Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Discrete Semiconductor Products > Diodes > Zener > Single Zener Diodes

Microchip Technology 1N753A/TR

Name: 1N753A/TR
Brand: Microchip Technology
SKU: 1N753A/TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: 1N753A/TR

Manufacturer:: Microchip Technology

Category:: Single Zener Diodes

Package:: DO-204AH, DO-35, Axial

Datasheet:: 1N753A/TR.pdf

Description:: DIODE ZENER 6.2V 500MW DO204AH

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:7,067

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

1N753A/TR from Microsemi is a 500 mW, 6.2 V ±5% axial-leaded silicon Zener diode in DO-35 (DO-204AH) glass package, qualified to JANTX level per MIL-PRF-19500/127, with dynamic impedance of 3 Ω at 20 mA and temperature coefficient of +0.045 %/°C - used for precision voltage regulation in military power supplies and analog reference circuits.

For engineers reviewing the 1N753A/TR datasheet, 1N753A/TR pinout, 1N753A/TR application, or 1N753A/TR equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (250 °C/W junction-to-lead), reverse leakage (5 µA at 3.5 V), maximum Zener current (50 mA), and RoHS compliance status (commercial grade only).

Technical Context

The 1N753A/TR operates as a two-terminal voltage reference device, conducting in reverse breakdown to maintain stable 6.2 V across its terminals under varying load and temperature conditions. Its metallurgically bonded junction ensures low noise, minimal capacitance, and inherent radiation hardness per MicroNote 050.

Designed for operation within -65 °C to +175 °C, it delivers regulated output with 3 Ω dynamic impedance at IZT = 20 mA and exhibits a positive temperature coefficient (+0.045 %/°C), making it suitable for temperature-stable biasing and clamping where drift compensation is required.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage V_Z	6.2 V ±5% at I_ZT = 20 mA - defines nominal regulation point with tight production control.
Dynamic Impedance Z_ZT	3 Ω at 20 mA - determines output voltage stability under load transients.
Max Reverse Current I_R	5 µA at V_R = 3.5 V - specifies leakage before breakdown, critical for low-power standby circuits.
Power Dissipation P_M(AV)	500 mW at T_L = 50 °C (0.375″ lead length) - sets thermal design margin for through-hole mounting.
Temp Coefficient αV_Z	+0.045 %/°C - enables predictable voltage drift over temperature for compensated references.
Junction-to-Lead R_θJL	250 °C/W - informs heatsinking requirements when leads serve as thermal path.
Operating Temperature	-65 °C to +175 °C - supports extended-range deployment in aerospace and defense systems.

Pinout & Package

DO-35 (DO-204AH) hermetically sealed axial-leaded glass package with cathode indicated by colored band; leads are tin-lead or RoHS-compliant matte-tin plated, solderable per MIL-STD-750 method 2026.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward conduction terminal / Zener cathode reference ground	Connected to circuit ground or lower-potential node during Zener operation; forward voltage ≤1.1 V at 200 mA.
Cathode	Regulated output terminal / Zener breakdown anode	Banded end; connected to higher-potential node; maintains 6.2 V relative to anode in reverse bias.

Key Features

Feature	Design Value
MIL-PRF-19500/127 qualification	JANTX-level reliability verified for high-reliability military and aerospace applications.
Metallurgical bond construction	Enables low-noise regulation and inherent radiation hardness per MicroNote 050.
Low dynamic impedance	3 Ω at 20 mA ensures minimal output voltage variation under load changes.
ESD robustness	Non-sensitive to ESD per MIL-STD-750 method 1020 - simplifies handling and assembly.
Minimal capacitance	Supports high-frequency decoupling and fast transient response in analog signal paths.

