Equivalent & Substitute Parts for CLL5233B TR

Part Overview

The CLL5233B TR is a Zener diode rated at 6 V, 500 mW, designed for surface mount applications in the SOD-80 package. This component is classified as obsolete, which necessitates identification of active equivalent parts to maintain design continuity and ensure long-term supply chain reliability. The substitute part identified maintains electrical and mechanical compatibility while offering active product status from an established manufacturer.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	6	V
Tolerance	±5%	-
Power - Max	500	mW
Impedance (Max)	7	Ohms
Current - Reverse Leakage @ Vr	5	µA @ 3.5 V
Voltage - Forward (Vf) (Max) @ If	1.25 / 1.1	V @ 200 mA
Operating Temperature Range	-65 to 200 / -65 to 175	°C
Mounting Type	Surface Mount	-
Package / Case	DO-213AC, MINI-MELF, SOD-80	-
Moisture Sensitivity Level	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitution of the CLL5233B TR with the TZM5233B-GS08 is based on strict electrical and mechanical parameter matching:

Matching Parameters:

Zener voltage: 6 V nominal with ±5% tolerance
Power dissipation: 500 mW maximum
Impedance: 7 Ohms maximum
Reverse leakage current: 5 µA @ 3.5 V
Package: SOD-80 (DO-213AC, MINI-MELF)
Mounting: Surface Mount
Moisture sensitivity: MSL 1 (Unlimited)
Regulatory compliance: REACH Unaffected, EAR99 classification

Acceptable Variation:

Forward voltage (Vf) at 200 mA: CLL5233B TR specifies 1.25 V maximum; TZM5233B-GS08 specifies 1.1 V maximum. The substitute exhibits lower forward voltage, which is acceptable for voltage regulation applications.
Operating temperature upper limit: CLL5233B TR rated to 200°C; TZM5233B-GS08 rated to 175°C. The substitute's lower upper limit is acceptable for standard industrial and commercial applications.

Parameter Comparison

Parameter	CLL5233B TR	TZM5233B-GS08	Match Status
Manufacturer	Central Semiconductor Corp	Vishay General Semiconductor - Diodes Division	Different
Product Status	Obsolete	Active	Substitute is Active
Voltage - Zener (Nom)	6 V	6 V	Match
Tolerance	±5%	±5%	Match
Power - Max	500 mW	500 mW	Match
Impedance (Max)	7 Ohms	7 Ohms	Match
Current - Reverse Leakage @ Vr	5 µA @ 3.5 V	5 µA @ 3.5 V	Match
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 200 mA	1.1 V @ 200 mA	Substitute Lower
Operating Temperature Range	-65°C to 200°C	-65°C to 175°C	Substitute Narrower
Package / Case	DO-213AC, MINI-MELF, SOD-80	DO-213AC, MINI-MELF, SOD-80	Match
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Match
RoHS Status	Not specified	ROHS3 Compliant	Substitute Compliant

Engineering Selection Recommendations

The TZM5233B-GS08 is the direct equivalent for the obsolete CLL5233B TR based on the following engineering criteria:

Product Status: The substitute part is active and manufactured by Vishay General Semiconductor, a tier-one diode manufacturer, ensuring long-term availability and supply chain stability.

Regulatory Compliance: The TZM5233B-GS08 is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. Both parts share identical EAR99 export classification and HTSUS coding.

Electrical Compatibility: All critical electrical parameters match exactly: 6 V zener voltage, ±5% tolerance, 500 mW power rating, 7 Ohms impedance, and 5 µA reverse leakage current. The lower forward voltage of the substitute (1.1 V vs. 1.25 V) presents no compatibility issues in voltage regulation circuits.

Thermal Considerations: The substitute's operating temperature range (-65°C to 175°C) covers standard industrial and commercial applications. Applications requiring operation above 175°C must retain the original CLL5233B TR or identify alternative solutions.

Packaging: Both parts use identical SOD-80 (DO-213AC, MINI-MELF) surface mount packaging with MSL 1 moisture sensitivity, ensuring direct PCB footprint compatibility.

Frequently Asked Questions (FAQ)

Q: Can the TZM5233B-GS08 be used as a direct replacement for CLL5233B TR in existing designs?

A: Yes. The substitute part matches all critical electrical parameters: 6 V zener voltage, ±5% tolerance, 500 mW power dissipation, and SOD-80 package. PCB footprints and circuit connections are identical. No design modifications are required.

Q: What is the difference in forward voltage between these parts?

A: The CLL5233B TR specifies a maximum forward voltage of 1.25 V at 200 mA, while the TZM5233B-GS08 specifies 1.1 V at 200 mA. The substitute exhibits lower forward voltage, which is acceptable and does not affect circuit operation in voltage regulation applications.

Q: Are there temperature limitations when using the TZM5233B-GS08?

A: The TZM5233B-GS08 is rated for -65°C to 175°C operation. The original CLL5233B TR extends to 200°C. For applications requiring sustained operation above 175°C, the original part specification must be retained or alternative components evaluated.

Q: Is the TZM5233B-GS08 available in the same packaging?

A: Yes. Both parts use SOD-80 (DO-213AC, MINI-MELF) surface mount packaging. The supplier device package designation is SOD-80 MiniMELF for the substitute, confirming identical physical form factor and PCB compatibility.

Q: What is the inventory status of the substitute part?

A: The TZM5233B-GS08 is active production with 1120 pieces in stock. The original CLL5233B TR is obsolete with 1197 pieces remaining in inventory.

Q: Are there any regulatory or compliance differences?

A: The TZM5233B-GS08 is ROHS3 compliant, while the CLL5233B TR compliance status is not specified. Both parts are REACH unaffected and carry EAR99 export classification. The substitute meets current environmental standards.

Q: Can these parts be used interchangeably in tape and reel packaging?

A: The TZM5233B-GS08 is supplied in Tape & Reel (TR) packaging. Confirm packaging format requirements for your procurement process, as the original CLL5233B TR packaging format is not specified in the provided data.

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