onsemi SZBZX84C5V6LT3G

Overview

SZBZX84C5V6LT3G from onsemi is a 5.6 V ±5% Zener diode in SOT-23 package, rated for 250 mW power dissipation at 25°C, with 40 Ω dynamic impedance at 5 mA test current and −2.0 mV/°C temperature coefficient - used for precision voltage reference and overvoltage protection in portable power rails.

For engineers reviewing the SZBZX84C5V6LT3G datasheet, pinout, applications, or equivalent options, key selection criteria include Zener tolerance (±5%), low leakage (1 μA @ 3.5 V), ESD robustness (>16 kV HBM), and automotive-grade AEC-Q101 qualification.

Technical Context

This device operates as a two-terminal voltage regulator with reverse-biased junction behavior, delivering stable 5.6 V reference under controlled Zener breakdown. Its thermal coefficient of −2.0 mV/°C enables predictable drift compensation in temperature-sensitive bias networks.

The SOT-23 package supports automated placement and reflow soldering per JEDEC J-STD-020, with cathode marked by band and pin 1 = anode, pin 2 = no connection, pin 3 = cathode - enabling compact layout in space-constrained DC-DC feedback paths and I/O clamp circuits.

Key Specifications

Pinout & Package

SOT-23 (TO-236) surface-mount plastic package, 2.90 × 1.30 × 1.00 mm, void-free thermosetting case with corrosion-resistant finish; cathode indicated by polarity band; Pb-free and RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SZBZX84C5V6LT3G, BZX84C5V6LT3G offers identical regulation performance at lower cost but excludes automotive compliance evidence, while SZBZX84C5V6LT1G delivers full specification equivalence with reduced packaging volume - enabling flexibility in procurement scale and qualification scope.

Availability

SZBZX84C5V6LT3G is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial sensor nodes, and portable medical monitors requiring stable component supply with full AEC-Q101 traceability and long-term lifecycle support.

Supply support for SZBZX84C5V6LT3G 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

onsemi is a global semiconductor supplier specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and IoT markets.

SZBZX84C5V6LT3G belongs to the SZBZX84CxxxLTxG Zener regulator family, engineered for high-reliability voltage reference and transient suppression in safety-critical and space-constrained applications.

FAQ

What is the Zener voltage tolerance of SZBZX84C5V6LT3G?

The SZBZX84C5V6LT3G has a nominal Zener voltage of 5.6 V with a tolerance of ±5%, meaning its actual breakdown voltage falls between 5.2 V and 6.0 V when tested at 5 mA. This tolerance is confirmed in the Electrical Characteristics table on page 3 of the onsemi datasheet, under the BZX84CxxxLT1 series section. The SZBZX84C5V6LT3G maintains this spec across its full operating temperature range.

Is SZBZX84C5V6LT3G qualified for automotive applications?

Yes, SZBZX84C5V6LT3G is AEC-Q101 qualified and PPAP capable, as explicitly stated in the "Features" section of the onsemi datasheet. The "SZ" prefix denotes automotive and other applications requiring unique site and control change requirements. This qualification covers stress testing for temperature cycling, humidity, mechanical shock, and ESD - making SZBZX84C5V6LT3G suitable for engine control units, ADAS sensors, and body electronics.

What is the pin configuration of SZBZX84C5V6LT3G?

SZBZX84C5V6LT3G uses the SOT-23 package with pinout: Pin 1 = Anode, Pin 2 = No Connection (internally unconnected), Pin 3 = Cathode - as defined in the "Mechanical Characteristics" and "Electrical Characteristics" sections of the datasheet. The cathode is marked by a polarity band on the package body, and Pin 2 must remain unconnected in PCB layout to ensure proper Zener operation.

What is the maximum power dissipation for SZBZX84C5V6LT3G?

SZBZX84C5V6LT3G is rated for 250 mW total power dissipation on FR-5 board at TA = 25°C, with thermal derating of 2.0 mW/°C above that temperature. This value is specified in the "Maximum Ratings" table on page 2 of the datasheet. On alumina substrate, it supports up to 300 mW, but standard PCB designs should adhere to the 250 mW limit unless thermal modeling confirms adequate heatsinking.

Does SZBZX84C5V6LT3G have ESD protection?

Yes, SZBZX84C5V6LT3G features Class 3 ESD rating (>16 kV) per Human Body Model, as documented in the "Features" list on page 1 of the datasheet. This level of protection is built into the device structure and does not require external components. It ensures survivability during handling, assembly, and field operation in environments prone to static discharge - such as handheld diagnostic tools and factory-floor instrumentation.