ZMM5236B-7 Equivalent & Substitute Parts

Part Overview

The ZMM5236B-7 is a Zener diode rated at 7.5 V nominal with 500 mW power dissipation, manufactured by Vishay General Semiconductor - Diodes Division in DO-213AA surface mount package. This part is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for production and field replacement applications. All substitute parts listed maintain electrical and mechanical compatibility with the original specification.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	7.5	V
Power - Max	500	mW
Tolerance	±5% (standard)	%
Impedance (Max)	6	Ohms
Operating Temperature Range	-65 to 175	°C
Mounting Type	Surface Mount
Package / Case	DO-213AA
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the ZMM5236B-7 are qualified based on the following criteria:

Electrical Parameters (Must Match):

Voltage - Zener (Nom): 7.5 V
Power - Max: 500 mW
Impedance (Max): 6 Ohms
Operating Temperature Range: -65°C to 175°C
Package / Case: DO-213AA

Tolerance Variants: Substitute parts are available in three tolerance grades: ±5%, ±2%, and ±1%. All tolerance variants meet the electrical requirements and are functionally interchangeable.

Qualification Grades: All substitute parts are manufactured by Microchip Technology and carry military-grade qualification (MIL-PRF-19500/127), providing enhanced reliability compared to the obsolete Vishay original.

Packaging: All substitutes are supplied in Tape & Reel (TR) format, suitable for automated assembly processes.

Parameter Comparison

Part Number	Manufacturer	Vz (Nom)	Tolerance	Power Max	Zzt (Max)	Vf (Max) @ If	Ir @ Vr	Grade	Status
ZMM5236B-7	Vishay	7.5 V	±5%	500 mW	6 Ω	1.5 V @ 200 mA	3 µA @ 6 V	Commercial	Obsolete
JAN1N755AUR-1/TR	Microchip	7.5 V	±5%	500 mW	6 Ω	1.1 V @ 200 mA	2 µA @ 5 V	Military	Active
JAN1N755CUR-1/TR	Microchip	7.5 V	±2%	500 mW	6 Ω	1.1 V @ 200 mA	2 µA @ 5 V	Military	Active
JAN1N755DUR-1/TR	Microchip	7.5 V	±1%	500 mW	6 Ω	1.1 V @ 200 mA	2 µA @ 5 V	Military	Active
JANTX1N755CUR-1/TR	Microchip	7.5 V	±2%	500 mW	6 Ω	1.1 V @ 200 mA	2 µA @ 5 V	Military	Active
JANTX1N755DUR-1/TR	Microchip	7.5 V	±1%	500 mW	6 Ω	1.1 V @ 200 mA	2 µA @ 5 V	Military	Active
JANTXV1N755AUR-1/TR	Microchip	7.5 V	±5%	500 mW	6 Ω	1.1 V @ 200 mA	2 µA @ 5 V	Military	Active
JANTXV1N755CUR-1/TR	Microchip	7.5 V	±2%	500 mW	6 Ω	1.1 V @ 200 mA	2 µA @ 5 V	Military	Active
JANTXV1N755DUR-1/TR	Microchip	7.5 V	±1%	500 mW	6 Ω	1.1 V @ 200 mA	2 µA @ 5 V	Military	Active

Engineering Selection Recommendations

For Direct Replacement (Matched Tolerance): Select JAN1N755AUR-1/TR, JANTXV1N755AUR-1/TR for ±5% tolerance matching. Both parts are active production items with military-grade qualification and provide superior reverse leakage characteristics (2 µA vs. 3 µA) and lower forward voltage drop (1.1 V vs. 1.5 V).

For Enhanced Precision Applications: JAN1N755DUR-1/TR and JANTXV1N755DUR-1/TR offer ±1% tolerance for applications requiring tighter voltage regulation. JANTXV1N755DUR-1/TR includes extended temperature screening per MIL-PRF-19500/127.

For Standard Production: JAN1N755CUR-1/TR and JANTX1N755CUR-1/TR provide ±2% tolerance as a balanced option between cost and precision. All substitute parts are ROHS3 compliant and REACH unaffected.

Compliance Considerations: All substitute parts carry MIL-PRF-19500/127 qualification, providing enhanced reliability margins over the obsolete commercial-grade original. All parts are suitable for applications requiring military or aerospace-grade components.

Frequently Asked Questions (FAQ)

Q: Can JAN1N755DUR-1/TR replace ZMM5236B-7 directly in existing designs?

A: Yes. JAN1N755DUR-1/TR is electrically and mechanically compatible. It maintains the same 7.5 V nominal zener voltage, 500 mW power rating, 6 Ohm impedance, and DO-213AA package. The ±1% tolerance provides tighter voltage regulation than the original ±5% specification.

Q: What is the difference between JAN, JANTX, and JANTXV part number prefixes?

A: These prefixes indicate military qualification screening levels per MIL-PRF-19500/127. JAN represents standard military grade, JANTX includes extended temperature screening, and JANTXV includes extended temperature and voltage screening. All are functionally equivalent for the specified electrical parameters.

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

A: Yes. All substitute parts are supplied in DO-213AA surface mount package in Tape & Reel (TR) format, compatible with automated assembly equipment.

Q: Which substitute part should be selected for applications requiring the tightest voltage tolerance?

A: JAN1N755DUR-1/TR or JANTXV1N755DUR-1/TR, both offering ±1% tolerance. JANTXV1N755DUR-1/TR includes extended temperature and voltage screening for enhanced reliability.

Q: Are the substitute parts RoHS compliant?

A: Yes. All substitute parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the inventory status of substitute parts?

A: All substitute parts are active production items with confirmed stock availability ranging from 714 to 1056 pieces, ensuring supply continuity for production and field replacement requirements.

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