GDZT2R7.5 Zener Diode Equivalent & Substitute Parts

Part Overview

The GDZT2R7.5 is a 7.5V Zener diode manufactured by Rohm Semiconductor, rated for 100mW power dissipation in Cut Tape packaging. This component is classified as Obsolete, necessitating identification of functionally equivalent alternatives for ongoing production and maintenance applications. Substitute parts must maintain the nominal Zener voltage of 7.5V and support equivalent or superior power ratings while meeting RoHS3 compliance and MSL requirements.

Substiute Parts

GDZT2R7.5

Rohm SemiconductorIn Stock: 181466GDZT2R7.5 Datasheet

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SDZT15R7.5

Rohm SemiconductorIn Stock: 18552SDZT15R7.5 Datasheet

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TSZU52C7V5 RGG

Taiwan Semiconductor CorporationIn Stock: 21024TSZU52C7V5 RGG Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the GDZT2R7.5 are identified based on the following critical parameters:

Primary Matching Criteria:

• Voltage - Zener (Nom): 7.5 V (exact match required)
• Tolerance: ±5% (standard for Zener diodes in this category)
• Power - Max: ≥100 mW (equal or greater rating acceptable)
• RoHS Status: ROHS3 Compliant (mandatory)
• MSL: 1 (Unlimited) (compatible moisture sensitivity)

Acceptable Variations:

• Mounting Type: Surface Mount alternatives acceptable (SMD0603, 0603 metric packages)
• Packaging Format: Cut Tape, Digi-Reel, or Tape & Reel formats
• Manufacturer: Alternative qualified manufacturers permitted

The SDZT15R7.5 and TSZU52C7V5 RGG both satisfy these criteria with matching Zener voltage and equal or enhanced power ratings.

Parameter Comparison

Engineering Selection Recommendations

SDZT15R7.5 Selection Criteria:

• Identical Zener voltage (7.5V) and power rating (100mW) to GDZT2R7.5
• Rohm Semiconductor manufacturer continuity
• Surface Mount SMD0603 package requires PCB layout modification from original through-hole design
• ROHS3 compliant with MSL 1 rating
• Status: Not For New Designs (suitable for replacement in existing applications)

TSZU52C7V5 RGG Selection Criteria:

• Identical Zener voltage (7.5V) with enhanced power rating (150mW vs. 100mW)
• Taiwan Semiconductor Corporation alternative manufacturer
• Surface Mount 0603 package requires PCB layout modification
• ROHS3 compliant with MSL 1 rating
• Enhanced reverse leakage specification (100nA @ 5V) and impedance rating (7 Ohms max)
• Status: Not For New Designs (suitable for replacement in existing applications)

Both substitutes maintain full regulatory compliance (RoHS3, REACH Unaffected, EAR99 ECCN classification). Selection between SDZT15R7.5 and TSZU52C7V5 RGG depends on PCB assembly capability for surface mount components and thermal design margin requirements.

Frequently Asked Questions (FAQ)

Q: Can SDZT15R7.5 directly replace GDZT2R7.5 in existing through-hole designs?

A: No. SDZT15R7.5 is a surface mount component (SMD0603 package), while GDZT2R7.5 uses Cut Tape through-hole packaging. PCB layout and assembly process modifications are required.

Q: What is the primary advantage of TSZU52C7V5 RGG over SDZT15R7.5?

A: TSZU52C7V5 RGG provides 150mW power rating versus 100mW for SDZT15R7.5, offering 50% additional thermal margin. Both maintain identical 7.5V Zener voltage specification.

Q: Are all three parts RoHS3 compliant?

A: Yes. GDZT2R7.5, SDZT15R7.5, and TSZU52C7V5 RGG are all ROHS3 Compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: Why are SDZT15R7.5 and TSZU52C7V5 RGG marked "Not For New Designs"?

A: Product status indicates these components are in mature or declining production phases. They remain available for replacement and maintenance applications but are not recommended for new product development. GDZT2R7.5 is marked Obsolete, making substitution necessary for ongoing supply.

Q: What tolerance specification applies to Zener voltage for these substitutes?

A: Both SDZT15R7.5 and TSZU52C7V5 RGG specify ±5% Zener voltage tolerance, which is standard for this component category and ensures circuit compatibility.

Q: Can these parts be used interchangeably in the same circuit?

A: Electrical substitution is valid when Zener voltage (7.5V) and power rating requirements are met. However, package differences (through-hole vs. surface mount) require separate PCB designs. TSZU52C7V5 RGG's higher power rating (150mW) is compatible with 100mW circuit designs.