BZX584B22-TP Equivalent & Substitute Parts

Part Overview

The BZX584B22-TP is a surface mount Zener diode manufactured by Micro Commercial Co, rated at 22 V nominal Zener voltage with 150 mW maximum power dissipation. 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 circuits in electronic systems. Substitute parts may be required due to inventory availability, supply chain constraints, or specific application requirements such as automotive qualification or alternative packaging formats.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	22	V
Tolerance	±2%	—
Power - Max	150	mW
Impedance (Max)	55	Ohms
Current - Reverse Leakage @ Vr	100	nA @ 15.4 V
Voltage - Forward (Vf) (Max) @ If	900	mV @ 10 mA
Operating Temperature Range	-55 to 150	°C (TJ)
Mounting Type	Surface Mount	—
Package / Case	SC-79, SOD-523	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the BZX584B22-TP are qualified based on electrical parameter equivalence and mechanical compatibility. The following criteria determine substitution eligibility:

Electrical Parameters (Must Match):

Voltage - Zener (Nom): 22 V
Tolerance: ±2%
Power - Max: 150 mW
Impedance (Max): 55 Ohms
Current - Reverse Leakage @ Vr: 100 nA @ 15.4 V
Voltage - Forward (Vf) (Max) @ If: 900 mV @ 10 mA
Operating Temperature Range: -55°C to 150°C (TJ)

Mechanical Parameters (Must Match):

Mounting Type: Surface Mount
Package / Case: SC-79, SOD-523
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

All identified substitute parts meet these electrical and mechanical requirements. Variations in packaging format (Tape & Reel versus Cut Tape) and manufacturer-specific qualifications (such as AEC-Q101 automotive qualification) do not affect electrical substitution eligibility.

Parameter Comparison

Parameter	BZX584B22-TP (Micro Commercial Co)	BZX584B22HE3-TP (Micro Commercial Co)	BZX584B22 RSG (Taiwan Semiconductor)
Voltage - Zener (Nom)	22 V	22 V	22 V
Tolerance	±2%	±2%	±2%
Power - Max	150 mW	150 mW	150 mW
Impedance (Max)	55 Ohms	55 Ohms	55 Ohms
Current - Reverse Leakage @ Vr	100 nA @ 15.4 V	100 nA @ 15.4 V	100 nA @ 15.4 V
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA	900 mV @ 10 mA	900 mV @ 10 mA
Operating Temperature Range	-55°C to 150°C (TJ)	-55°C to 150°C (TJ)	-55°C to 150°C (TJ)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	SC-79, SOD-523	SC-79, SOD-523	SC-79, SOD-523
Supplier Device Package	SOD-523	SOD-523	SOD-523F
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active
Packaging Format	Tape & Reel (TR)	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®

Engineering Selection Recommendations

All three parts—BZX584B22-TP, BZX584B22HE3-TP, and BZX584B22 RSG—are electrically and mechanically equivalent for direct substitution in applications requiring a 22 V, 150 mW Zener diode in SOD-523 surface mount package.

BZX584B22HE3-TP carries AEC-Q101 automotive qualification, making it suitable for applications requiring automotive-grade components. This part is manufactured by Micro Commercial Co and is available in Tape & Reel packaging.

BZX584B22 RSG is manufactured by Taiwan Semiconductor Corporation and is available in Cut Tape and Digi-Reel® packaging formats. This part meets the same electrical specifications and RoHS3 compliance requirements.

Selection between these parts should be based on packaging format requirements, supply chain availability, and any application-specific qualification mandates. All parts maintain ROHS3 compliance and unlimited moisture sensitivity rating.

Frequently Asked Questions (FAQ)

Q: Can BZX584B22HE3-TP be used as a direct replacement for BZX584B22-TP?

A: Yes. Both parts are electrically and mechanically equivalent, with identical Zener voltage (22 V), power rating (150 mW), tolerance (±2%), and operating temperature range (-55°C to 150°C). The primary difference is that BZX584B22HE3-TP carries AEC-Q101 automotive qualification. Direct substitution is valid for all applications meeting the specified electrical parameters.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging supplies components on continuous tape wound on reels, suitable for high-volume automated assembly. Cut Tape (CT) packaging supplies components on tape segments cut to specific lengths, suitable for lower-volume or mixed-component assembly. Both packaging formats contain the same component in the same SOD-523 package. Selection depends on assembly equipment and production volume requirements.

Q: Are all three parts RoHS3 compliant?

A: Yes. BZX584B22-TP, BZX584B22HE3-TP, and BZX584B22 RSG are all ROHS3 compliant and REACH unaffected, meeting environmental regulatory requirements for electronic components.

Q: Does the SOD-523F package designation for BZX584B22 RSG affect compatibility?

A: No. The SOD-523F designation refers to the supplier device package format but represents the same SC-79, SOD-523 physical package. The component footprint and electrical interface remain identical across all three parts.

Q: Which part should be selected for automotive applications?

A: BZX584B22HE3-TP is qualified to AEC-Q101 automotive standards and is the appropriate selection for automotive applications. The other parts meet the same electrical specifications but do not carry automotive qualification.

Q: Can these parts be used interchangeably on the same PCB assembly?

A: Yes. All three parts share identical electrical parameters, operating temperature range, and SOD-523 surface mount package dimensions. They are mechanically and electrically interchangeable on the same PCB layout without design modifications.

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