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CLL4698 BK Zener Diode 11V 500mW SOD-80 Equivalent & Substitute Parts
Part Overview
The CLL4698 BK 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) package. This part is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain electrical and mechanical compatibility for circuit applications requiring 11 V zener regulation.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Zener (Nom) | 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 | °C (TJ) |
| Mounting Type | Surface Mount | - |
| Package / Case | DO-213AC, MINI-MELF, SOD-80 | - |
Substitute Part Grouping Explanation
Substitution of the CLL4698 BK is determined by the following critical parameters:
Primary Substitution Criteria:
- Zener voltage: 11 V nominal
- Maximum power dissipation: 500 mW
- Package type: SOD-80 (DO-213AC, MINI-MELF) or SOD-123
- Mounting type: Surface Mount
- Tolerance: ±5% or unspecified (acceptable for general applications)
Substitution Logic:
Parts maintaining identical SOD-80 package, 11 V zener voltage, and 500 mW power rating are direct mechanical and electrical substitutes. These include Vishay TLZ series components (TLZ11-GS08, TLZ11-GS18, TLZ11A-GS08, TLZ11A-GS18, TLZ11B-GS08, TLZ11B-GS18, TLZ11C-GS08, TLZ11C-GS18) and Vishay TZM5241B-GS08, all maintaining SOD-80 package compatibility.
The Central Semiconductor CMHZ4698 BK provides electrical equivalence (11 V, 500 mW, ±5% tolerance) with alternative SOD-123 package, suitable for applications where package footprint change is acceptable.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Voltage - Zener (Nom) (Vz) | Power - Max | Package / Case | Operating Temperature | Product Status | Tolerance |
|---|---|---|---|---|---|---|---|
| CLL4698 BK | Central Semiconductor Corp | 11 V | 500 mW | DO-213AC, MINI-MELF, SOD-80 | -65°C ~ 200°C | Obsolete | ±5% |
| CMHZ4698 BK | Central Semiconductor Corp | 11 V | 500 mW | SOD-123 | -65°C ~ 150°C | Active | ±5% |
| TLZ11-GS08 | Vishay General Semiconductor - Diodes Division | 11 V | 500 mW | DO-213AC, MINI-MELF, SOD-80 | -65°C ~ 175°C | Active | - |
| TLZ11-GS18 | Vishay General Semiconductor - Diodes Division | 11 V | 500 mW | DO-213AC, MINI-MELF, SOD-80 | -65°C ~ 175°C | Active | - |
| TLZ11A-GS08 | Vishay General Semiconductor - Diodes Division | 11 V | 500 mW | DO-213AC, MINI-MELF, SOD-80 | -65°C ~ 175°C | Active | - |
| TLZ11A-GS18 | Vishay General Semiconductor - Diodes Division | 11 V | 500 mW | DO-213AC, MINI-MELF, SOD-80 | -65°C ~ 175°C | Active | - |
| TLZ11B-GS08 | Vishay General Semiconductor - Diodes Division | 11 V | 500 mW | DO-213AC, MINI-MELF, SOD-80 | -65°C ~ 175°C | Active | - |
| TLZ11B-GS18 | Vishay General Semiconductor - Diodes Division | 11 V | 500 mW | DO-213AC, MINI-MELF, SOD-80 | -65°C ~ 175°C | Active | - |
| TLZ11C-GS08 | Vishay General Semiconductor - Diodes Division | 11 V | 500 mW | DO-213AC, MINI-MELF, SOD-80 | -65°C ~ 175°C | Active | - |
| TLZ11C-GS18 | Vishay General Semiconductor - Diodes Division | 11 V | 500 mW | DO-213AC, MINI-MELF, SOD-80 | -65°C ~ 175°C | Active | - |
| TZM5241B-GS08 | Vishay General Semiconductor - Diodes Division | 11 V | 500 mW | DO-213AC, MINI-MELF, SOD-80 | -65°C ~ 175°C | Active | ±5% |
Engineering Selection Recommendations
Direct SOD-80 Package Substitutes (Preferred for Pin-Compatible Replacement):
The Vishay TLZ series (TLZ11-GS08, TLZ11-GS18, TLZ11A-GS08, TLZ11A-GS18, TLZ11B-GS08, TLZ11B-GS18, TLZ11C-GS08, TLZ11C-GS18) and TZM5241B-GS08 maintain identical SOD-80 package geometry and electrical specifications (11 V, 500 mW). All Vishay components are ROHS3 compliant and REACH unaffected. These parts are active products with established supply availability.
