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Renesas CR8CM-12A-A8#P01
- Part No.:
- CR8CM-12A-A8#P01
- Manufacturer:
- Renesas
- Category:
- SCRs
- Package:
- -
- Datasheet:
-
CR8CM-12A-A8#P01.pdf
- Description:
- SILICON CONTROLLED RECTIFIER
- Quantity:
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Product details
Overview
CR8CM-12A-A8#P01 from Renesas Electronics is a 600 V, 8 A medium-power thyristor (SCR) designed for AC line-controlled switching in industrial power electronics. It delivers 12.6 A RMS on-state current at Tc = 99 °C, features 15 mA gate trigger current, and uses planar passivation for stable blocking performance in heater control, motor phase-angle regulation, and DC power supply crowbar circuits.
For engineers reviewing the CR8CM-12A-A8#P01 datasheet, CR8CM-12A-A8#P01 pinout, CR8CM-12A-A8#P01 application, or CR8CM-12A-A8#P01 equivalent, this device requires attention to gate drive timing, thermal interface resistance (Rth(j-c) = 2.0 °C/W), surge I²t rating (72 A²s), and non-insulated TO-220AB/TO-220ABA mounting constraints in high-reliability AC mains interfaces.
Technical Context
The CR8CM-12A-A8#P01 is a four-layer silicon-controlled rectifier with planar passivated junctions, rated for repetitive 600 V off-state blocking and 120 A non-repetitive surge current. Its gate trigger voltage is ≤1.0 V at 25 °C, and holding current is typ. 15 mA - enabling reliable turn-on with low-power gate drivers while maintaining latch-up stability under load transients.
Thermal design centers on junction-to-case conduction via the anode tab (Rth(j-c) = 2.0 °C/W), requiring direct mounting to heatsinks with thermal grease (Rth(c-f) = 1.0 °C/W). The device operates across –40 to +125 °C junction temperature and supports single-phase half-wave, full-wave, and rectangular wave conduction modes per its derating curves.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDRM / VRRM | 600 V - Sustains full AC line peaks (e.g., 400 V RMS industrial mains) without false triggering |
| IT(AV) | 8 A - Supports continuous resistive/inductive loads up to 1.8 kW at 230 V AC with proper heatsinking |
| IGT | 15 mA - Compatible with standard microcontroller GPIO or optocoupler gate drivers without amplification |
| VTM | ≤1.4 V @ 25 A - Limits conduction loss to <35 W at full surge, critical for thermal margin in compact enclosures |
| I²t | 72 A²s - Withstands one 50 Hz half-cycle fault (10 ms) before fuse activation or protection tripping |
| Rth(j-c) | 2.0 °C/W - Requires ≥10 cm² aluminum heatsink (with grease) to maintain Tj ≤125 °C at 8 A average load |
| Tj Range | –40 to +125 °C - Validated for operation in uncontrolled ambient environments including factory floors and outdoor enclosures |
Pinout & Package
CR8CM-12A-A8#P01 is supplied in non-insulated TO-220AB (RENESAS PRSS0004AG-A) and TO-220ABA (RENESAS PRSS0004AT-A) packages. Both variants share identical terminal assignment and thermal pad layout; mounting requires electrically isolated hardware if chassis grounding is used.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode) | Main current path input | High-current AC line input terminal; electrically connected to metal tab - must be isolated from chassis unless system ground referenced |
| 2 (Cathode) | Main current path output | Connects to load return; forms main conduction loop with Anode; carries full load current during conduction |
| 3 (Gate) | Control input | Low-energy trigger node; requires ≤15 mA pulse at ≤1.0 V to initiate latching; sensitive to dv/dt-induced false turn-on |
| 4 (Anode) | Main current path input (duplicate) | Second anode connection for mechanical stability and current sharing; internally bonded to Pin 1 - must be tied to same potential |
Key Features
| Feature | Design Value |
|---|---|
| Planar passivation structure | Enables stable VDRM/VRRM performance over temperature and lifetime, reducing parameter drift in long-term industrial deployments |
