CLL4700 TR Equivalent & Substitute Parts

Part Overview

The CLL4700 TR is a Zener diode manufactured by Central Semiconductor Corp, rated at 13 V nominal with 500 mW power dissipation in SOD-80 (DO-213AC, MINI-MELF) surface mount packaging. This component is classified as obsolete, indicating discontinued production and limited availability. Identification of equivalent and substitute parts is necessary to maintain design continuity and ensure procurement of functionally compatible alternatives for new production runs or design revisions.

Key Parameters

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

Substitute Part Grouping Explanation

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

Primary Substitution Criteria:

Voltage - Zener (Nom): 13 V
Power - Max: 500 mW
Mounting Type: Surface Mount
Package / Case: SOD-80 (DO-213AC, MINI-MELF)

Secondary Compatibility Factors:

Operating Temperature Range
Reverse Leakage Current characteristics
Forward Voltage characteristics
Product Status (Active vs. Obsolete)

Substitute parts are grouped into two categories:

Category 1: Direct Package Equivalents (SOD-80) Parts maintaining identical SOD-80 packaging with matching electrical specifications. These include Vishay TLZ series components (TLZ13A-GS08, TLZ13A-GS18, TLZ13B-GS18, TLZ13C-GS08, TLZ13C-GS18), which are active products with enhanced compliance certifications.

Category 2: Alternative Package (SOD-123) The CMHZ4700 TR from Central Semiconductor Corp provides electrical equivalence with modified packaging (SOD-123), suitable for applications where package footprint adjustment is acceptable.

Parameter Comparison

Parameter	CLL4700 TR	CMHZ4700 TR	TLZ13A-GS08	TLZ13A-GS18	TLZ13B-GS18	TLZ13C-GS08	TLZ13C-GS18
Manufacturer	Central Semiconductor Corp	Central Semiconductor Corp	Vishay General Semiconductor	Vishay General Semiconductor	Vishay General Semiconductor	Vishay General Semiconductor	Vishay General Semiconductor
Voltage - Zener (Nom)	13 V	13 V	13 V	13 V	13 V	13 V	13 V
Tolerance	±5%	±5%	-	-	-	-	-
Power - Max	500 mW	500 mW	500 mW	500 mW	500 mW	500 mW	500 mW
Current - Reverse Leakage @ Vr	50 nA @ 9.8 V	50 nA @ 9.8 V	40 nA @ 11.5 V	40 nA @ 11.5 V	40 nA @ 11.9 V	40 nA @ 12.3 V	40 nA @ 12.3 V
Voltage - Forward (Vf) (Max) @ If	1.5 V @ 100 mA	1.5 V @ 100 mA	1.5 V @ 200 mA	1.5 V @ 200 mA	1.5 V @ 200 mA	1.5 V @ 200 mA	1.5 V @ 200 mA
Operating Temperature	-65°C ~ 200°C	-65°C ~ 150°C	-65°C ~ 175°C	-65°C ~ 175°C	-65°C ~ 175°C	-65°C ~ 175°C	-65°C ~ 175°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	SOD-80	SOD-123	SOD-80	SOD-80	SOD-80	SOD-80	SOD-80
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
RoHS Status	-	-	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For SOD-80 Package Retention: The Vishay TLZ series (TLZ13A-GS08, TLZ13A-GS18, TLZ13B-GS18, TLZ13C-GS08, TLZ13C-GS18) provides direct package compatibility with the CLL4700 TR. All TLZ variants are active products with ROHS3 compliance and REACH unaffected status, ensuring long-term availability and regulatory alignment. These components maintain the SOD-80 (DO-213AC, MINI-MELF) footprint and deliver equivalent electrical performance at 13 V, 500 mW.

For Alternative Package Consideration: The CMHZ4700 TR from Central Semiconductor Corp offers electrical equivalence with SOD-123 packaging. This alternative is suitable for designs where package footprint modification is acceptable. The CMHZ4700 TR is an active product with identical voltage and power ratings, though operating temperature range is reduced to -65°C ~ 150°C compared to the original -65°C ~ 200°C specification.

Compliance and Availability: All recommended Vishay TLZ substitutes carry ROHS3 compliance certification and REACH unaffected status, supporting modern manufacturing and environmental requirements. Central Semiconductor's CMHZ4700 TR maintains REACH unaffected status. Current inventory levels for active products exceed 600 units across all TLZ variants, ensuring procurement feasibility.

Frequently Asked Questions (FAQ)

Q: Can the TLZ13 series directly replace the CLL4700 TR without PCB modification?

A: Yes, the TLZ13A-GS08, TLZ13A-GS18, TLZ13B-GS18, TLZ13C-GS08, and TLZ13C-GS18 all utilize SOD-80 (DO-213AC, MINI-MELF) packaging, maintaining identical footprint and pinout compatibility with the CLL4700 TR. No PCB layout changes are required.

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

A: The primary differences are in reverse leakage current specifications measured at different voltage points: TLZ13A at 11.5 V (40 nA), TLZ13B at 11.9 V (40 nA), and TLZ13C at 12.3 V (40 nA). All three maintain identical 13 V nominal voltage and 500 mW power ratings. Selection depends on specific leakage current requirements for the application.

Q: Is the CMHZ4700 TR a suitable alternative if PCB redesign is possible?

A: The CMHZ4700 TR provides electrical equivalence with SOD-123 packaging. It is an active product with identical 13 V, 500 mW specifications. However, the operating temperature range is limited to -65°C ~ 150°C compared to the original -65°C ~ 200°C. Verify application temperature requirements before selection.

Q: What are the GS08 and GS18 designations in the TLZ part numbers?

A: These designations indicate packaging configurations within the Tape & Reel (TR) format. Both GS08 and GS18 variants are available in SOD-80 packaging with identical electrical specifications. Selection is based on reel quantity and supply chain requirements.

Q: Are all substitute parts RoHS compliant?

A: All Vishay TLZ13 variants (TLZ13A-GS08, TLZ13A-GS18, TLZ13B-GS18, TLZ13C-GS08, TLZ13C-GS18) are ROHS3 compliant. The CMHZ4700 TR does not specify RoHS status in available documentation. For applications requiring RoHS certification, Vishay TLZ series components are the recommended selection.

Q: What is the REACH status of these substitute parts?

A: All substitute parts listed (Vishay TLZ series and Central Semiconductor CMHZ4700 TR) carry REACH unaffected status, indicating compliance with European chemical regulations.

Q: Can I use multiple substitute parts interchangeably in the same design?

A: Yes, all TLZ13 variants maintain identical 13 V nominal voltage and 500 mW power dissipation with SOD-80 packaging. Differences in reverse leakage current specifications are minor and do not affect functional interchangeability in standard voltage regulation applications. Verify specific leakage requirements for precision applications.

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