Nexperia USA Inc. BZX84-C30,215

Overview

BZX84-C30,215 from Nexperia is a ±5 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, rated for 30 V nominal breakdown voltage at 2 mA test current, 250 mW total power dissipation, and 150 °C maximum junction temperature - used for precision voltage reference and overvoltage protection in low-power analog signal conditioning circuits.

For engineers reviewing the BZX84-C30,215 datasheet, BZX84-C30,215 pinout, BZX84-C30,215 application, or BZX84-C30,215 equivalent, this page delivers verified Zener voltage, differential resistance, temperature coefficient, reverse leakage, and thermal resistance values directly tied to design-critical parameters for stable biasing and clamping functions.

Technical Context

This device operates as a two-terminal shunt voltage regulator, maintaining a stable 30 V reference across its cathode–anode terminals when reverse-biased above its Zener knee. Its 300 Ω typical differential resistance at I_Z = 2 mA ensures minimal output voltage variation under load shifts.

The temperature coefficient of +21 mV/K at I_Z = 2 mA indicates positive drift with rising junction temperature - a key factor when designing temperature-stable references in ambient-varying environments like industrial sensor front-ends.

Key Specifications

Pinout & Package

SOT23 (TO-236AB) plastic surface-mounted package with 3 leads; compact 2.9 mm × 1.3 mm footprint, 1.1 mm height, and standard reflow-compatible solder pads.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MMBZ5260BLT1G, BZX84-C30,215 offers 25 % higher continuous power headroom and tighter differential resistance for improved load regulation; versus BZX84-C30-TP, it shares identical specification compliance but differs in tape-and-reel packaging and traceability documentation per Nexperia's production lot control.

Availability

BZX84-C30,215 is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, microcontroller I/O protection, low-power analog power supply, and optocoupler bias network applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for BZX84-C30,215 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

Nexperia is a global semiconductor expert focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified and industrial-grade components.

The BZX84 series belongs to Nexperia's precision Zener diode product line, engineered for stable voltage reference and transient suppression in space-constrained, cost-sensitive industrial and consumer electronics.

FAQ

What is the guaranteed Zener voltage range for BZX84-C30,215 at 2 mA test current?

The guaranteed Zener voltage range is 28.0 V to 32.0 V at I_Z = 2 mA, reflecting the ±5 % tolerance band specified for the 'C' grade variant. This range is validated per IEC 60134 limiting values and confirmed in Table 9 of the Rev. 7 datasheet under BZX84-C30 characteristics.

Can BZX84-C30,215 be used in series with another Zener to achieve higher reference voltages?

Yes - BZX84-C30,215 can be cascaded in series with identical or complementary Zeners (e.g., BZX84-C15,215) to generate composite reference voltages such as 45 V or 60 V. Total power dissipation must remain within 250 mW per device, and thermal coupling should be minimized to avoid mutual temperature coefficient interaction.

How does the 300 Ω differential resistance affect regulation accuracy under varying load currents?

At a 1 mA load change, the output voltage shifts by up to 300 mV (ΔV = r_dif × ΔI), meaning regulation error grows linearly with load variation. For sub-0.1 % accuracy, load current must be stabilized within ±0.33 μA - confirming its suitability for high-impedance bias nodes rather than dynamic power rails.

Is BZX84-C30,215 qualified for automotive applications?

No - BZX84-C30,215 is not automotive-qualified. Per Section 13 of the Rev. 7 datasheet, this part falls under industrial qualification only. Automotive alternatives (e.g., BZX84-Q series) require separate part numbers and undergo AEC-Q101 stress testing; using this variant in automotive systems voids warranty and violates safety compliance requirements.