| Non-insulated TO-220 package | Maximizes thermal transfer to heatsink but mandates isolation planning when mounting to grounded metal enclosures |
| Low IGT (15 mA) | Reduces gate driver component count and power consumption - compatible with PC817 optocouplers and 3.3 V MCU outputs |
| 120 A ITSM surge rating | Survives inrush currents from cold filament lamps, transformer magnetization, and motor startup without degradation |
| 1.4 V VTM conduction drop | Limits steady-state power dissipation to ~11.2 W at 8 A average, easing thermal design versus higher-VTM alternatives |
Applications
| Heater Temperature Control | AC Motor Speed Regulation |
|---|---|
Use Scenario: Phase-angle controlled heating in industrial ovens and plastic extruders using 230 V / 400 V AC mains. IC Role / Device Role / Timing Role: Thyristor acting as bidirectional AC switch triggered at variable conduction angles by zero-crossing synchronized gate pulses. Use Value: Enables precise 0–100% power delivery with minimal harmonic distortion and no moving parts - replacing electromechanical contactors. |
Use Scenario: Single-phase induction motor speed control in HVAC blowers and conveyor drives. IC Role / Device Role / Timing Role: SCR-based phase-control element in back-to-back configuration for adjustable torque and RPM without VFD complexity. Use Value: Delivers smooth low-speed operation down to ~30% rated speed with inherent short-circuit robustness and low EMI vs. PWM inverters. |
| DC Power Supply Crowbar | Lighting Dimmer Modules |
Use Scenario: Overvoltage protection circuit in regulated linear or SMPS DC supplies feeding sensitive instrumentation. IC Role / Device Role / Timing Role: Fast-acting crowbar device triggered by comparator output to short output rail and blow fuse during overvoltage events. Use Value: Responds within microseconds to >110% overvoltage, clamping energy before downstream ICs sustain damage - leveraging low VGD threshold for noise immunity. |
Use Scenario: Leading-edge dimming modules for commercial LED and incandescent lighting systems operating on 120 V / 230 V AC. IC Role / Device Role / Timing Role: Main switching element in TRIAC-compatible dimmer topology, gated synchronously with AC zero-crossing detection. Use Value: Provides flicker-free dimming with high efficiency (>92%) and compatibility with legacy wall-mounted dimmer switches and trailing-edge controllers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar thyristor switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STMicroelectronics TS820-800 | Same 8 A IT(AV), 800 V VDRM, but higher IGT (50 mA); TO-220AB package with insulated tab option available | Better suited for higher-voltage 480 V AC systems; requires stronger gate drive; offers optional electrical isolation | Select when VDRM margin >200 V is required or chassis isolation simplifies assembly |
| ON Semiconductor 2N6508 | Lower 6 A IT(AV), 600 V VDRM, 35 mA IGT; TO-220 package with non-insulated tab | Reduced thermal capacity limits continuous use above 5 A; less suitable for sustained heater/motor loads | Choose only for cost-sensitive, low-duty-cycle applications where peak current remains <8 A |
Compared with STMicroelectronics TS820-800 and ON Semiconductor 2N6508, CR8CM-12A-A8#P01 provides optimal balance of gate sensitivity (15 mA), thermal capability (12.6 A RMS), and 600 V blocking - making it preferred for medium-power industrial controls where drive simplicity and heatsink efficiency are prioritized.
Availability
CR8CM-12A-A8#P01 is available at Aetrix Electronics and suitable for heater control, motor phase-angle regulation, and DC crowbar protection requiring stable component supply across extended production lifecycles.
Supply support for CR8CM-12A-A8#P01 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 is a global semiconductor leader specializing in microcontrollers, analog, power, and timing solutions for industrial, automotive, and infrastructure markets.
