BZX84J-B13,115 Equivalent & Substitute Parts

Part Overview

The BZX84J-B13,115 is a 13 V Zener diode manufactured by Nexperia USA Inc., rated for 550 mW power dissipation in a surface mount SOD-323F package. This component is classified as Active product status and carries AEC-Q101 automotive qualification. Zener diodes of this specification are used in voltage regulation, overvoltage protection, and reference voltage circuits. Alternative equivalent parts may be required due to inventory constraints, packaging preferences, or application-specific thermal and tolerance requirements.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nominal)	13	V
Power - Maximum	550	mW
Tolerance	±2%	—
Impedance (Maximum)	10	Ohms
Current - Reverse Leakage @ Vr	100	nA @ 8 V
Voltage - Forward (Maximum) @ If	1.1	V @ 100 mA
Operating Temperature Range	-65 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	SOD-323F	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the BZX84J-B13,115 is determined by the following critical parameters:

Primary Matching Criteria:

Zener voltage: 13 V nominal
Operating temperature range: -65°C to 150°C
Surface mount technology
RoHS3 compliance
Moisture sensitivity level 1

Secondary Compatibility Factors:

Power dissipation rating (550 mW primary specification)
Impedance characteristics
Reverse leakage current specifications
Forward voltage characteristics
Package form factor (SOD-323F preferred; SOD-323 and SOD-523 acceptable with mechanical verification)

Substitute parts are grouped by power rating capability and package type. Parts with lower power ratings (100 mW to 300 mW) are suitable for applications where thermal dissipation requirements are reduced. Parts with identical or higher power ratings maintain full functional equivalence. Package variants (SOD-323, SOD-323F, SOD-523) require PCB layout verification for mechanical compatibility.

Parameter Comparison

Parameter	BZX84J-B13,115	BZT52C13S-TP	BZT52C13T-7	BZT52C13T-TP	DDZ9700T-7	MM3Z13VB	MM3Z13VC
Manufacturer	Nexperia USA Inc.	Micro Commercial Co	Diodes Incorporated	Micro Commercial Co	Diodes Incorporated	onsemi	onsemi
Voltage - Zener (Nom)	13 V	13 V	13 V	13 V	13 V	13 V	13 V
Tolerance	±2%	±6%	±6%	±5%	±5%	±2%	±5%
Power - Max	550 mW	200 mW	300 mW	100 mW	150 mW	200 mW	200 mW
Impedance (Max)	10 Ohms	30 Ohms	30 Ohms	30 Ohms	—	28 Ohms	28 Ohms
Current - Reverse Leakage @ Vr	100 nA @ 8 V	100 nA @ 8 V	100 nA @ 8 V	100 nA @ 8 V	50 nA @ 9.8 V	900 nA @ 8 V	900 nA @ 8 V
Voltage - Forward (Max) @ If	1.1 V @ 100 mA	900 mV @ 10 mA	900 mV @ 10 mA	900 mV @ 10 mA	900 mV @ 10 mA	1 V @ 10 mA	1 V @ 10 mA
Operating Temperature	-65 to 150°C	-65 to 150°C	-65 to 150°C	-65 to 150°C	-65 to 150°C	-65 to 150°C	-65 to 150°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	SOD-323F	SOD-323	SOD-523	SOD-523	SOD-523	SOD-323F	SOD-323F
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts listed maintain Active product status and ROHS3 compliance, ensuring long-term availability and regulatory conformance. Selection among substitutes is determined by application-specific power dissipation requirements and package constraints.

For applications requiring maximum power handling (550 mW): The BZX84J-B13,115 is the sole option within this substitute group. No alternative provides equivalent 550 mW rating.

For applications with reduced power dissipation requirements (≤300 mW): BZT52C13T-7 (300 mW, SOD-523) provides the closest thermal capability. This part maintains ±6% tolerance and is suitable for moderate power applications.

For applications with minimal power dissipation (≤200 mW): BZT52C13S-TP, MM3Z13VB, and MM3Z13VC are functionally equivalent at 200 mW. MM3Z13VB offers ±2% tolerance matching the primary part. BZT52C13S-TP operates in SOD-323 package; MM3Z13VB and MM3Z13VC operate in SOD-323F package (identical to primary part).

For applications with very low power dissipation (≤150 mW): DDZ9700T-7 (150 mW) and BZT52C13T-TP (100 mW) are suitable. DDZ9700T-7 exhibits lower reverse leakage (50 nA @ 9.8 V) compared to the primary part.

Package considerations: SOD-323F package (BZX84J-B13,115, MM3Z13VB, MM3Z13VC) is mechanically identical. SOD-323 (BZT52C13S-TP) and SOD-523 (BZT52C13T-7, BZT52C13T-TP, DDZ9700T-7) require PCB footprint verification before substitution.

Tolerance selection: For applications requiring ±2% tolerance, select BZX84J-B13,115 or MM3Z13VB. For applications tolerating ±5% or ±6%, all other substitutes are acceptable.

Frequently Asked Questions (FAQ)

Q: Can BZT52C13T-7 (300 mW) replace BZX84J-B13,115 (550 mW) in all applications?

A: No. BZT52C13T-7 is suitable only for applications where power dissipation does not exceed 300 mW. Applications requiring thermal dissipation above 300 mW must use the primary part or verify that actual operating power remains within the substitute's rating.

Q: What is the difference between MM3Z13VB and MM3Z13VC?

A: Both parts are identical in electrical specifications (13 V, 200 mW, ±2% and ±5% tolerance respectively, SOD-323F package). The difference is packaging: MM3Z13VB is supplied in Tape & Reel; MM3Z13VC is supplied in Cut Tape & Digi-Reel. Electrical performance is equivalent.

Q: Can I use DDZ9700T-7 in place of BZX84J-B13,115?

A: DDZ9700T-7 is suitable for applications where power dissipation does not exceed 150 mW. The part operates in SOD-523 package (different from SOD-323F), requiring PCB layout verification. Reverse leakage is lower (50 nA @ 9.8 V vs. 100 nA @ 8 V), which may be advantageous in precision applications.

Q: Does tolerance affect substitution compatibility?

A: Tolerance affects circuit performance. The primary part (±2%) and MM3Z13VB (±2%) provide tighter voltage regulation. Substitutes with ±5% or ±6% tolerance introduce greater voltage variation. Select based on circuit requirements for voltage accuracy.

Q: Are all substitutes automotive-qualified?

A: The primary part BZX84J-B13,115 carries AEC-Q101 automotive qualification. Substitute parts do not list automotive qualification in provided specifications. Verify automotive requirements with component datasheets before use in automotive applications.

Q: What is the impact of different impedance values?

A: The primary part exhibits 10 Ohms impedance; most substitutes exhibit 28-30 Ohms. Higher impedance results in greater voltage variation under load current changes. For applications requiring stable voltage regulation under varying load conditions, the primary part's lower impedance is preferred.

Q: Can I substitute based on package type alone?

A: No. Package type is a mechanical consideration only. Electrical parameters (voltage, power rating, tolerance, impedance) must match application requirements. Package substitution (SOD-323F to SOD-523) requires PCB footprint redesign and thermal analysis.

Q: Which substitute offers the best reverse leakage performance?

A: DDZ9700T-7 exhibits the lowest reverse leakage at 50 nA @ 9.8 V. The primary part and BZT52C13 series exhibit 100 nA @ 8 V. MM3Z13VB and MM3Z13VC exhibit 900 nA @ 8 V. Lower leakage is beneficial in precision reference circuits and high-impedance applications.

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