CLL4700 BK Zener Diode 13V 500mW SOD-80 Equivalent & Substitute Parts

Part Overview

The CLL4700 BK is a 13 V, 500 mW Zener diode manufactured by Central Semiconductor Corp in SOD-80 (DO-213AC, MINI-MELF) surface mount package. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design requirements and production continuity. The part operates across a temperature range of -65°C to 200°C and maintains ±5% voltage tolerance with specified reverse leakage characteristics.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nominal)	13	V
Power - Maximum	500	mW
Tolerance	±5%	-
Current - Reverse Leakage @ Vr	50 nA @ 9.8 V	nA
Voltage - Forward (Max) @ If	1.5 V @ 100 mA	V
Operating Temperature Range	-65°C to 200°C	°C
Mounting Type	Surface Mount	-
Package / Case	SOD-80 (DO-213AC, MINI-MELF)	-

Substitute Part Grouping Explanation

Substitution of the CLL4700 BK is determined by the following critical parameters:

Primary Substitution Criteria:

Zener voltage: 13 V nominal
Maximum power dissipation: 500 mW
Mounting type: Surface Mount
Package compatibility: SOD-80 (DO-213AC, MINI-MELF)

Secondary Compatibility Factors:

Voltage tolerance specifications
Reverse leakage current characteristics
Forward voltage drop specifications
Operating temperature range

Substitute parts are grouped into two categories:

Category 1: Same Package (SOD-80) - Direct Mechanical Substitutes Parts TLZ13A-GS08, TLZ13A-GS18, TLZ13B-GS18, TLZ13C-GS08, and TLZ13C-GS18 maintain identical SOD-80 packaging and electrical specifications (13 V, 500 mW). These parts are manufactured by Vishay General Semiconductor and are classified as active products with RoHS3 compliance.

Category 2: Alternative Package (SOD-123) - Functional Equivalent with Package Variation Part CMHZ4700 BK maintains identical electrical specifications (13 V, 500 mW, ±5% tolerance) but uses SOD-123 packaging. This part is manufactured by Central Semiconductor Corp and is classified as active. Package substitution requires PCB layout modification.

Parameter Comparison

Part Number	Manufacturer	Vz (Nom)	Power (Max)	Package	Tolerance	Operating Temp	Product Status	RoHS Status
CLL4700 BK	Central Semiconductor Corp	13 V	500 mW	SOD-80	±5%	-65°C to 200°C	Obsolete	-
CMHZ4700 BK	Central Semiconductor Corp	13 V	500 mW	SOD-123	±5%	-65°C to 150°C	Active	REACH Unaffected
TLZ13A-GS08	Vishay General Semiconductor	13 V	500 mW	SOD-80	-	-65°C to 175°C	Active	ROHS3 Compliant
TLZ13A-GS18	Vishay General Semiconductor	13 V	500 mW	SOD-80	-	-65°C to 175°C	Active	ROHS3 Compliant
TLZ13B-GS18	Vishay General Semiconductor	13 V	500 mW	SOD-80	-	-65°C to 175°C	Active	ROHS3 Compliant
TLZ13C-GS08	Vishay General Semiconductor	13 V	500 mW	SOD-80	-	-65°C to 175°C	Active	ROHS3 Compliant
TLZ13C-GS18	Vishay General Semiconductor	13 V	500 mW	SOD-80	-	-65°C to 175°C	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (No PCB Modification Required):

The Vishay TLZ13 series (TLZ13A-GS08, TLZ13A-GS18, TLZ13B-GS18, TLZ13C-GS08, TLZ13C-GS18) provides direct mechanical and electrical substitution in SOD-80 packaging. All variants are active products with ROHS3 compliance and REACH unaffected status, ensuring regulatory compliance for current production. The TLZ13 series maintains 13 V nominal zener voltage and 500 mW power rating with operating temperature range of -65°C to 175°C. Reverse leakage current specifications (40 nA at measurement voltages between 11.5 V and 12.3 V) are comparable to the original CLL4700 BK specification (50 nA @ 9.8 V).

For Alternative Package Substitution (PCB Layout Modification Required):

The CMHZ4700 BK from Central Semiconductor Corp provides functional equivalence with identical electrical specifications (13 V, 500 mW, ±5% tolerance) in SOD-123 packaging. This part is active and maintains REACH compliance. The operating temperature range is -65°C to 150°C, which is lower than the original part's -65°C to 200°C specification. This alternative is suitable for applications where the reduced upper temperature limit is acceptable and PCB layout modification is feasible.

Compliance Considerations:

All recommended substitute parts carry active product status and appropriate regulatory certifications. The Vishay TLZ13 series components are ROHS3 compliant with MSL rating of 1 (Unlimited), indicating no moisture sensitivity constraints during storage and handling.

Frequently Asked Questions (FAQ)

Q: Can TLZ13A-GS08, TLZ13A-GS18, TLZ13B-GS18, TLZ13C-GS08, and TLZ13C-GS18 be used interchangeably with CLL4700 BK?

A: Yes, all five Vishay TLZ13 variants are direct substitutes for CLL4700 BK. They maintain identical SOD-80 packaging, 13 V zener voltage, and 500 mW power rating. No PCB layout modification is required. The variants differ in packaging configuration (GS08 vs. GS18 tape reel specifications) and reverse leakage measurement conditions, but all meet the core electrical requirements.

Q: What is the difference between SOD-80 and SOD-123 packages?

A: SOD-80 (DO-213AC, MINI-MELF) and SOD-123 are distinct surface mount package formats with different physical dimensions and PCB footprints. SOD-80 is the original package for CLL4700 BK. SOD-123 is used by CMHZ4700 BK and requires different PCB layout and assembly considerations. Direct package substitution without PCB modification is not possible.

Q: Is CMHZ4700 BK a suitable substitute if PCB redesign is possible?

A: CMHZ4700 BK provides functional equivalence with 13 V nominal voltage and 500 mW power rating in SOD-123 packaging. The operating temperature range is -65°C to 150°C, which is lower than CLL4700 BK's -65°C to 200°C range. Substitution is valid only if the application's maximum operating temperature does not exceed 150°C. PCB layout modification is required.

Q: What are the reverse leakage current differences among substitute parts?

A: CLL4700 BK specifies 50 nA @ 9.8 V. Vishay TLZ13 series parts specify 40 nA at measurement voltages between 11.5 V and 12.3 V depending on variant. These specifications are measured at different reference voltages, making direct comparison imprecise. All values are within acceptable leakage ranges for typical zener diode applications.

Q: Are all substitute parts RoHS compliant?

A: All Vishay TLZ13 series variants (TLZ13A-GS08, TLZ13A-GS18, TLZ13B-GS18, TLZ13C-GS08, TLZ13C-GS18) are ROHS3 compliant. CMHZ4700 BK carries REACH Unaffected status. Compliance certifications are current for both manufacturers' active products.

Q: What is the difference between TLZ13A, TLZ13B, and TLZ13C variants?

A: All three variants (TLZ13A, TLZ13B, TLZ13C) maintain identical 13 V zener voltage and 500 mW power rating in SOD-80 packaging. Differences exist in reverse leakage current measurement conditions (11.5 V, 11.9 V, and 12.3 V respectively) and impedance specifications. Selection among variants depends on specific reverse leakage requirements for the application.

Q: Can GS08 and GS18 packaging variants be used interchangeably?

A: GS08 and GS18 designations refer to tape reel packaging configurations for automated assembly. Both variants use identical SOD-80 component packages and electrical specifications. Interchangeability depends on assembly equipment compatibility with the specific tape reel format. Electrical performance is identical.

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