TFZVTR20B

Single Zener Diodes Overview

The TFZVTR20B is a single Zener diode manufactured by ROHM Semiconductor, designed for surface-mount applications. It features a nominal Zener voltage of 20 V with a tolerance range of 18.63 V to 19.59 V. The device operates with a test current of 10 mA and dissipates up to 500 mW of power. It is housed in an SOD-323HE-2 package, measuring 2.5 mm by 1.4 mm with a height of 0.8 mm. The component supports a maximum operating temperature of +150°C and maintains a maximum reverse leakage current of 200 nA.

Single Zener Diodes Feature Summary

• High thermal stability with a maximum junction temperature rating of +150°C
• Compact surface-mount design suitable for space-constrained PCB layouts
• Low reverse leakage current ensuring minimal power loss in off-state conditions

Single Zener Diodes Applications

• Voltage regulation in low-power electronic circuits
• Over-voltage protection for sensitive semiconductor components
• Reference voltage generation in measurement systems

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required packaging formats such as tape and reel quantities. Confirm RoHS compliance status through official manufacturer documentation prior to integration into environmentally regulated assemblies. Cross-reference the part number alias TFZV20B to avoid procurement errors during sourcing.

Single Zener Diodes Selection Notes

Select this component when a precise 20 V reference is required within a compact SMD footprint. The 500 mW power dissipation capability distinguishes it from lower-power alternatives like the EDZVT series. Ensure the circuit design accommodates the 10 mA test current requirement for accurate voltage stabilization under load.

Single Zener Diodes Part Context

This device belongs to the TFZV series of small signal Zener diodes. It serves as a recommended replacement for the discontinued TFZ20B, maintaining similar electrical characteristics while offering improved packaging consistency. The TFZV series is optimized for high-volume manufacturing and automated assembly processes.

Single Zener Diodes Replacement Considerations

The TFZVTR20B is the direct recommended replacement for the obsolete TFZ20B. Both parts share identical pinouts and core electrical specifications, facilitating drop-in upgrades without requiring schematic modifications.