BZX85C11-TAP Equivalent & Substitute Parts

Part Overview

The BZX85C11-TAP is an 11 V, 1.3 W Zener diode manufactured by Vishay General Semiconductor - Diodes Division in DO-41 axial through-hole packaging. This component is classified as Active product status and carries AEC-Q101 automotive qualification. Zener diodes of this specification are used in voltage regulation, overvoltage protection, and reference voltage circuits. Substitute parts may be required due to inventory availability, supply chain constraints, or specific manufacturing preferences while maintaining electrical and mechanical compatibility.

Substiute Parts

BZX85C11-TAP

Vishay General Semiconductor - Diodes DivisionIn Stock: 5346BZX85C11-TAP Datasheet

Current PartRFQ

1N4741A-T50A

onsemiIn Stock: 69231N4741A-T50A Datasheet

MFR RecommendedRFQ

1N4741ATR

Fairchild SemiconductorIn Stock: 309051N4741ATR Datasheet

MFR RecommendedRFQ

BZV85-C11,113

NXP USA Inc.In Stock: 68777BZV85-C11,113 Datasheet

MFR RecommendedRFQ

BZX85C11

Taiwan Semiconductor CorporationIn Stock: 753BZX85C11 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BZX85C11-TAP is determined by the following critical parameters:

Primary Substitution Criteria:

• Zener voltage: 11 V nominal with ±5% tolerance
• Package type: DO-204AL (DO-41) axial through-hole configuration
• Mounting type: Through-hole
• RoHS compliance: ROHS3 Compliant

Secondary Compatibility Factors:

• Power dissipation rating: 1.3 W or greater
• Impedance (maximum): 8 Ohms or lower
• Operating temperature range: Must encompass application requirements
• Regulatory compliance: REACH Unaffected, EAR99 classification

All substitute parts listed maintain the core electrical specifications (11 V nominal, ±5% tolerance) and physical package format (DO-41 axial). Variations in maximum power rating, impedance, and operating temperature ranges are noted in the parameter comparison table and do not preclude substitution when application requirements are satisfied.

Parameter Comparison

Engineering Selection Recommendations

Full Compatibility Substitutes:

The BZV85-C11,113 (NXP USA Inc.) and BZX85C11 (Taiwan Semiconductor Corporation) are direct substitutes for the BZX85C11-TAP. Both parts maintain identical nominal zener voltage (11 V), tolerance (±5%), maximum power rating (1.3 W), and DO-41 axial through-hole package configuration. All three parts are Active product status with ROHS3 compliance and REACH Unaffected regulatory status.

Reduced Power Rating Substitutes:

The 1N4741A-T50A (onsemi) and 1N4741ATR (Fairchild Semiconductor) are functionally equivalent substitutes with the following distinction: maximum power dissipation is rated at 1 W instead of 1.3 W. These parts maintain identical zener voltage (11 V), tolerance (±5%), impedance (8 Ohms), and DO-41 package format. Both are Active product status. Selection of these parts is appropriate when application power dissipation requirements do not exceed 1 W.

Impedance Consideration:

The BZV85-C11,113 (NXP) specifies maximum impedance of 10 Ohms compared to 8 Ohms for the primary part. This parameter difference is within acceptable substitution tolerance for general voltage regulation and protection applications.

Temperature Range Consideration:

The BZX85C11-TAP operates from -55°C to 175°C. All substitute parts extend the upper operating temperature to 200°C and lower temperature to -65°C, providing broader thermal operating margins.

Frequently Asked Questions (FAQ)

Q: Can the 1N4741A-T50A or 1N4741ATR be used as direct replacements for the BZX85C11-TAP?

A: Yes, with power dissipation qualification. Both parts maintain the 11 V nominal zener voltage, ±5% tolerance, DO-41 package, and 8 Ohms maximum impedance. The primary difference is maximum power rating of 1 W versus 1.3 W. Substitution is valid when circuit power dissipation does not exceed 1 W.

Q: What is the significance of the impedance parameter in zener diode substitution?

A: Impedance (Zzt) affects the dynamic regulation characteristics of the zener diode. Lower impedance values provide better voltage regulation under varying load conditions. The BZX85C11-TAP specifies 8 Ohms maximum. The BZV85-C11,113 specifies 10 Ohms maximum, which remains acceptable for most applications but may result in slightly reduced regulation performance.

Q: Are all substitute parts available in the same packaging format?

A: All substitute parts use the DO-204AL (DO-41) axial through-hole package. However, packaging type (Cut Tape, Bulk, or Tape & Reel) varies by supplier. Verify packaging format availability based on procurement and assembly requirements.

Q: Does the extended operating temperature range of substitute parts affect compatibility?

A: No. The BZX85C11-TAP operates from -55°C to 175°C. Substitute parts with extended ranges (-65°C to 200°C) are fully compatible and provide additional thermal margin. Applications requiring operation within the original -55°C to 175°C range will function identically with substitute parts.

Q: Is the BZX85C11-TAP automotive qualified?

A: Yes. The BZX85C11-TAP carries AEC-Q101 automotive qualification. The substitute parts listed do not specify AEC-Q101 qualification in the provided data. For automotive applications requiring AEC-Q101 compliance, the BZX85C11-TAP or BZV85-C11,113 (if AEC-Q101 qualified) should be confirmed with the manufacturer.

Q: What is the difference between the BZX85C11 (Taiwan Semiconductor) and BZX85C11-TAP (Vishay)?

A: Both parts are electrically identical with 11 V nominal zener voltage, ±5% tolerance, 1.3 W maximum power, and DO-41 package. The primary difference is manufacturer and packaging format: BZX85C11-TAP is supplied in Cut Tape (CT), while BZX85C11 is supplied in Tape & Reel (TR).

Q: Can these zener diodes be used interchangeably in voltage reference circuits?

A: Yes. All listed parts maintain the 11 V nominal zener voltage and ±5% tolerance required for voltage reference applications. Impedance differences (8 Ohms versus 10 Ohms) may result in minor variations in reference voltage stability under dynamic load conditions but do not preclude interchangeability in standard reference circuits.