1N4699-TP Zener Diode 12V 500mW DO-35 Equivalent & Substitute Parts

Part Overview

The 1N4699-TP is a through-hole zener diode rated at 12 V nominal with 500 mW power dissipation in a DO-35 axial package. Manufactured by Micro Commercial Co, this component is classified as obsolete. Due to its obsolete status, equivalent substitute parts from active manufacturers are necessary to maintain design continuity and ensure ongoing component availability for production and repair applications.

Key Parameters

Parameter	Value
Voltage - Zener (Nom)	12 V
Tolerance	±5%
Power - Max	500 mW
Current - Reverse Leakage @ Vr	50 nA @ 9.1 V
Voltage - Forward (Vf) (Max) @ If	1.5 V @ 100 mA
Mounting Type	Through Hole
Package / Case	DO-204AH, DO-35, Axial
Operating Temperature	200°C (TJ)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the 1N4699-TP is determined by the following critical parameters:

Electrical Equivalence Criteria:

Voltage - Zener (Nom): 12 V
Power - Max: 500 mW
Package / Case: DO-204AH, DO-35, Axial
Mounting Type: Through Hole

Compliance Criteria:

RoHS3 Compliance
ECCN: EAR99
HTSUS: 8541.10.0050

Substitute parts must maintain identical zener voltage and power ratings to ensure functional compatibility. All identified substitutes operate at 12 V nominal zener voltage with 500 mW maximum power dissipation in the same DO-35 axial through-hole package. Variations in reverse leakage current, forward voltage characteristics, and impedance are acceptable within the scope of zener diode application requirements, provided the core electrical specifications remain equivalent.

Parameter Comparison

Part Number	Manufacturer	Product Status	Vz (Nom)	Tolerance	Power - Max	Ir @ Vr	Vf (Max) @ If	Operating Temp	Package	RoHS Status
1N4699-TP	Micro Commercial Co	Obsolete	12 V	±5%	500 mW	50 nA @ 9.1 V	1.5 V @ 100 mA	200°C (TJ)	DO-35	ROHS3 Compliant
1N4699 TR PBFREE	Central Semiconductor Corp	Active	12 V	±5%	500 mW	50 nA @ 9.1 V	1.5 V @ 100 mA	-65°C ~ 200°C (TJ)	DO-35	ROHS3 Compliant
1N6002B	Microchip Technology	Active	12 V	±5%	500 mW	100 nA @ 9.1 V	1.1 V @ 200 mA	-65°C ~ 175°C	DO-35	RoHS non-compliant
BZX55C12-TR	Vishay General Semiconductor - Diodes Division	Active	12 V	±5%	500 mW	100 nA @ 9.1 V	1.5 V @ 200 mA	-	DO-35	ROHS3 Compliant
TZX12A-TAP	Vishay General Semiconductor - Diodes Division	Active	12 V	-	500 mW	1 µA @ 9.5 V	1.5 V @ 200 mA	-65°C ~ 175°C	DO-35	ROHS3 Compliant
TZX12B-TAP	Vishay General Semiconductor - Diodes Division	Active	12 V	-	500 mW	1 µA @ 9.5 V	1.5 V @ 200 mA	-65°C ~ 175°C	DO-35	ROHS3 Compliant
TZX12B-TR	Vishay General Semiconductor - Diodes Division	Active	12 V	-	500 mW	1 µA @ 9.5 V	1.5 V @ 200 mA	-65°C ~ 175°C	DO-35	ROHS3 Compliant
TZX12C-TAP	Vishay General Semiconductor - Diodes Division	Active	12 V	-	500 mW	1 µA @ 9.5 V	1.5 V @ 200 mA	-65°C ~ 175°C	DO-35	ROHS3 Compliant
TZX12C-TR	Vishay General Semiconductor - Diodes Division	Active	12 V	-	500 mW	1 µA @ 9.5 V	1.5 V @ 200 mA	-65°C ~ 175°C	DO-35	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: 1N4699 TR PBFREE (Central Semiconductor Corp)

The 1N4699 TR PBFREE is the direct equivalent manufactured by Central Semiconductor Corp. This part maintains identical electrical specifications to the original 1N4699-TP, including zener voltage, power rating, tolerance, and reverse leakage current. The part is currently in active production status with ROHS3 compliance. The extended operating temperature range (-65°C to 200°C) provides superior thermal performance compared to the original specification. Packaging in Tape & Reel format supports automated assembly processes.

Secondary Recommendations: BZX55C12-TR, TZX12C-TR, TZX12B-TR (Vishay General Semiconductor - Diodes Division)

These Vishay parts are qualified to AEC-Q101 automotive standards and carry active product status with ROHS3 compliance. The BZX55C12-TR series offers the lowest impedance specification (20 Ohms) among available substitutes. The TZX series (TZX12C-TR, TZX12B-TR) provides automotive-grade reliability with extended temperature range (-65°C to 175°C). All three parts maintain the 12 V zener voltage and 500 mW power rating in DO-35 packaging.

Alternative: 1N6002B (Microchip Technology)

The 1N6002B is functionally equivalent in electrical performance but carries RoHS non-compliant status. This part is suitable only for applications where RoHS compliance is not required. Microchip Technology maintains active production status with extended temperature range (-65°C to 175°C).

Frequently Asked Questions (FAQ)

Q: Can the 1N4699-TP be directly replaced with the 1N4699 TR PBFREE?

A: Yes. The 1N4699 TR PBFREE is the direct equivalent with identical electrical specifications. The primary difference is packaging format (Tape & Reel versus bulk) and active production status. Both parts operate at 12 V nominal zener voltage with 500 mW power dissipation.

Q: What is the difference between the TZX12A-TAP, TZX12B-TAP, and TZX12C-TAP variants?

A: All three TZX variants maintain identical electrical specifications: 12 V zener voltage, 500 mW power rating, and DO-35 packaging. The designations (A, B, C) indicate tolerance grades not specified in the provided data. All are AEC-Q101 qualified automotive-grade components in active production.

Q: Is the BZX55C12-TR suitable for automotive applications?

A: Yes. The BZX55C12-TR carries AEC-Q101 qualification and automotive-grade designation. It maintains 12 V zener voltage and 500 mW power rating in DO-35 packaging with ROHS3 compliance.

Q: Why is the 1N6002B listed as RoHS non-compliant?

A: The 1N6002B does not meet ROHS3 compliance requirements. It is functionally equivalent in electrical performance but is restricted to applications where RoHS compliance is not mandated.

Q: What packaging formats are available for substitute parts?

A: Substitute parts are available in multiple packaging formats: Tape & Reel (TR), Cut Tape (CT), Tape & Box (TB), and Bulk. All maintain the same DO-35 axial through-hole package for circuit board mounting. Packaging format selection depends on assembly process requirements and volume specifications.

Q: Are all substitute parts rated for the same temperature range as the original 1N4699-TP?

A: No. The original 1N4699-TP is rated to 200°C (TJ). Most active substitutes provide extended temperature ranges: Central Semiconductor's 1N4699 TR PBFREE extends to -65°C to 200°C. Vishay TZX and BZX55 series are rated -65°C to 175°C. The 1N6002B is rated -65°C to 175°C. Application requirements determine whether the extended lower temperature limit is necessary.

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

A: Yes. All substitute parts use identical DO-35 axial through-hole packaging with the same lead spacing and polarity. No PCB layout modifications are required for substitution.

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