Diodes Incorporated TBZ363C20V8-7-F

Overview

TBZ363C20V8-7-F from Diodes Incorporated is a triple bi-directional surface-mount Zener diode array with nominal Zener voltages of 5.5 V, 6.4 V, and 20.8 V, configured in a common-cathode arrangement within a single SOT-363 package. It delivers 200 mW total power dissipation, 58 Ω maximum Zener impedance at 5 mA, and operates across –65 °C to +150 °C for transient voltage suppression in low-power signal lines.

For engineers reviewing the TBZ363C20V8-7-F datasheet, TBZ363C20V8-7-F pinout, TBZ363C20V8-7-F application, or TBZ363C20V8-7-F equivalent, key selection criteria include its 20.8 V nominal Zener voltage (±5%), 0.1 μA maximum reverse leakage at 14 V, 12.4–16.0 mV/°C temperature coefficient, and SOT-363 footprint compatibility with space-constrained PCB layouts.

Technical Context

This device integrates three monolithic Zener junctions in a single SOT-363 package with shared cathode terminals, enabling simultaneous clamping of three independent signal paths. Each diode supports bidirectional transient suppression via symmetrical avalanche breakdown characteristics above and below ground reference.

Electrical behavior is defined at 25 °C ambient with short-pulse Zener voltage measurement (IZT = 5 mA), 1 kHz impedance test frequency, and thermal derating per FR4 board layout (RθJA = 625 °C/W). The 20.8 V unit exhibits 19.76–21.84 V tolerance range and 0.1–14 μA reverse current at VR = 14 V.

Key Specifications

Pinout & Package

SOT-363 (SC-70-6) plastic surface-mount package with 6-pin configuration, 0.65 mm lead pitch, and UL 94V-0 flammability rating. Moisture sensitivity level 1 per J-STD-020D.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DMN3020LFD-7 and BZX384-C20,115, TBZ363C20V8-7-F uniquely delivers three independently addressable Zener paths in one SOT-363 footprint-reducing component count by 67%, minimizing interconnect inductance, and ensuring matched thermal response across protected lines.

Availability

TBZ363C20V8-7-F is available at Aetrix Electronics and suitable for USB data line protection, automotive sensor interfaces, industrial I/O modules, and medical patient monitoring ports requiring stable component supply and long-term manufacturability.

Supply support for TBZ363C20V8-7-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 protection, power management, and signal integrity solutions for industrial, computing, and automotive markets.

TBZ363C20V8-7-F belongs to Diodes' Zener diode array product line, engineered specifically for compact, multi-line transient suppression in space-constrained and thermally demanding applications.

FAQ

What is the maximum peak pulse power this device can handle?

TBZ363C20V8-7-F is rated for 200 mW steady-state power dissipation. Its peak pulse capability depends on waveform duration and duty cycle; per Figure 1 in DS30185, it supports up to 1.2 W for 10 ms pulses at 25 °C ambient with proper PCB copper area. Derating is required above 25 °C using the 625 °C/W thermal resistance curve.

Can this part replace a single 20 V Zener diode in a circuit?

Yes, but only one anode (Pin 1, 3, or 5) and the common cathode (Pins 2 and 6) should be used; the remaining anodes must be left unconnected. Using multiple anodes simultaneously requires matching voltage thresholds-TBZ363C20V8-7-F contains only one 20.8 V Zener (Pin 5), while Pins 1 and 3 correspond to 5.5 V and 6.4 V units per the marking code KV7.

Is the SOT-363 package compatible with standard reflow profiles?

Yes-TBZ363C20V8-7-F meets J-STD-020D Level 1 moisture sensitivity and is qualified for lead-free reflow. Peak temperature must not exceed 260 °C for ≤10 seconds, with ramp-up rate ≤3 °C/s. Diodes' recommended pad layout (AP02001.pdf) ensures optimal thermal transfer and solder joint reliability.

Does the "-7-F" suffix indicate tape-and-reel packaging?

Yes-the "-7-F" suffix denotes 3000-unit tape-and-reel packaging in SOT-363 format, per Diodes' ordering information table. "-7" specifies the tape-and-reel option, and "-F" confirms lead-free/RoHS-compliant finish. This packaging supports automated pick-and-place assembly without manual handling.