BZT52C11S-TP Equivalent & Substitute Parts

Part Overview

The BZT52C11S-TP is a Zener diode manufactured by Micro Commercial Co, rated at 11 V nominal with 200 mW power dissipation in a surface mount SOD-323 package. This component is classified as Active and RoHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to component availability, supply chain considerations, or design flexibility within specified parameter tolerances.

Substiute Parts

BZT52C11S-TP

Micro Commercial CoIn Stock: 3340BZT52C11S-TP Datasheet

Current PartRFQ

DDZ9698S-7

Diodes IncorporatedIn Stock: 5728DDZ9698S-7 Datasheet

DirectRFQ

MM3Z11VT1G

onsemiIn Stock: 65223MM3Z11VT1G Datasheet

DirectRFQ

MMSZ5241BS-7-F

Diodes IncorporatedIn Stock: 7456MMSZ5241BS-7-F Datasheet

DirectRFQ

BZT52C11SQ-7-F

Diodes IncorporatedIn Stock: 994BZT52C11SQ-7-F Datasheet

SimilarRFQ

CMDZ11L TR PBFREE

Central Semiconductor CorpIn Stock: 3365CMDZ11L TR PBFREE Datasheet

SimilarRFQ

CMDZ5241B TR PBFREE

Central Semiconductor CorpIn Stock: 6177CMDZ5241B TR PBFREE Datasheet

SimilarRFQ

MM3Z11VB

Fairchild SemiconductorIn Stock: 429834MM3Z11VB Datasheet

SimilarRFQ

MM3Z11VC

onsemiIn Stock: 6254MM3Z11VC Datasheet

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SZMM3Z11VT1G

onsemiIn Stock: 6846SZMM3Z11VT1G Datasheet

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UDZ11B-7

Diodes IncorporatedIn Stock: 5023UDZ11B-7 Datasheet

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BZT52C11S-7-F

Diodes IncorporatedIn Stock: 2604BZT52C11S-7-F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BZT52C11S-TP is determined by the following critical parameters:

Primary Substitution Criteria:

• Voltage - Zener (Nom): 11 V (exact match required)
• Tolerance: ±5% or tighter
• Power - Max: 200 mW or greater
• Package / Case: SC-76, SOD-323 or compatible surface mount package
• Operating Temperature: -65°C to 150°C minimum
• RoHS3 Compliance: Required
• Mounting Type: Surface Mount

Substitution Categories:

Direct Equivalents meet all primary criteria with identical or superior electrical specifications:

• DDZ9698S-7 (Diodes Incorporated): 11 V, 200 mW, ±5%, SOD-323
• MMSZ5241BS-7-F (Diodes Incorporated): 11 V, 200 mW, ±5%, SOD-323
• UDZ11B-7 (Diodes Incorporated): 11 V, 200 mW, ±2%, SOD-323

Enhanced Performance Substitutes exceed power rating while maintaining voltage and tolerance specifications:

• MM3Z11VT1G (onsemi): 11 V, 300 mW, ±5%, SOD-323
• SZMM3Z11VT1G (onsemi): 11 V, 300 mW, ±5%, SOD-323, AEC-Q101 qualified

Package Variant Substitutes maintain electrical specifications with alternative surface mount packages:

• MM3Z11VC (onsemi): 11 V, 200 mW, ±5%, SOD-323F
• MM3Z11VB (Fairchild Semiconductor): 11 V, 200 mW, ±2%, SOD-323F

Similar Performance Substitutes meet core voltage and power requirements with acceptable parameter variations:

• CMDZ11L TR PBFREE (Central Semiconductor Corp): 11 V, 250 mW, ±5%, SOD-323
• CMDZ5241B TR PBFREE (Central Semiconductor Corp): 11 V, 250 mW, ±5%, SOD-323
• BZT52C11SQ-7-F (Diodes Incorporated): 11 V, 200 mW, ±5.45%, SOD-323, AEC-Q101 qualified

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement with Identical Specifications:

DDZ9698S-7, MMSZ5241BS-7-F, and UDZ11B-7 are suitable direct replacements. All maintain 11 V nominal voltage, 200 mW power rating, and SOD-323 package compatibility. DDZ9698S-7 offers lower reverse leakage current (50 nA vs. 100 nA). UDZ11B-7 provides tighter voltage tolerance (±2% vs. ±5%). Selection depends on availability and specific leakage or tolerance requirements.

For Enhanced Power Dissipation:

MM3Z11VT1G and SZMM3Z11VT1G provide 300 mW power rating while maintaining 11 V voltage and ±5% tolerance. These are suitable when circuit design permits higher power handling. SZMM3Z11VT1G includes AEC-Q101 automotive qualification.

