BZX284-B13,115 Equivalent & Substitute Parts

Part Overview

The BZX284-B13,115 is a Zener diode rated at 13 V with 400 mW power dissipation in SOD-110 surface mount packaging, manufactured by NXP USA Inc. This component is classified as obsolete, making identification of suitable substitutes necessary for ongoing design support and procurement continuity. The part maintains ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), supporting applications requiring stable voltage regulation in compact form factors.

Key Parameters

Parameter	Value
Voltage - Zener (Nom)	13 V
Tolerance	±2%
Power - Max	400 mW
Impedance (Max)	10 Ohms
Current - Reverse Leakage @ Vr	100 nA @ 8 V
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 100 mA
Operating Temperature Range	-65°C ~ 150°C
Mounting Type	Surface Mount
Package / Case	SOD-110
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the BZX284-B13,115 is determined by the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

Zener voltage rating: 13 V nominal
Voltage tolerance: ±2%
Reverse leakage current: 100 nA @ 8 V
Forward voltage: 1.1 V @ 100 mA
Operating temperature range: -65°C ~ 150°C

Mechanical Compatibility Criteria:

Surface mount technology
RoHS3 compliance
MSL 1 rating

Power Dissipation Consideration: The BZX284-B13,115 specifies 400 mW maximum power. Substitute parts must maintain electrical performance within the specified parameters. Reduced power ratings in alternative packages may be acceptable depending on circuit thermal design requirements.

The BZX384-B13,115 qualifies as a manufacturer-recommended substitute, maintaining identical electrical specifications while offering an alternative package form factor (SOD-323) with active product status.

Parameter Comparison

Parameter	BZX284-B13,115	BZX384-B13,115	Match Status
Voltage - Zener (Nom)	13 V	13 V	Identical
Tolerance	±2%	±2%	Identical
Power - Max	400 mW	300 mW	Reduced
Impedance (Max)	10 Ohms	30 Ohms	Increased
Current - Reverse Leakage @ Vr	100 nA @ 8 V	100 nA @ 8 V	Identical
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 100 mA	1.1 V @ 100 mA	Identical
Operating Temperature Range	-65°C ~ 150°C	-65°C ~ 150°C	Identical
Mounting Type	Surface Mount	Surface Mount	Identical
Package / Case	SOD-110	SOD-323	Different
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Identical
Product Status	Obsolete	Active	Improved

Engineering Selection Recommendations

The BZX384-B13,115 is the manufacturer-recommended substitute for the obsolete BZX284-B13,115. Selection of this alternative is supported by the following factors:

Compliance & Availability: The BZX384-B13,115 maintains active product status with 18,337 units in stock, compared to the obsolete BZX284-B13,115. Both parts are ROHS3 compliant and carry MSL 1 ratings, ensuring regulatory and environmental compatibility.

Electrical Performance: Core electrical specifications are identical: 13 V nominal zener voltage at ±2% tolerance, 100 nA reverse leakage current, and 1.1 V forward voltage. Operating temperature range remains -65°C ~ 150°C for both parts.

Package Transition: The substitute transitions from SOD-110 to SOD-323 packaging. This change requires PCB layout modification but provides a smaller footprint. The SOD-323 package is widely supported in modern manufacturing environments.

Power Dissipation Variance: The BZX384-B13,115 specifies 300 mW maximum power versus 400 mW for the original part. Circuit thermal analysis is required to confirm this reduction is acceptable for the intended application. Impedance increases from 10 Ohms to 30 Ohms, which may affect voltage regulation characteristics under dynamic load conditions.

Frequently Asked Questions (FAQ)

Q: Can the BZX384-B13,115 directly replace the BZX284-B13,115 without circuit modification?

A: Electrical substitution is valid based on identical zener voltage, tolerance, leakage current, and forward voltage specifications. However, PCB layout modification is required due to package change from SOD-110 to SOD-323. Thermal analysis is necessary to confirm the 300 mW power rating is sufficient for your application.

Q: What is the significance of the impedance increase from 10 Ohms to 30 Ohms?

A: Impedance affects voltage regulation under transient load conditions. The higher impedance of the BZX384-B13,115 may result in greater voltage ripple. Verify this parameter against your circuit's voltage regulation requirements before selection.

Q: Are both parts RoHS compliant?

A: Yes. Both the BZX284-B13,115 and BZX384-B13,115 are ROHS3 compliant with MSL 1 (unlimited) moisture sensitivity ratings.

Q: Why is the BZX284-B13,115 marked as obsolete?

A: Product obsolescence is determined by the manufacturer. The BZX384-B13,115 represents the active alternative in the product line, offering equivalent electrical performance in a modern package format.

Q: What are the package dimensions differences between SOD-110 and SOD-323?

A: SOD-323 is a smaller surface mount package compared to SOD-110. Specific dimensional data must be obtained from manufacturer datasheets to assess PCB layout compatibility.

Q: Is the 100 mW power reduction critical for my application?

A: Power dissipation requirements depend on your circuit's operating conditions. Calculate expected power dissipation in your application and compare against the 300 mW rating. If your design requires sustained power dissipation above 300 mW, alternative parts with higher power ratings must be evaluated.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message