BZX384-C68,115 Equivalent & Substitute Parts

Part Overview

The BZX384-C68,115 is a Zener diode manufactured by Nexperia USA Inc., rated for 68 V nominal Zener voltage with 300 mW maximum power dissipation in a surface mount SOD-323 package. This component is classified as Active and is ROHS3 compliant. Substitute parts are necessary when the primary part number becomes unavailable, when alternative tolerance specifications are required, or when sourcing from multiple manufacturers is required for supply chain resilience.

Substiute Parts

BZX384-C68,115

Nexperia USA Inc.In Stock: 2946BZX384-C68,115 Datasheet

Current PartRFQ

BZX384-B68,115

Nexperia USA Inc.In Stock: 7047BZX384-B68,115 Datasheet

Parametric EquivalentRFQ

BZX384-B68F

Nexperia USA Inc.In Stock: 10853BZX384-B68F Datasheet

Parametric EquivalentRFQ

BZX384-B68Z

Nexperia USA Inc.In Stock: 30837BZX384-B68Z Datasheet

Parametric EquivalentRFQ

MM3Z68VT1G

onsemiIn Stock: 4332MM3Z68VT1G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BZX384-C68,115 is determined by the following critical parameters:

Primary Substitution Criteria:

• Voltage - Zener (Nom): 68 V (exact match required)
• Power - Max: 300 mW (exact match required)
• Package / Case: SOD-323 (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Operating Temperature Range: -65°C to 150°C (exact match required)

Secondary Substitution Criteria:

• Tolerance: ±5% or tighter (±2% acceptable as improvement)
• Impedance (Max): 240 Ohms (exact match required)
• Current - Reverse Leakage @ Vr: 50 nA @ 47.6 V (exact match required)
• Voltage - Forward (Max) @ If: 1.1 V @ 100 mA (exact match required)

Substitute parts are grouped into two categories:

Parametric Equivalents: Parts that match all critical parameters with equal or superior tolerance specifications. These include BZX384-B68,115, BZX384-B68F, and BZX384-B68Z, all manufactured by Nexperia USA Inc. within the BZX384 series.

Similar Equivalents: Parts that match all critical parameters but originate from different manufacturers or have different tolerance specifications. The MM3Z68VT1G from onsemi is classified as a similar equivalent with ±6% tolerance and Obsolete product status.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Nexperia BZX384 Series):

BZX384-B68,115, BZX384-B68F, and BZX384-B68Z are direct parametric equivalents manufactured by Nexperia USA Inc. All three parts are Active products with ROHS3 compliance and MSL 1 rating. The primary distinction among these three parts is tolerance specification: BZX384-B68,115, BZX384-B68F, and BZX384-B68Z all feature ±2% tolerance, which is superior to the ±5% tolerance of the BZX384-C68,115. These parts are suitable for applications where tighter voltage regulation is required.

Secondary Substitute (Cross-Manufacturer):

The MM3Z68VT1G from onsemi is a similar equivalent with identical electrical parameters except for forward voltage specification (900 mV @ 10 mA versus 1.1 V @ 100 mA) and tolerance (±6% versus ±5%). This part carries Obsolete product status, indicating it is no longer in active production. ROHS3 compliance and MSL 1 rating are maintained.

Selection Priority:

For new designs and ongoing production, BZX384-B68Z is recommended as the primary substitute due to highest inventory availability (30,755 pcs) and Active product status. BZX384-B68F and BZX384-B68,115 are secondary options with lower inventory levels but equivalent electrical performance. The MM3Z68VT1G should be used only when Nexperia parts are unavailable, given its Obsolete status.

Frequently Asked Questions (FAQ)

Q: Can BZX384-B68,115 replace BZX384-C68,115 in existing designs?

A: Yes. BZX384-B68,115 is a parametric equivalent with identical electrical specifications except for superior ±2% tolerance compared to ±5%. All critical parameters including voltage, power rating, impedance, leakage current, forward voltage, operating temperature, and SOD-323 package are identical.

Q: What is the difference between BZX384-B68F and BZX384-B68Z?

A: Both parts are parametric equivalents with identical electrical specifications. The difference is in packaging designation and inventory availability. BZX384-B68Z has significantly higher inventory (30,755 pcs) compared to BZX384-B68F (10,812 pcs).

Q: Is MM3Z68VT1G suitable for new production?

A: MM3Z68VT1G is classified as Obsolete and should not be selected for new production designs. It is suitable only as a temporary substitute when Active alternatives are unavailable. The forward voltage specification differs (900 mV @ 10 mA versus 1.1 V @ 100 mA), which may affect circuit performance in applications sensitive to forward voltage characteristics.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (BZX384-B68,115, BZX384-B68F, BZX384-B68Z, and MM3Z68VT1G) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: Can I use a substitute part with ±2% tolerance in place of ±5% tolerance?

A: Yes. Parts with ±2% tolerance (BZX384-B68,115, BZX384-B68F, BZX384-B68Z) provide tighter voltage regulation than the original ±5% specification and are fully compatible. This represents an improvement in voltage accuracy.

Q: Are all substitute parts available in Tape & Reel packaging?

A: BZX384-B68,115, BZX384-B68F, and BZX384-B68Z are all available in Tape & Reel (TR) packaging. MM3Z68VT1G packaging designation is not specified in available data.

Q: What is the difference in forward voltage between BZX384-C68,115 and MM3Z68VT1G?

A: BZX384-C68,115 specifies 1.1 V maximum forward voltage at 100 mA. MM3Z68VT1G specifies 900 mV maximum forward voltage at 10 mA. These measurements are taken at different current levels and cannot be directly compared. Applications requiring specific forward voltage characteristics should reference detailed datasheets.