Renesas RKZ3.6B2KG#P1

Overview

RKZ3.6B2KG#P1 from Renesas Electronics is a silicon planar Zener diode designed for precision voltage stabilization and transient surge absorption in low-power signal and bias circuits. It delivers a nominal Zener voltage of 3.6 V (min 3.55 V, max 3.80 V) at 5 mA, with dynamic resistance of 130 Ω, 10 μA reverse leakage at 1.0 V, and 200 mW power dissipation on PCB - commonly used in voltage reference rails for analog sensors and microcontroller reset circuits.

For engineers reviewing the RKZ3.6B2KG#P1 datasheet, RKZ3.6B2KG#P1 pinout, RKZ3.6B2KG#P1 application, or RKZ3.6B2KG#P1 equivalent, key selection criteria include its ultra-small URP (SC-76A) package, halogen-free construction, ESD robustness (±30 kV per IEC 61000-4-2), and tight 3.6 V regulation tolerance suitable for space-constrained industrial and consumer electronics.

Technical Context

This Zener diode operates in reverse-biased breakdown mode to maintain stable DC voltage under varying load and temperature conditions. Its planar junction structure ensures consistent breakdown characteristics and low temperature coefficient near zero crossing (~0.02 %/°C at 3.6 V), as confirmed by Figure 2 in the datasheet.

The device is optimized for surface-mount applications requiring compact footprint and high-density layout. Its URP package (1.25 mm × 0.80 mm × 0.45 mm) supports automated assembly and provides thermal performance validated up to 150°C junction temperature, with derated power dissipation above 25°C ambient per Figure 3.

Key Specifications

Pinout & Package

RKZ3.6B2KG#P1 uses the URP (Ultra-small Resin Package), also known as SC-76A, a 2-terminal surface-mount package with cathode marked by a dot or bar. The package measures 1.25 mm (L) × 0.80 mm (W) × 0.45 mm (H) and weighs 0.004 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MM3Z3V6T1G and BZX384-B3V6, RKZ3.6B2KG#P1 offers the smallest footprint (URP vs. SOD-323), halogen-free compliance out-of-box, and tighter production lot control for industrial biasing - making it optimal for miniaturized, environmentally regulated designs where board space and regulatory alignment are critical.

Availability

RKZ3.6B2KG#P1 is available at Aetrix Electronics and suitable for industrial sensor biasing, microcontroller reset reference, and USB port ESD protection requiring stable component supply, full traceability, and long-term lifecycle support.

Supply support for RKZ3.6B2KG#P1 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

Renesas Electronics is a global semiconductor leader delivering microcontrollers, analog, power, and timing solutions for industrial, automotive, and enterprise applications.

RKZ3.6B2KG#P1 belongs to the RKZ-KG Series of silicon planar Zener diodes engineered specifically for compact, high-reliability voltage stabilization and surge suppression in space-constrained consumer and industrial electronics.

FAQ

What is the Zener voltage tolerance of RKZ3.6B2KG#P1?

The RKZ3.6B2KG#P1 has a guaranteed Zener voltage range of 3.55 V to 3.80 V at test current I_Z = 5 mA, representing a ±3.9% tolerance around the nominal 3.6 V value. This specification is verified per the Electrical Characteristics table on page 2 of the REJ03G1512-0300 datasheet and applies under standard ambient conditions (T_a = 25°C).

Is RKZ3.6B2KG#P1 compatible with lead-free reflow soldering processes?

Yes, RKZ3.6B2KG#P1 is fully compatible with lead-free reflow soldering. As a halogen-free and Pb-free device (RKZ-KG P6 Series), it meets JEDEC J-STD-020 moisture sensitivity level (MSL) requirements and withstands peak reflow temperatures up to 260°C. Its URP package is qualified for standard Pb-free thermal profiles without delamination or parametric shift.

What is the maximum reverse current for RKZ3.6B2KG#P1 at 1.0 V?

The maximum reverse current (I_R) for RKZ3.6B2KG#P1 is 10 μA when reverse voltage (V_R) is applied at 1.0 V, as specified in the Electrical Characteristics table. This low leakage ensures minimal power loss in always-on bias networks and supports accurate voltage referencing in low-current applications such as sensor excitation.

Does RKZ3.6B2KG#P1 have automotive qualification?

No, RKZ3.6B2KG#P1 is not AEC-Q200 qualified. It is classified as a "Standard" quality grade device per Renesas documentation, intended for computers, office equipment, communications gear, and industrial electronics - not for automotive or safety-critical systems. For automotive use, consider alternatives like BZX384-B3V6 which carry AEC-Q200 certification.

How does the URP package of RKZ3.6B2KG#P1 compare in size to SOD-323?

The URP (SC-76A) package of RKZ3.6B2KG#P1 measures 1.25 mm × 0.80 mm × 0.45 mm, making it significantly smaller than the SOD-323 (1.7 mm × 1.3 mm × 0.9 mm). This 55% smaller footprint enables higher component density on PCBs, especially in wearable devices and miniaturized IoT endpoints where board area is at a premium.