BZX384B5V6-G3-08 Equivalent & Substitute Parts

Part Overview

The BZX384B5V6-G3-08 is a Zener diode rated at 5.6 V with 200 mW power dissipation in a surface mount SOD-323 package. Manufactured by Vishay General Semiconductor - Diodes Division, this component is classified as Active and complies with ROHS3 standards. Substitute parts are necessary to address inventory availability, packaging format requirements (Tape & Reel versus Cut Tape), automotive qualification needs, or alternative manufacturer sourcing for supply chain resilience.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nominal)	5.6	V
Tolerance	±2%	—
Power - Maximum	200	mW
Impedance (Maximum)	40	Ohms
Current - Reverse Leakage @ Vr	1	µA @ 2 V
Operating Temperature Range	-55 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	SC-76, SOD-323	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the BZX384B5V6-G3-08 is determined by the following critical parameters:

Primary Substitution Criteria:

Voltage - Zener (Nominal): 5.6 V
Tolerance: ±2% (or tighter)
Power - Maximum: 200 mW or greater
Impedance (Maximum): 40 Ohms or less
Current - Reverse Leakage @ Vr: 1 µA @ 2 V or lower
Operating Temperature Range: -55°C to 150°C minimum
Package / Case: SC-76, SOD-323
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant

Secondary Considerations:

Packaging format (Tape & Reel versus Cut Tape)
Automotive qualification (AEC-Q101) for specific applications
Manufacturer source diversity

Parts are grouped into three categories: Parametric Equivalents (Vishay variants with identical electrical specifications), Manufacturer Recommended Equivalents (alternative manufacturers meeting or exceeding specifications), and Automotive-Qualified Variants (AEC-Q101 certified for automotive applications).

Parameter Comparison

Part Number	Manufacturer	Vz (V)	Tolerance	Power (mW)	Zzt (Ohms)	Ir @ Vr (µA)	Temp Range (°C)	Packaging	AEC-Q101
BZX384B5V6-G3-08	Vishay	5.6	±2%	200	40	1 @ 2 V	-55 to 150	Tape & Reel	—
BZX384B5V6-E3-08	Vishay	5.6	±2%	200	40	1 @ 2 V	-55 to 150	Tape & Reel	—
BZX384B5V6-E3-18	Vishay	5.6	±2%	200	40	1 @ 2 V	-55 to 150	Cut Tape	—
BZX384B5V6-HE3-08	Vishay	5.6	±2%	200	40	1 @ 2 V	-55 to 150	Tape & Reel	AEC-Q101
BZX384B5V6-HE3-18	Vishay	5.6	±2%	200	40	1 @ 2 V	-55 to 150	Cut Tape	AEC-Q101
DDZ9690S-7	Diodes Incorporated	5.6	±5%	200	—	2 @ 4 V	-65 to 150	Tape & Reel	—
PZU5.6B2A,115	Nexperia USA Inc.	5.6	±2%	320	40	1 @ 2.5 V	-55 to 150	Tape & Reel	—
SZMM3Z5V6ST1G	onsemi	5.6	±2%	300	40	1 @ 2 V	-65 to 150	Cut Tape & Digi-Reel	AEC-Q101

Engineering Selection Recommendations

Parametric Equivalents (Vishay BZX384B5V6 Series): BZX384B5V6-E3-08, BZX384B5V6-E3-18, BZX384B5V6-HE3-08, and BZX384B5V6-HE3-18 are direct parametric equivalents with identical electrical specifications. Selection between these variants depends on packaging format requirements: Tape & Reel (E3-08, HE3-08) for automated assembly or Cut Tape (E3-18, HE3-18) for lower-volume applications. The HE3 variants include AEC-Q101 automotive qualification and are suitable for automotive applications.

Manufacturer Recommended Equivalents: DDZ9690S-7 (Diodes Incorporated) meets the 5.6 V nominal voltage and 200 mW power rating. However, it specifies ±5% tolerance versus the ±2% of the main part, and reverse leakage is rated at 2 µA @ 4 V compared to 1 µA @ 2 V. This part is suitable for applications where tighter tolerance and lower leakage are not critical requirements.

PZU5.6B2A,115 (Nexperia USA Inc.) provides 320 mW power dissipation, exceeding the 200 mW specification. It maintains ±2% tolerance and 40 Ohms impedance. This part is suitable for applications requiring higher power margin or thermal headroom.

SZMM3Z5V6ST1G (onsemi) provides 300 mW power dissipation with ±2% tolerance, 40 Ohms impedance, and AEC-Q101 automotive qualification. Operating temperature extends to -65°C, providing enhanced low-temperature performance. This part is suitable for automotive applications requiring higher power dissipation capability.

Selection Criteria:

Standard industrial applications: BZX384B5V6-E3-08 or BZX384B5V6-E3-18
Automotive applications: BZX384B5V6-HE3-08, BZX384B5V6-HE3-18, or SZMM3Z5V6ST1G
Higher power margin required: PZU5.6B2A,115 or SZMM3Z5V6ST1G
Alternative manufacturer sourcing: DDZ9690S-7, PZU5.6B2A,115, or SZMM3Z5V6ST1G

Frequently Asked Questions (FAQ)

Q: Can BZX384B5V6-E3-08 be used as a direct replacement for BZX384B5V6-G3-08? A: Yes. Both parts share identical electrical specifications: 5.6 V nominal voltage, ±2% tolerance, 200 mW power rating, 40 Ohms impedance, and 1 µA reverse leakage. The difference is in packaging format designation. Both are supplied in Tape & Reel format suitable for automated assembly.

Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) packaging? A: Tape & Reel packaging supplies components on continuous carrier tape wound on reels, optimized for high-volume automated assembly. Cut Tape packaging supplies components on cut segments of carrier tape, suitable for lower-volume applications or manual assembly. Electrical performance is identical; the difference is logistical.

Q: Can I use BZX384B5V6-HE3-08 in place of BZX384B5V6-G3-08? A: Yes. The HE3 variant is electrically identical and includes AEC-Q101 automotive qualification. It is suitable for both standard industrial and automotive applications. Use this variant if automotive-grade reliability is required or if supply chain sourcing favors this part.

Q: Why does DDZ9690S-7 specify ±5% tolerance instead of ±2%? A: DDZ9690S-7 is manufactured by Diodes Incorporated and follows that manufacturer's specification. The ±5% tolerance is wider than the ±2% of the Vishay part. This part is suitable for applications where voltage regulation tolerance of ±5% is acceptable. For applications requiring tighter tolerance control, use Vishay or Nexperia variants.

Q: Is PZU5.6B2A,115 a suitable substitute if my application requires higher power dissipation? A: Yes. PZU5.6B2A,115 is rated at 320 mW versus 200 mW for the main part, providing 60% additional power margin. It maintains ±2% tolerance and 40 Ohms impedance. This part is suitable for applications where thermal margin or higher power dissipation capability is beneficial.

Q: What is the advantage of SZMM3Z5V6ST1G over other substitutes? A: SZMM3Z5V6ST1G offers three advantages: 300 mW power rating (50% higher than the main part), AEC-Q101 automotive qualification, and extended low-temperature operation to -65°C. It is the optimal choice for automotive applications requiring higher power dissipation or enhanced thermal performance.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All substitute parts listed are ROHS3 compliant and REACH unaffected, matching the environmental compliance of the main part.

Q: Can I mix packaging formats in the same assembly? A: Packaging format (Tape & Reel versus Cut Tape) affects supply chain logistics and assembly process compatibility, not electrical performance. However, assembly equipment must be configured for the specific packaging format. Consult your assembly partner regarding format compatibility with your production line.

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