ZMM5232B-13 Equivalent & Substitute Parts

Part Overview

The ZMM5232B-13 is a Zener diode rated at 5.6 V nominal with 500 mW power dissipation, manufactured by Vishay General Semiconductor - Diodes Division. This component is packaged in DO-213AA surface mount configuration with ±5% voltage tolerance. The part is currently obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Key Parameters

Parameter	Value
Voltage - Zener (Nom)	5.6 V
Power - Max	500 mW
Tolerance	±5%
Impedance (Max)	11 Ohms
Current - Reverse Leakage @ Vr	5 µA @ 3 V
Voltage - Forward (Vf) (Max) @ If	1.5 V @ 200 mA
Operating Temperature Range	-65°C ~ 175°C
Mounting Type	Surface Mount
Package / Case	DO-213AA (Glass)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the ZMM5232B-13 is determined by the following critical parameters:

Electrical Compatibility Requirements:

Zener voltage nominal value: 5.6 V
Maximum power dissipation: 500 mW
Maximum impedance: 11 Ohms
Operating temperature range: -65°C ~ 175°C
Package type: DO-213AA surface mount

Tolerance Grouping: Substitute parts are available in three tolerance classes: ±5%, ±2%, and ±1%. All tolerance variants maintain the same nominal voltage and power rating, allowing selection based on application precision requirements.

Military Grade Availability: All substitute parts from Microchip Technology are manufactured to MIL-PRF-19500/127 qualification with active product status, providing long-term availability compared to the obsolete Vishay part.

Parameter Comparison

Part Number	Manufacturer	Vz (Nom)	Tolerance	Power (Max)	Zzt (Max)	Vf (Max) @ If	Operating Temp	Package	Status	Grade
ZMM5232B-13	Vishay	5.6 V	±5%	500 mW	11 Ω	1.5 V @ 200 mA	-65°C ~ 175°C	DO-213AA	Obsolete	Commercial
JAN1N752AUR-1/TR	Microchip	5.6 V	±5%	500 mW	11 Ω	1.1 V @ 200 mA	-65°C ~ 175°C	DO-213AA	Active	Military
JAN1N752CUR-1/TR	Microchip	5.6 V	±2%	500 mW	11 Ω	1.1 V @ 200 mA	-65°C ~ 175°C	DO-213AA	Active	Military
JAN1N752DUR-1/TR	Microchip	5.6 V	±1%	500 mW	11 Ω	1.1 V @ 200 mA	-65°C ~ 175°C	DO-213AA	Active	Military
JANTX1N752CUR-1/TR	Microchip	5.6 V	±2%	500 mW	11 Ω	1.1 V @ 200 mA	-65°C ~ 175°C	DO-213AA	Active	Military
JANTXV1N752AUR-1/TR	Microchip	5.6 V	±5%	500 mW	11 Ω	1.1 V @ 200 mA	-65°C ~ 175°C	DO-213AA	Active	Military
JANTXV1N752CUR-1/TR	Microchip	5.6 V	±2%	500 mW	11 Ω	1.1 V @ 200 mA	-65°C ~ 175°C	DO-213AA	Active	Military
JANTXV1N752DUR-1/TR	Microchip	5.6 V	±1%	500 mW	11 Ω	1.1 V @ 200 mA	-65°C ~ 175°C	DO-213AA	Active	Military

Engineering Selection Recommendations

For Direct Replacement (Matching Tolerance): JAN1N752AUR-1/TR and JANTXV1N752AUR-1/TR are direct electrical equivalents to ZMM5232B-13, both maintaining ±5% tolerance. These parts are manufactured to MIL-PRF-19500/127 military qualification with active product status, ensuring long-term supply availability.

For Enhanced Precision Applications: JAN1N752CUR-1/TR, JANTX1N752CUR-1/TR, and JANTXV1N752CUR-1/TR provide ±2% tolerance, while JAN1N752DUR-1/TR and JANTXV1N752DUR-1/TR offer ±1% tolerance. These variants maintain identical electrical performance across all other parameters while providing tighter voltage regulation characteristics.

For Military and Aerospace Applications: All Microchip substitute parts carry MIL-PRF-19500/127 qualification. JANTX and JANTXV prefixed parts indicate enhanced screening and environmental qualification levels, suitable for demanding operational environments.

Compliance Considerations: All substitute parts are ROHS3 compliant and REACH unaffected, matching the environmental compliance profile of the original ZMM5232B-13. Surface mount DO-213AA packaging is identical across all alternatives, enabling direct PCB-level substitution without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can JAN1N752CUR-1/TR replace ZMM5232B-13 in existing designs? A: Yes. JAN1N752CUR-1/TR maintains identical nominal voltage (5.6 V), power rating (500 mW), impedance (11 Ω), and operating temperature range (-65°C ~ 175°C). The ±2% tolerance is tighter than the original ±5%, providing improved voltage regulation. Package and mounting type are identical (DO-213AA surface mount).

Q: What is the difference between JAN, JANTX, and JANTXV prefixes? A: These prefixes indicate military qualification levels. JAN denotes standard military grade per MIL-PRF-19500/127. JANTX indicates extended temperature screening. JANTXV indicates extended temperature and vibration screening. All three variants are electrically equivalent for the 5.6 V 500 mW application.

Q: Are all substitute parts in active production? A: Yes. All seven substitute parts from Microchip Technology carry active product status, ensuring continued availability. The original ZMM5232B-13 is obsolete, making these alternatives necessary for ongoing production requirements.

Q: Does forward voltage difference affect circuit performance? A: The substitute parts specify 1.1 V forward voltage at 200 mA, compared to 1.5 V for the original part. This represents improved forward conduction characteristics. For Zener diode applications, forward voltage is secondary to reverse-bias Zener regulation performance, which is identical across all parts.

Q: Can I use a ±1% tolerance part in place of ±5%? A: Yes. A ±1% tolerance part (JAN1N752DUR-1/TR or JANTXV1N752DUR-1/TR) is a superior substitute for ±5% applications. The tighter tolerance provides enhanced voltage regulation without any electrical or mechanical incompatibility.

Q: Are these parts suitable for surface mount assembly? A: Yes. All substitute parts are surface mount components in DO-213AA package configuration, identical to the original ZMM5232B-13. No PCB layout or assembly process modifications are required.

Q: What is the reverse leakage current specification difference? A: The original part specifies 5 µA @ 3 V reverse leakage. Substitute parts specify 5 µA @ 2.5 V. This represents equivalent leakage performance measured at a slightly lower reference voltage, with no functional impact on circuit operation.

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