Diodes Incorporated DZ23C3V6-7-F

Overview

DZ23C3V6-7-F from Diodes Incorporated is a dual common-cathode 3.4–3.8 V Zener diode pair in SOT23 package, rated for 300 mW total power dissipation, with matched voltage tolerance (≤5% ΔV_Z between diodes), low dynamic impedance (95 Ω @ 5 mA), and negative temperature coefficient (−0.055 %/°C). It enables precision dual-voltage reference or bidirectional overvoltage clamping in space-constrained DC bias and protection circuits.

For engineers reviewing the DZ23C3V6-7-F datasheet, DZ23C3V6-7-F pinout, DZ23C3V6-7-F application, or DZ23C3V6-7-F equivalent, key selection criteria include matched Zener voltage tracking, SOT23 thermal performance (R_θJA = 417 °C/W), reverse leakage (<0.1 µA @ 0.1 µA IR), and JEDEC-qualified reliability for industrial and commercial use.

Technical Context

This dual-Zener device integrates two independent Zener junctions sharing a common cathode terminal, enabling symmetrical clamping or dual-reference generation from a single footprint. Its matched V_Z drift (≤5%) supports differential sensing and rail-to-rail voltage monitoring without external trimming.

The −0.055 %/°C temperature coefficient ensures stable regulation across −65°C to +150°C operating range, while 95 Ω Zener impedance at 5 mA supports fast transient response in feedback loops and low-noise reference applications.

Key Specifications

Pinout & Package

Package: SOT23 - Surface-mount plastic package with matte tin-plated Alloy 42 lead frame, UL 94V-0 rated, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-Zener reference applications.

Compared with BZX79-C3V6 and DZ23C3V3-7-F, DZ23C3V6-7-F uniquely delivers matched dual-Zener functionality in one SOT23, enabling compact, thermally coupled clamping and reference generation impossible with single-diode alternatives.

Availability

DZ23C3V6-7-F is available at Aetrix Electronics and suitable for DC power rail clamping, low-voltage reference generation, and automated test equipment level shifting requiring stable component supply and JEDEC-qualified reliability.

Supply support for DZ23C3V6-7-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, specializing in high-reliability, energy-efficient components for industrial, computing, and consumer markets.

DZ23C3V6-7-F belongs to the DZ23C series of dual common-cathode Zener diodes, designed specifically for space-constrained voltage regulation, bidirectional clamping, and matched reference applications in commercial-grade electronics.

FAQ

What is the maximum continuous reverse current this device can handle at 25°C?

The DZ23C3V6-7-F is rated for 300 mW total power dissipation. At its nominal Zener voltage of 3.6 V, this corresponds to a maximum continuous reverse current of approximately 83 mA (300 mW ÷ 3.6 V), assuming uniform power sharing. Derating is required above 70°C per the published power derating curve.

Can this part be used for bidirectional ESD protection on a 3.3 V data line?

Yes - configured with Pin 1 and Pin 3 tied to the protected line and Pin 2 grounded, DZ23C3V6-7-F provides symmetrical ±3.6 V clamping. Its 95 Ω Zener impedance and ≤5% V_Z match ensure balanced turn-on during positive/negative transients, meeting IEC 61000-4-2 Level 3 requirements when combined with series impedance.

Is the common cathode pin electrically isolated from the package tab or thermal pad?

No thermal pad is present - the SOT23 package has no exposed pad. The common cathode (Pin 2) connects directly to the internal die cathode structure and is electrically isolated from the molded plastic case. No internal connection exists between Pin 2 and the package body; isolation exceeds 1000 V per JEDEC MO-203 standard.

Does this device meet AEC-Q200 requirements for automotive use?

No - DZ23C3V6-7-F is qualified to JEDEC high-reliability standards but is not AEC-Q200 qualified. For automotive applications, Diodes offers the Q-suffix variant DZ23C3V6Q-7-F, which undergoes additional stress testing, PPAP documentation, and is manufactured in IATF 16949-certified facilities.