The CR8CM-12A-A8#P01 belongs to Renesas' medium-power thyristor family engineered for robust AC mains switching in factory automation, building management, and power conversion systems where reliability under thermal stress is critical.
FAQ
What is the maximum allowable case temperature for continuous operation of CR8CM-12A-A8#P01 at 8 A average current?
The CR8CM-12A-A8#P01 supports continuous operation at IT(AV) = 8 A only when case temperature (Tc) is maintained at ≤99 °C, as specified in the datasheet's "Average On-State Current" derating curves. Exceeding this limit risks thermal runaway due to positive temperature coefficient of on-state voltage - proper heatsink sizing and thermal interface material are mandatory to achieve this condition in real-world layouts.
Can CR8CM-12A-A8#P01 be used in a back-to-back configuration for AC switching without a TRIAC?
Yes, CR8CM-12A-A8#P01 can be configured in anti-parallel pairs to emulate bidirectional AC switching like a TRIAC. Each device handles one half-cycle; gate signals must be isolated and timed to match polarity. This approach avoids TRIAC limitations such as asymmetrical triggering and dv/dt sensitivity - but requires two gate drivers and careful layout to prevent cross-conduction during zero-crossing transitions.
Is CR8CM-12A-A8#P01 RoHS compliant and lead-free?
Yes, CR8CM-12A-A8#P01 meets RoHS Directive 2011/65/EU requirements and is manufactured with lead-free terminations and halogen-free molding compound, as confirmed in Renesas' official product compliance documentation and material declarations. No exemptions apply - full compliance is verified for both TO-220AB and TO-220ABA package variants.
What is the minimum gate trigger voltage for CR8CM-12A-A8#P01 at elevated junction temperatures?
The CR8CM-12A-A8#P01 exhibits increasing gate trigger voltage with temperature: VGT rises to ~1.3 V at Tj = 125 °C (per datasheet curve on Page 5), though the absolute maximum remains ≤1.5 V. Designers must ensure gate drive maintains ≥1.5 V headroom under worst-case thermal conditions to guarantee reliable turn-on - especially in enclosed, high-ambient environments.
Does CR8CM-12A-A8#P01 require snubber circuits in inductive load applications?
Yes, CR8CM-12A-A8#P01 requires RC snubbers across anode–cathode when switching inductive loads (e.g., motors, solenoids) to suppress dv/dt-induced false triggering and commutation overshoot. Typical values are 100 Ω + 0.1 µF, selected based on load L/R ratio and operating frequency - omission risks erratic turn-off behavior and premature device failure due to voltage transients exceeding 720 V VRSM rating.
CR8CM-12A-A8#P01 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:
- -
CR8CM-12A-A8#P01 FAQ
1.How can I place an order for CR8CM-12A-A8#P01 through Aetrix?
Please submit a Request for Quotation (RFQ) for CR8CM-12A-A8#P01 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 CR8CM-12A-A8#P01 reliable?
The price and inventory of CR8CM-12A-A8#P01 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CR8CM-12A-A8#P01 is usually 5 days.
3.What payment methods are accepted for CR8CM-12A-A8#P01?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CR8CM-12A-A8#P01 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CR8CM-12A-A8#P01?
CR8CM-12A-A8#P01 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CR8CM-12A-A8#P01 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 CR8CM-12A-A8#P01?
For technical support, including CR8CM-12A-A8#P01 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CR8CM-12A-A8#P01 requirements.
6.How does Aetrix verify that CR8CM-12A-A8#P01 is sourced from the original manufacturer or authorized distributors?
All CR8CM-12A-A8#P01 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 CR8CM-12A-A8#P01 meets industry standards.
7.What is the process for return or replacement of CR8CM-12A-A8#P01?
All CR8CM-12A-A8#P01 units undergo pre-shipment inspection (PSI). If there is an issue with CR8CM-12A-A8#P01, 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 CR8CM-12A-A8#P01 part is unused and in its original packaging.
Return procedure for CR8CM-12A-A8#P01:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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