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Renesas 8P2SMA-AZ
- Part No.:
- 8P2SMA-AZ
- Manufacturer:
- Renesas
- Category:
- SCRs
- Package:
- -
- Datasheet:
-
8P2SMA-AZ.pdf
- Description:
- SILICON CONTROLLED RECTIFIER
- Quantity:
- Payment:
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Product details
Overview
8P2SMA-AZ from Renesas Electronics is a resin-molded silicon-controlled rectifier (SCR) rated for 8 A average on-state current at TC = 88°C, 200 V repetitive peak off-state voltage (VDRM), and 300 V non-repetitive peak off-state voltage (VDSM), used in motor speed control and heater regulation circuits.
For engineers reviewing the 8P2SMA-AZ datasheet, 8P2SMA-AZ pinout, 8P2SMA-AZ application, or 8P2SMA-AZ equivalent, key selection criteria include gate trigger current (≤10 mA), on-state voltage (≤1.4 V at 25 A), thermal resistance (3.7 °C/W junction-to-case), and surge current capability (100 A at 50 Hz).
Technical Context
The 8P2SMA-AZ operates as a unidirectional thyristor with phase-controlled AC switching. It features a gate-triggered latching conduction mechanism, critical dv/dt immunity of 40 V/μs at 125°C, and circuit-commutated turn-off time (tq) ≤100 μs under specified diR/dt and voltage recovery conditions.
Its thermal design relies on direct case-mounting to heatsinks, supported by low Rth(j-c) = 3.7 °C/W and maximum junction temperature of +125°C. The device sustains 12.6 A RMS on-state current and withstands 45 A²s fusing energy over 1–10 ms intervals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDRM / VRRM | 200 V - Maximum repetitive blocking voltage in off-state; defines AC line voltage compatibility up to ~140 V RMS. |
| IT(AV) | 8 A at TC = 88°C - Continuous DC or half-wave AC load current capability with appropriate heatsinking. |
| ITSM | 100 A (50 Hz, 1 cycle) - Short-duration surge rating for motor startup or inrush limiting without latch-up. |
| IGT / VGT | ≤10 mA / ≤1.5 V - Low gate drive power requirement; compatible with microcontroller GPIO or discrete transistor drivers. |
| Rth(j-c) | 3.7 °C/W - Enables thermal management via mechanical mounting; requires ≥25 cm² 1 mm thick aluminum heatsink for full 8 A operation. |
| tq | ≤100 μs - Minimum commutation interval needed in forced-commutated inverters or chopper circuits. |
Pinout & Package
8P2SMA-AZ uses a 3-pin through-hole resin-molded package identical in footprint and mounting to TO-220AB, with standard weight of 2 g and case dimensions 17.0 × 12.0 × 4.7 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Current return path during conduction | Electrically connected to metal tab; must be isolated from heatsink unless referenced to system ground. |
| 2 (Anode) | Main power input terminal | High-side switching node; carries full load current and blocks reverse voltage up to 300 V non-repetitive. |
| 3 (Gate) | Trigger control input | Low-energy pulse input (≤10 mA, ≤1.5 V); polarity-sensitive; requires clean, fast-rising edge for reliable turn-on. |
Key Features
| Feature | Design Value |
|---|---|
| TO-220AB footprint compatibility | Enables drop-in replacement in legacy designs without PCB rework or layout change. |
| High surge current rating | Withstands 100 A single-cycle surges-supports motor start-up and transformer inrush without derating. |
| Low gate trigger threshold | Guaranteed ≤10 mA IGT ensures compatibility with 3.3 V/5 V logic-level drivers and reduces gate driver component count. |
| Controlled turn-off timing | tq ≤100 μs enables use in medium-frequency phase-control and forced-commutated topologies up to ~5 kHz. |
Applications
| Motor Speed Control | Heater Temperature Regulation |
|---|---|
Use Scenario: Variable-speed fan or blower in HVAC systems using phase-angle controlled AC supply. IC Role / Device Role / Timing Role: Main power switching element controlling RMS voltage delivered to universal motor windings. Use Value: Enables smooth, low-noise speed adjustment with 8 A continuous current handling and robust dv/dt immunity against motor back-EMF transients. | Use Scenario: Solid-state relay in oven or soldering station maintaining setpoint temperature via duty-cycled heating element. IC Role / Device Role / Timing Role: Bidirectional AC switch replacing electromechanical relay; triggered once per half-cycle. Use Value: Eliminates contact wear and bounce; supports >10⁶ cycles with zero-crossing-compatible gate drive and 200 V blocking capability. |
| Battery Charger Control | Automotive Voltage Regulator |
Use Scenario: Constant-voltage stage in multi-stage lead-acid battery charger using transformer-fed rectified AC. IC Role / Device Role / Timing Role: SCR-based crowbar or series-pass regulator controlling DC output voltage via phase delay. Use Value: Delivers stable 13.8 V output with 8 A average current; leverages low VTM (≤1.4 V) to minimize conduction loss and thermal stress. | Use Scenario: Field-current regulator in alternator excitation circuit for automotive 12 V systems. IC Role / Device Role / Timing Role: Gate-controlled rectifier modulating rotor field strength based on sensed battery voltage. Use Value: Operates reliably across −40°C to +125°C ambient; meets automotive thermal cycling requirements with validated Rth(j-c) and Tj max ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SCR applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BT169G | Lower IT(AV) = 0.8 A, VDRM = 400 V, TO-92 package | Not suitable for 8 A loads; limited to signal-level triggering or pilot SCRs | Select only for gate-driving auxiliary functions-not main power switching. |
| TYN612 | IT(AV) = 12 A, VDRM = 600 V, TO-220 package, higher IGT (≤50 mA) | Higher voltage/current rating but requires stronger gate drive; larger thermal mass | Choose when upgrading for 240 VAC systems or >8 A continuous loads with available gate drive headroom. |
Compared with BT169G and TYN612, the 8P2SMA-AZ offers optimal balance of 8 A current capacity, 200 V blocking, low gate drive demand, and TO-220AB mechanical compatibility-making it ideal for cost-sensitive, thermally constrained household appliance controls where precise mid-range power switching is required.
