BZX584B33-TP Equivalent & Substitute Parts

Part Overview

The BZX584B33-TP is a Zener diode manufactured by Micro Commercial Co, rated at 33 V nominal voltage with 150 mW maximum power dissipation. This component is designed for surface mount applications in SOD-523 packaging and is classified as an active product with full RoHS3 compliance. Zener diodes of this specification are used in voltage regulation, overvoltage protection, and reference circuits where precise voltage clamping is required. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the specified parameter range.

Substiute Parts

BZX584B33-TP
Micro Commercial CoIn Stock: 1239BZX584B33-TP Datasheet
BZX584B33-TP
Current Part
BZX584B33 RSG
Taiwan Semiconductor CorporationIn Stock: 9086BZX584B33 RSG Datasheet
BZX584B33 RSG
Parametric Equivalent

Key Parameters

Parameter Value Unit
Voltage - Zener (Nom) 33 V
Tolerance ±2% %
Power - Max 150 mW
Impedance (Max) 80 Ohms
Current - Reverse Leakage @ Vr 100 nA @ 23.1 V
Voltage - Forward (Vf) (Max) @ If 900 mV @ 10 mA
Operating Temperature Range -55 to 150 °C (TJ)
Mounting Type Surface Mount
Package / Case SOD-523
RoHS Status ROHS3 Compliant
Moisture Sensitivity Level 1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the BZX584B33-TP are identified based on strict equivalence across all critical electrical and mechanical parameters. The substitution criteria are:

Electrical Parameters (Must Match Exactly):

  • Zener voltage: 33 V nominal
  • Tolerance: ±2%
  • Maximum power dissipation: 150 mW
  • Maximum impedance: 80 Ohms
  • Reverse leakage current: 100 nA @ 23.1 V
  • Forward voltage: 900 mV @ 10 mA maximum
  • Operating temperature range: -55°C to 150°C

Mechanical & Compliance Parameters (Must Match):

  • Package type: SOD-523 (SC-79)
  • Mounting type: Surface Mount
  • RoHS3 compliance required
  • Moisture Sensitivity Level: 1 (Unlimited)

Parts meeting all these criteria are classified as parametric equivalents and direct substitutes. Packaging format (Tape & Reel versus Cut Tape) does not affect electrical or mechanical compatibility and does not restrict substitution eligibility.

Parameter Comparison

Parameter BZX584B33-TP (Micro Commercial Co) BZX584B33 RSG (Taiwan Semiconductor Corporation) Match
Voltage - Zener (Nom) 33 V 33 V
Tolerance ±2% ±2%
Power - Max 150 mW 150 mW
Impedance (Max) 80 Ohms 80 Ohms
Current - Reverse Leakage @ Vr 100 nA @ 23.1 V 100 nA @ 23.1 V
Voltage - Forward (Vf) (Max) @ If 900 mV @ 10 mA 900 mV @ 10 mA
Operating Temperature Range -55°C ~ 150°C (TJ) -55°C ~ 150°C (TJ)
Mounting Type Surface Mount Surface Mount
Package / Case SOD-523 SOD-523
RoHS Status ROHS3 Compliant ROHS3 Compliant
Moisture Sensitivity Level 1 (Unlimited) 1 (Unlimited)
Product Status Active Active

Engineering Selection Recommendations

The BZX584B33 RSG manufactured by Taiwan Semiconductor Corporation is a direct parametric equivalent to the BZX584B33-TP. Both components are active products with identical electrical specifications, operating temperature ranges, and compliance certifications. Selection between these parts may be based on:

Availability and Lead Time: The BZX584B33 RSG has higher inventory availability (8995 Pcs) compared to the BZX584B33-TP (1157 Pcs), which may influence procurement decisions for high-volume applications.

Packaging Format: The BZX584B33-TP is supplied in Tape & Reel (TR) format, while the BZX584B33 RSG is available in Cut Tape (CT) and Digi-Reel® format. Both packaging formats are compatible with standard surface mount assembly equipment and do not affect circuit performance.

Regulatory Compliance: Both parts maintain ROHS3 compliance, REACH Unaffected status, and identical ECCN and HTSUS classifications, ensuring compatibility with supply chain and export requirements.

Frequently Asked Questions (FAQ)

Q: Can the BZX584B33 RSG be used as a direct replacement for the BZX584B33-TP in existing designs?

A: Yes. The BZX584B33 RSG meets all electrical and mechanical specifications of the BZX584B33-TP, including zener voltage, power rating, impedance, leakage current, forward voltage, and operating temperature range. Both components use identical SOD-523 packaging and are surface mount compatible.

Q: Are there differences in packaging that affect assembly or performance?

A: The BZX584B33-TP is supplied in Tape & Reel format, while the BZX584B33 RSG is available in Cut Tape and Digi-Reel® format. These are packaging and delivery formats only and do not affect electrical performance, circuit compatibility, or assembly compatibility with standard pick-and-place equipment.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the BZX584B33-TP and BZX584B33 RSG are ROHS3 compliant, REACH Unaffected, and carry identical ECCN (EAR99) and HTSUS (8541.10.0050) classifications.

Q: What is the moisture sensitivity level for these components?

A: Both parts have Moisture Sensitivity Level 1 (Unlimited), indicating no moisture-related storage or handling restrictions.

Q: Are the impedance and leakage current specifications identical?

A: Yes. Both components specify maximum impedance of 80 Ohms and reverse leakage current of 100 nA @ 23.1 V, ensuring equivalent performance in voltage regulation and protection circuits.

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