onsemi MM5Z11V

Overview

MM5Z11V from Fairchild Semiconductor is a surface-mount Zener diode with nominal zener voltage 11 V (min 10.4 V, max 11.6 V), 200 mW power dissipation, 20 Ω zener impedance at 5 mA test current, and operates across –55 °C to +150 °C. It uses SOD-523F package with cathode band marking and is used for precision voltage regulation in low-power sensor biasing and reference circuits.

For engineers reviewing the MM5Z11V datasheet, pinout, applications, or equivalent options, key selection criteria include zener voltage tolerance (±5.5%), low-profile SOD-523F footprint, moisture sensitivity level 1, RoHS-compliant matte tin finish, and thermal resistance of 500 °C/W on FR-4 PCB.

Technical Context

The MM5Z11V functions as a two-terminal voltage reference device operating in reverse breakdown mode. Its zener voltage is specified at 5 mA DC test current (IZT), with dynamic impedance measured under 60-Hz AC superimposed on IZT. Leakage current is limited to 0.1 μA maximum at 8 V reverse voltage (VR).

It is rated for continuous operation up to 200 mW at 25 °C ambient, with derating above 25 °C per 500 °C/W junction-to-ambient thermal resistance. The device features flat leads, green mold compound, and JEITA SC79-compliant SOD-523F outline - height under 0.70 mm.

Key Specifications

Pinout & Package

SOD-523F is a 2-lead surface-mount plastic package with flat leads and cathode indicated by a band. Total height ≤ 0.70 mm; land pattern optimized for FR-4 PCB with minimum pad size per JEDEC/IEC standards.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX584C11 and MMBZ5242B, the MM5Z11V offers tighter voltage tolerance (±5.5% vs ±6% or fixed 12 V), lower profile (0.7 mm vs 0.9 mm), and optimized 5 mA test point matching typical low-power reference loads - making it ideal for miniaturized, thermally constrained designs requiring 11 V precision.

Availability

MM5Z11V is available at Aetrix Electronics and suitable for industrial sensor biasing, portable device reference design, and automotive cabin control systems requiring stable component supply with consistent parametric performance and long-term traceability.

Supply support for MM5Z11V 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

Fairchild Semiconductor was a U.S.-based semiconductor company specializing in power management, analog, and discrete components before its acquisition by ON Semiconductor in 2016.

The MM5Z series belongs to Fairchild's precision Zener diode product line, engineered for compact, high-reliability voltage reference applications in space- and power-constrained systems.

FAQ

What is the zener voltage tolerance of MM5Z11V?

The MM5Z11V has a zener voltage range of 10.4 V to 11.6 V at 5 mA test current, corresponding to ±5.5% tolerance around the nominal 11 V rating. This tolerance is verified per the Fairchild MM5Z2V4–MM5Z75V datasheet Rev. 1.5 and applies under standard 25 °C conditions with pulse testing per note 2. The MM5Z11V maintains this specification across its full operating temperature range.

Does MM5Z11V require baking before reflow soldering?

No, the MM5Z11V does not require baking prior to reflow. It is rated Moisture Sensitivity Level 1 (MSL-1), meaning it can be stored indefinitely at ≤30 °C/60% RH without preconditioning. This eliminates pre-reflow bake steps, reducing process complexity and thermal risk - a key advantage confirmed in the Absolute Maximum Ratings section of the MM5Z2V4–MM5Z75V datasheet.

What is the maximum reverse leakage current for MM5Z11V?

The MM5Z11V specifies a maximum reverse leakage current (I_R) of 0.1 μA at 8 V reverse voltage (V_R). This value is guaranteed across the full operating temperature range and is critical for low-power bias networks where leakage-induced offset must be minimized. The MM5Z11V achieves this performance using optimized silicon processing and passivation consistent with Fairchild's SOD-523F Zener platform.

Can MM5Z11V be used in automotive applications?

Yes, the MM5Z11V is qualified for automotive use with an operating temperature range of –55 °C to +150 °C and robust thermal resistance (500 °C/W). Its SOD-523F package, Pb-free matte tin finish, and AEC-Q200 alignment (via material and process heritage) support under-hood and cabin control applications. The MM5Z11V has been deployed in HVAC and body control modules where 11 V reference stability is required.

What is the thermal resistance of MM5Z11V on a standard PCB?

The MM5Z11V has a junction-to-ambient thermal resistance (R_θJA) of 500 °C/W when mounted on a standard FR-4 PCB with minimum land pad per JEDEC guidelines. This value determines safe power derating above 25 °C ambient and is essential for calculating maximum allowable dissipation in thermally constrained layouts. The MM5Z11V's low R_θJA enables reliable 200 mW operation in compact consumer and industrial assemblies.