Renesas BCR4AS-16LH-1#B00

Overview

BCR4AS-16LH-1#B00 from Renesas Electronics is a planar passivated 800 V, 4 A RMS triac designed for medium-power AC phase-control applications. It features IGT item:1 (10 mA gate trigger current), high commutation capability (di/dt)_c = 2.5 A/ms at 10 V/μs, and operates up to 150 °C junction temperature - enabling reliable switching in heater and small motor control circuits with resistive or inductive loads.

For engineers reviewing the BCR4AS-16LH-1#B00 datasheet, BCR4AS-16LH-1#B00 pinout, BCR4AS-16LH-1#B00 application, or BCR4AS-16LH-1#B00 equivalent, key selection criteria include verified gate trigger sensitivity (IFGT_I ≤ 10 mA), thermal resistance R_th(j-c) = 3.8 °C/W, and commutation robustness under inductive load transients.

Technical Context

This triac operates in quadrants I and III, with gate trigger voltage V_FGTⅠ ≤ 1.5 V at T_j = 25 °C and V_D = 6 V. Its non-repetitive peak off-state voltage V_DSM is 960 V, supporting surge margin above standard 800 V RMS line voltages.

Commutation performance is characterized at T_j = 125 °C and 150 °C, with critical di/dt ratings increasing from 2.5 A/ms (dv/dt)_c < 10 V/μs to 3.0 A/ms (dv/dt)_c < 100 V/μs - indicating enhanced turn-off reliability under fast-varying AC line conditions.

Key Specifications

Pinout & Package

BCR4AS-16LH-1#B00 uses the MP-3A package (JEITA SC-63, Renesas PRSS0004ZG-A), a surface-mountable, isolated 4-terminal triac housing with T2 tab as thermal and electrical reference. The T2 terminal is internally connected to both pins 2 and 4 per outline diagram.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar triac-based AC control applications.

Compared with BCR4AS-16LH-1#B00, BT134-600E trades blocking voltage and package integration for legacy compatibility, while MAC4D16G offers superior thermal metrics at the cost of larger PCB area and less stringent gate sensitivity - making BCR4AS-16LH-1#B00 optimal for compact, surge-resilient SMT heater/motor controllers.

Availability

BCR4AS-16LH-1#B00 is available at Aetrix Electronics and suitable for heater control, small motor regulation, and general-purpose AC phase-control applications requiring stable component supply, consistent parametric performance, and RoHS-compliant SMT packaging.

Supply support for BCR4AS-16LH-1#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 series belongs to Renesas' medium-power discrete triac product line, engineered specifically for cost-sensitive, high-reliability AC load switching in consumer and industrial appliances.

FAQ

What is the gate trigger current specification for BCR4AS-16LH-1#B00?

The BCR4AS-16LH-1#B00 has an IGT item:1 rating, meaning its maximum gate trigger current (IFGT_I) is 10 mA at T_j = 25 °C, V_D = 6 V, R_L = 6 Ω, and R_G = 330 Ω. This low trigger threshold allows direct drive from microcontroller outputs or low-power optocouplers without additional amplification. The BCR4AS-16LH-1#B00 maintains this specification across its full operating temperature range, with typical values remaining below 10 mA up to 125 °C.

Does BCR4AS-16LH-1#B00 support operation with inductive loads?

Yes, BCR4AS-16LH-1#B00 is explicitly characterized for inductive load commutation, with (di/dt)_c rated at 2.5 A/ms (dv/dt)_c < 10 V/μs and 3.0 A/ms (dv/dt)_c < 100 V/μs at T_j = 125 °C. These values confirm its ability to reliably turn off under the high-voltage transients generated by motors and transformers. The BCR4AS-16LH-1#B00 datasheet provides test waveforms and conditions for inductive commutation validation, making it suitable for fan and pump motor control without mandatory snubber circuits.

What is the thermal resistance of BCR4AS-16LH-1#B00, and how does it affect heatsink design?

The junction-to-case thermal resistance R_th(j-c) of BCR4AS-16LH-1#B00 is 3.8 °C/W, measured at the T2 tab. At full 4 A RMS conduction, on-state losses reach ~6.4 W (V_TM ≤ 1.6 V), requiring a total thermal path (case-to-ambient) of ≤ 15 °C/W to maintain T_j ≤ 150 °C at 50 °C ambient. This means even modest aluminum heatsinks (e.g., 10 cm² × 1 mm thick) are sufficient when mounted to the T2 tab using thermally conductive paste. The BCR4AS-16LH-1#B00's MP-3A package facilitates this via its exposed metal tab and standardized footprint.

Is BCR4AS-16LH-1#B00 compatible with zero-crossing trigger circuits?

BCR4AS-16LH-1#B00 supports both phase-angle and zero-crossing triggering modes due to its quadrant I/III operation and low I_GT. When used with zero-crossing optocouplers (e.g., MOC3041), the BCR4AS-16LH-1#B00 turns on within 100 μs of the AC zero crossing, minimizing EMI and inrush current. Its V_GD = 0.1 V at 150 °C ensures gate immunity to noise during the zero-crossing interval, preventing false triggering - a key reliability factor confirmed in Renesas' gate characteristics curves.

What is the maximum repetitive peak off-state voltage for BCR4AS-16LH-1#B00?

The maximum repetitive peak off-state voltage V_DRM for BCR4AS-16LH-1#B00 is 800 V, tested with gate open at T_j = 150 °C. This rating ensures safe blocking of 230 VAC and 277 VAC mains with >2× safety margin against transient overvoltages (e.g., EN 61000-4-5 level 3 surges). The BCR4AS-16LH-1#B00 also specifies a non-repetitive peak voltage V_DSM of 960 V, further validating its robustness in real-world AC distribution environments.