Toshiba Semiconductor and Storage CRZ36(TE85L,Q,M)

Overview

CRZ36(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 36.0 V (min 32.4 V, max 39.6 V) at 9 mA test current, with 0.7 W average power dissipation, 30 Ω typical Zener impedance, and operates across −40 to +150 °C junction temperature range.

For engineers reviewing the CRZ36(TE85L,Q,M) datasheet, CRZ36(TE85L,Q,M) pinout, CRZ36(TE85L,Q,M) application, or CRZ36(TE85L,Q,M) equivalent, key selection criteria include its S-FLAT™ package footprint, tight V_Z tolerance (±10%), low temperature coefficient (typ. 0.046 mV/°C per V_Z), and suitability for overvoltage clamping in DC power rails and sensor interface protection circuits.

Technical Context

The CRZ36(TE85L,Q,M) functions as a precision shunt regulator with stable reverse breakdown behavior under controlled current conditions. Its Zener impedance of ≤30 Ω at 9 mA ensures minimal output voltage variation under load transients, while its temperature coefficient of +46 mV/°C (typ.) supports predictable drift compensation in mid-to-high-voltage reference designs.

This device is optimized for single-ended DC voltage stabilization without external biasing circuitry. It requires no series resistor for basic clamping but must be thermally managed per Toshiba's derating guidelines-maximum ambient temperature drops to ~85 °C at full 0.7 W dissipation on standard FR-4 PCBs with 6 mm × 6 mm copper land.

Key Specifications

Pinout & Package

CRZ36(TE85L,Q,M) uses Toshiba's S-FLAT™ surface-mount package (JEITA package code 3-2A1S), measuring 2.8 mm × 1.2 mm × 1.2 mm with cathode marked on top surface. The device has two terminals: anode and cathode - no internal connections or multi-pin configuration.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CRZ36(TE85L,Q,M), the 1N4738A offers higher power handling but requires PCB real estate and thermal vias incompatible with ultra-compact designs, while BZX84-C36 trades power margin and ruggedness for smaller size and tighter V_Z tolerance-making CRZ36(TE85L,Q,M) optimal for mid-power SMT surge suppression where reliability and thermal stability are prioritized.

Availability

CRZ36(TE85L,Q,M) is available at Aetrix Electronics and suitable for industrial sensor conditioning, DC power rail clamping, and automotive body control module designs requiring stable component supply and long-lifecycle support.

Supply support for CRZ36(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, power electronics, and logic ICs, with decades of expertise in silicon Zener and TVS technologies.

The CRZ36(TE85L,Q,M) belongs to Toshiba's CRY62–CRZ39 family of surface-mount Zener diodes engineered specifically for compact, high-reliability voltage regulation and surge absorption in automotive, industrial, and consumer power systems.

FAQ

What is the Zener voltage tolerance of CRZ36(TE85L,Q,M)?

The CRZ36(TE85L,Q,M) has a Zener voltage range of 32.4 V to 39.6 V at 9 mA test current, corresponding to ±10% tolerance around the nominal 36.0 V rating. This tolerance is specified in Toshiba's official electrical characteristics table and applies across the full operating temperature range of −40 to +150 °C. The device does not require external trimming or calibration to meet this specification.

Is CRZ36(TE85L,Q,M) RoHS compliant?

Yes, CRZ36(TE85L,Q,M) complies with the EU RoHS Directive (2011/65/EU) as confirmed by Toshiba's environmental compliance documentation. Lead content is restricted to ≤1000 ppm, and all six RoHS substances are within allowable limits. Customers should verify latest status via Toshiba's official product page or material declaration reports, as compliance may vary by production lot and regional regulatory updates.

What is the maximum reverse current for CRZ36(TE85L,Q,M) at 28.8 V?

At a reverse voltage of 28.8 V (80% of nominal V_Z), the CRZ36(TE85L,Q,M) exhibits a maximum reverse current I_R of 10 μA, as specified in Toshiba's Electrical Characteristics table. This low leakage ensures minimal power loss in standby mode and preserves accuracy in high-impedance reference applications where current draw must remain below 100 nA–1 μA thresholds.

Can CRZ36(TE85L,Q,M) be used in place of CRZ33 or CRZ39?

CRZ36(TE85L,Q,M) is not a direct substitute for CRZ33 or CRZ39 due to distinct Zener voltage ranges: CRZ33 is 29.7–36.3 V, CRZ39 is 35.1–42.9 V. While overlap exists near 36 V, the guaranteed minimum/maximum values differ-CRZ36(TE85L,Q,M) ensures 32.4–39.6 V, making it the only part in the series with guaranteed coverage of exactly 36.0 V nominal. Substitution requires validation of system-level voltage margin and thermal design.

What is the thermal resistance (R_θJA) of CRZ36(TE85L,Q,M) on a standard PCB?

Toshiba does not specify a fixed R_θJA value for CRZ36(TE85L,Q,M) because it depends entirely on PCB layout. With a 6 mm × 6 mm copper land on 1.6 mm FR-4, transient thermal impedance drops to ~100 °C/W at 100 ms and ~30 °C/W at steady state per Toshiba's r_th(j-a)–t curve. For reliable 0.7 W operation, design must ensure junction temperature stays ≤120 °C using this land pattern and adequate airflow or heatsinking.