VDZT2R22B Equivalent & Substitute Parts Reference

Part Overview

VDZT2R22B is a Zener diode from Rohm Semiconductor in the Diodes, Zener category. It features a nominal Zener voltage of 22 V, 100 mW maximum power dissipation, ±2% voltage tolerance, and is designed for surface mount applications in a VMD2 (SOD-723) package. The product status is listed as Obsolete. Due to its end-of-life status, identification of alternative models is required to maintain supply chain continuity and fulfill existing designs.

Substiute Parts

VDZT2R22B

Rohm SemiconductorIn Stock: 21406VDZT2R22B Datasheet

Current PartRFQ

CDZVT2R22B

Rohm SemiconductorIn Stock: 5312CDZVT2R22B Datasheet

SimilarRFQ

MMSZ4680T1G

onsemiIn Stock: 32241MMSZ4680T1G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute part selection is determined strictly by matching key electrical and mechanical parameters: Zener voltage (Vz), power dissipation (Pmax), voltage tolerance, maximum impedance (Zzt), reverse leakage current, operating temperature, RoHS/REACH compliance, MSL, mounting type, and package/case. Only products meeting these specifications are included as suitable equivalents or substitutes for VDZT2R22B.

Parameter Comparison

Engineering Selection Recommendations

Component selection must observe RoHS3 compliance, REACH status, ECCN, and MSL parameters. Both CDZVT2R22B and MMSZ4680T1G maintain full compliance based on provided data. CDZVT2R22B reflects equivalent Zener voltage, similar tolerance, and power rating within a surface-mount format. MMSZ4680T1G presents an active status but with a differing Zener voltage, tolerance, and package. Selection should be driven by technical matching to electrical and mechanical parameters and supported compliance documentation.

Frequently Asked Questions (FAQ)

Q: Which key parameters must match when selecting a Zener diode substitute?
A: Electrical characteristics including Zener voltage (Vz), power dissipation (Pmax), tolerance, maximum impedance (Zzt), reverse leakage current, and operating temperature range must align with the original part. Mechanical properties, RoHS/REACH compliance, MSL, and package/case format are also critical.

Q: Does the package or supplier device package affect compatibility?
A: Yes. The mounting type and physical package (such as SOD-723, SOD-923, or SOD-123) directly impact mechanical compatibility and PCB footprint.

Q: Are the listed substitutes RoHS and REACH compliant?
A: All substitute models, including VDZT2R22B, CDZVT2R22B, and MMSZ4680T1G, are specified as ROHS3 Compliant and REACH Unaffected.

Q: How does product status influence substitute selection for VDZT2R22B?
A: VDZT2R22B is Obsolete; therefore, substitutes with Active product status and matching parameters are prioritized for continued supply and manufacturing consistency.

Q: Is voltage tolerance a significant factor in substitution?
A: Yes. Variations in voltage tolerance affect circuit behavior and must be considered in any substitution decision. Only devices with similar or tighter tolerance should be considered for electrical compatibility.