Taiwan Semiconductor Corporation M3Z51VC RRG

Overview

M3Z51VC RRG from Taiwan Semiconductor is a surface-mount 51 V ±5% tolerance Zener diode in SOD-323F package, rated for 200 mW power dissipation and operating from –55°C to +150°C junction temperature, used for precision voltage reference and low-power stabilization in DC/DC converters and lighting circuits.

For engineers reviewing the M3Z51VC RRG datasheet, M3Z51VC RRG pinout, M3Z51VC RRG application, or M3Z51VC RRG equivalent, key selection criteria include zener voltage tolerance (±5%), dynamic impedance (125 Ω at 2.5 mA), leakage current (0.1 µA at 38 V), thermal limits (T_J = 150°C), and SOD-323F footprint compatibility with high-density PCB layouts.

Technical Context

This Zener diode operates in reverse breakdown mode to maintain stable voltage regulation under varying load and temperature conditions. Its 51 V nominal zener voltage (48.45–53.55 V range) is specified at 2.5 mA test current, with dynamic impedance of 125 Ω ensuring predictable regulation slope.

The device uses single-die construction in a moisture-insensitive SOD-323F package (MSL Level 1), with matte tin-plated terminals compliant with J-STD-002 solderability and JESD201 Class 1A whisker resistance, enabling reliable reflow assembly without baking.

Key Specifications

Pinout & Package

SOD-323F is a two-terminal surface-mount package with anode and cathode leads formed in a gull-wing configuration; polarity is marked by a visible cathode band on the body.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX384-B51,115 and MMBZ5253BS-7-F, the M3Z51VC RRG offers identical voltage specification with optimized SOD-323F packaging for automated assembly reliability and thermal robustness in space-constrained, high-reliability applications.

Availability

M3Z51VC RRG is available at Aetrix Electronics and suitable for low-voltage stabilizers, on-board DC/DC converters, and lighting applications requiring stable component supply, consistent parametric performance, and RoHS-compliant sourcing.

Supply support for M3Z51VC RRG 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

Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving industrial, computing, and consumer markets since 1979.

The M3Z series is part of TSC's standard Zener diode product line designed specifically for compact, high-reliability voltage reference and clamping functions in space-constrained power management subsystems.

FAQ

What is the zener voltage tolerance of M3Z51VC RRG?

The M3Z51VC RRG has a zener voltage tolerance of ±5%, meaning its breakdown voltage is guaranteed between 48.45 V and 53.55 V when tested at 2.5 mA. This tolerance is confirmed in the Electrical Specifications table of the official Taiwan Semiconductor datasheet (Version B2008). The M3Z51VC RRG achieves this accuracy through process-controlled doping and post-trim testing, making it suitable for applications demanding repeatable voltage references without external calibration.

What is the maximum power dissipation for M3Z51VC RRG?

The M3Z51VC RRG is rated for a maximum power dissipation of 200 mW at ambient temperature (T_A = 25°C), as specified in the Absolute Maximum Ratings table. Derating is required above 25°C per the Power Dissipation vs. Ambient Temperature curve (Fig.7), reaching zero dissipation at 150°C. This rating directly constrains usable current in shunt regulation: at 51 V, safe continuous current is ≤3.9 mA. The M3Z51VC RRG must be applied within this thermal envelope to avoid junction overheating and parametric shift.

Does M3Z51VC RRG comply with RoHS and halogen-free standards?

Yes, the M3Z51VC RRG is RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet. The device uses bromine- and chlorine-free molding compounds and lead-free matte tin plating on terminals. These compliance attributes are verified through material declarations and third-party testing, supporting use in EU CE-marked equipment and environmentally regulated industrial products. The M3Z51VC RRG documentation confirms full alignment with both directives without exemptions.

What is the package type and moisture sensitivity level of M3Z51VC RRG?

The M3Z51VC RRG is packaged in SOD-323F, a surface-mount case with dimensions 1.7 × 1.25 × 0.9 mm and gull-wing leads. Its moisture sensitivity level is J-STD-020 Level 1 - meaning it can be stored indefinitely at ≤30°C/60% RH without dry-pack or baking prior to reflow. This eliminates handling overhead in high-volume SMT lines. The M3Z51VC RRG's SOD-323F construction also meets UL 94 V-0 flammability and JESD201 Class 1A whisker resistance requirements.

What is the leakage current specification for M3Z51VC RRG?

The M3Z51VC RRG exhibits a maximum leakage current (I_R) of 0.1 µA at a reverse voltage (V_R) of 38 V, as defined in the Electrical Specifications table. This ultra-low leakage ensures minimal error in high-impedance voltage divider or bias networks, especially critical in battery-operated systems. The value is measured at T_A = 25°C and remains below 1 µA even at 100°C per Fig.6. This parameter is integral to the M3Z51VC RRG's suitability for precision reference applications where standby current must be tightly controlled.