ZMM5234B-13 Equivalent & Substitute Parts

Part Overview

The ZMM5234B-13 is a 6.2 V Zener diode rated at 500 mW, manufactured by Vishay General Semiconductor - Diodes Division in DO-213AA surface mount package. This part is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The ZMM5234B-13 operates across the temperature range of -65°C to 175°C and complies with ROHS3 standards. Substitute parts must maintain electrical equivalence in voltage regulation, power dissipation, and thermal performance while meeting current availability and qualification requirements.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	6.2	V
Tolerance	±5%	—
Power - Max	500	mW
Impedance (Max)	7	Ohms
Current - Reverse Leakage @ Vr	5	µA @ 4 V
Voltage - Forward (Vf) (Max) @ If	1.5	V @ 200 mA
Operating Temperature	-65 to 175	°C
Mounting Type	Surface Mount	—
Package / Case	DO-213AA	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the ZMM5234B-13 are selected based on strict electrical and mechanical parameter matching. All substitute parts maintain the following critical parameters:

Zener Voltage (Vz): 6.2 V nominal
Power Rating: 500 mW maximum
Package: DO-213AA surface mount
Operating Temperature Range: -65°C to 175°C
Impedance (Zzt): 7 Ohms maximum
Reverse Leakage Current: 5 µA
RoHS Compliance: ROHS3 Compliant

Substitute parts are grouped by tolerance specification (±5%, ±2%, ±1%) and military qualification grade (JAN, JANTX, JANTXV). All substitute parts are manufactured by Microchip Technology and carry active product status with MIL-PRF-19500/127 qualification. Tolerance variations represent tighter voltage regulation specifications while maintaining full electrical compatibility with the original ZMM5234B-13 application requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vz (V)	Tolerance	Power (mW)	Zzt (Ohms)	Vf @ 200mA (V)	Product Status	Grade	Qualification
ZMM5234B-13	Vishay General Semiconductor	6.2	±5%	500	7	1.5	Obsolete	—	—
JAN1N753AUR-1/TR	Microchip Technology	6.2	±5%	500	7	1.1	Active	Military	MIL-PRF-19500/127
JAN1N753CUR-1/TR	Microchip Technology	6.2	±2%	500	7	1.1	Active	Military	MIL-PRF-19500/127
JAN1N753DUR-1/TR	Microchip Technology	6.2	±1%	500	7	1.1	Active	Military	MIL-PRF-19500/127
JANTX1N753CUR-1/TR	Microchip Technology	6.2	±2%	500	7	1.1	Active	Military	MIL-PRF-19500/127
JANTX1N753DUR-1/TR	Microchip Technology	6.2	±1%	500	7	1.1	Active	Military	MIL-PRF-19500/127
JANTXV1N753AUR-1/TR	Microchip Technology	6.2	±5%	500	7	1.1	Active	Military	MIL-PRF-19500/127
JANTXV1N753CUR-1/TR	Microchip Technology	6.2	±2%	500	7	1.1	Active	Military	MIL-PRF-19500/127
JANTXV1N753DUR-1/TR	Microchip Technology	6.2	±1%	500	7	1.1	Active	Military	MIL-PRF-19500/127

Engineering Selection Recommendations

All listed substitute parts are manufactured by Microchip Technology and carry active product status, ensuring long-term availability and supply chain continuity. The ZMM5234B-13 is classified as obsolete, making these active alternatives necessary for production continuity.

For direct replacement with matching tolerance (±5%): Select JAN1N753AUR-1/TR or JANTXV1N753AUR-1/TR. Both maintain the original ±5% tolerance specification while providing improved forward voltage characteristics (1.1 V versus 1.5 V at 200 mA).

For applications requiring tighter voltage regulation (±2%): Select JAN1N753CUR-1/TR, JANTX1N753CUR-1/TR, or JANTXV1N753CUR-1/TR. These parts provide enhanced voltage stability with ±2% tolerance.

For applications requiring maximum voltage precision (±1%): Select JAN1N753DUR-1/TR, JANTX1N753DUR-1/TR, or JANTXV1N753DUR-1/TR. These parts deliver the tightest voltage regulation at ±1% tolerance.

All substitute parts comply with ROHS3 standards, carry MIL-PRF-19500/127 military qualification, and operate across the full -65°C to 175°C temperature range. The DO-213AA package and 500 mW power rating remain consistent across all alternatives, ensuring mechanical and thermal compatibility with existing PCB designs.

Frequently Asked Questions (FAQ)

Q: Can JAN1N753AUR-1/TR directly replace ZMM5234B-13 in production?

A: Yes. JAN1N753AUR-1/TR maintains identical electrical specifications: 6.2 V nominal zener voltage, ±5% tolerance, 500 mW power rating, 7 Ohms impedance, and DO-213AA surface mount package. The part is active and carries MIL-PRF-19500/127 qualification.

Q: What is the difference between JAN, JANTX, and JANTXV grade designations?

A: These designations indicate military qualification levels. JAN represents standard military grade, JANTX represents extended temperature military grade, and JANTXV represents extended temperature with additional screening. All three grades maintain identical electrical parameters for the 1N753 zener diode series.

Q: Are the ±2% and ±1% tolerance parts backward compatible with ±5% applications?

A: Yes. Parts with tighter tolerance specifications (±2% and ±1%) are electrically compatible with applications designed for ±5% tolerance. The tighter tolerance represents an enhanced specification that exceeds the original requirement.

Q: Does the forward voltage difference (1.5 V versus 1.1 V) affect circuit compatibility?

A: Forward voltage is specified at 200 mA forward current and applies to forward-biased operation. For zener diode applications operating in reverse-bias (voltage regulation mode), forward voltage does not affect circuit performance. All substitute parts maintain identical reverse-bias zener voltage and impedance specifications.

Q: Are all substitute parts available in Tape & Reel packaging?

A: Yes. All substitute parts listed are supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes.

Q: What is the reverse leakage current specification for substitute parts?

A: All substitute parts specify 5 µA reverse leakage current at 3.5 V, compared to the original ZMM5234B-13 specification of 5 µA at 4 V. This represents equivalent leakage performance across the specified voltage range.

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