STMicroelectronics X00602MN5BA4

Overview

X00602MN5BA4 from STMicroelectronics is a logic-level sensitive silicon-controlled rectifier (SCR) in TO-92 package, rated for 600 V repetitive peak off-state voltage (VDRM/VRRM), 0.8 A RMS on-state current (IT(RMS)), and 200 µA maximum gate trigger current (IGT). It serves as a low-power latching switch in crowbar protection, ground fault interrupters, and capacitive discharge ignition circuits where minimal gate drive is available.

For engineers reviewing the X00602MN5BA4 datasheet, X00602MN5BA4 pinout, X00602MN5BA4 application, or X00602MN5BA4 equivalent, key selection criteria include gate sensitivity (≤200 µA), thermal resistance (Rth(j-l) = 70 °C/W), forward voltage drop (VTM ≤ 1.35 V @ 1 A), dV/dt immunity (≥25 V/µs), and ECOPACK2 compliance for industrial safety-critical designs.

Technical Context

The X00602MN5BA4 is a unidirectional thyristor with gate-controlled turn-on and natural commutation via current zero-crossing. Its low IGT (200 µA max) enables direct drive from microcontroller GPIOs or optocouplers without external amplification, while its 600 V blocking capability supports AC mains-connected protection topologies.

It features a dynamic on-state resistance (Rd ≤ 245 mΩ at 125 °C) and threshold voltage (VTO ≤ 0.85 V at 125 °C), minimizing conduction losses in intermittent high-inrush applications such as oven ignitors and electronic ballasts. Junction temperature range is −40 to +125 °C, with thermal resistance junction-to-leads of 70 °C/W in TO-92.

Key Specifications

Pinout & Package

Supplied in TO-92 plastic package with straight or preformed leads (ECOPACK2 compliant); lead-free plating and halogen-free molding resin meet RoHS and UL94 V0 requirements.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar sensitive SCR applications.

Compared with STX00602MA, X00602MN5BA4 offers identical performance in a preformed-lead TO-92 variant optimized for automated insertion; versus S4006L, it trades higher surge capacity for smaller size and lower gate drive demand-ideal for space-constrained, ultra-low-power triggering scenarios.

Availability

X00602MN5BA4 is available at Aetrix Electronics and suitable for ground fault interrupters, overvoltage crowbar protection circuits, capacitive discharge ignitions, and oven ignitor control requiring stable component supply and long-term industrial lifecycle support.

Supply support for X00602MN5BA4 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, digital, and mixed-signal ICs for automotive, industrial, and consumer markets.

The X006 series belongs to ST's sensitive SCR product line, engineered specifically for low-gate-drive, high-reliability protection and ignition functions in AC-powered appliances and safety-critical equipment.

FAQ

What is the maximum junction temperature for reliable operation?

The X00602MN5BA4 has a specified operating junction temperature range of −40 to +125 °C. Continuous operation above 125 °C risks parametric shift and accelerated aging; derating curves in Figure 2 show IT(AV) drops to 0.5 A at TL = 83 °C, confirming thermal design must maintain lead temperature below this limit for rated RMS current.

Can this SCR be triggered directly from a 3.3 V microcontroller GPIO?

Yes-the device's maximum gate trigger current is 200 µA, and typical IGT is as low as 15 µA. A 3.3 V GPIO can drive the gate through a 10 kΩ resistor (delivering 330 µA), well above the required threshold, with no external transistor needed. Gate-cathode capacitance and dV/dt immunity further ensure noise-immune triggering.

Does X00602MN5BA4 require a snubber circuit in AC line applications?

A snubber is recommended when switching inductive loads or in high-dV/dt environments, though not mandatory for resistive or capacitive loads. With a minimum dV/dt rating of 25 V/µs, the device tolerates typical AC line transients; however, adding an RC snubber (e.g., 100 Ω + 100 pF) improves reliability in GFCI or crowbar circuits exposed to lightning surges or relay bounce.

How does the TO-92 preformed lead variant differ electrically from the straight-lead version?

There is no electrical difference-the X00602MN5BA4 (preformed leads) and X00602MA1AA2 (straight leads) share identical die, parameters, and thermal characteristics. The preformed leads (2AL2/5AL2 packing) are bent at 30°–50° for automatic insertion into plated-through holes, while straight leads (1AA2) suit manual or wave-solder processes; both use the same TO-92 outline and Rth(j-l) = 70 °C/W.