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

2S4M(CY)-AZ from Renesas Electronics is a 400 V repetitive peak off-state voltage, 2 A average on-state current, P-gate fully diffused mold silicon-controlled rectifier (SCR) in TO-202AA package, designed for high-speed switching in inverter and solenoid valve drive circuits.

For engineers reviewing the 2S4M(CY)-AZ datasheet, 2S4M(CY)-AZ pinout, 2S4M(CY)-AZ application, or 2S4M(CY)-AZ equivalent, key selection criteria include commutating turn-off time (15 µs), critical dV/dt (10 V/µs), gate trigger current (300 µA max), and junction-to-case thermal resistance (10 °C/W).

Technical Context

This SCR employs a P-gate fully diffused structure optimized for fast turn-on (2 µs typical) and controlled commutation in half-wave AC switching applications. Its design supports reliable triggering at low gate currents and stable blocking up to 400 V repetitive off-state voltage with 500 V non-repetitive peak capability.

The device operates across −40°C to +125°C junction temperature range and features flame-retardant UL94V-0 epoxy encapsulation. Thermal performance is characterized by 10 °C/W junction-to-case resistance, enabling direct heatsink mounting via the TO-202AA metal tab.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DRM	400 V - Maximum repetitive off-state voltage before conduction; defines AC line isolation capability in half-wave control.
I_T(AV)	2 A at T_c = 77°C - Continuous RMS current handling under single half-wave, 180° conduction; sets thermal derating baseline.
t_q	15 µs - Commutating turn-off time at 125°C; determines minimum dead-time in forced-commutated inverters.
dV/dt	10 V/µs - Critical rate of rise of off-state voltage; defines snubber requirements to prevent false triggering.
I_GT	300 µA max - Gate trigger current at 6 V anode-cathode voltage; enables low-power driver interface compatibility.
R_th(j–c)	10 °C/W - Junction-to-case thermal resistance; allows direct heatsink attachment without thermal interface material.
V_TM	2.2 V max - On-state voltage at 4 A; determines conduction loss and self-heating under load.

Pinout & Package

Package: TO-202AA - Molded plastic case with integral metal tab for mechanical mounting and thermal conduction; flange serves as cathode terminal.

Pin/Terminal	Circuit Role	Design Meaning
<1> Cathode	Main current return path during conduction	Electrically and thermally connected to metal tab; primary heat dissipation surface.
<2> Anode	Main current input terminal during forward conduction	High-voltage blocking terminal; carries full load current when triggered.
<3> Gate	Control input for turn-on initiation	Low-current, low-voltage sensitive node requiring ≤300 µA to initiate latching.

Key Features

Feature	Design Value
High-speed switching	2 µs turn-on time enables use in 10 kHz pulse applications and compact inverter topologies.
Flame-retardant encapsulation	UL94V-0 rated epoxy resin ensures compliance with safety standards for consumer and industrial enclosures.
TO-202AA mechanical form	Standardized footprint and lead spacing simplify PCB layout and automated assembly; tab-mounting compatible with common jigs.
Thermal robustness	Junction temperature range of −40°C to +125°C supports operation in unventilated industrial environments.

Applications

AC Motor Speed Control	Inverter Output Stage
Use Scenario: Phase-angle controlled dimming and speed regulation of universal motors in power tools and fans. IC Role / Device Role / Timing Role: Main switching element in single-phase half-wave AC controller; triggered synchronously with zero-crossing detection. Use Value: 400 V V_DRM and 2 A I_T(AV) support 120 V/240 V mains operation with margin for surge transients.	Use Scenario: Forced-commutated output stage in low-power DC-AC inverters for UPS and solar micro-inverters. IC Role / Device Role / Timing Role: Bidirectional switch in half-bridge configuration; commutated using external LC network. Use Value: 15 µs t_q and 10 V/µs dV/dt rating enable reliable turn-off at 1–5 kHz switching frequencies.
Solenoid Valve Driver	Ignition Pulse Generator
Use Scenario: High-reliability on/off control of 24 V DC solenoids in HVAC actuators and industrial fluid control systems. IC Role / Device Role / Timing Role: Latching switch replacing mechanical relay; triggered once per actuation cycle. Use Value: Low 300 µA I_GT reduces driver circuit complexity; 10 °C/W R_th(j–c) allows passive heatsinking in sealed enclosures.	Use Scenario: Repetitive high-voltage pulse generation for gas discharge ignition in commercial lighting and appliance burners. IC Role / Device Role / Timing Role: Fast-switching thyristor in resonant pulse transformer driver circuit. Use Value: 50 A/µs dI/dt rating and 500 V non-repetitive V_RSM withstand short-duration high-current pulses without failure.

AC Motor Speed Control

Inverter Output Stage

Use Scenario: Phase-angle controlled dimming and speed regulation of universal motors in power tools and fans.

IC Role / Device Role / Timing Role: Main switching element in single-phase half-wave AC controller; triggered synchronously with zero-crossing detection.

Use Value: 400 V V_DRM and 2 A I_T(AV) support 120 V/240 V mains operation with margin for surge transients.

Use Scenario: Forced-commutated output stage in low-power DC-AC inverters for UPS and solar micro-inverters.

IC Role / Device Role / Timing Role: Bidirectional switch in half-bridge configuration; commutated using external LC network.

Use Value: 15 µs t_q and 10 V/µs dV/dt rating enable reliable turn-off at 1–5 kHz switching frequencies.

Solenoid Valve Driver

Ignition Pulse Generator

Use Scenario: High-reliability on/off control of 24 V DC solenoids in HVAC actuators and industrial fluid control systems.

IC Role / Device Role / Timing Role: Latching switch replacing mechanical relay; triggered once per actuation cycle.

