Diodes Incorporated TBZ363C5V5-7-F

Overview

TBZ363C5V5-7-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 7.0 V (this variant specifies 5.5 V), 200 mW total power dissipation, 625 °C/W thermal resistance, and SOT-363 package. It serves as a compact transient voltage suppression solution in low-power I/O protection circuits for microcontroller interfaces and sensor signal lines.

For engineers reviewing the TBZ363C5V5-7-F datasheet, TBZ363C5V5-7-F pinout, TBZ363C5V5-7-F application, or TBZ363C5V5-7-F equivalent, key selection criteria include verified Zener voltage tolerance (±5%), low leakage current (1.0 µA @ 1.0 V), temperature coefficient (-5.5 to -2.2 mV/°C), and compatibility with lead-free reflow profiles per J-STD-020D Level 1 moisture sensitivity.

Technical Context

This device integrates three independent, bi-directional Zener diodes in a single SOT-363 package, enabling simultaneous bidirectional clamping on three signal lines without external biasing. Each diode exhibits tightly controlled Zener voltage (5.22–5.78 V at 5 mA), low dynamic impedance (80 Ω at 5 mA), and specified reverse leakage (1.0 µA max at 1.0 V).

The thermal design is constrained by a junction-to-ambient resistance of 625 °C/W on FR4 PCBs using the recommended pad layout, requiring derating above 25°C ambient per Figure 1. Its green molding compound meets UL 94V-0 flammability rating and halogen-free requirements per Diodes Inc.'s policy effective Date Code UO (2007 Week 40).

Key Specifications

Pinout & Package

SOT-363 package: 6-pin, dual-row surface-mount outline with 0.65 mm pitch; dimensions per DS30185 Rev. 15-2 Page 3 (A=0.10–0.30 mm, B=1.15–1.35 mm, C=2.00–2.20 mm, D=0.65 mm nominal, F=0.40–0.45 mm, H=1.80–2.20 mm, K=0.90–1.00 mm, L=0.25–0.40 mm, M=0.10–0.22 mm, α=0°–8°).

Key Features

Applications

Equivalent & Alternatives

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

Compared with DMN3020LSD-13 and PESD5V0S1BA,115, TBZ363C5V5-7-F uniquely delivers three matched, low-impedance Zener clamps in one RoHS-compliant SOT-363 package-enabling compact, cost-effective, and thermally predictable protection where channel matching and footprint minimization are critical.

Availability

TBZ363C5V5-7-F is available at Aetrix Electronics and suitable for USB 2.0 interface protection, industrial sensor signal conditioning, and automotive body control module I/O requiring stable component supply with guaranteed lead-free compliance and moisture-safe handling.

Supply support for TBZ363C5V5-7-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, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.

TBZ363C5V5-7-F belongs to Diodes' Zener diode array product line, engineered specifically for space-constrained, multi-line transient suppression in consumer, industrial, and automotive electronics where reliability, RoHS compliance, and thermal predictability are essential.

FAQ

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

TBZ363C5V5-7-F is rated for 200 mW steady-state power dissipation; it does not specify peak pulse power (e.g., 8/20 µs waveform). For transient suppression, its clamping performance depends on Zener impedance (80 Ω) and thermal mass. Derating curves in DS30185 show linear reduction to zero at 150°C ambient, but no standardized peak pulse rating is provided in the datasheet.

Can this part replace a single 5.5 V Zener diode in a unidirectional circuit?

No - TBZ363C5V5-7-F contains three bi-directional Zener pairs (anode-cathode per channel), not three unidirectional diodes. Using only Pins 1 and 2 provides bidirectional clamping (±5.5 V), not unidirectional regulation. For unidirectional Zener reference use, a discrete 1N4733A or BZX55C5V6 is appropriate.

Is the SOT-363 package compatible with standard automated pick-and-place equipment?

Yes - the SOT-363 package has standardized dimensions (2.20 × 1.35 × 0.95 mm) and terminal geometry per JEDEC MO-178. Its matte tin finish and Level 1 moisture sensitivity ensure compatibility with industry-standard reflow profiles and placement accuracy down to ±0.05 mm, as confirmed in Diodes Inc.'s AP02007 packaging guide.

Does the temperature coefficient affect clamping voltage stability in automotive under-hood environments?

Yes - with a TC of −5.5 to −2.2 mV/°C, the Zener voltage decreases by up to 1.1 V over a 200°C range (−65°C to +135°C). In under-hood applications, this drift must be accounted for in system-level clamping margin; the datasheet confirms operation up to +150°C, but design validation is required at extremes.