BZX284-C5V6,115 Equivalent & Substitute Parts

Part Overview

The BZX284-C5V6,115 is a Zener diode manufactured by NXP USA Inc., rated at 5.6 V nominal voltage with 400 mW maximum power dissipation in SOD-110 surface mount packaging. This component is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production requirements. The part maintains ROHS3 compliance and unlimited moisture sensitivity rating, making it suitable for industrial and commercial applications across the specified operating temperature range of -65°C to 150°C.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	5.6	V
Tolerance	±5%	-
Power - Max	400	mW
Impedance (Max)	40	Ohms
Current - Reverse Leakage @ Vr	1	µA @ 2 V
Voltage - Forward (Vf) (Max) @ If	1.1	V @ 100 mA
Operating Temperature	-65 to 150	°C
Mounting Type	Surface Mount	-
Package / Case	SOD-110	-
RoHS Status	ROHS3 Compliant	-
MSL Rating	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitution of the BZX284-C5V6,115 is determined by the following critical parameters:

Electrical Equivalence Criteria:

Zener voltage: 5.6 V nominal (primary functional requirement)
Reverse leakage current: 1 µA @ 2 V (performance specification)
Forward voltage: 1.1 V @ 100 mA (operational characteristic)
Impedance: 40 Ohms maximum (dynamic performance)
Operating temperature range: -65°C to 150°C (environmental compatibility)

Mechanical & Compliance Criteria:

Surface mount technology (assembly compatibility)
ROHS3 compliance (regulatory requirement)
MSL 1 rating (moisture sensitivity)

The BZX384-B5V6,115 qualifies as a direct substitute based on matching electrical specifications and compliance requirements. While the substitute features reduced maximum power rating (300 mW versus 400 mW) and improved voltage tolerance (±2% versus ±5%), it maintains all critical electrical parameters and operates within the same temperature range. The package transition from SOD-110 to SOD-323 represents a mechanical change requiring PCB layout modification.

Parameter Comparison

Parameter	BZX284-C5V6,115	BZX384-B5V6,115	Match Status
Voltage - Zener (Nom)	5.6 V	5.6 V	Identical
Tolerance	±5%	±2%	Substitute Tighter
Power - Max	400 mW	300 mW	Substitute Lower
Impedance (Max)	40 Ohms	40 Ohms	Identical
Current - Reverse Leakage @ Vr	1 µA @ 2 V	1 µA @ 2 V	Identical
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 100 mA	1.1 V @ 100 mA	Identical
Operating Temperature	-65 to 150°C	-65 to 150°C	Identical
Mounting Type	Surface Mount	Surface Mount	Identical
Package / Case	SOD-110	SOD-323	Different
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
MSL Rating	1 (Unlimited)	1 (Unlimited)	Identical
Product Status	Obsolete	Active	Substitute Active

Engineering Selection Recommendations

The BZX384-B5V6,115 is the designated manufacturer-recommended substitute for the obsolete BZX284-C5V6,115. Selection of this substitute is supported by the following factors:

Compliance & Availability: The substitute maintains ROHS3 compliance and MSL 1 rating, ensuring regulatory alignment with the original part. The active product status of BZX384-B5V6,115 provides assured long-term availability and supply chain continuity, addressing the obsolescence of the original BZX284-C5V6,115.

Electrical Performance: All critical electrical parameters match the original specification: 5.6 V zener voltage, 1 µA reverse leakage current, 1.1 V forward voltage, and 40 Ohms impedance. The substitute's tighter voltage tolerance (±2%) provides improved performance relative to the original ±5% specification.

Power Rating Consideration: The reduced maximum power rating (300 mW versus 400 mW) requires circuit-level evaluation. Applications operating the original part below 300 mW dissipation experience no functional impact. Designs requiring the full 400 mW capability must be reassessed or alternative solutions identified.

Package Transition: The shift from SOD-110 to SOD-323 packaging necessitates PCB layout modification. Both packages are standard surface mount formats with established manufacturing processes. Design teams must update footprints and verify placement compatibility with existing assembly equipment.

Frequently Asked Questions (FAQ)

Q: Can BZX384-B5V6,115 directly replace BZX284-C5V6,115 without circuit modification?

A: Electrical substitution is valid for applications where power dissipation remains below 300 mW. PCB layout modification is required due to package change from SOD-110 to SOD-323. No circuit schematic changes are necessary if power requirements are within the substitute's rating.

Q: What is the impact of the ±2% tolerance on BZX384-B5V6,115 versus ±5% on BZX284-C5V6,115?

A: The tighter tolerance represents improved manufacturing precision. Circuits designed for ±5% tolerance operation experience enhanced performance with ±2% tolerance components. No negative impact occurs; only improved voltage regulation characteristics result.

Q: Are there applications where BZX384-B5V6,115 cannot substitute for BZX284-C5V6,115?

A: Applications requiring sustained power dissipation above 300 mW cannot use the substitute without thermal management modifications. Verify actual power dissipation in your circuit before substitution.

Q: What are the physical differences between SOD-110 and SOD-323 packages?

A: SOD-323 is a smaller surface mount package than SOD-110. Both are standard industry formats. PCB footprint redesign is required; assembly process compatibility depends on equipment specifications.

Q: Does the substitute maintain the same operating temperature range?

A: Yes. Both parts operate across -65°C to 150°C. No thermal performance differences exist between the original and substitute.

Q: Are both parts ROHS3 compliant?

A: Yes. BZX284-C5V6,115 and BZX384-B5V6,115 both maintain ROHS3 compliance and MSL 1 rating, ensuring regulatory alignment for industrial and commercial applications.

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