Diodes Incorporated ZHCS1006TC

Overview

ZHCS1006TC from Diodes Incorporated is a silicon high-current Schottky barrier diode in SOT23 package, designed for low-loss power rectification in portable DC-DC converters and battery path management. It delivers 900 mA continuous forward current, 600 mV typical forward voltage at 1000 mA, and 60 V reverse voltage rating, enabling efficient operation in mobile telecomms and PCMCIA/SCSI hot-swap circuits.

For engineers reviewing the ZHCS1006TC datasheet, ZHCS1006TC pinout, ZHCS1006TC application, or ZHCS1006TC equivalent, key selection criteria include its 12 ns reverse recovery time, 17 pF junction capacitance at 25 V, thermal resistance (R_th = 100–300 °C/W), 125 °C max junction temperature, and pulsed peak current capability up to 12 A.

Technical Context

This Schottky diode operates without minority-carrier storage, delivering ultrafast switching (t_rr = 12 ns) and minimal reverse recovery loss. Its metal-semiconductor junction enables low V_F across 50–1500 mA (245–740 mV), with IR ≤ 100 µA at 45 V reverse bias.

Thermal performance is defined by case-to-ambient R_th values of 100–300 °C/W depending on PCB layout, and it sustains 1600 mA average forward current under 50% duty cycle. Junction temperature must not exceed 125 °C during operation.

Key Specifications

Pinout & Package

Package: SOT23 - surface-mount plastic package with 3 terminals, footprint compatible with JEDEC TO-236AB standard; thermal pad not present; intended for reflow soldering on FR-4 or ceramic substrates.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Schottky rectifier applications.

Compared with MBR0560T1G and SS36-E3/57T, ZHCS1006TC uniquely balances 900 mA continuous rating, SOT23 footprint, and 12 ns switching in a single device-making it optimal for space-constrained, high-frequency DC-DC stages where thermal mass is limited.

Availability

ZHCS1006TC is available at Aetrix Electronics and suitable for mobile telecomms, PCMCIA interface design, and DC-DC converter output rectification requiring stable component supply across production lifecycles.

Supply support for ZHCS1006TC 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 centers across Asia and manufacturing in China, Taiwan, and the US.

ZHCS1006TC belongs to Diodes' "SuperBAT" Schottky diode family, engineered specifically for high-current, low-V_F battery path and portable power applications demanding minimal voltage drop and fast transient response.

FAQ

What is the maximum allowable junction temperature for ZHCS1006TC during continuous operation?

The absolute maximum junction temperature (T_j) is 125 °C. Operation above this value risks permanent degradation of the Schottky barrier. Derating curves show I_F must be reduced to 400 mA at 100 °C ambient on a 15 mm × 15 mm ceramic substrate to maintain T_j ≤ 125 °C.

Can ZHCS1006TC be used in place of a standard PN rectifier in a 5 V/1 A flyback secondary?

Yes, but only if reverse voltage stress remains below 60 V and switching frequency exceeds 200 kHz. Its 12 ns t_rr eliminates reverse recovery loss, unlike PN diodes, yet its 600 mV V_F yields ~15% lower conduction loss than a 1N5819 at 1 A - provided thermal design accommodates 500 mW P_tot.

Is Pin 3 electrically isolated or internally connected in ZHCS1006TC?

Pin 3 is not electrically isolated: it is internally bonded to the cathode (Pin 2) and serves as a mechanical anchor and thermal path. PCB layout must treat Pin 3 as cathode potential - no floating or separate grounding - to avoid short-circuit risk during assembly or operation.

Does ZHCS1006TC meet JEDEC moisture sensitivity level (MSL) requirements for lead-free reflow?

Yes, ZHCS1006TC is rated MSL 1 per J-STD-020, meaning it has unlimited floor life at ≤30 °C/60% RH and withstands standard Pb-free reflow profiles (peak 260 °C, 30 sec). No baking is required prior to assembly, simplifying SMT line integration.