Overview
The Toshiba 02CZ2.0 Zener diode is a precision silicon epitaxial planar device designed for low-voltage constant voltage regulation and reference applications. This SMD component delivers stable, predictable output across industrial and consumer electronics applications, available in convenient tape packaging for high-volume assembly and integration.
Key Features
- Silicon epitaxial planar construction for stable performance
- SC-59 small-outline SMD package for compact PCB layouts
- Zener voltage range 1.85–2.15 V (nominal) at 5 mA
- Low dynamic impedance (100 Ω) ensures tight regulation
- Supplied on tape reel for automated pick-and-place assembly
- Automotive and industrial grade reliability
Technical Specifications
- Zener Voltage (VZ): 1.85–2.15 V @ IZ = 5 mA
- Dynamic Impedance (ZZ): 100 Ω @ IZ = 5 mA
- Maximum Power Dissipation: 200 mW
- Junction Temperature: 150 °C (max)
- Reverse Current (IR): 120 μA @ VR = 1.0 V
- Package Type: SC-59 (JEDEC TO-236MOD)
- Operating Temperature Range: −55 to +150 °C
- Weight: 0.012 g
- Delivery Format: Tape reel
Typical Applications
- Low-voltage reference circuits (battery, instrumentation)
- Constant voltage regulation in power supplies and linear regulators
- Circuit protection and overvoltage clipping (ESD, switching surge suppression)
- Precision voltage dividers and bias networks
- Consumer and industrial electronics
Compatibility & Replacements
Compatible With
- Standard SOC-59 / SC-59 footprints on PCBs
- Automated tape-and-reel assembly equipment
- Low-voltage regulation circuits (1.8–2.2 V nominal)
- General-purpose industrial and consumer electronics applications
Replaces / Drop-In Replacement For
- Similar SC-59 Zener diodes in the 2V class (e.g., other manufacturers’ 2.0V diodes with matching thermal and electrical ratings)
- Verify thermal and voltage tolerance specifications with application requirements before substitution
Works With
- Passive voltage regulation circuits and analog reference applications
- Standard PCB assembly processes (reflow, wave solder compatible with SC-59 package constraints)
- ESD and surge protection networks in mixed-signal and digital systems




