Renesas BCR4AS-16LH#B00
- Part No.:
- BCR4AS-16LH#B00
- Manufacturer:
- Renesas
- Category:
- TRIACs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
BCR4AS-16LH#B00.pdf
- Description:
- TRIAC 800V 4A MP3A
- Quantity:
- Payment:

- Shipping:

Inventory:2,843
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Product details
Overview
BCR4AS-16LH#B00 from Renesas Electronics is a planar passivated 800 V, 4 A RMS triac designed for medium-power AC phase-control applications. It delivers 30 A non-repetitive surge current, supports 150 °C junction operation, and features high commutation capability with critical di/dt of 2.5–3.0 A/ms under inductive load conditions - used in heater and small motor control circuits.
For engineers reviewing the BCR4AS-16LH#B00 datasheet, BCR4AS-16LH#B00 pinout, BCR4AS-16LH#B00 application, or BCR4AS-16LH#B00 equivalent, key selection criteria include gate trigger current (10–35 mA), thermal resistance (3.8 °C/W), repetitive off-state voltage (800 V), and MP-3A package compatibility with heatsink-mounting T2 tab.
Technical Context
This triac operates in all four quadrants with verified I/III quadrant triggering behavior and exhibits stable latching/holding current across –40 to +150 °C. Its gate trigger voltage remains ≤1.5 V at 25 °C with 6 V applied, and gate non-trigger voltage stays ≤0.1 V at 150 °C - ensuring noise immunity in noisy AC environments.
The device uses planar passivation for enhanced reliability and achieves high commutation robustness via optimized semiconductor structure, supporting reliable turn-off under inductive loads with dv/dt up to 100 V/μs and di/dt decay rates ≥2.5 A/ms - critical for solid-state relay and dimmer designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDRM | 800 V - blocks full mains voltage surges in 230 VAC systems with safety margin |
| IT (RMS) | 4 A - sustains continuous load current for fan motors, heating elements, and solenoids |
| ITSM | 30 A - handles brief inrush currents during cold-start of resistive/inductive loads |
| Tj max | +150 °C - enables operation in enclosed industrial enclosures without forced cooling |
| Rth(j-c) | 3.8 °C/W - allows thermal design with standard heatsinks when mounted on T2 tab |
| (di/dt)c | 2.5–3.0 A/ms - ensures reliable commutation with typical 50/60 Hz inductive loads |
| IGT (max) | 35 mA - compatible with low-power microcontroller GPIO or optocoupler drivers |
Pinout & Package
Package: MP-3A (JEITA SC-63 / Renesas PRSS0004ZG-A), surface-mountable with isolated T2 tab for heatsink attachment. Case temperature measured directly on T2 tab per datasheet Note 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | T1 Terminal | Main anode 1 - connects to load side of AC line; current flows into device during conduction |
| 2 & 4 | T2 Terminal | Main anode 2 - common high-current path with integrated heatsink tab; electrically tied internally |
| 3 | Gate Terminal | Control input - triggers conduction when pulse exceeds IGT threshold; referenced to T2 |
Key Features
| Feature | Design Value |
|---|---|
| High Commutation | Rated (di/dt)c = 2.5–3.0 A/ms ensures reliable turn-off with inductive loads like motors and transformers |
| Planar Passivation | Enhances long-term stability and moisture resistance in humid or industrial environments |
| Quadrant Flexibility | Verified I/III quadrant triggering enables simplified gate drive circuitry using standard optocouplers |
| Low VGD | Gate non-trigger voltage ≤0.1 V at 150 °C prevents false triggering from thermal leakage current |
| Standard Packing | Tubed format (75 pcs) supports manual prototyping and low-volume production builds |
Applications
| Heater Control | Fan Motor Control |
|---|---|
Use Scenario: Phase-angle controlled heating in commercial ovens and HVAC duct heaters. IC Role / Device Role / Timing Role: Main AC power switch triggered synchronously with zero-crossing detection. Use Value: Enables precise thermal regulation with 4 A RMS handling and 800 V blocking for 230 VAC mains. |
Use Scenario: Speed-controlled AC induction fans in industrial ventilation systems. IC Role / Device Role / Timing Role: Bidirectional AC switch modulating conduction angle to adjust torque and airflow. Use Value: Supports 30 A surge for motor startup and maintains stable operation up to 150 °C ambient. |
| Solid-State Relay Module | Light Dimmer Circuit |
Use Scenario: PCB-mounted SSR replacing electromechanical relays in PLC output modules. IC Role / Device Role / Timing Role: Isolated main switching element driven by optocoupled gate signal. Use Value: Delivers 3.8 °C/W thermal resistance for compact heatsink integration and 2.5 A/ms di/dt rating for inductive load switching. |
Use Scenario: Leading-edge dimmer for incandescent/halogen lamps in residential lighting. IC Role / Device Role / Timing Role: AC line switch triggered after programmable delay from zero-crossing. Use Value: Gate trigger current ≤35 mA allows direct drive from MCU GPIO via current-limiting resistor. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triac switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STMicroelectronics BT138-600E | 600 V VDRM, 8 A IT(RMS), TO-220 package, higher IGT (50 mA max) | Higher current rating but lower voltage margin; requires larger heatsink due to TO-220 Rth(j-c) ≈ 2.5 °C/W | Select when >4 A load current is needed and 600 V blocking suffices for 120 VAC systems |
| ON Semiconductor MAC4D16G | 600 V VDRM, 4 A IT(RMS), DPAK package, IGT ≤35 mA, Rth(j-c) = 4.5 °C/W | Same current rating but lower voltage rating and higher thermal resistance limits power density | Prefer for space-constrained SMT layouts where MP-3A footprint is unavailable, accepting reduced thermal headroom |
Compared with BCR4AS-16LH#B00, BT138-600E offers higher current capacity but sacrifices 200 V blocking margin and requires different mounting; MAC4D16G matches RMS current but trades off voltage rating and thermal performance for smaller footprint.
