CLL4682 TR Equivalent & Substitute Parts

Part Overview

The CLL4682 TR is a Zener diode rated at 2.7 V, 500 mW, manufactured by Central Semiconductor Corp in SOD-80 (DO-213AC, MINI-MELF) surface mount package. This part is classified as obsolete, making equivalent and substitute components necessary for ongoing design support and production continuity. The CLL4682 TR operates across a temperature range of -65°C to 200°C with ±5% voltage tolerance and forward voltage of 1.5 V at 100 mA.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	2.7	V
Tolerance	±5%	-
Power - Max	500	mW
Current - Reverse Leakage @ Vr	1	µA @ 1 V
Voltage - Forward (Vf) (Max) @ If	1.5	V @ 100 mA
Operating Temperature	-65 to 200	°C
Mounting Type	Surface Mount	-
Package / Case	SOD-80, DO-213AC, MINI-MELF	-

Substitute Part Grouping Explanation

Substitution of the CLL4682 TR is determined by the following critical parameters:

Primary Substitution Criteria:

Zener voltage: 2.7 V nominal
Power dissipation: 500 mW maximum
Package type: SOD-80 (DO-213AC, MINI-MELF) surface mount
Mounting compatibility: Surface mount technology

Secondary Compatibility Factors:

Voltage tolerance (±5% or tighter acceptable)
Operating temperature range (minimum -65°C to 200°C or compatible subset)
Forward voltage characteristics
Reverse leakage current specifications

Substitute parts are grouped into two categories:

Category 1: Same Package (SOD-80), Active Status Parts TLZ2V7A-GS08, TLZ2V7A-GS18, TLZ2V7B-GS08, TLZ2V7B-GS18, TZM5223B-GS08, TZM5223B-GS18, TZMB2V7-GS08, TZMB2V7-GS18, and TZMC2V7-GS08 maintain identical SOD-80 packaging and 2.7 V / 500 mW specifications with active product status.

Category 2: Alternative Package (SOD-123), Active Status Part CMHZ4682 TR provides functional equivalence with different surface mount packaging (SOD-123) and active product status, suitable for designs where package footprint can be modified.

Parameter Comparison

Part Number	Manufacturer	Vz (V)	Tolerance	Power (mW)	Vf @ If (V)	Ir @ Vr (µA)	Temp Range (°C)	Package	Status
CLL4682 TR	Central Semiconductor	2.7	±5%	500	1.5 @ 100 mA	1 @ 1 V	-65 to 200	SOD-80	Obsolete
CMHZ4682 TR	Central Semiconductor	2.7	±5%	500	1.5 @ 100 mA	1 @ 1 V	-65 to 150	SOD-123	Active
TLZ2V7A-GS08	Vishay General Semiconductor	2.7	-	500	1.5 @ 200 mA	50 @ 1 V	-65 to 175	SOD-80	Active
TLZ2V7A-GS18	Vishay General Semiconductor	2.7	-	500	1.5 @ 200 mA	50 @ 1 V	-65 to 175	SOD-80	Active
TLZ2V7B-GS08	Vishay General Semiconductor	2.7	-	500	1.5 @ 200 mA	50 @ 1 V	-65 to 175	SOD-80	Active
TLZ2V7B-GS18	Vishay General Semiconductor	2.7	-	500	1.5 @ 200 mA	50 @ 1 V	-65 to 175	SOD-80	Active
TZM5223B-GS08	Vishay General Semiconductor	2.7	±5%	500	1.1 @ 200 mA	75 @ 1 V	-65 to 175	SOD-80	Active
TZM5223B-GS18	Vishay General Semiconductor	2.7	±5%	500	1.1 @ 200 mA	75 @ 1 V	-65 to 175	SOD-80	Active
TZMB2V7-GS08	Vishay General Semiconductor	2.7	±2%	500	1.5 @ 200 mA	10 @ 1 V	-65 to 175	SOD-80	Active
TZMB2V7-GS18	Vishay General Semiconductor	2.7	±2%	500	1.5 @ 200 mA	10 @ 1 V	-65 to 175	SOD-80	Active
TZMC2V7-GS08	Vishay General Semiconductor	2.7	±5%	500	1.5 @ 200 mA	10 @ 1 V	-65 to 175	SOD-80	Active

Engineering Selection Recommendations

Primary Recommendation: TZMC2V7-GS08

TZMC2V7-GS08 is the preferred substitute for CLL4682 TR. This part maintains identical electrical specifications (2.7 V, 500 mW, ±5% tolerance) and package type (SOD-80). The part is manufactured by Vishay General Semiconductor with active product status, AEC-Q101 automotive qualification, and ROHS3 compliance. Inventory availability is substantial at 55,200 pieces. The forward voltage and reverse leakage characteristics are compatible with the original specification.

