DL5236B-TP Zener Diode Equivalent & Substitute Parts

Part Overview

The DL5236B-TP is a surface mount Zener diode rated at 7.5 V nominal voltage with 500 mW power dissipation, manufactured by Micro Commercial Co in Mini MELF (DO-213AC) package. This component is classified as obsolete product status. Identifying equivalent and substitute parts is necessary due to obsolescence, ensuring design continuity and supply chain reliability for applications requiring 7.5 V Zener regulation in compact surface mount form factors.

Substiute Parts

DL5236B-TP

Micro Commercial CoIn Stock: 1187DL5236B-TP Datasheet

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MMSZ5236B-TP

Micro Commercial CoIn Stock: 4034MMSZ5236B-TP Datasheet

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CLL5236B TR PBFREE

Central Semiconductor CorpIn Stock: 9095CLL5236B TR PBFREE Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DL5236B-TP is determined by the following critical parameters:

Electrical Equivalence Requirements:

• Voltage - Zener (Nom): 7.5 V (exact match required)
• Tolerance: ±5% (exact match required)
• Power - Max: 500 mW (exact match required)
• Impedance (Max): 6 Ohms (exact match required)
• Current - Reverse Leakage @ Vr: 3 µA @ 6 V (exact match required)

Mechanical & Compliance Requirements:

• Mounting Type: Surface Mount (required)
• RoHS Status: ROHS3 Compliant (required)
• Moisture Sensitivity Level: 1 (Unlimited) (required)

Package Compatibility: Substitutes may utilize different surface mount packages (Mini MELF, SOD-123, SOD-80) provided all electrical parameters remain identical and the package is compatible with the target PCB layout.

Parameter Comparison

Engineering Selection Recommendations

MMSZ5236B-TP (Micro Commercial Co): This part maintains electrical equivalence across all critical parameters and is classified as active product status, ensuring ongoing availability. The SOD-123 package offers a smaller footprint alternative to Mini MELF. Operating temperature range (-55°C ~ 150°C) is narrower than the main part; verify compatibility with application thermal requirements. ROHS3 compliance and MSL-1 rating are maintained.

CLL5236B TR PBFREE (Central Semiconductor Corp): This part provides electrical equivalence with extended operating temperature range (-65°C ~ 200°C), matching or exceeding the main part's lower temperature limit and exceeding the upper limit. Active product status ensures supply continuity. Package options include Mini MELF and SOD-80, maintaining mechanical compatibility with original design. ROHS3 compliance and MSL-1 rating are maintained. Forward voltage specification differs (1.25 V @ 200 mA vs. 1.1 V @ 200 mA for main part); verify circuit tolerance to this variation.

Frequently Asked Questions (FAQ)

Q: Can MMSZ5236B-TP be used as a direct replacement for DL5236B-TP?

A: MMSZ5236B-TP meets all electrical parameter requirements (7.5 V, ±5%, 500 mW, 6 Ohms impedance, 3 µA reverse leakage). The primary consideration is package change from Mini MELF to SOD-123. Verify PCB layout compatibility with the smaller SOD-123 footprint. Operating temperature range is reduced (-55°C ~ 150°C); confirm application does not require the original -65°C lower limit.

Q: What is the difference between CLL5236B TR PBFREE and DL5236B-TP?

A: Both parts are electrically equivalent at 7.5 V, ±5%, 500 mW. CLL5236B TR PBFREE offers extended upper operating temperature (200°C vs. 175°C) and maintains the -65°C lower limit. Forward voltage differs slightly (1.25 V @ 200 mA vs. 1.1 V @ 200 mA). Package options are compatible (Mini MELF/SOD-80). CLL5236B TR PBFREE is active status, addressing obsolescence of DL5236B-TP.

Q: Are all three parts RoHS compliant?

A: Yes. DL5236B-TP, MMSZ5236B-TP, and CLL5236B TR PBFREE are all ROHS3 compliant with MSL-1 (Unlimited) moisture sensitivity rating.

Q: Which substitute should be selected for new designs?

A: Selection depends on package requirement and operating temperature range. For Mini MELF/SOD-80 package compatibility with extended temperature range, use CLL5236B TR PBFREE. For compact SOD-123 package with standard temperature range, use MMSZ5236B-TP. Both are active status parts.

Q: Does package change affect circuit performance?

A: Package change does not affect electrical performance (voltage regulation, impedance, leakage current). Physical footprint and PCB layout compatibility must be verified. SOD-123 is smaller than Mini MELF; confirm available board space and thermal dissipation requirements.