BZX584B47 Equivalent & Substitute Parts

Part Overview

The BZX584B47 is a surface mount Zener diode manufactured by Taiwan Semiconductor Corporation, designed for voltage regulation and protection applications. This component operates at a nominal Zener voltage of 47 V with 150 mW power dissipation capability and ±2% tolerance. The device is classified as Active product status and maintains full compliance with RoHS3 and REACH regulations. Substitute parts are identified when packaging configurations differ while maintaining identical electrical performance and mechanical compatibility within the SOD-523F package family.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	47	V
Tolerance	±2	%
Power - Max	150	mW
Impedance (Max)	170	Ohms
Current - Reverse Leakage @ Vr	100 nA @ 36 V	nA
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA	mV
Operating Temperature Range	-55 to 150	°C
Package / Case	SC-79, SOD-523	—
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitution of the BZX584B47 is determined by equivalence across all critical electrical parameters: Zener voltage (47 V), power rating (150 mW), tolerance (±2%), impedance (170 Ohms maximum), reverse leakage current (100 nA @ 36 V), forward voltage (900 mV @ 10 mA), and operating temperature range (-55°C to 150°C). The package designation SC-79/SOD-523F remains constant across all equivalent parts. Substitution is valid when the supplier device package (SOD-523F) and mounting type (Surface Mount) are identical. Packaging configuration differences—specifically Tape & Reel (TR) versus Cut Tape (CT) & Digi-Reel®—do not affect electrical or mechanical compatibility and represent distribution format variations only.

Parameter Comparison

Parameter	BZX584B47 (TR)	BZX584B47 RSG (CT & Digi-Reel®)
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation
Category	Diodes, Zener	Diodes, Zener
Voltage - Zener (Nom)	47 V	47 V
Tolerance	±2%	±2%
Power - Max	150 mW	150 mW
Impedance (Max)	170 Ohms	170 Ohms
Current - Reverse Leakage @ Vr	100 nA @ 36 V	100 nA @ 36 V
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA	900 mV @ 10 mA
Operating Temperature	-55°C ~ 150°C	-55°C ~ 150°C
Mounting Type	Surface Mount	Surface Mount
Package / Case	SC-79, SOD-523	SC-79, SOD-523
Supplier Device Package	SOD-523F	SOD-523F
Product Status	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS	8541.10.0050	8541.10.0050

Engineering Selection Recommendations

Both BZX584B47 and BZX584B47 RSG are Active status components manufactured by Taiwan Semiconductor Corporation with identical electrical specifications and mechanical compatibility. Selection between these parts is based on supply chain and procurement requirements rather than technical performance. The BZX584B47 is supplied in Tape & Reel (TR) format, while the BZX584B47 RSG is supplied in Cut Tape (CT) & Digi-Reel® format. Both configurations maintain full RoHS3 compliance and REACH Unaffected status. The BZX584B47 RSG includes specified Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), indicating no moisture sensitivity constraints. Component selection should align with assembly equipment compatibility and inventory management protocols.

Frequently Asked Questions (FAQ)

Q: Are BZX584B47 and BZX584B47 RSG electrically identical?

A: Yes. Both parts share identical electrical specifications including 47 V nominal Zener voltage, 150 mW power rating, ±2% tolerance, 170 Ohms maximum impedance, 100 nA reverse leakage current at 36 V, and 900 mV forward voltage at 10 mA. Operating temperature range is -55°C to 150°C for both variants.

Q: What is the difference between these two part numbers?

A: The primary difference is packaging configuration. BZX584B47 is supplied in Tape & Reel (TR) format, while BZX584B47 RSG is supplied in Cut Tape (CT) & Digi-Reel® format. Both use the identical SOD-523F package and SC-79 case designation.

Q: Can I substitute BZX584B47 RSG for BZX584B47 in my circuit design?

A: Yes, provided your assembly equipment is compatible with the Cut Tape & Digi-Reel® packaging format. The electrical and mechanical specifications are identical, ensuring circuit performance equivalence.

Q: Are there any compliance differences between these parts?

A: No. Both parts maintain identical RoHS3 compliance, REACH Unaffected status, EAR99 ECCN classification, and 8541.10.0050 HTSUS code.

Q: What does MSL 1 (Unlimited) mean for the BZX584B47 RSG?

A: Moisture Sensitivity Level 1 (Unlimited) indicates the component has no moisture sensitivity constraints and does not require special moisture control handling during storage or assembly.

Q: Can I use either part interchangeably in high-volume production?

A: Interchangeability depends on your assembly line equipment specifications. Tape & Reel format and Cut Tape & Digi-Reel® format require different feeder configurations. Verify equipment compatibility before implementing either variant in production.

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