BZT52B75-TP Equivalent & Substitute Parts

Part Overview

The BZT52B75-TP is a Zener diode manufactured by Micro Commercial Co, rated at 75 V nominal with 410 mW maximum power dissipation. The device is packaged in SOD-123 surface mount configuration and is compliant with RoHS3 and REACH regulations. This part is currently in active production status with 853 pieces available in inventory.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter range. Alternative sources provide design flexibility, supply chain redundancy, and inventory availability optimization for applications requiring 75 V Zener diodes in SOD-123 packaging.

Substiute Parts

BZT52B75-TP

Micro Commercial CoIn Stock: 880BZT52B75-TP Datasheet

Current PartRFQ

BZT52B75-E3-08

Vishay General Semiconductor - Diodes DivisionIn Stock: 15806BZT52B75-E3-08 Datasheet

SimilarRFQ

CMHZ5267B TR PBFREE

Central Semiconductor CorpIn Stock: 30287CMHZ5267B TR PBFREE Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BZT52B75-TP is determined by the following critical parameters:

Primary Matching Criteria:

• Zener voltage: 75 V nominal
• Package type: SOD-123 surface mount
• Mounting configuration: Surface mount compatible

Secondary Compatibility Parameters:

• Power dissipation rating: Equal to or greater than 410 mW
• Voltage tolerance: ±2% or tighter
• Impedance (maximum): 250 Ohms or lower
• Reverse leakage current: 100 nA @ 56 V or lower
• Forward voltage: 900 mV @ 10 mA or lower
• Operating temperature range: Must encompass or exceed -55°C to 175°C

Regulatory Compliance:

• RoHS3 compliant
• REACH unaffected status

Parts meeting all primary criteria and maintaining secondary parameter specifications within acceptable limits are classified as direct substitutes. Parts exceeding specified parameters in non-critical dimensions are classified as functional equivalents with noted deviations.

Parameter Comparison

Engineering Selection Recommendations

BZT52B75-E3-08 (Vishay General Semiconductor - Diodes Division)

This part is a direct substitute for the BZT52B75-TP. Electrical specifications match exactly: 75 V nominal voltage, ±2% tolerance, 410 mW power rating, and 250 Ohms maximum impedance. Both devices are RoHS3 compliant and REACH unaffected. The primary design consideration is the operating temperature range: BZT52B75-E3-08 operates from -55°C to 150°C, which is 25°C lower than the main part at the upper limit. Applications requiring operation above 150°C must use the BZT52B75-TP. For applications within -55°C to 150°C, BZT52B75-E3-08 provides equivalent performance with significantly higher inventory availability (15769 pieces).

CMHZ5267B TR PBFREE (Central Semiconductor Corp)

This part is a functional equivalent with specified deviations. The 75 V nominal voltage and SOD-123 package match the main part. Key differences include: voltage tolerance of ±5% (versus ±2%), maximum power dissipation of 500 mW (versus 410 mW), and impedance of 270 Ohms (versus 250 Ohms). The operating temperature range is -65°C to 150°C. This part is suitable for applications where the ±5% tolerance is acceptable and where operation above 150°C is not required. The higher power rating provides additional thermal margin. RoHS3 and REACH compliance are maintained. Inventory availability is highest among all options (30244 pieces).

Both substitute parts maintain regulatory compliance and surface mount compatibility. Selection between substitutes depends on tolerance requirements, temperature range specifications, and power dissipation margins for the specific application circuit.

Frequently Asked Questions (FAQ)

Q: Can BZT52B75-E3-08 replace BZT52B75-TP in all applications?

A: BZT52B75-E3-08 is a direct electrical substitute within the temperature range of -55°C to 150°C. Applications requiring operation above 150°C must use BZT52B75-TP, which is rated to 175°C. All other electrical parameters are identical.

Q: What is the significance of the ±5% tolerance on CMHZ5267B TR PBFREE?

A: The CMHZ5267B TR PBFREE has a voltage tolerance of ±5%, compared to ±2% for the main part. This means the actual Zener voltage can vary within a wider range. Applications requiring precise voltage regulation within ±2% must use BZT52B75-TP or BZT52B75-E3-08. Applications tolerating ±5% variation can use CMHZ5267B TR PBFREE.

Q: Are all three parts in the same package?

A: Yes. All three parts use SOD-123 surface mount packaging. They are mechanically and electrically compatible for PCB placement and soldering processes.

Q: Why does CMHZ5267B TR PBFREE have a higher power rating?

A: CMHZ5267B TR PBFREE is rated at 500 mW maximum power dissipation, compared to 410 mW for the main part. This provides additional thermal headroom in applications with higher current demands. The higher rating does not affect compatibility; it simply indicates the part can dissipate more power without exceeding junction temperature limits.

Q: What does "PBFREE" in the part number indicate?

A: PBFREE indicates the part is lead-free, consistent with RoHS3 compliance. All three parts in this comparison are RoHS3 compliant.

Q: Which substitute has the best inventory availability?

A: CMHZ5267B TR PBFREE has the highest inventory with 30244 pieces available, followed by BZT52B75-E3-08 with 15769 pieces. The main part BZT52B75-TP has 853 pieces in stock.

Q: Can I use CMHZ5267B TR PBFREE if my circuit operates above 150°C?

A: No. CMHZ5267B TR PBFREE is rated to 150°C maximum. For applications requiring operation above 150°C, use BZT52B75-TP, which is rated to 175°C.

Q: Are there any compliance differences between the three parts?

A: No. All three parts are RoHS3 compliant and REACH unaffected. Regulatory compliance is equivalent across all options.