Equivalent & Substitute Parts for CDZT2R7.5B Zener Diode

Part Overview

The CDZT2R7.5B is a Zener diode with a nominal Zener voltage of 7.5 V, rated for 100 mW power dissipation, and packaged in a VMN2 (SOD-923) surface mount format. The product status is "Not For New Designs", indicating that it is necessary to identify alternative models for ongoing or new applications requiring a 7.5 V Zener diode in this package and electrical specification.

Substiute Parts

CDZT2R7.5B
Rohm SemiconductorIn Stock: 35105CDZT2R7.5B Datasheet
CDZT2R7.5B
Current Part
CDZT2RA7.5B
Rohm SemiconductorIn Stock: 1032CDZT2RA7.5B Datasheet
CDZT2RA7.5B
Parametric Equivalent

Key Parameters

Manufacturer Part Number Voltage - Zener (Nom) (Vz) Tolerance Power - Max Impedance (Max) (Zzt) Current - Reverse Leakage @ Vr Operating Temperature Mounting Type Package / Case Supplier Device Package RoHS Status MSL REACH Status
CDZT2R7.5B 7.5 V ±2% 100 mW 30 Ohms 500 nA @ 4 V -55°C ~ 150°C Surface Mount 2-SMD, Flat Lead VMN2 (SOD-923) ROHS3 Compliant 1 (Unlimited) REACH Unaffected

Substitute Part Grouping Explanation

Substitutes for the CDZT2R7.5B Zener diode are identified strictly based on electrical and mechanical parameters provided. The following criteria are used for direct substitution within the "Diodes, Zener" category:

  • Zener Voltage (7.5 V nominal)
  • Voltage Tolerance (±2%)
  • Maximum Power Dissipation (100 mW)
  • Maximum Zener Impedance (30 Ohms)
  • Maximum Reverse Leakage Current at specified test voltage (500 nA @ 4 V)
  • Operating Temperature Range (-55°C ~ 150°C)
  • Mounting Type (Surface Mount)
  • Package / Case (2-SMD, Flat Lead; VMN2/SOD-923)
  • RoHS and REACH compliance
  • Moisture Sensitivity Level (1, Unlimited)

Only parts matching all listed parameters are considered for substitution.

Parameter Comparison

Manufacturer Part Number Voltage - Zener (Nom) (Vz) Tolerance Power - Max Impedance (Max) (Zzt) Current - Reverse Leakage @ Vr Operating Temperature Mounting Type Package / Case Supplier Device Package RoHS Status MSL REACH Status
CDZT2R7.5B 7.5 V ±2% 100 mW 30 Ohms 500 nA @ 4 V -55°C ~ 150°C Surface Mount 2-SMD, Flat Lead VMN2 (SOD-923) ROHS3 Compliant 1 (Unlimited) REACH Unaffected
CDZT2RA7.5B 7.5 V ±2% 100 mW 30 Ohms 500 nA @ 4 V -55°C ~ 150°C Surface Mount 2-SMD, Flat Lead VMN2 (SOD-923) ROHS3 Compliant 1 (Unlimited) REACH Unaffected

Engineering Selection Recommendations

Substitution of CDZT2R7.5B with CDZT2RA7.5B is supported due to full alignment of electrical parameters, mechanical fit, and environmental compliance. CDZT2RA7.5B holds an "Active" product status, while CDZT2R7.5B is designated "Not For New Designs". Both parts are ROHS3 compliant, have an MSL rating of 1 (Unlimited), and are REACH unaffected. Selection between these two Zener diodes is determined by product status and regulatory compliance metrics provided.

Frequently Asked Questions (FAQ)

Q1: What parameters are critical for substituting CDZT2R7.5B in a design?
A1: The key parameters for substitution are Zener voltage, tolerance, power dissipation, impedance, reverse leakage current, operating temperature, mounting type, package/case, RoHS status, MSL, and REACH status.

Q2: Can CDZT2RA7.5B be used as a direct drop-in replacement for CDZT2R7.5B?
A2: Yes. CDZT2RA7.5B matches all specified electrical and mechanical parameters and is suitable for direct substitution within the same category.

Q3: Does the package differ between the original and substitute part?
A3: No. Both parts use the VMN2 (SOD-923) surface mount package and have a 2-SMD, Flat Lead configuration.

Q4: Are there any regulatory concerns when selecting between these parts?
A4: Both parts are ROHS3 compliant, have MSL 1 (Unlimited), and are REACH unaffected. There are no differences in regulatory compliance based on provided data.

Q5: Why should a design be migrated away from CDZT2R7.5B?
A5: CDZT2R7.5B is listed as "Not For New Designs", indicating it should not be chosen for ongoing or future projects. Substitution ensures continuity in design and manufacturing with parts that have active status.

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