Taiwan Semiconductor Corporation BZD17C62PH

Overview

BZD17C62PH from Taiwan Semiconductor is a single-die, AEC-Q101-qualified silicon Zener diode in Sub SMA package, with nominal zener voltage 62 V (min 58 V, max 66 V), 0.8 W power dissipation at 25°C, 10 mA test current, and 1.0 μA reverse leakage at 47 V. It serves as a precision voltage reference and overvoltage protection device in automotive power rails and industrial sensor interfaces.

For engineers reviewing the BZD17C62PH datasheet, BZD17C62PH pinout, BZD17C62PH application, or BZD17C62PH equivalent, key selection criteria include its 62 V zener tolerance (±6.5%), low 25 Ω dynamic resistance at 10 mA, 0.08 %/°C temperature coefficient, 175 °C maximum junction temperature, and Sub SMA surface-mount compatibility with J-STD-002 solderability.

Technical Context

This Zener diode operates in reverse breakdown mode to clamp or regulate voltage with stable performance across -55 °C to +175 °C ambient range. Its differential resistance of 25 Ω at I_ZT = 10 mA ensures predictable voltage deviation under load variation, while the 0.08 %/°C temperature coefficient minimizes drift in thermally demanding environments.

The device supports non-repetitive surge pulses up to 300 W (100 μs square wave) and exhibits 1.2 V forward voltage at 0.2 A, enabling bidirectional transient suppression when used with series components. Its Sub SMA package delivers 30 °C/W junction-to-lead thermal resistance on standard 5 mm × 5 mm copper pad.

Key Specifications

Pinout & Package

Sub SMA package: Surface-mount, low-profile (max height 1.3 mm), cathode indicated by band, matte tin-plated leads, moisture sensitivity level 1 (J-STD-020), weight ≈ 0.019 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STZ62-1TR and BZX84-C62LT1G, the BZD17C62PH uniquely combines AEC-Q101 qualification, 0.8 W continuous power in Sub SMA, and 175 °C junction rating-making it the only option qualified for under-hood automotive use with tight thermal constraints.

Availability

BZD17C62PH is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor reference, and PLC input protection requiring stable component supply, full traceability, and long-term lifecycle support.

Supply support for BZD17C62PH 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

Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, analog ICs, and protection components for automotive and industrial markets.

The BZD17C62PH belongs to TSC's AEC-Q101-qualified Zener diode family designed specifically for high-reliability voltage regulation and transient suppression in harsh-environment automotive and industrial control systems.

FAQ

What is the zener voltage tolerance of BZD17C62PH?

The BZD17C62PH has a specified zener voltage range of 58 V to 66 V at 10 mA test current, corresponding to ±6.5% tolerance around the nominal 62 V rating. This tolerance is verified per the manufacturer's electrical specifications table and applies under standard test conditions (T_A = 25°C). The BZD17C62PH maintains this specification across its qualified operating temperature range.

Is BZD17C62PH suitable for automotive applications?

Yes, the BZD17C62PH is AEC-Q101 qualified and rated for junction temperatures up to +175 °C, making it suitable for under-hood automotive applications including engine control units, body control modules, and ADAS power supplies. Its Sub SMA package meets J-STD-020 moisture sensitivity level 1, eliminating bake requirements prior to reflow soldering in automotive manufacturing lines.

What is the maximum surge power rating for BZD17C62PH?

The BZD17C62PH supports a non-repetitive peak pulse power dissipation of 300 W for a 100 μs square pulse at T_J = 25°C, as defined in the Absolute Maximum Ratings table. This rating enables effective transient voltage suppression in load-dump and inductive-switching scenarios. The BZD17C62PH must be applied within its safe operating area, considering thermal derating above 25°C ambient.

Does BZD17C62PH have halogen-free and RoHS-compliant construction?

Yes, the BZD17C62PH uses halogen-free molding compound per IEC 61249-2-21 and is fully RoHS compliant. These material attributes are explicitly stated in the FEATURES section of the official datasheet and confirmed in the Mechanical Data and Ordering Information pages. The BZD17C62PH meets global environmental compliance requirements for automotive and industrial end equipment.

What is the thermal resistance from junction to ambient for BZD17C62PH?

The junction-to-ambient thermal resistance (R_θJA) of the BZD17C62PH is 180 °C/W when mounted on a 5 mm × 5 mm copper pad, as specified in the Thermal Performance section. This value assumes standard JEDEC test conditions and guides thermal design for continuous 0.8 W operation. For improved thermal performance, designers may increase copper area or add thermal vias-though R_θJL remains fixed at 30 °C/W regardless of layout.