CLL4693 BK Zener Diode 7.5V 500mW SOD-80 Equivalent & Substitute Parts

Part Overview

The CLL4693 BK is a Zener diode manufactured by Central Semiconductor Corp, rated at 7.5 V nominal voltage with 500 mW maximum power dissipation in a surface mount SOD-80 (DO-213AC, MINI-MELF) package. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design requirements and production continuity. Equivalent parts maintain identical electrical specifications and package compatibility, while substitute parts offer functional equivalence with potential package or performance variations.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	7.5	V
Tolerance	±5%	-
Power - Max	500	mW
Current - Reverse Leakage @ Vr	10	µA @ 5.7 V
Voltage - Forward (Vf) (Max) @ If	1.5	V @ 100 mA
Operating Temperature Range	-65 to 200	°C (TJ)
Mounting Type	Surface Mount	-
Package / Case	DO-213AC, MINI-MELF, SOD-80	-

Substitute Part Grouping Explanation

Substitution of the CLL4693 BK is determined by the following critical parameters:

Primary Substitution Criteria:

Zener voltage: 7.5 V nominal
Maximum power dissipation: 500 mW
Package type: SOD-80 (DO-213AC, MINI-MELF) for direct mechanical compatibility
Mounting type: Surface mount

Secondary Compatibility Factors:

Voltage tolerance (±5% preferred for specification alignment)
Reverse leakage current characteristics
Forward voltage drop specifications
Operating temperature range (minimum -65°C to +175°C required)

Substitute parts are grouped into two categories:

Category 1: SOD-80 Package Equivalents – Parts maintaining identical SOD-80 packaging with 7.5 V / 500 mW specifications. These include Vishay TLZ series devices (TLZ7V5A-GS08, TLZ7V5A-GS18, TLZ7V5B-GS08, TLZ7V5B-GS18, TLZ7V5C-GS08, TLZ7V5C-GS18) and Vishay TZM5236B-GS08. All are active products with RoHS3 compliance.

Category 2: Alternative Package Substitute – The CMHZ4693 BK from Central Semiconductor Corp provides electrical equivalence (7.5 V / 500 mW / ±5%) but uses SOD-123 packaging instead of SOD-80, requiring PCB layout modification.

Parameter Comparison

Part Number	Manufacturer	Vz (Nom)	Tolerance	Power Max	Package	Operating Temp	Product Status
CLL4693 BK	Central Semiconductor Corp	7.5 V	±5%	500 mW	SOD-80	-65 to 200°C	Obsolete
CMHZ4693 BK	Central Semiconductor Corp	7.5 V	±5%	500 mW	SOD-123	-65 to 150°C	Active
TLZ7V5A-GS08	Vishay General Semiconductor	7.5 V	-	500 mW	SOD-80	-65 to 175°C	Active
TLZ7V5A-GS18	Vishay General Semiconductor	7.5 V	-	500 mW	SOD-80	-65 to 175°C	Active
TLZ7V5B-GS08	Vishay General Semiconductor	7.5 V	-	500 mW	SOD-80	-65 to 175°C	Active
TLZ7V5B-GS18	Vishay General Semiconductor	7.5 V	-	500 mW	SOD-80	-65 to 175°C	Active
TLZ7V5C-GS08	Vishay General Semiconductor	7.5 V	-	500 mW	SOD-80	-65 to 175°C	Active
TLZ7V5C-GS18	Vishay General Semiconductor	7.5 V	-	500 mW	SOD-80	-65 to 175°C	Active
TZM5236B-GS08	Vishay General Semiconductor	7.5 V	±5%	500 mW	SOD-80	-65 to 175°C	Active

Engineering Selection Recommendations

Direct SOD-80 Equivalents (Preferred for Drop-In Replacement):

The Vishay TLZ7V5 series (TLZ7V5A-GS08, TLZ7V5A-GS18, TLZ7V5B-GS08, TLZ7V5B-GS18, TLZ7V5C-GS08, TLZ7V5C-GS18) and TZM5236B-GS08 provide full mechanical and electrical compatibility with the CLL4693 BK. All are active products with RoHS3 compliance and REACH unaffected status. These parts maintain the SOD-80 package footprint, eliminating PCB redesign requirements. The TLZ7V5 series variants differ in packaging format (Tape & Reel or Cut Tape) and impedance specifications but share identical core electrical parameters. TZM5236B-GS08 includes ±5% tolerance specification matching the original part.

Alternative Package Substitute:

The CMHZ4693 BK from Central Semiconductor Corp offers electrical equivalence with identical voltage, tolerance, and power ratings. However, this part uses SOD-123 packaging, requiring PCB layout modification. The operating temperature range is reduced to -65 to 150°C compared to the original -65 to 200°C specification. This substitute is suitable only when PCB redesign is feasible and the reduced temperature range is acceptable for the application.

Compliance and Availability:

All recommended Vishay substitutes carry RoHS3 compliance and REACH unaffected status, meeting modern regulatory requirements. Inventory availability is confirmed for all active alternatives, with TLZ7V5B-GS08 offering the highest stock level (150,300 units).

Frequently Asked Questions (FAQ)

Q: Can the TLZ7V5 series parts directly replace the CLL4693 BK without PCB modification?

A: Yes. The TLZ7V5A, TLZ7V5B, and TLZ7V5C variants all use SOD-80 (DO-213AC, MINI-MELF) packaging identical to the CLL4693 BK. No PCB layout changes are required for these substitutes.

Q: What is the difference between TLZ7V5A-GS08, TLZ7V5B-GS08, and TLZ7V5C-GS08?

A: These variants share identical electrical specifications (7.5 V, 500 mW, SOD-80 package) but differ in reverse leakage current characteristics at specific voltage points and impedance specifications. TLZ7V5A-GS08 specifies 3 µA @ 6.5 V, TLZ7V5B-GS08 specifies 3 µA @ 6.73 V, and TLZ7V5C-GS08 specifies 3 µA @ 6.93 V. All are functionally equivalent for standard 7.5 V zener applications.

Q: What do the suffixes GS08 and GS18 indicate?

A: These suffixes denote packaging format. GS08 indicates Tape & Reel or Cut Tape & Digi-Reel packaging, while GS18 indicates Tape & Reel packaging. The electrical specifications remain identical between these variants.

Q: Is the CMHZ4693 BK a suitable replacement if PCB redesign is possible?

A: The CMHZ4693 BK provides electrical equivalence (7.5 V, 500 mW, ±5% tolerance) but requires PCB modification due to SOD-123 packaging. The operating temperature range is reduced to -65 to 150°C, which may be limiting for applications requiring the original -65 to 200°C range. Evaluate application temperature requirements before selecting this substitute.

Q: Does the TZM5236B-GS08 offer any advantages over the TLZ7V5 series?

A: The TZM5236B-GS08 maintains ±5% tolerance specification matching the original CLL4693 BK, whereas the TLZ7V5 series does not specify tolerance. Both use SOD-80 packaging and share identical 7.5 V / 500 mW ratings. The TZM5236B-GS08 specifies lower forward voltage (1.1 V @ 200 mA versus 1.5 V @ 200 mA) and lower impedance (6 Ohms versus 8 Ohms), which may provide marginal performance benefits in specific circuit topologies.

Q: Are all recommended substitutes RoHS3 compliant?

A: Yes. All Vishay substitutes (TLZ7V5 series and TZM5236B-GS08) carry RoHS3 compliance certification. The CMHZ4693 BK does not specify RoHS status in the provided data.

Q: What is the Moisture Sensitivity Level (MSL) for the substitute parts?

A: All Vishay substitutes carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

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