CLL5232B BK TIN/LEAD Zener Diode Equivalent & Substitute Parts

Part Overview

The CLL5232B BK TIN/LEAD is a surface mount zener diode manufactured by Central Semiconductor Corp, rated at 5.6 V nominal with 500 mW maximum power dissipation and ±5% voltage tolerance. This component is classified as an active product with unlimited moisture sensitivity level (MSL 1) and is suitable for voltage regulation and protection applications in electronic circuits. Substitute parts are identified to provide alternative sourcing options when the primary part number becomes unavailable or when design specifications permit tolerance variations.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	5.6	V
Tolerance	±5%	—
Power - Max	500	mW
Impedance (Max)	11	Ohms
Current - Reverse Leakage @ Vr	5	µA @ 3 V
Voltage - Forward (Vf) (Max) @ If	1.25	V @ 200 mA
Operating Temperature Range	-65 to 200	°C (TJ)
Mounting Type	Surface Mount	—
Package / Case	DO-213AC, MINI-MELF, SOD-80	—
Supplier Device Package	SOD-80	—
Product Status	Active	—

Substitute Part Grouping Explanation

Substitution of zener diodes is determined by electrical and mechanical parameter compatibility. The CLL5232B BK TIN/LEAD qualifies for substitution with the CLL5232D BK TIN/LEAD based on the following criteria:

Critical Matching Parameters:

Nominal zener voltage: 5.6 V (identical)
Maximum power dissipation: 500 mW (identical)
Maximum impedance: 11 Ohms (identical)
Reverse leakage current: 5 µA @ 3 V (identical)
Forward voltage: 1.25 V @ 200 mA (identical)
Operating temperature range: -65°C to 200°C (identical)
Mounting type: Surface Mount (identical)
Package designation: SOD-80 (identical)
Manufacturer: Central Semiconductor Corp (identical)

Tolerance Variation: The substitute part CLL5232D BK TIN/LEAD features ±1% voltage tolerance compared to the ±5% tolerance of the main part. This represents a tighter tolerance specification, making the substitute suitable for applications where the main part's tolerance is acceptable.

Parameter Comparison

Parameter	CLL5232B BK TIN/LEAD	CLL5232D BK TIN/LEAD	Match Status
Voltage - Zener (Nom)	5.6 V	5.6 V	Identical
Tolerance	±5%	±1%	Substitute tighter
Power - Max	500 mW	500 mW	Identical
Impedance (Max)	11 Ohms	11 Ohms	Identical
Current - Reverse Leakage @ Vr	5 µA @ 3 V	5 µA @ 3 V	Identical
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 200 mA	1.25 V @ 200 mA	Identical
Operating Temperature Range	-65°C to 200°C	-65°C to 200°C	Identical
Mounting Type	Surface Mount	Surface Mount	Identical
Package / Case	DO-213AC, MINI-MELF, SOD-80	DO-213AC, MINI-MELF, SOD-80	Identical
Supplier Device Package	SOD-80	SOD-80	Identical
Product Status	Active	Active	Identical
RoHS Status	RoHS non-compliant	RoHS non-compliant	Identical
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Identical
REACH Status	REACH Unaffected	REACH Unaffected	Identical

Engineering Selection Recommendations

Both the CLL5232B BK TIN/LEAD and CLL5232D BK TIN/LEAD are active products from Central Semiconductor Corp with identical regulatory and compliance status. Both components are RoHS non-compliant and REACH unaffected, with matching ECCN and HTSUS classifications.

The CLL5232D BK TIN/LEAD substitute part provides tighter voltage tolerance (±1% versus ±5%), which may be advantageous in precision voltage regulation applications. The identical electrical performance across all other parameters, combined with matching package specifications and operating temperature ranges, ensures direct functional compatibility in circuit applications.

Selection between these parts should be based on tolerance requirements specific to the application circuit design. The substitute part's superior tolerance specification does not introduce any compatibility constraints and maintains full electrical and mechanical interchangeability.

Frequently Asked Questions (FAQ)

Q: Can the CLL5232D BK TIN/LEAD replace the CLL5232B BK TIN/LEAD in existing designs?

A: Yes. Both parts share identical nominal zener voltage (5.6 V), maximum power rating (500 mW), impedance characteristics, and package specifications (SOD-80). The substitute part features tighter voltage tolerance (±1% versus ±5%), which is compatible with applications designed for the main part.

Q: What is the significance of the tolerance difference between these parts?

A: The CLL5232B BK TIN/LEAD has ±5% voltage tolerance, while the CLL5232D BK TIN/LEAD has ±1% tolerance. This means the substitute part maintains zener voltage within a narrower range around the 5.6 V nominal specification. Applications requiring tighter voltage regulation benefit from the substitute part's improved tolerance.

Q: Are the package dimensions identical between these parts?

A: Yes. Both parts use the SOD-80 package designation, also referenced as DO-213AC and MINI-MELF. Physical dimensions and PCB footprints are identical, enabling direct substitution without layout modifications.

Q: Do these parts have different operating temperature ranges?

A: No. Both the CLL5232B BK TIN/LEAD and CLL5232D BK TIN/LEAD operate across the identical temperature range of -65°C to 200°C (junction temperature).

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both parts share identical RoHS status (non-compliant), REACH status (unaffected), ECCN classification (EAR99), and HTSUS code (8541.10.0050).

Q: What are the reverse leakage characteristics of these zener diodes?

A: Both parts exhibit identical reverse leakage current of 5 µA measured at 3 V reverse bias, ensuring consistent leakage performance in circuit applications.

Q: Is the forward voltage characteristic the same for both parts?

A: Yes. Both the CLL5232B BK TIN/LEAD and CLL5232D BK TIN/LEAD have a maximum forward voltage of 1.25 V at 200 mA forward current.

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