The TZM5241B-GS08 provides ±5% tolerance matching the original CLL4698 BK specification and is ROHS3 compliant.
Alternative Package Substitute (SOD-123):
The Central Semiconductor CMHZ4698 BK offers electrical equivalence with identical manufacturer lineage (11 V, 500 mW, ±5% tolerance) but uses SOD-123 package. This substitution requires PCB layout modification and is suitable only when package footprint change is acceptable. Operating temperature range is reduced to -65°C ~ 150°C compared to the original -65°C ~ 200°C specification.
Product Status Consideration:
All recommended substitutes are active products with current manufacturing status, ensuring long-term availability and supply chain continuity compared to the obsolete CLL4698 BK.
Frequently Asked Questions (FAQ)
Q: Can I directly replace CLL4698 BK with any Vishay TLZ11 variant?
A: Yes. All Vishay TLZ11 variants (TLZ11-GS08, TLZ11-GS18, TLZ11A-GS08, TLZ11A-GS18, TLZ11B-GS08, TLZ11B-GS18, TLZ11C-GS08, TLZ11C-GS18) maintain identical SOD-80 package dimensions and electrical specifications (11 V nominal zener voltage, 500 mW maximum power). These are pin-compatible and footprint-compatible replacements.
Q: What is the difference between TLZ11-GS08 and TLZ11-GS18?
A: Both parts are electrically identical with 11 V zener voltage and 500 mW power rating in SOD-80 package. The suffix designates tape reel configuration (GS08 and GS18 refer to different reel specifications). Selection depends on packaging and supply requirements, not electrical performance.
Q: Why does TZM5241B-GS08 have different impedance and leakage specifications?
A: TZM5241B-GS08 is a different product line within the same voltage and power class. While it maintains 11 V nominal zener voltage and 500 mW power dissipation in SOD-80 package, it exhibits different impedance (22 Ohms maximum) and reverse leakage characteristics (2 µA @ 8.4 V). These differences may affect circuit performance in precision applications. Verify circuit requirements before substitution.
Q: Can I use CMHZ4698 BK as a substitute if my PCB is designed for SOD-80?
A: No. CMHZ4698 BK uses SOD-123 package, which has different physical dimensions and pin spacing than SOD-80. Direct PCB substitution is not possible without layout modification. Use only if PCB redesign is acceptable.
Q: What is the operating temperature difference between CLL4698 BK and substitute parts?
A: CLL4698 BK operates from -65°C to 200°C. Vishay TLZ series substitutes operate from -65°C to 175°C, providing 25°C lower maximum temperature rating. CMHZ4698 BK operates from -65°C to 150°C. Verify application temperature requirements before selection.
Q: Are all recommended substitutes RoHS compliant?
A: All Vishay substitute parts (TLZ series and TZM5241B-GS08) are ROHS3 compliant. CMHZ4698 BK status is REACH unaffected. Confirm compliance requirements for your specific application and regulatory jurisdiction.
Q: Which substitute has the closest electrical match to CLL4698 BK?
A: TZM5241B-GS08 provides the closest electrical match, maintaining ±5% tolerance specification identical to CLL4698 BK. However, it exhibits higher reverse leakage (2 µA @ 8.4 V versus 50 nA @ 8.4 V) and different impedance characteristics. For applications sensitive to leakage current, Vishay TLZ series variants may be more suitable despite unspecified tolerance.
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