CZRUR52C39 Zener Diode 39V 150mW Equivalent & Substitute Parts

Part Overview

The CZRUR52C39 is a 39V Zener diode manufactured by Comchip Technology, rated for 150mW power dissipation in a surface mount 0603/SOD-523F package. This component is classified as Active product status and is ROHS3 compliant. Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing, inventory optimization, or supply chain flexibility while maintaining identical electrical and mechanical specifications.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	39	V
Tolerance	±5	%
Power - Max	150	mW
Impedance (Max)	90	Ohms
Current - Reverse Leakage @ Vr	100 nA @ 29 V	nA
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA	mV
Operating Temperature Range	-55 to 125	°C
Mounting Type	Surface Mount	—
Package / Case	2-SMD, No Lead	—
Supplier Device Package	0603/SOD-523F	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the CZRUR52C39 are identified based on strict electrical and mechanical parameter matching. The substitution criteria are:

Critical Parameters for Substitution:

Zener voltage: 39V nominal
Tolerance: ±5%
Maximum power rating: 150mW
Impedance (Max): 90 Ohms
Reverse leakage current: 100 nA @ 29V
Forward voltage: 900 mV @ 10 mA
Operating temperature range: -55°C to 125°C
Package type: 0603/SOD-523F surface mount
Compliance: ROHS3, MSL 1

The CZRU52C39-HF meets all specified parameters and is classified as a parametric equivalent. Both parts are manufactured by Comchip Technology and share identical electrical characteristics and mechanical specifications.

Parameter Comparison

Parameter	CZRUR52C39	CZRU52C39-HF	Match
Manufacturer	Comchip Technology	Comchip Technology	✓
Category	Diodes, Zener	Diodes, Zener	✓
Voltage - Zener (Nom)	39 V	39 V	✓
Tolerance	±5%	±5%	✓
Power - Max	150 mW	150 mW	✓
Impedance (Max)	90 Ohms	90 Ohms	✓
Current - Reverse Leakage @ Vr	100 nA @ 29 V	100 nA @ 29 V	✓
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA	900 mV @ 10 mA	✓
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	✓
Mounting Type	Surface Mount	Surface Mount	✓
Package / Case	2-SMD, No Lead	2-SMD, No Lead	✓
Supplier Device Package	0603/SOD-523F	0603/SOD-523F	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	✓
REACH Status	REACH Unaffected	REACH Unaffected	✓
ECCN	EAR99	EAR99	✓
HTSUS	8541.10.0050	8541.10.0050	✓

Engineering Selection Recommendations

CZRU52C39-HF is a direct parametric equivalent to CZRUR52C39. Selection between these parts is based on:

Product Status: Both parts maintain Active status, ensuring continued manufacturer support and availability.

Compliance & Certifications: Both parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. Moisture sensitivity level is identical at MSL 1 (Unlimited), indicating no special storage or handling requirements.

Packaging & Supply: CZRU52C39-HF is available with 983 Pcs in stock compared to CZRUR52C39 with 823 Pcs. Both are supplied in Tape & Reel format suitable for automated assembly.

Electrical Performance: All electrical parameters are identical, including zener voltage, power rating, impedance, leakage current, and forward voltage characteristics. Operating temperature range is -55°C to 125°C for both parts.

Application Compatibility: Direct substitution is applicable in all circuit designs where CZRUR52C39 is specified, with no circuit modifications required.

Frequently Asked Questions (FAQ)

Q: Can CZRU52C39-HF be used as a direct replacement for CZRUR52C39?

A: Yes. CZRU52C39-HF is a parametric equivalent with identical electrical and mechanical specifications. All critical parameters including 39V zener voltage, 150mW power rating, 0603/SOD-523F package, and compliance certifications match exactly.

Q: Are there any differences in the physical package between these parts?

A: No. Both parts use the 0603/SOD-523F surface mount package with 2-SMD, No Lead configuration. They are mechanically interchangeable on PCB layouts.

Q: What is the significance of the "-HF" suffix in CZRU52C39-HF?

A: The "-HF" designation indicates a variant within the CZRU52C39 base product family. However, all electrical and mechanical parameters remain identical to CZRUR52C39.

Q: Do these parts require different handling or storage procedures?

A: No. Both parts have Moisture Sensitivity Level 1 (Unlimited), meaning no special moisture control or baking procedures are required. Standard ESD precautions apply to both.

Q: Are both parts ROHS3 compliant?

A: Yes. Both CZRUR52C39 and CZRU52C39-HF are ROHS3 compliant and REACH unaffected, meeting current environmental regulations.

Q: What is the operating temperature range for these zener diodes?

A: Both parts operate across -55°C to 125°C, suitable for industrial and commercial temperature environments.

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

A: Yes. Both parts are supplied in Tape & Reel packaging format, compatible with standard pick-and-place equipment and reflow soldering processes.

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