BZX84C13CC-HF Equivalent & Substitute Parts

Part Overview

The BZX84C13CC-HF is an active-status Zener diode manufactured by Comchip Technology, rated for 13 V nominal Zener voltage with 350 mW maximum power dissipation in a surface-mount SOT-23-3 package. This component is used in voltage regulation and protection circuits where precise voltage clamping at 13 V is required. Substitute parts are identified to provide equivalent functional performance when the primary part is unavailable or when alternative sourcing is necessary.

Substiute Parts

BZX84C13CC-HF

Comchip TechnologyIn Stock: 801BZX84C13CC-HF Datasheet

Current PartRFQ

BZX84B13

Good-Ark SemiconductorIn Stock: 4339BZX84B13 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BZX84C13CC-HF is determined by equivalence across the following critical parameters:

• Zener Voltage (Vz): 13 V nominal
• Power Rating: 350 mW maximum
• Package Type: SOT-23-3 surface mount
• Operating Temperature Range: -65°C to 150°C
• Reverse Leakage Current: 100 nA @ 8 V
• Impedance (Zzt): 30 Ohms maximum
• Compliance: ROHS3 Compliant

The BZX84B13 from Good-Ark Semiconductor meets all these core electrical and mechanical requirements. While the BZX84B13 specifies a tighter tolerance of ±2% compared to the ±6.54% of the BZX84C13CC-HF, this represents an improvement in voltage accuracy and does not prevent functional substitution. Both parts operate within the same temperature range, share identical power and impedance ratings, and are packaged in the same SOT-23-3 form factor.

Parameter Comparison

Engineering Selection Recommendations

Both the BZX84C13CC-HF and BZX84B13 are active-status components with full ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Selection between these parts should be based on the following criteria:

BZX84C13CC-HF (Comchip Technology): Select this part when the original design specification calls for the Comchip series or when the ±6.54% tolerance is explicitly required by circuit design parameters.

BZX84B13 (Good-Ark Semiconductor): Select this part as a substitute when the BZX84C13CC-HF is unavailable. The tighter ±2% tolerance provides improved voltage regulation accuracy without compromising circuit compatibility. This part is suitable for applications where enhanced voltage precision is beneficial.

Both parts are suitable for applications requiring 13 V Zener regulation in the -65°C to 150°C operating range with 350 mW power dissipation capability. Inventory availability and lead time considerations may also influence part selection.

Frequently Asked Questions (FAQ)

Q: Can the BZX84B13 be used as a direct replacement for the BZX84C13CC-HF?

A: Yes. Both parts share identical Zener voltage (13 V), power rating (350 mW), impedance (30 Ohms), reverse leakage current (100 nA @ 8 V), operating temperature range (-65°C to 150°C), and SOT-23-3 package. The BZX84B13 features a tighter tolerance (±2% vs. ±6.54%), which improves voltage accuracy without affecting functional compatibility.

Q: Are there any package differences between these parts?

A: No. Both the BZX84C13CC-HF and BZX84B13 use the SOT-23-3 package (also designated TO-236-3 or SC-59). They are pin-compatible and suitable for identical PCB layouts.

Q: What is the significance of the tolerance difference?

A: The BZX84B13 specifies ±2% tolerance compared to the BZX84C13CC-HF's ±6.54%. This means the BZX84B13 maintains the 13 V Zener voltage within a narrower range, providing more stable voltage regulation. This is an improvement that does not introduce incompatibility.

Q: Are both parts RoHS compliant?

A: Yes. Both the BZX84C13CC-HF and BZX84B13 are ROHS3 compliant and carry MSL 1 (unlimited) moisture sensitivity level.

Q: What is the operating temperature range for these parts?

A: Both parts operate across the junction temperature range of -65°C to 150°C, making them suitable for industrial and extended-temperature applications.

Q: Can these parts be used interchangeably in existing designs?

A: Yes. The electrical and mechanical parameters are equivalent, and the SOT-23-3 package ensures pin-for-pin compatibility. No circuit redesign is required for substitution.