Availability
BCR4AS-16LH#B00 is available at Aetrix Electronics and suitable for heater control, fan motor control, and solid-state relay design requiring stable component supply and consistent MP-3A packaging.
Supply support for BCR4AS-16LH#B00 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 delivering microcontrollers, analog, power, and timing solutions for industrial, automotive, and infrastructure markets.
The BCR4AS-16LH#B00 belongs to Renesas' medium-power discrete triac family, engineered for reliable AC power control in cost-sensitive industrial and consumer equipment where thermal robustness and quadrants I/III compatibility are essential.
FAQ
What is the maximum junction temperature rating for BCR4AS-16LH#B00?
The BCR4AS-16LH#B00 has a maximum junction temperature (Tj) rating of +150 °C, validated per datasheet Absolute Maximum Ratings table. This allows sustained operation in thermally demanding environments such as enclosed control panels or high-ambient industrial settings. Derating curves in the datasheet confirm allowable RMS current versus case temperature, with full 4 A rating maintained at Tc = 129 °C.
Does BCR4AS-16LH#B00 support all four quadrants of triac triggering?
The BCR4AS-16LH#B00 is characterized for I and III quadrant triggering per datasheet Electrical Characteristics table and Gate Trigger Characteristics Test Circuits. While it can conduct in all four quadrants, only I and III quadrant gate trigger parameters (VFGT, VRGT, IFGT, IRGT) are specified and guaranteed. Quadrant II/IV triggering behavior is not documented and should not be relied upon in production designs.
What is the thermal resistance from junction to case for BCR4AS-16LH#B00?
The junction-to-case thermal resistance (Rth(j-c)) of BCR4AS-16LH#B00 is 3.8 °C/W, measured with case temperature taken at the T2 tab per datasheet Note 3. This value enables accurate heatsink sizing for continuous 4 A operation - for example, a 10 °C/W heatsink yields ~13.8 °C/W total thermal resistance, limiting junction rise to ~55 °C at full load with 25 °C ambient.
Can BCR4AS-16LH#B00 replace BCR4AS-16LH-1#B00 in a design?
Yes - BCR4AS-16LH#B00 and BCR4AS-16LH-1#B00 share identical electrical specifications except for IGT item designation: the "-1" suffix denotes guaranteed ≤10 mA gate trigger current, while standard BCR4AS-16LH#B00 specifies ≤35 mA. Both meet 800 V VDRM, 4 A IT(RMS), and MP-3A packaging. Use BCR4AS-16LH#B00 unless strict low-IGT compliance is required.
What is the surge current rating of BCR4AS-16LH#B00 and how is it defined?
The BCR4AS-16LH#B00 has a non-repetitive surge on-state current (ITSM) rating of 30 A, defined as the peak value of a single 60 Hz sine-wave half-cycle (16.7 ms) under specified test conditions. This rating supports inrush current handling for resistive loads like heaters and cold-start currents for small AC motors, provided surge events remain infrequent and within the I²t limit of 3.7 A²s.
BCR4AS-16LH#B00 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Triac Type:
- Standard
- Voltage - Off State:
- 800 V
- Current - On State (It (RMS)) (Max):
- 4 A
- Voltage - Gate Trigger (Vgt) (Max):
- 1.5 V
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 30A @ 60Hz
- Current - Gate Trigger (Igt) (Max):
- 35 mA
- Current - Hold (Ih) (Max):
- -
- Configuration:
- Single
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- MP-3A
BCR4AS-16LH#B00 FAQ
1.How can I place an order for BCR4AS-16LH#B00 through Aetrix?
Please submit a Request for Quotation (RFQ) for BCR4AS-16LH#B00 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 BCR4AS-16LH#B00 reliable?
The price and inventory of BCR4AS-16LH#B00 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCR4AS-16LH#B00 is usually 5 days.
3.What payment methods are accepted for BCR4AS-16LH#B00?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCR4AS-16LH#B00 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCR4AS-16LH#B00?
BCR4AS-16LH#B00 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCR4AS-16LH#B00 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 BCR4AS-16LH#B00?
For technical support, including BCR4AS-16LH#B00 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCR4AS-16LH#B00 requirements.
6.How does Aetrix verify that BCR4AS-16LH#B00 is sourced from the original manufacturer or authorized distributors?
All BCR4AS-16LH#B00 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 BCR4AS-16LH#B00 meets industry standards.
7.What is the process for return or replacement of BCR4AS-16LH#B00?
All BCR4AS-16LH#B00 units undergo pre-shipment inspection (PSI). If there is an issue with BCR4AS-16LH#B00, 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 BCR4AS-16LH#B00 part is unused and in its original packaging.
Return procedure for BCR4AS-16LH#B00:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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