BZX84C13 Equivalent & Substitute Parts

Part Overview

The BZX84C13 is an active-status Zener diode manufactured by Taiwan Semiconductor Corporation, rated for 13 V nominal Zener voltage with 300 mW maximum power dissipation in a surface-mount SOT-23 package. This component is used in voltage regulation and protection circuits requiring stable reference voltages in compact form factors. Substitute parts are identified to address inventory availability, packaging preferences, tolerance requirements, and automotive qualification needs while maintaining electrical and mechanical compatibility.

Substiute Parts

BZX84C13

Taiwan Semiconductor CorporationIn Stock: 170443BZX84C13 Datasheet

Current PartRFQ

BZX84C13 RFG

Taiwan Semiconductor CorporationIn Stock: 7206BZX84C13 RFG Datasheet

Parametric EquivalentRFQ

BZX84B13Q-7-F

Diodes IncorporatedIn Stock: 1675BZX84B13Q-7-F Datasheet

Parametric EquivalentRFQ

BZX84C13Q-13-F

Diodes IncorporatedIn Stock: 1202BZX84C13Q-13-F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of Zener diodes is determined by equivalence in the following critical parameters:

• Nominal Zener Voltage (Vz): All substitute parts maintain 13 V nominal rating
• Maximum Power Dissipation: All substitute parts rated at 300 mW
• Package and Mounting: All substitute parts use SOT-23 surface-mount package (TO-236-3, SC-59, SOT-23-3)
• Impedance (Zzt): All substitute parts maintain 30 Ohms maximum impedance
• Reverse Leakage Current: All substitute parts specify 100 nA @ 8 V
• Forward Voltage: All substitute parts specify 900 mV @ 10 mA maximum
• Operating Temperature Range: All substitute parts operate across -65°C to 150°C (TJ)
• Regulatory Compliance: All substitute parts are ROHS3 Compliant and REACH Unaffected

Variations among substitute parts include tolerance specifications, packaging format (bulk versus tape & reel), and automotive qualification status. These variations do not affect electrical interchangeability in applications where the specified parameters are met.

Parameter Comparison

Engineering Selection Recommendations

BZX84C13 RFG (Taiwan Semiconductor Corporation): This substitute maintains identical electrical specifications to the main part with improved tolerance (±5% versus ±6.54%) and is supplied in tape & reel packaging. Both parts are ROHS3 Compliant and REACH Unaffected. Selection is appropriate for high-volume automated assembly processes requiring reel-fed components.

BZX84B13Q-7-F (Diodes Incorporated): This substitute offers the tightest tolerance specification (±2%) among all listed parts and includes AEC-Q101 automotive qualification. Electrical parameters remain equivalent to the main part. Selection is appropriate for applications requiring automotive-grade components or tighter voltage regulation tolerances.

BZX84C13Q-13-F (Diodes Incorporated): This substitute maintains tolerance specification identical to the main part (±6.54%) and includes AEC-Q101 automotive qualification. Electrical parameters are fully equivalent. Selection is appropriate for automotive applications where AEC-Q101 qualification is required.

All substitute parts are active-status components with confirmed inventory availability and full regulatory compliance. Selection among substitutes depends on packaging format requirements, tolerance specifications, and automotive qualification needs rather than electrical performance differences.

Frequently Asked Questions (FAQ)

Q: Can BZX84C13 be replaced with BZX84C13 RFG in production?

A: Yes. Both parts are manufactured by Taiwan Semiconductor Corporation with identical electrical specifications (13 V, 300 mW, 30 Ohms impedance, -65°C to 150°C operating range). The primary difference is packaging format: BZX84C13 is supplied in bulk, while BZX84C13 RFG is supplied in tape & reel. Electrical interchangeability is complete.

Q: What is the advantage of BZX84B13Q-7-F over the main part?

A: BZX84B13Q-7-F provides ±2% tolerance compared to ±6.54% for BZX84C13, resulting in tighter Zener voltage regulation. Additionally, BZX84B13Q-7-F carries AEC-Q101 automotive qualification. All other electrical parameters remain equivalent. Selection depends on tolerance requirements and automotive application needs.

Q: Are all substitute parts compatible with the same PCB footprint?

A: Yes. All parts use the SOT-23 package (TO-236-3, SC-59, SOT-23-3), which defines identical physical dimensions and pin configuration. PCB footprints are interchangeable without modification.

Q: Does switching from BZX84C13 to an automotive-qualified substitute affect circuit performance?

A: No. BZX84B13Q-7-F and BZX84C13Q-13-F maintain all critical electrical parameters: 13 V nominal Zener voltage, 300 mW power rating, 30 Ohms impedance, and identical operating temperature range. AEC-Q101 qualification indicates additional manufacturing and testing rigor but does not alter electrical performance in the circuit.

Q: What is the difference between BZX84B13Q-7-F and BZX84C13Q-13-F?

A: The primary difference is tolerance: BZX84B13Q-7-F specifies ±2% tolerance, while BZX84C13Q-13-F specifies ±6.54% tolerance. Both carry AEC-Q101 automotive qualification and are electrically equivalent in all other parameters. Selection depends on voltage regulation tolerance requirements.

Q: Can BZX84C13 be used in automotive applications?

A: BZX84C13 is not designated as automotive-grade and does not carry AEC-Q101 qualification. For automotive applications, BZX84B13Q-7-F or BZX84C13Q-13-F are appropriate substitutes, both of which include AEC-Q101 qualification.

Q: Is tape & reel packaging required for automated assembly?

A: Tape & reel packaging (BZX84C13 RFG, BZX84B13Q-7-F, BZX84C13Q-13-F) is standard for high-volume automated pick-and-place assembly. Bulk packaging (BZX84C13) is suitable for manual assembly or lower-volume production. Packaging selection depends on manufacturing process requirements.