CLL4698 TR Zener Diode 11V 500mW SOD-80 Equivalent & Substitute Parts

Part Overview

The CLL4698 TR is a surface mount zener diode manufactured by Central Semiconductor Corp, rated at 11 V nominal zener voltage with 500 mW maximum power dissipation in SOD-80 (DO-213AC, MINI-MELF) packaging. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design requirements and production continuity. Substitute parts must maintain electrical compatibility across zener voltage, power rating, and thermal operating range while accommodating packaging variations where applicable.

Key Parameters

Parameter	CLL4698 TR
Voltage - Zener (Nom) (Vz)	11 V
Tolerance	±5%
Power - Max	500 mW
Current - Reverse Leakage @ Vr	50 nA @ 8.4 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
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts are grouped based on the following critical parameters that determine functional equivalence:

Primary Substitution Criteria:

Voltage - Zener (Nom): 11 V (exact match required)
Power - Max: 500 mW (exact match required)
Mounting Type: Surface Mount (required)
Package / Case: SOD-80 or SOD-123 (compatible package families)

Secondary Compatibility Factors:

Operating Temperature Range: Minimum -65°C lower bound; upper bound of 150°C or higher acceptable
Tolerance: ±5% tolerance preferred for direct replacement; unmarked tolerance acceptable for functional equivalence
Reverse Leakage Current: Specified values indicate device grade; variations acceptable within operational limits

Grouping Logic:

Group 1 - SOD-80 Package (Same Package as Original): Vishay TLZ series (TLZ11-GS08, TLZ11-GS18, TLZ11A-GS08, TLZ11A-GS18, TLZ11B-GS08, TLZ11B-GS18, TLZ11C-GS08, TLZ11C-GS18) and Vishay TZM5241B-GS08. These maintain identical SOD-80 packaging and are direct mechanical and electrical substitutes.

Group 2 - SOD-123 Package (Alternative Package): Central Semiconductor CMHZ4698 TR. This part maintains identical electrical specifications but uses SOD-123 packaging, requiring PCB layout modification.

Parameter Comparison

Part Number	Manufacturer	Vz (Nom)	Tolerance	Power Max	Vf (Max) @ If	Operating Temp	Package	Product Status
CLL4698 TR	Central Semiconductor Corp	11 V	±5%	500 mW	1.5 V @ 100 mA	-65°C ~ 200°C	SOD-80	Obsolete
CMHZ4698 TR	Central Semiconductor Corp	11 V	±5%	500 mW	1.5 V @ 100 mA	-65°C ~ 150°C	SOD-123	Active
TLZ11-GS08	Vishay General Semiconductor	11 V	—	500 mW	1.5 V @ 200 mA	-65°C ~ 175°C	SOD-80	Active
TLZ11-GS18	Vishay General Semiconductor	11 V	—	500 mW	1.5 V @ 200 mA	-65°C ~ 175°C	SOD-80	Active
TLZ11A-GS08	Vishay General Semiconductor	11 V	—	500 mW	1.5 V @ 200 mA	-65°C ~ 175°C	SOD-80	Active
TLZ11A-GS18	Vishay General Semiconductor	11 V	—	500 mW	1.5 V @ 200 mA	-65°C ~ 175°C	SOD-80	Active
TLZ11B-GS08	Vishay General Semiconductor	11 V	—	500 mW	1.5 V @ 200 mA	-65°C ~ 175°C	SOD-80	Active
TLZ11B-GS18	Vishay General Semiconductor	11 V	—	500 mW	1.5 V @ 200 mA	-65°C ~ 175°C	SOD-80	Active
TLZ11C-GS08	Vishay General Semiconductor	11 V	—	500 mW	1.5 V @ 200 mA	-65°C ~ 175°C	SOD-80	Active
TLZ11C-GS18	Vishay General Semiconductor	11 V	—	500 mW	1.5 V @ 200 mA	-65°C ~ 175°C	SOD-80	Active
TZM5241B-GS08	Vishay General Semiconductor	11 V	±5%	500 mW	1.1 V @ 200 mA	-65°C ~ 175°C	SOD-80	Active

Engineering Selection Recommendations

For Direct Replacement (Same Package, No PCB Modification):

The Vishay TLZ series (TLZ11-GS08, TLZ11-GS18, TLZ11A-GS08, TLZ11A-GS18, TLZ11B-GS08, TLZ11B-GS18, TLZ11C-GS08, TLZ11C-GS18) and TZM5241B-GS08 are active products in SOD-80 packaging with 11 V zener voltage and 500 mW power rating. All Vishay TLZ variants are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Operating temperature range of -65°C to 175°C covers the lower bound of the original specification; applications requiring operation above 175°C require evaluation against actual thermal requirements.

The Vishay TZM5241B-GS08 maintains ±5% tolerance matching the original CLL4698 TR and provides equivalent electrical performance with active product status and full compliance certifications.

For Alternative Packaging (PCB Layout Modification Required):

The Central Semiconductor CMHZ4698 TR provides identical electrical specifications in SOD-123 packaging. This part is active with REACH Unaffected status. Operating temperature range extends to 150°C, which is lower than the original 200°C specification; applications requiring operation above 150°C require alternative selection.

Compliance and Availability:

All recommended substitutes carry ROHS3 compliance and REACH Unaffected status. Inventory availability varies; Vishay TLZ11A-GS08 shows highest stock level at 147,897 pieces.

Frequently Asked Questions (FAQ)

Q: Can TLZ11-GS08 directly replace CLL4698 TR without PCB modification?

A: Yes. Both parts use SOD-80 packaging with identical footprints. Electrical specifications match across zener voltage (11 V), power rating (500 mW), and forward voltage characteristics. No PCB layout changes are required.

Q: What is the difference between TLZ11-GS08 and TLZ11A-GS08?

A: Both parts share identical zener voltage (11 V), power rating (500 mW), and operating temperature range (-65°C to 175°C). The suffix designations (base, A, B, C variants) indicate different device grades with varying reverse leakage current specifications. Selection between variants depends on leakage current requirements for the specific application.

Q: Why does CMHZ4698 TR have a lower maximum operating temperature (150°C vs. 200°C)?

A: CMHZ4698 TR uses SOD-123 packaging, which has different thermal characteristics than SOD-80. The 150°C specification reflects the thermal limits of the SOD-123 package. Applications requiring operation above 150°C must use SOD-80 packaged alternatives.

Q: Is the ±5% tolerance specification critical for substitution?

A: The ±5% tolerance on CLL4698 TR and TZM5241B-GS08 indicates tighter zener voltage control. Vishay TLZ series parts do not specify tolerance in the provided data but maintain 11 V nominal zener voltage. For applications requiring tight tolerance control, TZM5241B-GS08 is the preferred substitute.

Q: What does the GS08 and GS18 designation mean in Vishay part numbers?

A: These designations indicate different tape and reel packaging configurations (GS08 and GS18 refer to different reel sizes). Electrical specifications are identical between GS08 and GS18 variants of the same base part number. Selection depends on manufacturing equipment compatibility and tape reel requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. All Vishay substitute parts carry ROHS3 Compliant status. Central Semiconductor CMHZ4698 TR does not specify RoHS status in the provided data but carries REACH Unaffected designation.

Q: What is the significance of MSL 1 (Unlimited) rating on Vishay parts?

A: MSL 1 (Unlimited) indicates the component has unlimited shelf life and does not require moisture bake-out procedures before soldering. This simplifies supply chain handling and manufacturing processes compared to higher MSL ratings.

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