Availability
8P2SMA-AZ is available at Aetrix Electronics and suitable for motor speed control, heater temperature regulation, and battery charger applications requiring stable component supply and long-term industrial availability.
Supply support for 8P2SMA-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, power, and discrete devices.
The 8P2SMA-AZ belongs to Renesas' legacy thyristor product line designed specifically for robust, low-cost AC power control in consumer and industrial appliances-emphasizing reliability under thermal cycling and high surge conditions.
FAQ
What is the maximum junction temperature specification for the 8P2SMA-AZ?
The 8P2SMA-AZ has a maximum junction temperature (Tj) rating of +125°C, verified per its Renesas datasheet D17164EJ4V0DS00. This limit governs thermal design margins and must not be exceeded during steady-state or transient operation. Derating curves in Figure 11 confirm 8 A IT(AV) is sustainable only when case temperature remains ≤88°C-requiring appropriate heatsinking. Exceeding Tj = +125°C risks irreversible parametric shift or catastrophic failure of the 8P2SMA-AZ.
Does the 8P2SMA-AZ support bidirectional AC switching?
No, the 8P2SMA-AZ is a unidirectional SCR and conducts current only from anode to cathode when triggered. It blocks reverse voltage up to 300 V (VRSM) but cannot be turned on in reverse polarity. For full-wave AC control, two 8P2SMA-AZ devices must be connected in inverse-parallel, or a dedicated triac such as the Q6016LH4 should be used instead of the 8P2SMA-AZ.
What gate drive circuit is recommended for reliable triggering of the 8P2SMA-AZ?
A gate drive delivering ≥1.5 V and ≥10 mA peak pulse (per datasheet VGT/IGT specs at 25°C) is required. A common implementation uses a 100 Ω series resistor driven by a 5 V MCU GPIO or optocoupler output. Pulse width must exceed 10 μs (per Figure 7), and dv/dt at the gate must be limited to avoid false triggering. The 8P2SMA-AZ gate is not ESD-protected-transient suppression is advised in noisy environments.
Can the 8P2SMA-AZ replace a TO-220AB-packaged SCR in existing PCBs?
Yes-the 8P2SMA-AZ uses the exact same TO-220AB mechanical outline, pin assignment (anode, cathode, gate), and mounting hole pattern. Its 17.0 × 12.0 mm footprint, 2.54 mm lead pitch, and 2 g mass match industry-standard TO-220AB dimensions. No PCB redesign or solder stencil changes are needed when substituting the 8P2SMA-AZ into legacy layouts originally designed for TO-220AB SCRs.
Is the 8P2SMA-AZ compliant with RoHS and halogen-free standards?
Yes-the 8P2SMA-AZ is RoHS-compliant and halogen-free, consistent with Renesas Electronics' environmental policy stated in the datasheet and confirmed on their official website. It contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE above threshold limits, and brominated flame retardants are excluded. Full compliance documentation is available through Renesas' material declarations portal for the 8P2SMA-AZ.
8P2SMA-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:
- -
8P2SMA-AZ FAQ
1.How can I place an order for 8P2SMA-AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for 8P2SMA-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 8P2SMA-AZ reliable?
The price and inventory of 8P2SMA-AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 8P2SMA-AZ is usually 5 days.
3.What payment methods are accepted for 8P2SMA-AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 8P2SMA-AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 8P2SMA-AZ?
8P2SMA-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 8P2SMA-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 8P2SMA-AZ?
For technical support, including 8P2SMA-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 8P2SMA-AZ requirements.
6.How does Aetrix verify that 8P2SMA-AZ is sourced from the original manufacturer or authorized distributors?
All 8P2SMA-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 8P2SMA-AZ meets industry standards.
7.What is the process for return or replacement of 8P2SMA-AZ?
All 8P2SMA-AZ units undergo pre-shipment inspection (PSI). If there is an issue with 8P2SMA-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 8P2SMA-AZ part is unused and in its original packaging.
Return procedure for 8P2SMA-AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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