Toshiba Semiconductor and Storage CRZ15(TE85L,Q,M)

Overview

CRZ15(TE85L,Q,M) from Toshiba is a silicon epitaxial Zener diode designed for voltage regulation and surge absorption in compact surface-mount applications. It delivers a nominal Zener voltage of 15.0 V (min 13.5 V, max 16.5 V) at 10 mA test current, with 30 Ω typical Zener impedance, 0.7 W power dissipation, and operates across −40 to +150 °C junction temperature range.

For engineers reviewing the CRZ15(TE85L,Q,M) datasheet, CRZ15(TE85L,Q,M) pinout, CRZ15(TE85L,Q,M) application, or CRZ15(TE85L,Q,M) equivalent, key selection criteria include Zener voltage tolerance, thermal stability (−40 to +150 °C), S-FLAT™ package compatibility, low reverse leakage (≤10 μA at 10 V), and suitability for space-constrained DC rail clamping and reference circuits.

Technical Context

The CRZ15(TE85L,Q,M) functions as a precision voltage reference and transient suppressor in low-power analog and digital supply rails. Its 15.0 V nominal Zener voltage is stabilized by epitaxial silicon construction and exhibits a temperature coefficient of +6.5 mV/°C (typical), enabling predictable drift behavior in temperature-varying environments.

Designed for surface-mount assembly, it uses Toshiba's proprietary S-FLAT™ package (JEITA package code 3-2A1S), with cathode-marked polarity and 0.013 g typical weight. Absolute maximum ratings specify 0.7 W continuous power dissipation and 120 °C recommended maximum junction temperature for high-reliability operation.

Key Specifications

Pinout & Package

Toshiba S-FLAT™ package (JEITA code 3-2A1S), surface-mount, 2-terminal device with cathode marking. Dimensions: 2.8 × 1.2 × 1.2 mm (L × W × H), weight 0.013 g (typ.). Land pattern per Toshiba reference drawing.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX84-C15 and MMBZ5245B, CRZ15(TE85L,Q,M) offers superior power handling (0.7 W vs. ≤0.4 W), lower Zener impedance (30 Ω vs. ≥40 Ω), and identical high-temperature capability-making it preferred for industrial surge suppression and long-life reference designs where reliability under thermal stress is critical.

Availability

CRZ15(TE85L,Q,M) is available at Aetrix Electronics and suitable for industrial power monitoring, automotive body control modules, consumer audio protection, and medical sensor conditioning requiring stable component supply and long-lifecycle support.

Supply support for CRZ15(TE85L,Q,M) 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

Toshiba Electronic Devices & Storage Corporation is a Japanese semiconductor manufacturer specializing in discrete devices, logic ICs, and power management solutions with global distribution and automotive-grade qualification capabilities.

The CRZ15(TE85L,Q,M) belongs to Toshiba's CRY62–CRZ39 Zener diode family, engineered for compact, high-reliability voltage regulation and surge absorption in space-constrained industrial and automotive electronics.

FAQ

What is the Zener voltage tolerance of CRZ15(TE85L,Q,M) at 25°C?

The CRZ15(TE85L,Q,M) has a Zener voltage range of 13.5 V (min) to 16.5 V (max) at 10 mA test current, corresponding to ±10% tolerance around the nominal 15.0 V value. This specification is guaranteed per Toshiba's Electrical Characteristics table and applies under standard test conditions (Ta = 25°C). The CRZ15(TE85L,Q,M) achieves this tolerance via epitaxial process control and post-trim screening.

Does CRZ15(TE85L,Q,M) support reflow soldering, and what is its maximum peak temperature?

Yes, CRZ15(TE85L,Q,M) is qualified for lead-free reflow soldering per JEDEC J-STD-020. Its S-FLAT™ package supports peak reflow temperatures up to 260°C for ≤30 seconds. Toshiba specifies no degradation in electrical parameters when processed within these limits, and the device's glass-epoxy board land pattern (6 mm × 6 mm) is optimized for thermal management during reflow.

What is the maximum allowable ambient temperature for continuous operation of CRZ15(TE85L,Q,M)?

The maximum allowable ambient temperature for CRZ15(TE85L,Q,M) depends on power dissipation and PCB thermal design. At full 0.7 W dissipation on a standard glass-epoxy board (6 mm × 6 mm land), Ta max is approximately 70°C. Derating is required above that point; Toshiba recommends limiting junction temperature to ≤120°C for high reliability, which constrains ambient temperature based on actual thermal resistance in the end application.

How does the temperature coefficient of CRZ15(TE85L,Q,M) affect its regulation accuracy over temperature?

The CRZ15(TE85L,Q,M) has a typical temperature coefficient of +6.5 mV/°C. Over a −40 to +125°C range, this results in ~1.07 V total drift (165°C × 6.5 mV/°C), shifting V_Z from ~14.0 V to ~15.1 V. This predictable positive drift enables compensation in precision circuits, and the CRZ15(TE85L,Q,M) remains within its specified 13.5–16.5 V band across the full operating range.

Is CRZ15(TE85L,Q,M) RoHS compliant and halogen-free?

Yes, CRZ15(TE85L,Q,M) complies with EU RoHS Directive 2011/65/EU and is halogen-free per Toshiba's environmental specifications. The device carries the "RoHS compliant" marking on packaging and meets JEDEC JS709C requirements for bromine and chlorine content (<900 ppm each). Full compliance documentation is available through Toshiba's official environmental portal.