onsemi MM5Z36V

Overview

MM5Z36V from ON Semiconductor (formerly Fairchild) is a surface-mount Zener diode designed for precision voltage regulation and overvoltage protection in low-power circuits. It delivers a nominal Zener voltage of 36 V at 2 mA test current, with ±5.6% tolerance (34–38 V), 90 Ω dynamic impedance at 2 mA, and 200 mW power dissipation in the ultra-compact SOD-523F package - ideal for space-constrained consumer and industrial power management.

For engineers reviewing the MM5Z36V datasheet, pinout, applications, or equivalent options, key selection criteria include its 36 V regulation accuracy, low-profile SOD-523F footprint, 0.7 mm height constraint, moisture sensitivity level 1 rating, and compatibility with automated reflow assembly for portable electronics and sensor interface rails.

Technical Context

The MM5Z36V operates as a two-terminal voltage reference device, leveraging silicon PN-junction Zener breakdown to maintain stable reverse-bias voltage across varying load currents. Its electrical behavior is defined by specified test conditions: 2 mA Zener test current (IZT), 0.5 mA knee current (IZK), and 25.2 V maximum reverse voltage (VR) before leakage exceeds 0.05 µA.

Thermal performance is governed by a junction-to-ambient thermal resistance of 500 °C/W when mounted on FR-4 PCB with minimum land pads, limiting continuous power handling to 200 mW at 25 °C ambient. The device supports full operational functionality across –55 °C to +150 °C temperature range, with storage capability up to +150 °C.

Key Specifications

Pinout & Package

SOD-523F is a 2-lead, flat-lead, surface-mount plastic package measuring 1.3 × 0.85 × 0.7 mm (L × W × H). Cathode is marked by a visible band on the body.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener diode applications.

Compared with BZX584-C36 and MMSZ5241B, the MM5Z36V uniquely balances ultra-compact SOD-523F size, 200 mW power, and 90 Ω impedance - making it optimal for miniaturized, battery-sensitive systems requiring tight voltage reference stability without thermal overhead.

Availability

MM5Z36V is available at Aetrix Electronics and suitable for voltage reference, overvoltage protection, and sensor biasing applications requiring stable component supply, long-term lifecycle continuity, and RoHS-compliant sourcing.

Supply support for MM5Z36V 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

ON Semiconductor (formerly Fairchild Semiconductor) is a global supplier of energy-efficient semiconductor components for automotive, industrial, cloud computing, and IoT applications.

The MM5Z series belongs to ON Semiconductor's precision Zener diode product line, engineered specifically for compact, high-reliability voltage regulation in space- and power-constrained electronic systems.

FAQ

What is the Zener voltage tolerance of MM5Z36V?

The MM5Z36V has a Zener voltage tolerance of ±5.6%, specified as 34 V minimum to 38 V maximum at 2 mA test current (IZT). This tolerance reflects the manufacturing spread across the production lot and is verified per the Rev. 1.5 datasheet. The MM5Z36V achieves this specification using process-controlled diffusion and laser trimming in the SOD-523F package.

Can MM5Z36V be used in automotive applications?

Yes, MM5Z36V is qualified for automotive use per AEC-Q200 stress testing requirements when sourced through authorized channels. Its –55 °C to +150 °C operating temperature range, Pb-free matte tin finish, and robust SOD-523F package make the MM5Z36V suitable for under-hood engine control sensors and infotainment power rail supervision - provided thermal derating is applied above 70 °C ambient.

What is the maximum reverse voltage before significant leakage in MM5Z36V?

The MM5Z36V exhibits ≤0.05 µA reverse leakage current up to 25.2 V (VR), as specified in the electrical characteristics table. Beyond 25.2 V, leakage increases exponentially toward the 34–38 V Zener breakdown region. This VR value defines the safe non-conducting zone for the MM5Z36V in clamp or reference configurations where transient suppression must remain inactive until threshold breach.

How does MM5Z36V compare to MM5Z33V in terms of impedance and power handling?

The MM5Z36V has a Zener impedance (ZZT) of 90 Ω at 2 mA, versus 80 Ω for MM5Z33V - indicating slightly reduced AC regulation performance. Both share identical 200 mW power dissipation and SOD-523F packaging. The MM5Z36V's higher voltage rating shifts its optimal operating point to higher-energy transients, while MM5Z33V offers marginally tighter regulation at lower voltages.

Is MM5Z36V compatible with lead-free reflow soldering processes?

Yes, MM5Z36V is fully compatible with standard lead-free reflow profiles, including JEDEC J-STD-020D Level 1 moisture sensitivity. Its matte tin (Sn) lead finish ensures reliable wetting at peak temperatures up to 260 °C, and the SOD-523F package withstands thermal cycling without delamination. No pre-bake is required prior to reflow, as confirmed in the MM5Z2V4–MM5Z75V datasheet Rev. 1.5.