Diodes Incorporated BZX84C3V0Q-13-F

Overview

BZX84C3V0Q-13-F from Diodes Incorporated is a 3.0 V, 5 mA nominal Zener voltage regulator diode in SOT23 package, rated for 350 mW power dissipation at ambient temperature, with 95 Ω maximum Zener impedance at test current and -3.5 mV/°C temperature coefficient - used for precision voltage reference and overvoltage clamping in low-power sensor signal conditioning circuits.

For engineers reviewing the BZX84C3V0Q-13-F datasheet, BZX84C3V0Q-13-F pinout, BZX84C3V0Q-13-F application, or BZX84C3V0Q-13-F equivalent, key selection criteria include Zener voltage tolerance (±0.2 V), low reverse leakage (10 µA @ 1.0 V), automotive-grade AEC-Q101 qualification, and SOT23-compatible reflow profile suitability for high-volume PCB assembly.

Technical Context

This Zener diode operates in reverse breakdown mode to maintain stable 3.0 V across its terminals within ±6.7% tolerance under 5 mA test current, with thermal resistance of 357 °C/W when leads are held at ambient temperature. Its planar die construction ensures consistent voltage regulation and low dynamic impedance.

The device exhibits a negative temperature coefficient of -3.5 mV/°C, meaning output voltage decreases linearly with rising junction temperature - critical for biasing stability in temperature-sensitive analog front-ends and reference dividers where drift compensation is required.

Key Specifications

Pinout & Package

Package: SOT23 - three-terminal plastic-molded case with matte tin-plated alloy 42 leadframe; moisture sensitivity level 1 per J-STD-020; weight ≈ 0.008 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MMBZ5223BS-7-F, BZX84C3V0Q-13-F offers tighter Zener impedance and automotive qualification at lower power; versus BZX84-C3V0,315, it adds AEC-Q101 compliance without sacrificing voltage accuracy or footprint - making it optimal for safety-conscious embedded systems requiring long-term reliability.

Availability

BZX84C3V0Q-13-F is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, automotive body control modules, and portable medical device biasing requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for BZX84C3V0Q-13-F 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.

This part belongs to the BZX84C series of automotive-qualified Zener diodes, designed specifically for voltage regulation and overvoltage protection in space-constrained, high-reliability applications such as automotive electronics and industrial control systems.

FAQ

What is the maximum Zener test current for BZX84C3V0Q-13-F?

The nominal Zener test current is 5.0 mA, specified in the Electrical Characteristics table. At this current, the device delivers its 3.0 V nominal Zener voltage with ±0.2 V tolerance. Operation beyond 5 mA is permissible only within the 350 mW power limit and derated thermal envelope - e.g., up to ~117 mA at 3.0 V is theoretically possible but thermally unsustainable without forced cooling.

Is BZX84C3V0Q-13-F suitable for bidirectional ESD protection?

No - this is a unidirectional Zener diode optimized for reverse-bias voltage regulation, not bidirectional transient suppression. It lacks symmetric breakdown characteristics and has no specified ESD rating (e.g., IEC 61000-4-2). For ESD protection, Diodes Incorporated recommends dedicated TVS devices like D3V3M1U2UP-7 or AP7165-33W5-7.

How does the "Q" in BZX84C3V0Q-13-F affect packaging and reliability?

The "Q" denotes automotive qualification per AEC-Q101, including stress testing for temperature cycling, humidity bias, and high-temperature operating life. Packaging remains SOT23 with 10,000-piece tape-and-reel (13-F), identical to standard versions - but lot traceability, burn-in screening, and failure analysis protocols meet automotive PPAP requirements.

Can BZX84C3V0Q-13-F replace BZX84C3V3 in a 3.3 V LDO feedback network?

No - its 3.0 V nominal Zener voltage is 300 mV lower than the 3.3 V target, causing systematic output deviation. Even with tolerance overlap (BZX84C3V3: 3.1–3.5 V), the BZX84C3V0Q-13-F's 2.8–3.2 V range cannot achieve 3.3 V regulation. Substitution would require redesigning the feedback divider ratio or selecting a higher-voltage Zener like BZX84C3V6Q-13-F.