1N4696-TP Zener Diode Equivalent & Substitute Parts

Part Overview

The 1N4696-TP is a 9.1 V, 500 mW Zener diode manufactured by Micro Commercial Co in a DO-35 axial through-hole package. This component is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. Substitute parts must maintain electrical equivalence across voltage regulation, power dissipation, and thermal characteristics while accommodating modern packaging and compliance standards.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	9.1	V
Tolerance	±5%	%
Power - Max	500	mW
Mounting Type	Through Hole	—
Package / Case	DO-204AH, DO-35, Axial	—
Voltage - Forward (Vf) (Max) @ If	1.5 V @ 100 mA	V @ mA

Substitute Part Grouping Explanation

Substitution eligibility for the 1N4696-TP is determined by the following mandatory parameters:

Zener Voltage (Vz): Must be 9.1 V nominal
Power Rating: Must be 500 mW maximum
Voltage Tolerance: Must be ±5% or tighter
Package Type: Must be DO-35 axial through-hole configuration
Mounting Type: Must be through-hole compatible

All substitute parts listed below satisfy these core electrical and mechanical requirements. Variations in secondary parameters such as impedance, reverse leakage current, and operating temperature range do not preclude substitution when primary parameters align.

Parameter Comparison

Parameter	1N4696-TP	BZX79C9V1	1N5999B	TZX9V1A-TAP	TZX9V1A-TR
Manufacturer	Micro Commercial Co	Taiwan Semiconductor Corporation	Microchip Technology	Vishay General Semiconductor	Vishay General Semiconductor
Voltage - Zener (Nom)	9.1 V	9.1 V	9.1 V	9.1 V	9.1 V
Tolerance	±5%	±5%	±5%	—	—
Power - Max	500 mW	500 mW	500 mW	500 mW	500 mW
Package / Case	DO-204AH, DO-35, Axial	DO-204AH, DO-35, Axial	DO-204AH, DO-35, Axial	DO-204AH, DO-35, Axial	DO-204AH, DO-35, Axial
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Voltage - Forward (Vf) (Max) @ If	1.5 V @ 100 mA	1.5 V @ 100 mA	1.1 V @ 200 mA	1.5 V @ 200 mA	1.5 V @ 200 mA
Product Status	Obsolete	Active	Active	Active	Active
Operating Temperature	200°C (TJ)	-65°C ~ 175°C (TJ)	-65°C ~ 175°C	-65°C ~ 175°C	-65°C ~ 175°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: BZX79C9V1

The BZX79C9V1 manufactured by Taiwan Semiconductor Corporation is the direct functional equivalent to the 1N4696-TP. This part maintains identical electrical specifications (9.1 V, 500 mW, ±5% tolerance) and package configuration. The BZX79C9V1 is active in production with ROHS3 compliance and REACH unaffected status, ensuring long-term availability and regulatory alignment.

Secondary Recommendation: TZX9V1A-TR

The TZX9V1A-TR from Vishay General Semiconductor offers equivalent electrical performance with automotive-grade qualification (AEC-Q101) and ROHS3 compliance. This variant is suitable for applications requiring automotive-level reliability and is available in cut tape packaging with substantial inventory. The TZX9V1A-TAP variant provides identical electrical specifications with alternative packaging.

Alternative: 1N5999B

The 1N5999B from Microchip Technology meets core electrical requirements but carries RoHS non-compliance status. This part is suitable only for legacy systems or applications where RoHS compliance is not mandated. Selection of this part requires explicit compliance verification against project requirements.

Frequently Asked Questions (FAQ)

Q: Can the BZX79C9V1 directly replace the 1N4696-TP in existing designs?

A: Yes. The BZX79C9V1 maintains identical zener voltage (9.1 V), power rating (500 mW), tolerance (±5%), and DO-35 axial package configuration. No circuit modifications are required.

Q: What is the primary difference between TZX9V1A-TAP and TZX9V1A-TR?

A: Both parts are electrically identical with 9.1 V zener voltage and 500 mW power rating. The difference is packaging format: TZX9V1A-TAP is supplied in tape and reel format, while TZX9V1A-TR is supplied in cut tape format.

Q: Why is the 1N5999B listed as an alternative if it is RoHS non-compliant?

A: The 1N5999B meets all core electrical and mechanical substitution criteria. However, RoHS compliance status must be evaluated against specific project requirements. For new designs or applications subject to RoHS regulations, BZX79C9V1 or TZX9V1A variants are preferred.

Q: Are there differences in reverse leakage current between substitute parts?

A: Yes. Reverse leakage varies across manufacturers: 1N4696-TP specifies 1 µA @ 6.9 V, BZX79C9V1 specifies 500 nA @ 6 V, and 1N5999B specifies 100 nA @ 7 V. These variations do not affect substitution eligibility but may influence performance in high-impedance circuits.

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

A: Yes. All substitute parts use identical DO-35 axial through-hole package dimensions and pin configuration, permitting direct PCB footprint compatibility without layout modifications.

Q: What is the significance of the AEC-Q101 qualification on TZX9V1A variants?

A: AEC-Q101 qualification indicates automotive-grade reliability testing and is applicable for automotive and high-reliability applications. This certification is not required for general industrial or consumer applications.

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