CLL5228B TR Equivalent & Substitute Parts

Part Overview

The CLL5228B TR is a Zener diode rated at 3.9 V nominal with 500 mW power dissipation, manufactured by Central Semiconductor Corp in SOD-80 (MINI-MELF) surface mount package. This part is classified as obsolete. Substitute parts are necessary to maintain design continuity and ensure component availability for new production runs and field replacements. Active equivalent models from Vishay General Semiconductor - Diodes Division provide direct functional replacement with enhanced specifications and current manufacturing status.

Key Parameters

Parameter	CLL5228B TR	Unit
Voltage - Zener (Nom)	3.9	V
Tolerance	±5%	-
Power - Max	500	mW
Impedance (Max)	23	Ohms
Current - Reverse Leakage @ Vr	10	µA @ 1 V
Voltage - Forward (Vf) (Max) @ If	1.25	V @ 200 mA
Operating Temperature Range	-65 to 200	°C
Mounting Type	Surface Mount	-
Package / Case	DO-213AC, MINI-MELF, SOD-80	-
Product Status	Obsolete	-

Substitute Part Grouping Explanation

Substitution of the CLL5228B TR is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - Zener (Nom): 3.9 V (exact match required)
Power - Max: 500 mW (exact match required)
Package / Case: DO-213AC, MINI-MELF, SOD-80 (exact match required)
Mounting Type: Surface Mount (exact match required)

Secondary Compatibility Parameters:

Impedance (Max): Tolerance range 23–90 Ohms acceptable
Current - Reverse Leakage @ Vr: Range 2–10 µA @ 1 V acceptable
Voltage - Forward (Vf) (Max) @ If: Range 1.1–1.5 V @ 200 mA acceptable
Operating Temperature Range: Minimum -65°C to maximum 175–200°C acceptable
Tolerance: ±2% to ±5% acceptable

All substitute parts listed maintain the core electrical specifications (3.9 V, 500 mW, SOD-80) and are manufactured by Vishay General Semiconductor - Diodes Division with active product status.

Parameter Comparison

Part Number	Manufacturer	Vz (V)	Tolerance	Power (mW)	Zzt (Ohms)	Ir @ 1V (µA)	Vf @ 200mA (V)	Temp Range (°C)	Status	Packaging
CLL5228B TR	Central Semiconductor Corp	3.9	±5%	500	23	10	1.25	-65 to 200	Obsolete	TR
TLZ3V9-GS08	Vishay	3.9	-	500	50	-	1.5	-65 to 175	Active	TR
TLZ3V9-GS18	Vishay	3.9	-	500	50	-	1.5	-65 to 175	Active	TR
TLZ3V9A-GS08	Vishay	3.9	-	500	50	3	1.5	-65 to 175	Active	TR
TLZ3V9A-GS18	Vishay	3.9	-	500	50	3	1.5	-65 to 175	Active	TR
TLZ3V9B-GS08	Vishay	3.9	-	500	50	3	1.5	-65 to 175	Active	CT & Digi-Reel
TLZ3V9B-GS18	Vishay	3.9	-	500	50	3	1.5	-65 to 175	Active	TR
TZM5228B-GS08	Vishay	3.9	±5%	500	23	10	1.1	-65 to 175	Active	TR
TZM5228B-GS18	Vishay	3.9	±5%	500	23	10	1.1	-65 to 175	Active	TR
TZMB3V9-GS08	Vishay	3.9	±2%	500	90	2	1.5	-65 to 175	Active	TR
TZMB3V9-GS18	Vishay	3.9	±2%	500	90	2	1.5	-65 to 175	Active	TR

Engineering Selection Recommendations

Primary Recommendation for Direct Replacement:

TZM5228B-GS08 and TZM5228B-GS18 provide the closest electrical match to CLL5228B TR. These parts maintain identical tolerance (±5%), impedance (23 Ohms), and reverse leakage current (10 µA @ 1 V) specifications. Both are manufactured by Vishay with active product status and ROHS3 compliance. The TZM5228B series is the preferred choice when exact parameter matching is required.

Alternative Options for Relaxed Specifications:

TLZ3V9B-GS08 and TLZ3V9B-GS18 are suitable when impedance variation (50 Ohms vs. 23 Ohms) and reduced reverse leakage current (3 µA vs. 10 µA) are acceptable. These parts offer improved performance characteristics and are available in higher inventory quantities.

TZMB3V9-GS08 and TZMB3V9-GS18 are qualified for automotive applications (AEC-Q101) with tighter tolerance (±2%) and lower reverse leakage (2 µA). These are appropriate for designs requiring automotive-grade components.

Compliance and Availability:

All substitute parts are ROHS3 compliant, REACH unaffected, and classified as EAR99. Packaging options include Tape & Reel (TR) and Cut Tape with Digi-Reel. Inventory availability ranges from 627 to 45,300 pieces across the substitute portfolio.

Frequently Asked Questions (FAQ)

Q: Can TLZ3V9-GS08 directly replace CLL5228B TR?

A: TLZ3V9-GS08 is electrically compatible for applications where impedance tolerance of 50 Ohms (versus 23 Ohms) and unspecified tolerance are acceptable. The core specifications (3.9 V, 500 mW, SOD-80) are identical. Verify circuit requirements for impedance sensitivity before selection.

Q: What is the difference between TZM5228B-GS08 and TLZ3V9B-GS08?

A: TZM5228B-GS08 maintains the original ±5% tolerance and 23 Ohms impedance of CLL5228B TR. TLZ3V9B-GS08 has 50 Ohms impedance and lower reverse leakage (3 µA vs. 10 µA). TZM5228B-GS08 is the closer electrical equivalent.

Q: Are TZMB3V9 parts suitable for non-automotive applications?

A: Yes. TZMB3V9-GS08 and TZMB3V9-GS18 are AEC-Q101 qualified automotive-grade components but are functionally suitable for general industrial and consumer applications. The ±2% tolerance and 2 µA reverse leakage provide superior performance characteristics.

Q: What is the difference between GS08 and GS18 packaging designations?

A: Both GS08 and GS18 designations refer to Tape & Reel (TR) packaging in SOD-80 MiniMELF format. The numeric suffix indicates different reel configurations. Electrical specifications are identical between GS08 and GS18 variants of the same part number.

Q: Is TLZ3V9B-GS08 available in higher quantities than other substitutes?

A: Yes. TLZ3V9B-GS08 has 45,300 pieces in stock, significantly higher than other alternatives. This part is available in Cut Tape (CT) & Digi-Reel packaging, offering flexibility for both high-volume and small-quantity procurement.

Q: Can I use TZMB3V9-GS08 in place of TZM5228B-GS08?

A: Both parts are functionally compatible as 3.9 V, 500 mW SOD-80 Zener diodes. TZMB3V9-GS08 offers tighter tolerance (±2% vs. ±5%) and lower reverse leakage (2 µA vs. 10 µA), making it suitable for applications requiring higher precision. Impedance difference (90 Ohms vs. 23 Ohms) must be evaluated for circuit compatibility.

Q: What is the operating temperature difference between CLL5228B TR and substitute parts?

A: CLL5228B TR operates from -65°C to 200°C. Most Vishay substitutes operate from -65°C to 175°C. For applications requiring operation above 175°C, verify thermal requirements against the reduced upper temperature limit of substitute parts.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (TLZ3V9 series, TZM5228B series, and TZMB3V9 series) are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

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