Nexperia USA Inc. BZT52H-C5V1,115

Overview

BZT52H-C5V1,115 from Nexperia is a ±5 % tolerance Zener diode in SOD123F package, rated for 5.1 V nominal breakdown voltage at I_Z = 5 mA, with 480 Ω max differential resistance, 2 μA max reverse current at V_R = 4.0 V, and 830 mW total power dissipation at T_amb ≤ 25 °C - used for precision voltage reference and overvoltage protection in low-power analog supply rails.

For engineers reviewing the BZT52H-C5V1,115 datasheet, BZT52H-C5V1,115 pinout, BZT52H-C5V1,115 application, or BZT52H-C5V1,115 equivalent, this part supports stable 5.1 V regulation in space-constrained PCB layouts, requires thermal derating above 25 °C ambient, and serves as a cost-optimized alternative to tighter-tolerance Zeners where ±5 % stability suffices.

Technical Context

This Zener operates in reverse-bias breakdown mode with a temperature coefficient of −2.7 to +1.2 mV/K at I_Z = 5 mA, enabling predictable drift compensation in mid-voltage references. Its SOD123F package delivers 150 K/W junction-to-solder-point thermal resistance when mounted on FR4 with 1 cm² cathode pad.

The device exhibits 0.9 V forward voltage at I_F = 10 mA and withstands non-repetitive peak reverse currents up to 6.0 A (t_p = 100 μs), supporting transient suppression in conjunction with series impedance.

Key Specifications

Pinout & Package

SOD123F is a 2-terminal surface-mount plastic package with cathode marked by a bar on the body. Cathode (K) and anode (A) terminals are arranged linearly with 2.5–2.7 mm pitch; footprint requires 2.8 mm × 1.2 mm solder land per terminal and 1.1 mm paste deposit width.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZT52H-C5V1,115, the BZT52B-C5V1,115 improves regulation accuracy and dynamic impedance at higher cost, while MMBZ5221BS-7-F trades thermal performance for miniaturization - neither offers drop-in compatibility without layout or thermal redesign.

Availability

BZT52H-C5V1,115 is available at Aetrix Electronics and suitable for voltage reference, overvoltage protection, sensor biasing, and ADC stabilization requiring stable component supply and consistent ±5 % Zener tolerance.

Supply support for BZT52H-C5V1,115 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 manufacturer headquartered in Nijmegen, Netherlands, specializing in high-volume logic, discrete, and MOSFET solutions with emphasis on reliability and energy efficiency.

The BZT52H series belongs to Nexperia's general-purpose Zener diode product line, engineered for cost-sensitive, high-yield applications in consumer, industrial, and computing power management where robustness and standardized SMD packaging are prioritized.

FAQ

What is the maximum continuous reverse current the BZT52H-C5V1,115 can sustain at 25 °C ambient?

The device does not specify a maximum continuous reverse current rating; instead, it is limited by total power dissipation. At 25 °C ambient, P_tot = 830 mW and V_Z ≈ 5.1 V, so maximum sustainable Zener current is ~163 mA (830 mW ÷ 5.1 V). Operation above this requires ambient derating per the thermal resistance curve.

Can the BZT52H-C5V1,115 be used in automotive applications?

No - the BZT52H series is explicitly non-automotive qualified per Nexperia's revision history (Rev. 7, Jan 2023). It lacks AEC-Q200 qualification, automotive-grade screening, and guaranteed operation across −40 °C to +125 °C. Automotive designs must use Nexperia's -Q qualified alternatives such as PZTA44-Q or BZX84-Q series.

How does the temperature coefficient affect regulation accuracy over −25 °C to +85 °C?

At I_Z = 5 mA, the BZT52H-C5V1,115 exhibits a temperature coefficient of −2.7 to +1.2 mV/K. Over a 110 K span, this introduces up to ±149 mV (110 × 1.36 mV/K avg) drift - approximately ±2.9 % of 5.1 V - which must be accounted for in precision reference designs using calibration or compensation.

Is the SOD123F package compatible with standard reflow profiles for lead-free soldering?

Yes - Nexperia specifies reflow soldering as the only recommended method for SOD123F. The package supports JEDEC J-STD-020D-compliant lead-free profiles with peak temperatures up to 260 °C, provided the thermal pad layout follows Figure 12 (2.8 mm × 1.2 mm lands, 1.1 mm paste width) to ensure mechanical integrity and thermal transfer.