Secondary Recommendation: TZMB2V7-GS08

TZMB2V7-GS08 offers enhanced tolerance (±2% versus ±5%) and lower reverse leakage current (10 µA versus 1 µA), providing improved performance margins. This part carries AEC-Q101 automotive qualification and ROHS3 compliance. Operating temperature range extends to -65°C to 175°C, which covers the primary operating window of the original part. Inventory is available at 17,780 pieces.

Alternative for Package Flexibility: CMHZ4682 TR

CMHZ4682 TR provides functional equivalence with SOD-123 packaging. This part is suitable for designs where package footprint modification is acceptable. It maintains identical electrical specifications and active product status. Operating temperature range is -65°C to 150°C, which is narrower than the original specification.

For SOD-80 Compatibility with Tighter Tolerance: TZM5223B-GS08

TZM5223B-GS08 maintains SOD-80 packaging with ±5% tolerance and active status. This part features lower impedance (30 Ohms) and reduced forward voltage (1.1 V @ 200 mA), which may provide advantages in specific circuit applications.

Frequently Asked Questions (FAQ)

Q: Can TZMC2V7-GS08 directly replace CLL4682 TR without PCB modification?

A: Yes. TZMC2V7-GS08 uses identical SOD-80 (DO-213AC, MINI-MELF) packaging and maintains the same electrical specifications (2.7 V, 500 mW, ±5% tolerance). No PCB layout changes are required.

Q: What is the difference between TLZ2V7B-GS08 and TZMC2V7-GS08?

A: Both parts maintain 2.7 V, 500 mW specifications in SOD-80 packaging. TLZ2V7B-GS08 does not specify tolerance in the provided data. TZMC2V7-GS08 specifies ±5% tolerance and carries AEC-Q101 automotive qualification. TZMC2V7-GS08 has lower reverse leakage (10 µA versus 50 µA).

Q: Is CMHZ4682 TR a suitable substitute if PCB redesign is possible?

A: CMHZ4682 TR is functionally equivalent with identical electrical specifications but uses SOD-123 packaging instead of SOD-80. This requires PCB footprint modification. The operating temperature range is -65°C to 150°C, which is narrower than the original -65°C to 200°C specification.

Q: What does AEC-Q101 qualification mean?

A: AEC-Q101 is an automotive qualification standard. Parts carrying this qualification (TZMC2V7-GS08, TZMB2V7-GS08, TZMB2V7-GS18) meet automotive industry reliability and quality requirements. This qualification is not required for all applications but indicates enhanced reliability screening.

Q: Why is the operating temperature range of CLL4682 TR (-65°C to 200°C) wider than most substitutes (-65°C to 175°C)?

A: The original CLL4682 TR specifies a maximum junction temperature of 200°C. Most active substitutes specify 175°C maximum. For applications requiring operation above 175°C, verify that the substitute part's thermal characteristics are adequate for the specific circuit design.

Q: Can TZM5223B-GS08 be used in place of TZMC2V7-GS08?

A: Both parts maintain 2.7 V, 500 mW specifications in SOD-80 packaging with ±5% tolerance and active status. TZM5223B-GS08 features lower impedance (30 Ohms versus 85 Ohms) and reduced forward voltage (1.1 V @ 200 mA versus 1.5 V @ 200 mA). Substitution is electrically valid; however, verify that the lower forward voltage does not affect circuit performance in voltage regulation or protection applications.

Q: What is the significance of the GS08 and GS18 suffixes?

A: The GS08 and GS18 suffixes indicate different tape and reel packaging configurations for surface mount assembly. Both are functionally identical parts with different packaging formats for automated pick-and-place equipment. Selection depends on assembly equipment compatibility, not electrical performance.

Q: Is ROHS3 compliance required for my application?

A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements. All active substitute parts listed (Vishay General Semiconductor products) are ROHS3 compliant. This is relevant for applications subject to EU regulations or customer requirements specifying ROHS compliance.

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