BZX584B18-TP Equivalent & Substitute Parts

Part Overview

The BZX584B18-TP is an 18 V, 150 mW Zener diode manufactured by Micro Commercial Co in SOD-523 surface mount packaging. This component is classified as an active product and is RoHS3 compliant. Zener diodes of this specification are used in voltage regulation, overvoltage protection, and reference voltage applications in electronic circuits. Substitute parts become necessary due to inventory availability, supply chain considerations, or specific manufacturing certifications required for particular applications.

Substiute Parts

BZX584B18-TP

Micro Commercial CoIn Stock: 1081BZX584B18-TP Datasheet

Current PartRFQ

BZX584B18HE3-TP

Micro Commercial CoIn Stock: 6699BZX584B18HE3-TP Datasheet

Parametric EquivalentRFQ

BZX584B18

Good-Ark SemiconductorIn Stock: 7128BZX584B18 Datasheet

Parametric EquivalentRFQ

BZX584B18 RSG

Taiwan Semiconductor CorporationIn Stock: 104867BZX584B18 RSG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BZX584B18-TP is determined by strict equivalence across the following critical parameters:

• Voltage - Zener (Nominal): 18 V
• Power - Maximum: 150 mW
• Tolerance: ±2%
• Impedance (Maximum): 45 Ohms
• Current - Reverse Leakage @ Vr: 100 nA @ 12.6 V
• Voltage - Forward (Maximum) @ If: 900 mV @ 10 mA
• Operating Temperature Range: -55°C to 150°C (TJ)
• Package / Case: SC-79, SOD-523
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

All substitute parts listed maintain identical electrical characteristics and environmental compliance specifications. Variations in packaging format (Tape & Reel versus Cut Tape & Digi-Reel) and manufacturer certifications (such as AEC-Q101 automotive qualification) do not affect parametric equivalence but may influence selection based on application requirements.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts are active products with ROHS3 compliance and identical electrical specifications. Selection among these equivalents is based on the following factors:

BZX584B18HE3-TP carries AEC-Q101 automotive qualification, making it suitable for applications requiring automotive-grade component certification. This part is supplied in Tape & Reel packaging.

BZX584B18 (Good-Ark Semiconductor) is supplied in Cut Tape and Digi-Reel format, offering flexibility for both automated assembly and manual component handling.

BZX584B18 RSG (Taiwan Semiconductor Corporation) is supplied in Cut Tape and Digi-Reel format with the highest inventory availability (104,764 pieces), supporting high-volume production requirements.

The original BZX584B18-TP is supplied in Tape & Reel format by Micro Commercial Co with standard-grade classification.

All parts maintain identical electrical performance, environmental compliance, and thermal operating range. Packaging format and inventory availability are the primary differentiators for component selection.

Frequently Asked Questions (FAQ)

Q: Can BZX584B18 (Good-Ark Semiconductor) be used as a direct replacement for BZX584B18-TP?

A: Yes. Both parts are parametrically equivalent with identical Zener voltage (18 V), power rating (150 mW), tolerance (±2%), impedance (45 Ohms), and operating temperature range (-55°C to 150°C). The primary difference is packaging format: the original uses Tape & Reel, while the substitute uses Cut Tape & Digi-Reel.

Q: What is the difference between BZX584B18HE3-TP and BZX584B18-TP?

A: Both parts are electrically identical. BZX584B18HE3-TP carries AEC-Q101 automotive qualification, indicating it meets automotive industry reliability standards. Both are supplied in Tape & Reel packaging. Selection depends on whether automotive-grade certification is required for the application.

Q: Is BZX584B18 RSG suitable for high-volume production?

A: Yes. BZX584B18 RSG maintains all electrical and environmental specifications of the original part and has significantly higher inventory availability (104,764 pieces). It is supplied in Cut Tape & Digi-Reel format.

Q: Do all substitute parts have the same moisture sensitivity level?

A: Yes. All listed parts, including the original BZX584B18-TP, have Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Are there any differences in forward voltage characteristics between the substitutes?

A: BZX584B18 RSG does not specify forward voltage in the provided data. BZX584B18-TP, BZX584B18HE3-TP, and BZX584B18 all specify 900 mV maximum forward voltage at 10 mA. For applications where forward voltage is critical, confirm specifications with the manufacturer.

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes, provided the PCB design accommodates the packaging format. Tape & Reel packaged parts (BZX584B18-TP and BZX584B18HE3-TP) are optimized for automated pick-and-place assembly. Cut Tape & Digi-Reel packaged parts (BZX584B18 and BZX584B18 RSG) support both automated and manual assembly processes. All use identical SOD-523 package footprints.