BZX84J-B7V5,115 Equivalent & Substitute Parts

Part Overview

The BZX84J-B7V5,115 is a 7.5 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 with AEC-Q101 automotive qualification. The device operates across a temperature range of -65°C to 150°C and maintains ±2% voltage tolerance.

Equivalent and substitute parts are identified when design requirements permit variations in power rating, package form factor, or tolerance specifications while maintaining the core 7.5 V Zener voltage specification and surface mount mounting type.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	7.5	V
Power - Max	550	mW
Tolerance	±2%	—
Impedance (Max)	10	Ohms
Voltage - Forward (Max) @ If	1.1 V @ 100 mA	—
Operating Temperature	-65 to 150	°C
Package / Case	SOD-323F	—
Mounting Type	Surface Mount	—
Grade	Automotive	—
Qualification	AEC-Q101	—

Substitute Part Grouping Explanation

Substitution of the BZX84J-B7V5,115 is determined by the following critical parameters:

Mandatory Matching Criteria:

Voltage - Zener (Nom): 7.5 V (exact match required)
Mounting Type: Surface Mount
Operating Temperature Range: -65°C to 150°C minimum

Allowable Variation Parameters:

Power - Max: Substitutes may have lower power ratings (100 mW to 500 mW) for applications with reduced power dissipation requirements
Package / Case: SOD-323F (primary), SOD-323, or SOD-523 (alternative form factors with equivalent electrical performance)
Tolerance: ±2% to ±6% (wider tolerances acceptable in non-critical applications)
Impedance (Max): 6 to 15 Ohms (minor variations acceptable)

All substitute parts listed maintain Active product status, ROHS3 compliance, and unlimited moisture sensitivity level (MSL 1).

Parameter Comparison

Part Number	Manufacturer	Vz (V)	Power (mW)	Tolerance	Package	Zzt (Ohms)	Temp Range (°C)	Inventory (Pcs)
BZX84J-B7V5,115	Nexperia USA Inc.	7.5	550	±2%	SOD-323F	10	-65 to 150	3247
BZT52C7V5S-TP	Micro Commercial Co	7.5	200	±5%	SOD-323	15	-65 to 150	2700
BZT52C7V5T-7	Diodes Incorporated	7.5	300	±6%	SOD-523	15	-65 to 150	150100
BZT52C7V5T-TP	Micro Commercial Co	7.5	100	±5%	SOD-523	15	-65 to 150	8572
DDZ9693T-7	Diodes Incorporated	7.5	150	±5%	SOD-523	—	-65 to 150	1610
MM3Z7V5B	onsemi	7.5	200	±2%	SOD-323F	14	-65 to 150	125100
MM3Z7V5C	onsemi	7.5	200	±5%	SOD-323F	14	-65 to 150	1328
MM5Z7V5T1G	onsemi	7.5	500	±6%	SOD-523	15	-65 to 150	38300
MMXZ5236B-TP	Micro Commercial Co	7.5	200	±5%	SOD-323	6	-55 to 150	7107

Engineering Selection Recommendations

Direct Substitutes (SOD-323F Package, ±2% Tolerance):

MM3Z7V5B is the primary equivalent for applications requiring identical package form factor and voltage tolerance. This onsemi device maintains SOD-323F packaging and ±2% tolerance specification, with 200 mW power rating suitable for lower-power applications. High inventory availability (125,100 pcs) supports production requirements.

Power-Matched Substitutes (550 mW or Higher):

MM5Z7V5T1G provides the closest power rating match at 500 mW in SOD-523 package. This onsemi device accommodates applications requiring sustained power dissipation near the original 550 mW specification. Tolerance widens to ±6%, and package transitions to SOD-523 form factor.

Reduced-Power Substitutes (200 mW Range):

BZT52C7V5S-TP, MM3Z7V5C, and MMXZ5236B-TP all provide 200 mW power ratings in SOD-323 or SOD-323F packages. These substitutes are applicable to designs with lower power dissipation requirements. BZT52C7V5S-TP and MMXZ5236B-TP use SOD-323 package, while MM3Z7V5C maintains SOD-323F compatibility.

Minimum-Power Substitutes (100-150 mW):

BZT52C7V5T-TP (100 mW) and DDZ9693T-7 (150 mW) serve applications with minimal power dissipation. Both use SOD-523 package and are suitable only when power requirements are confirmed below these ratings.

Compliance and Qualification:

All listed substitutes maintain ROHS3 compliance, unlimited moisture sensitivity level (MSL 1), and Active product status. The original BZX84J-B7V5,115 carries AEC-Q101 automotive qualification; substitute selection should verify automotive qualification requirements for specific applications.

Frequently Asked Questions (FAQ)

Q: Can BZT52C7V5S-TP replace BZX84J-B7V5,115 in all applications?

A: BZT52C7V5S-TP is a functional equivalent for the 7.5 V Zener voltage specification. However, power rating reduces from 550 mW to 200 mW, and tolerance widens from ±2% to ±5%. Substitution is valid only when circuit design confirms power dissipation does not exceed 200 mW and voltage tolerance of ±5% is acceptable.

Q: What is the difference between SOD-323F and SOD-523 packages?

A: SOD-323F and SOD-523 are distinct surface mount package form factors with different physical dimensions and land patterns. SOD-323F is smaller and more compact, while SOD-523 provides slightly larger dimensions. PCB layout and reflow profile compatibility must be verified before package substitution.

Q: Is MM3Z7V5B a direct replacement for BZX84J-B7V5,115?

A: MM3Z7V5B matches the 7.5 V Zener voltage, ±2% tolerance, and SOD-323F package of the original part. Power rating reduces from 550 mW to 200 mW. Direct replacement is valid when circuit power dissipation does not exceed 200 mW.

Q: Why do some substitutes have wider voltage tolerances?

A: Tolerance specifications reflect manufacturing process capabilities and cost optimization across different manufacturers. Wider tolerances (±5% to ±6%) are acceptable in applications where Zener voltage variation within these ranges does not affect circuit performance. Critical voltage regulation applications require ±2% tolerance parts.

Q: Can I use MM5Z7V5T1G as a direct substitute?

A: MM5Z7V5T1G provides 500 mW power rating, closely matching the original 550 mW specification. However, package transitions from SOD-323F to SOD-523, and tolerance widens to ±6%. Substitution requires PCB redesign for the new package footprint and acceptance of ±6% voltage tolerance.

Q: Are all substitute parts automotive-qualified?

A: The original BZX84J-B7V5,115 carries AEC-Q101 automotive qualification. Substitute parts listed do not explicitly state automotive qualification in provided specifications. Automotive applications must verify qualification status with manufacturers before substitution.

Q: What inventory considerations apply to substitute selection?

A: BZT52C7V5T-7 (150,100 pcs) and MM3Z7V5B (125,100 pcs) offer the highest inventory availability. Lower-inventory parts such as DDZ9693T-7 (1,610 pcs) and MM3Z7V5C (1,328 pcs) may present supply constraints for high-volume production.

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