Use Value: Low 300 µA I_GT reduces driver circuit complexity; 10 °C/W R_th(j–c) allows passive heatsinking in sealed enclosures.

Use Scenario: Repetitive high-voltage pulse generation for gas discharge ignition in commercial lighting and appliance burners.

IC Role / Device Role / Timing Role: Fast-switching thyristor in resonant pulse transformer driver circuit.

Use Value: 50 A/µs dI/dt rating and 500 V non-repetitive V_RSM withstand short-duration high-current pulses without failure.

Equivalent & Alternatives

The following parts are listed as comparable options for similar SCR applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STMicroelectronics TS420-400	400 V V_DRM, 2 A I_T(AV), but TO-92 package; higher R_th(j–a) (120 °C/W) limits power handling.	Suitable only for low-duty-cycle, ambient-cooled applications; not recommended for continuous 2 A loads.	Select when board space is constrained and thermal budget permits lower average current.
ON Semiconductor 2N6504	400 V V_DRM, 4 A I_T(AV), TO-220 package; 25 µs t_q vs. 15 µs for 2S4M(CY)-AZ.	Better thermal capacity but slower commutation; requires larger snubber for same switching frequency.	Select when higher current headroom is needed and 10 µs longer turn-off time is acceptable.

Compared with TS420-400 and 2N6504, the 2S4M(CY)-AZ delivers superior commutation speed (15 µs t_q) and thermal efficiency (10 °C/W R_th(j–c)) in a compact TO-202AA package-making it optimal for space-constrained, medium-frequency inverter and solenoid drive designs where fast, reliable turn-off is critical.

Availability

2S4M(CY)-AZ is available at Aetrix Electronics and suitable for inverter output stages, solenoid valve drivers, AC motor speed controls, and ignition pulse generators requiring stable component supply and long-term industrial availability.

Supply support for 2S4M(CY)-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 manufacturer formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, power, and discrete devices.

The 2S4M(CY)-AZ belongs to Renesas' legacy high-speed SCR product line, engineered specifically for reliable, low-loss AC power control in consumer and industrial equipment operating at commercial and medium-frequency ranges.

FAQ

What is the maximum junction temperature rating for the 2S4M(CY)-AZ?

The 2S4M(CY)-AZ has a specified junction temperature range of −40°C to +125°C. This rating is confirmed in the Absolute Maximum Ratings table of the original Renesas (formerly NEC) datasheet D13535EJ2V0DS. Operation beyond +125°C risks irreversible degradation of the P-gate fully diffused structure. Derating curves in Figure 6 and 7 apply for sustained 2 A average current at elevated case temperatures.

Does the 2S4M(CY)-AZ have a specified gate non-trigger voltage (V_GD)?

Yes, the 2S4M(CY)-AZ specifies a gate non-trigger voltage (V_GD) of 0.2 V minimum at T_j = 125°C and V_DM = ⅔ V_DRM. This parameter ensures noise immunity by defining the maximum voltage the gate can tolerate without unintended turn-on. It is explicitly listed in the Electrical Characteristics table under "Gate non-trigger voltage" in the official Renesas datasheet.

Is the 2S4M(CY)-AZ RoHS compliant?

Yes, the 2S4M(CY)-AZ meets EU RoHS Directive requirements. Renesas Electronics confirms RoHS compliance for this part in its environmental documentation and product change notices. The device uses lead-free terminations and halogen-free flame-retardant epoxy (UL94V-0), consistent with standard manufacturing practices adopted post-2006 for Renesas' legacy discrete portfolio including the 2S2M/2S4M series.

What is the fusing I²t rating for the 2S4M(CY)-AZ?

The 2S4M(CY)-AZ has a fusing I²t rating of 1.6 A²s for time durations between 1 ms and 10 ms, as specified in the Absolute Maximum Ratings table. This value represents the thermal energy limit the device can withstand during short-circuit or surge events before metallization failure. It is used to coordinate upstream fuse selection and transient protection design in AC line applications.

Can the 2S4M(CY)-AZ be used in DC circuits?

The 2S4M(CY)-AZ is primarily designed for AC phase-control and commutated switching, but it can operate in DC circuits if a forced commutation path is provided. Its 15 µs commutating turn-off time (t_q) and 50 A/µs dI/dt rating support active turn-off in DC chopper or soft-start applications. However, unlike GTOs or IGCTs, it lacks inherent DC turn-off capability and requires external circuitry to interrupt current flow.

2S4M(CY)-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:: -

2S4M(CY)-AZ FAQ

1.How can I place an order for 2S4M(CY)-AZ through Aetrix?

Please submit a Request for Quotation (RFQ) for 2S4M(CY)-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 2S4M(CY)-AZ reliable?

The price and inventory of 2S4M(CY)-AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2S4M(CY)-AZ is usually 5 days.

3.What payment methods are accepted for 2S4M(CY)-AZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2S4M(CY)-AZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2S4M(CY)-AZ?

2S4M(CY)-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2S4M(CY)-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 2S4M(CY)-AZ?

For technical support, including 2S4M(CY)-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2S4M(CY)-AZ requirements.

6.How does Aetrix verify that 2S4M(CY)-AZ is sourced from the original manufacturer or authorized distributors?

All 2S4M(CY)-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 2S4M(CY)-AZ meets industry standards.

7.What is the process for return or replacement of 2S4M(CY)-AZ?

All 2S4M(CY)-AZ units undergo pre-shipment inspection (PSI). If there is an issue with 2S4M(CY)-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 2S4M(CY)-AZ part is unused and in its original packaging.

Return procedure for 2S4M(CY)-AZ:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…