Applications

Avionics Power Conditioning	Military Radio Bias Networks
Use Scenario: Regulating reference voltage for analog-to-digital converter (ADC) front-end in airborne telemetry units operating across -55 °C to +125 °C. IC Role / Device Role / Timing Role: Two-terminal shunt voltage reference providing stable 6.2 V supply to op-amp biasing and sensor excitation circuits. Use Value: Maintains <±1% output stability over temperature due to +0.045 %/°C coefficient and low ZZT, ensuring ADC accuracy.	Use Scenario: Clamping and overvoltage protection for RF power amplifier bias rails in HF/VHF tactical radios exposed to ESD and thermal cycling. IC Role / Device Role / Timing Role: Shunt regulator absorbing transient surges while holding bias voltage steady during modulation peaks. Use Value: Withstands 50 mA max Zener current and 250 °C/W thermal resistance, enabling reliable operation without external heatsinking.
Spacecraft Sensor Interfaces	Industrial PLC Analog Input Modules
Use Scenario: Providing radiation-hardened voltage reference for temperature and pressure transducer signal conditioning in LEO satellite subsystems. IC Role / Device Role / Timing Role: Precision Zener reference replacing active regulators where single-point failure modes must be avoided. Use Value: Inherent radiation hardness and -65 °C to +175 °C range eliminate need for shielding or derating in vacuum environments.	Use Scenario: Stabilizing 24 V DC input rails against line fluctuations in programmable logic controller analog input stages. IC Role / Device Role / Timing Role: Low-capacitance shunt regulator protecting downstream instrumentation amplifiers from overvoltage events. Use Value: 5 µA reverse leakage at 3.5 V minimizes quiescent current draw, preserving system efficiency in always-on industrial controllers.

Avionics Power Conditioning

Military Radio Bias Networks

Use Scenario: Regulating reference voltage for analog-to-digital converter (ADC) front-end in airborne telemetry units operating across -55 °C to +125 °C.

IC Role / Device Role / Timing Role: Two-terminal shunt voltage reference providing stable 6.2 V supply to op-amp biasing and sensor excitation circuits.

Use Value: Maintains <±1% output stability over temperature due to +0.045 %/°C coefficient and low ZZT, ensuring ADC accuracy.

Use Scenario: Clamping and overvoltage protection for RF power amplifier bias rails in HF/VHF tactical radios exposed to ESD and thermal cycling.

IC Role / Device Role / Timing Role: Shunt regulator absorbing transient surges while holding bias voltage steady during modulation peaks.

Use Value: Withstands 50 mA max Zener current and 250 °C/W thermal resistance, enabling reliable operation without external heatsinking.

Spacecraft Sensor Interfaces

Industrial PLC Analog Input Modules

Use Scenario: Providing radiation-hardened voltage reference for temperature and pressure transducer signal conditioning in LEO satellite subsystems.

IC Role / Device Role / Timing Role: Precision Zener reference replacing active regulators where single-point failure modes must be avoided.

Use Value: Inherent radiation hardness and -65 °C to +175 °C range eliminate need for shielding or derating in vacuum environments.

Use Scenario: Stabilizing 24 V DC input rails against line fluctuations in programmable logic controller analog input stages.

IC Role / Device Role / Timing Role: Low-capacitance shunt regulator protecting downstream instrumentation amplifiers from overvoltage events.

Use Value: 5 µA reverse leakage at 3.5 V minimizes quiescent current draw, preserving system efficiency in always-on industrial controllers.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener regulation applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
1N4735A	Same 6.2 V nominal rating but ±5% tolerance, 500 mW, DO-41 package; no MIL qualification.	Commercial-only use; lacks JANTX reliability screening and radiation hardness.	Select when cost sensitivity outweighs military-grade assurance and environmental ruggedness.
BZX55C6V2	6.2 V ±5%, 500 mW, DO-35 package, AEC-Q200 qualified; tighter IR spec (≤10 µA @ 4.96 V).	Automotive-grade alternative with automotive qualification but no MIL-PRF-19500 compliance.	Choose for automotive ECUs requiring DO-35 form factor and extended temperature validation, not military specs.

Compared with 1N753A/TR, 1N4735A offers identical electrical regulation but lacks military qualification and radiation hardness, while BZX55C6V2 provides automotive validation and similar packaging but omits JANTX-level screening - both require requalification if substituting into legacy MIL-SPEC designs.

Availability

1N753A/TR is available at Aetrix Electronics and suitable for avionics power conditioning, military radio bias networks, and spacecraft sensor interfaces requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for 1N753A/TR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Microsemi Corporation (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog, mixed-signal, and radiation-hardened components for defense, aerospace, and industrial markets.