For Tighter Voltage Tolerance:

MM3Z11VB and UDZ11B-7 offer ±2% tolerance compared to the standard ±5%. MM3Z11VB is available in bulk packaging with high inventory. Both maintain 200 mW power rating and SOD-323 package compatibility.

For Automotive Applications:

BZT52C11SQ-7-F and SZMM3Z11VT1G carry AEC-Q101 qualification. BZT52C11SQ-7-F maintains 200 mW rating with ±5.45% tolerance. SZMM3Z11VT1G provides enhanced 300 mW rating with AEC-Q101 qualification.

For Package Variant Compatibility:

MM3Z11VC and MM3Z11VB use SOD-323F package variant. These are compatible with designs accepting SOD-323F footprints. Both maintain 11 V voltage and 200 mW power specifications.

Compliance Verification:

All recommended substitutes are RoHS3 compliant and REACH unaffected. Moisture Sensitivity Level (MSL) is 1 (Unlimited) for all parts except MM3Z11VB, which does not specify MSL rating.

Frequently Asked Questions (FAQ)

Q: Can DDZ9698S-7 replace BZT52C11S-TP directly?

A: Yes. DDZ9698S-7 meets all primary substitution criteria: 11 V nominal voltage, ±5% tolerance, 200 mW power rating, SOD-323 package, and -65°C to 150°C operating range. Reverse leakage is lower (50 nA vs. 100 nA), which is acceptable for direct replacement.

Q: What is the difference between SOD-323 and SOD-323F packages?

A: SOD-323 and SOD-323F are both surface mount packages for small signal diodes. SOD-323F is a variant designation. MM3Z11VC and MM3Z11VB use SOD-323F. Footprint compatibility depends on PCB design; verify package dimensions if substituting between variants.

Q: Can I use MM3Z11VT1G (300 mW) instead of BZT52C11S-TP (200 mW)?

A: Yes. MM3Z11VT1G provides higher power dissipation capability while maintaining identical 11 V voltage and ±5% tolerance. This substitution is suitable when circuit design permits or requires higher power handling. No electrical performance degradation occurs.

Q: Are there differences in reverse leakage current between substitutes?

A: Yes. Reverse leakage varies across substitutes: DDZ9698S-7 (50 nA @ 8.4 V), BZT52C11S-TP (100 nA @ 8 V), MMSZ5241BS-7-F (2 µA @ 8.4 V), and CMDZ11L (1 µA @ 8 V). Lower leakage is generally preferable in precision applications. Verify circuit requirements before selecting based on leakage specifications.

Q: Which substitute offers the tightest voltage tolerance?

A: MM3Z11VB and UDZ11B-7 both offer ±2% tolerance compared to the standard ±5%. These are suitable for applications requiring tighter voltage regulation. Both maintain 200 mW power rating and SOD-323 package compatibility.

Q: Are automotive-qualified alternatives available?

A: Yes. BZT52C11SQ-7-F and SZMM3Z11VT1G carry AEC-Q101 qualification. BZT52C11SQ-7-F maintains 200 mW rating. SZMM3Z11VT1G provides enhanced 300 mW rating with automotive qualification.

Q: What is the impedance (Zzt) parameter and why does it vary?

A: Impedance (Zzt) is the dynamic impedance of the Zener diode at specified operating conditions. It affects voltage regulation performance. Values range from 18 Ω to 80 Ω across substitutes. Lower impedance provides better voltage regulation. Verify circuit requirements if impedance is critical to application performance.

Q: Can I substitute CMDZ11L or CMDZ5241B for BZT52C11S-TP?

A: Yes, with consideration. Both maintain 11 V voltage and ±5% tolerance. CMDZ11L and CMDZ5241B provide 250 mW power rating (vs. 200 mW), which is acceptable. However, impedance differs: CMDZ11L (80 Ω) is significantly higher than BZT52C11S-TP (20 Ω). Verify circuit design if impedance-dependent performance is critical.

Q: What is the difference between tape and reel (TR) and bulk packaging?

A: Tape and reel packaging is standard for automated assembly and high-volume production. Bulk packaging is used for manual assembly or lower-volume applications. MM3Z11VB is available in bulk with high inventory (429,770 pcs). Most other substitutes are tape and reel packaged. Packaging selection depends on assembly process and volume requirements.

Q: Are all substitutes RoHS3 compliant?

A: All recommended substitutes are RoHS3 compliant except MM3Z11VB, which does not specify RoHS status in provided data. Verify RoHS compliance with manufacturer if required for your application.