Equivalent & Substitute Parts Reference for BZX84C33 Zener Diode

Part Overview

The BZX84C33 is a Zener diode in the Diodes, Zener category, manufactured by Taiwan Semiconductor Corporation. It features a nominal Zener voltage of 33 V, maximum power dissipation of 300 mW, and an impedance of 80 Ohms. The diode is supplied in a SOT-23 surface mount package and offers a tolerance of ±6.06%. It is currently active and available in quantity. Identifying equivalent and substitute part numbers ensures flexibility in electronic component sourcing when part availability or supply chain logistics requires compatible alternatives within specified electrical and mechanical parameters.

Key Parameters

Parameter	Value
Voltage - Zener (Nom) (Vz)	33 V
Tolerance	±6.06%
Power - Max	300 mW
Impedance (Max) (Zzt)	80 Ohms
Current - Reverse Leakage @ Vr	100 nA @ 23.1 V
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA
Operating Temperature	-65°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	TO-236-3, SC-59, SOT-23-3
Supplier Device Package	SOT-23
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected
Product Status	Active

Substitute Part Grouping Explanation

Substitutes for BZX84C33 are grouped based strictly on identical or superseding values for critical electrical and mechanical parameters: nominal Zener voltage, tolerance, power dissipation, impedance, reverse leakage current, forward voltage at test current, operating temperature range, mounting type, and package/case compatibility. Compliance attributes such as RoHS and REACH status are included for regulatory matching. Only parts matching or improving upon these values are listed as substitutes.

Parameter Comparison

Parameter	BZX84C33 (Taiwan Semiconductor Corporation)	BZX84C33 RFG (Taiwan Semiconductor Corporation)	BZX84B33Q-7-F (Diodes Incorporated)	BZX84C33Q-13-F (Diodes Incorporated)	BZX84C33Q-7-F (Diodes Incorporated)
Voltage - Zener (Nom) (Vz)	33 V	33 V	33 V	33 V	33 V
Tolerance	±6.06%	±5%	±2%	±6.06%	±6.06%
Power - Max	300 mW	300 mW	300 mW	300 mW	300 mW
Impedance (Max) (Zzt)	80 Ohms	80 Ohms	80 Ohms	80 Ohms	80 Ohms
Current - Reverse Leakage @ Vr	100 nA @ 23.1 V	100 nA @ 23.1 V	100 nA @ 23.1 V	100 nA @ 23.1 V	100 nA @ 23.1 V
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA	900 mV @ 10 mA	900 mV @ 10 mA	900 mV @ 10 mA	900 mV @ 10 mA
Operating Temperature	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3
Supplier Device Package	SOT-23	SOT-23	SOT-23-3	SOT-23-3	SOT-23-3
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
Product Status	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All listed substitute Zener diodes are active and are compliant with ROHS3 and REACH regulations. Substitute parts have equivalent or tighter tolerance, matching electrical ratings, and package compatibility. Automotive-grade and AEC-Q101 qualified parts are included, aligning with enhanced standards where specified. Product status and compliance ensure suitability for direct replacement within the specified category.

Frequently Asked Questions (FAQ)

Q1: What parameters must match for substituting a Zener diode?
A1: Substitution requires matching nominal Zener voltage, maximum power, absolute maximum impedance, reverse leakage current, forward voltage at specified current, operating temperature range, mounting type, package/case, and regulatory compliance.

Q2: Are tighter tolerances acceptable when substituting the BZX84C33?
A2: Substitutes with tighter tolerance (e.g., ±2% or ±5%) are acceptable when other key parameters are identical.

Q3: What package types are supported for substitution?
A3: The substitute must be compatible with the SOT-23, TO-236-3, SC-59, or SOT-23-3 packages as specified.

Q4: Is compliance with ROHS and REACH mandatory for selection?
A4: Substitute parts must maintain ROHS and REACH compliance to match regulatory requirements.

Q5: Should automotive qualification be considered?
A5: Automotive-grade and AEC-Q101 qualification are present for some substitutes; selection depends on application requirements provided in these parameters.

Q6: Are substitute parts readily available in the same package configuration?
A6: All substitutes listed are supplied in the equivalent SOT-23 or SOT-23-3 surface mount format, maintaining mechanical compatibility.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message