The 1N753A/TR belongs to Microsemi's legacy MIL-PRF-19500/127-qualified Zener diode family, engineered for precision voltage regulation in mission-critical systems where reliability, temperature stability, and environmental resilience are mandatory.

FAQ

What is the Zener voltage tolerance of the 1N753A/TR?

The 1N753A/TR has a nominal Zener voltage of 6.2 V with a tolerance of ±5%, as indicated by the "A" suffix in its part number per Microsemi's nomenclature. This tolerance applies at 25 °C with I_ZT = 20 mA and is maintained across the full military temperature range (-65 °C to +175 °C) under specified test conditions. The 1N753A/TR does not offer tighter 2% or 1% tolerances - those require different suffixes (C or D) and are not applicable to this specific variant.

Is the 1N753A/TR RoHS compliant?

The 1N753A/TR is RoHS compliant only in its commercial-grade version, as stated in the datasheet. However, the "TR" suffix denotes tape-and-reel packaging per EIA-296 and does not indicate RoHS status. Since the part is qualified to JANTX level (military specification), it uses standard tin-lead plating unless explicitly ordered with e3 marking. Therefore, standard 1N753A/TR is not RoHS compliant; RoHS compliance requires ordering the commercial-grade variant with e3 suffix (e.g., 1N753A-1e3/TR).

What is the maximum Zener current rating for the 1N753A/TR?

The maximum Zener current (I_ZM) for the 1N753A/TR is 50 mA, derived from its 500 mW power rating and 6.2 V nominal Zener voltage (P = V × I). This rating assumes operation at T_L = 50 °C with 0.375 inch lead length; current must be derated linearly above that temperature, reaching zero at 175 °C. The 1N753A/TR is not rated for surge currents beyond repetitive DC operation - I_ZSM is not specified in the datasheet.

Does the 1N753A/TR have a positive or negative temperature coefficient?

Yes, the 1N753A/TR has a positive temperature coefficient of +0.045 %/°C at 25 °C, meaning its Zener voltage increases predictably with rising temperature. This behavior is typical for Zener diodes in the 5–6 V range and enables stable reference generation when combined with complementary negative-coefficient components. The coefficient remains consistent up to +150 °C, supporting accurate thermal compensation in precision analog circuits using the 1N753A/TR.

What package type is used for the 1N753A/TR?

The 1N753A/TR uses the DO-35 (also designated DO-204AH) hermetically sealed axial-leaded glass package. It features a cylindrical glass body with tinned copper alloy leads, cathode identified by a visible color band, and total weight of approximately 0.2 grams. The package dimensions conform to JEDEC standards, with body diameter 1.40–2.29 mm and overall length 25.4–38.1 mm, optimized for through-hole mounting and high-reliability thermal performance.

1N753A/TR Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: -

Package/Case:: DO-204AH, DO-35, Axial

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 6.2 V

Tolerance:: ±5%

Power - Max:: 500 mW

Impedance (Max) (Zzt):: 7 Ohms

Current - Reverse Leakage @ Vr:: 5 µA @ 3.5 V

Voltage - Forward (Vf) (Max) @ If:: 1.1 V @ 200 mA

Operating Temperature:: -65°C ~ 175°C

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-204AH (DO-35)

1N753A/TR FAQ

1.How can I place an order for 1N753A/TR through Aetrix?

Please submit a Request for Quotation (RFQ) for 1N753A/TR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for 1N753A/TR reliable?

The price and inventory of 1N753A/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N753A/TR is usually 5 days.

3.What payment methods are accepted for 1N753A/TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N753A/TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1N753A/TR?

1N753A/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1N753A/TR order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for 1N753A/TR?

For technical support, including 1N753A/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N753A/TR requirements.

6.How does Aetrix verify that 1N753A/TR is sourced from the original manufacturer or authorized distributors?

All 1N753A/TR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 1N753A/TR meets industry standards.

7.What is the process for return or replacement of 1N753A/TR?

All 1N753A/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N753A/TR, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The 1N753A/TR part is unused and in its original packaging.

Return procedure for 1N753A/TR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…