Nexperia USA Inc. BZV49-C62,115

Overview

BZV49-C62,115 from Nexperia is a medium-power Zener voltage regulator diode in SOT89 package, designed for precision DC voltage reference and regulation at nominal 62 V with ±5% tolerance, 2 mA test current, 80 Ω typical differential resistance, and −0.3 mV/K temperature coefficient. It delivers stable regulation in power supply feedback loops and overvoltage protection circuits.

For engineers reviewing the BZV49-C62,115 datasheet, BZV49-C62,115 pinout, BZV49-C62,115 application, or BZV49-C62,115 equivalent, key selection criteria include its 62 V nominal Zener voltage, 1 W total power dissipation, SOT89 thermal performance (R_th(j-tp) = 15 K/W), non-repetitive peak reverse power capability of 40 W, and low leakage (<0.05 μA at 43.4 V).

Technical Context

This Zener diode operates in reverse breakdown mode with tightly controlled V_Z = 58.0–66.0 V at I_Ztest = 2 mA, exhibiting low dynamic impedance (rdif ≤ 215 Ω) and minimal temperature drift (SZ = −0.3 mV/K typ). Its thermal design relies on the SOT89 tie-point pad for efficient heat transfer to PCB copper.

The device complies with IEC 60134 absolute maximum ratings: P_tot = 1 W at T_amb = 25 °C on ceramic substrate (2.5 cm²), non-repetitive I_ZSM = 43.4 A for 100 μs surge, and junction temperature limit of 150 °C.

Key Specifications

Pinout & Package

SOT89 plastic surface-mounted package with exposed collector pad (Pin 3) for enhanced thermal conduction; 3-lead outline per JEDEC TO-243 / SC-62 standard.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MMBZ5262B,115 and BZX84-C62,115, the BZV49-C62,115 provides 2.9× higher continuous power (1 W vs. 0.35/0.3 W), 20× better thermal resistance (15 K/W vs. ~300 K/W), and integrated tie-point pad-making it the sole option for sustained 62 V regulation in industrial power stages.

Availability

BZV49-C62,115 is available at Aetrix Electronics and suitable for industrial power supply regulation, automotive ECU reference voltage generation, and test equipment voltage calibration requiring stable component supply and long-lifecycle support.

Supply support for BZV49-C62,115 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 leader in discrete, logic, and PowerMOS semiconductors, serving automotive, industrial, computing, and consumer markets with high-reliability, high-volume components.

The BZV49 series belongs to Nexperia's voltage regulator diode product line, engineered for precision DC voltage reference and robust overvoltage protection in space-constrained, thermally demanding applications.

FAQ

What is the maximum continuous reverse current the BZV49-C62,115 can handle at 25 °C?

The device supports a maximum continuous reverse current of 16 mA at 62 V, derived from its 1 W total power dissipation rating (P_tot/V_Z = 1 W / 62 V ≈ 16 mA). This value assumes full thermal derating per the datasheet's R_th(j-a) = 125 K/W curve and requires adequate PCB copper area on Pin 3 for heat transfer.

Can the BZV49-C62,115 be used in place of a 62 V Zener in a TO-92 through-hole design?

No-it is a surface-mount SOT89 device with different thermal and mechanical interfaces. Direct replacement requires PCB redesign to accommodate the 4.6 mm × 2.6 mm footprint, tie-point pad soldering, and revised thermal layout. Electrical behavior is equivalent, but mechanical fit and thermal performance are not interchangeable.

How does the temperature coefficient of −0.3 mV/K affect regulation accuracy over −40 to +125 °C?

Over this 165 K range, the Zener voltage shifts by approximately −49.5 mV (−0.3 mV/K × 165 K), resulting in a final V_Z of ~61.95 V at +125 °C. Combined with initial ±5% tolerance (±3.1 V), total regulation uncertainty remains within ±3.15 V-sufficient for most industrial feedback applications.

Is the cathode (Pin 2) electrically isolated from the tie-point pad (Pin 3)?

Yes-Pin 2 (cathode) and Pin 3 (anode/tie-point) are electrically isolated. The tie-point pad is internally connected to Pin 1 (anode), forming a dual-anode configuration. This allows independent routing of cathode signal traces while maximizing thermal conduction from the anode junction to the PCB.