Diodes Incorporated BZX84C13S-7-F

Overview

BZX84C13S-7-F from Diodes Incorporated is a 13 V, 200 mW surface-mount Zener diode in SOT-363 package, specified at 5 mA test current with ±0.6 V tolerance (12.4–14.1 V), 30 Ω dynamic impedance at 5 mA, and <0.1 µA reverse leakage at 8 V. It provides precision voltage regulation in low-power biasing and reference circuits for analog sensors and power supply feedback loops.

For engineers reviewing the BZX84C13S-7-F datasheet, BZX84C13S-7-F pinout, BZX84C13S-7-F application, or BZX84C13S-7-F equivalent, key selection criteria include zener voltage accuracy at 5 mA, thermal resistance (625 °C/W), SOT-363 footprint compatibility, temperature coefficient (+7.0 to +11.0 mV/°C), and RoHS-compliant matte tin plating.

Technical Context

This dual-diode Zener operates in reverse breakdown mode with tightly controlled nominal voltage of 13 V and guaranteed min/max limits of 12.4 V and 14.1 V. Its 30 Ω zener impedance at 5 mA ensures stable regulation under moderate load variation, while the 170 Ω knee impedance at 1 mA supports low-current reference stability.

The device uses planar die construction in an ultra-small SOT-363 package with six terminals (two anodes, two cathodes, two NC), rated for -65 °C to +150 °C operation and 200 mW dissipation on FR4 PCB with recommended pad layout.

Key Specifications

Pinout & Package

SOT-363 is a 6-terminal surface-mount plastic package with dual Zener diode structure: two anodes (A1, A2), two cathodes (C1, C2), and two no-connect (NC) terminals. Pin assignment follows top-view marking orientation with polarity indicated by cathode band.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MMBZ5243BS-7-F and BZX84C13LT1G, BZX84C13S-7-F uniquely delivers dual-Zener functionality in SOT-363, enabling compact dual-reference or matched-pair biasing without sacrificing 200 mW rating or 30 Ω regulation stiffness.

Availability

BZX84C13S-7-F is available at Aetrix Electronics and suitable for industrial sensor biasing, USB overvoltage clamping, and low-power LDO feedback applications requiring stable component supply and full traceability.

Supply support for BZX84C13S-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.

This part belongs to the BZX84C series of surface-mount Zener diodes, designed specifically for space-constrained, low-power voltage regulation and reference applications in consumer, industrial, and computing equipment.

FAQ

What is the maximum reverse voltage before breakdown for BZX84C13S-7-F?

The BZX84C13S-7-F begins regulating at its nominal zener voltage of 13 V, with guaranteed breakdown occurring between 12.4 V and 14.1 V at 5 mA test current. Below 12.4 V, it exhibits <0.1 µA reverse leakage at 8 V, confirming non-conductive behavior in sub-threshold operation.

Can BZX84C13S-7-F be used in place of a single-Zener diode like BZX84C13LT1G?

Yes, but only one of its two Zener elements should be used - connect C1/A1 as the active pair and leave C2/A2 unconnected. The SOT-363 footprint differs from SOT-23, so PCB layout must be modified; electrical performance at 13 V and 30 Ω Z_ZT is functionally equivalent for single-element use.

Is the temperature coefficient of BZX84C13S-7-F positive or negative?

The temperature coefficient is positive: +7.0 to +11.0 mV/°C at 5 mA. This means the zener voltage increases with rising junction temperature, a characteristic typical of Zeners above ~5.6 V and confirmed in the DS30108 datasheet Table on page 2.

Does BZX84C13S-7-F require special handling for moisture sensitivity?

No - it is rated Moisture Sensitivity Level 1 per J-STD-020D, meaning it may be stored indefinitely at ≤30 °C/60% RH and processed directly in standard reflow without baking or dry-pack requirements.