Renesas BCR5FM-14LJ#BH0

Overview

BCR5FM-14LJ#BH0 from Renesas Electronics is a 700 V, 5 A insulated triac in TO-220FPA package, designed for medium-power AC phase control in motor drives, heater regulation, and solid-state relays. It features 800 V repetitive peak off-state voltage at 125 °C, 2000 V isolation voltage, and gate trigger current of 30 mA across all quadrants.

For engineers reviewing the BCR5FM-14LJ#BH0 datasheet, BCR5FM-14LJ#BH0 pinout, BCR5FM-14LJ#BH0 application, or BCR5FM-14LJ#BH0 equivalent, this device supports robust AC switching in industrial temperature ranges (–40 °C to +150 °C), requires heatsink mounting with floating potential per safety guidelines, and delivers stable conduction under 60 Hz sine-wave surge (50 A, 1-cycle).

Technical Context

This triac operates in all four quadrants with symmetrical gate trigger characteristics: V_{FGT I}, V_{RG T I}, and V_{RG T III} each ≤1.5 V at 25 °C; I_{F GT I}, I_{R GT I}, and I_{R GT III} each ≤30 mA. Its critical commutation dv/dt rating is 5 V/µs at 125 °C and drops to 1 V/µs at 150 °C, reflecting thermal derating for reliable turn-off under inductive loads.

Thermal design is constrained by R_th(j–c) = 4.9 °C/W (junction-to-case), requiring mechanical mounting with thermal grease (R_th(c–f) = 0.5 °C/W). The planar passivation structure and insulated package support 2000 V AC isolation (1 minute, 25 °C), enabling use in safety-critical AC mains interfaces without additional barrier components.

Key Specifications

Pinout & Package

BCR5FM-14LJ#BH0 uses the TO-220FPA package (Renesas code PRSS0003AP-A), an insulated variant of TO-220 with plastic body and electrically isolated metal tab. Mounting requires floating heatsink per safety note in datasheet.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BCR5FM-14LJ#BH0, BTB16-600BW offers higher current but lacks integrated isolation, while MAC15A8G provides greater surge tolerance at the cost of increased gate drive demand-making BCR5FM-14LJ#BH0 optimal for space-constrained, safety-certified 5 A AC control where low gate drive and built-in 2000 V isolation are mandatory.

Availability

BCR5FM-14LJ#BH0 is available at Aetrix Electronics and suitable for motor control, heater regulation, and solid-state relay applications requiring stable component supply, industrial temperature resilience, and certified isolation performance.

Supply support for BCR5FM-14LJ#BH0 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.

BCR5FM-14LJ#BH0 belongs to Renesas' insulated triac product line, engineered specifically for safe, compact, and thermally efficient AC power switching in industrial control equipment.

FAQ

What is the maximum allowable junction temperature for BCR5FM-14LJ#BH0?

The absolute maximum junction temperature for BCR5FM-14LJ#BH0 is +150 °C, as specified in the Maximum Ratings table. Operation beyond this limit risks irreversible degradation of the silicon die and passivation layer. Derating curves on page 4 of the datasheet define allowable RMS current versus case temperature to ensure Tj remains within specification under real-world thermal conditions.

Does BCR5FM-14LJ#BH0 require a heatsink in all operating conditions?

Yes - BCR5FM-14LJ#BH0 requires a heatsink whenever conducting its rated 5 A RMS current. With R_th(j–c) = 4.9 °C/W and a maximum ΔT of 125 °C (150 °C Tj – 25 °C ambient), even minimal thermal resistance demands active thermal management. The datasheet specifies Tc = 113 °C for full-rated conduction, confirming mandatory heatsink use with thermal interface material.

Is BCR5FM-14LJ#BH0 compatible with zero-crossing trigger circuits?

Yes - BCR5FM-14LJ#BH0 supports zero-crossing operation due to guaranteed gate trigger parameters in Quadrant III (I_{RGT III} ≤30 mA, V_{RG T III} ≤1.5 V), which is the preferred mode for low-EMI, low-dV/dt switching near AC voltage zero crossings. Its 1 V/µs dv/dt rating at 150 °C ensures immunity to false triggering during zero-cross transitions.

What is the isolation voltage rating of BCR5FM-14LJ#BH0 and how is it tested?

BCR5FM-14LJ#BH0 has a rated isolation voltage (V_iso) of 2000 V AC, tested for 1 minute at 25 °C between all main terminals (T1, T2, G) and the metal case. This test validates reinforced insulation per IEC 60747-6 and enables direct mounting to grounded heatsinks without additional insulation hardware - provided the heatsink remains electrically floating as advised in the datasheet safety note.

Can BCR5FM-14LJ#BH0 replace BCR5FM-14LJ#BB0 in existing designs?

No - BCR5FM-14LJ#BB0 uses the non-insulated TO-220FP package (PRSS0003AG-A), whereas BCR5FM-14LJ#BH0 uses the insulated TO-220FPA package (PRSS0003AP-A). Although both share identical electrical specs, the #BH0 variant introduces 2000 V isolation and requires different mechanical mounting (floating heatsink). PCB layout and safety certification must be revalidated for #BH0 substitution.