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 1N750C

Name: 1N750C
Brand: Microchip Technology
SKU: 1N750C
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: 1N750C

Manufacturer:: Microchip Technology

Category:: Single Zener Diodes

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

Datasheet:: 1N750C.pdf

Description:: DIODE ZENER 4.7V 500MW DO204AH

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:7,487

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

Product details

Overview

1N750C from Microsemi is a 500 mW, 4.7 V ±2% tolerance silicon Zener diode in DO-35 (DO-204AH) glass axial-leaded package, qualified to JANTX level per MIL-PRF-19500/127, with dynamic impedance of 15 Ω at 20 mA and temperature coefficient of -0.043%/°C at 25°C, used for precision voltage regulation in military power supplies and analog reference circuits.

For engineers reviewing the 1N750C datasheet, 1N750C pinout, 1N750C application, or 1N750C equivalent, key selection criteria include Zener voltage tolerance (±2%), junction-to-lead thermal resistance (250°C/W), reverse leakage current (5 µA at 1.5 V), maximum Zener current (50 mA), and RoHS compliance status on commercial-grade variants.

Technical Context

The 1N750C operates as a two-terminal shunt voltage regulator, maintaining stable 4.7 V output across load and line variations by conducting reverse current above its breakdown threshold. Its metallurgically bonded junction ensures low noise, minimal capacitance, and radiation hardness per MicroNote 050.

It exhibits a negative temperature coefficient (-0.043%/°C) below 5 V, enabling predictable drift compensation in temperature-sensitive references. The device is rated for operation from -65°C to +175°C and supports soldering at 260°C for 10 seconds per MIL-STD-750.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage V_Z	4.7 V ±2% at I_ZT = 20 mA - defines nominal regulation point with tight tolerance for stable reference generation
Zener Impedance Z_ZT	15 Ω at I_ZT = 20 mA - determines output voltage variation under load current changes
Reverse Leakage I_R	5 µA at V_R = 1.5 V - ensures low standby power loss in high-impedance bias networks
Max Power Dissipation	500 mW at T_L = 50°C - sets thermal design limit for lead-mounted operation
Temp Coefficient αV_Z	-0.043 %/°C at 25°C - enables predictable voltage drift modeling over industrial/military temperature ranges
Junction-to-Lead R_θJL	250 °C/W - governs thermal rise from junction to lead, critical for reliability in sealed enclosures
Forward Voltage V_F	1.1 V at I_F = 200 mA - defines conduction drop when used in forward-biased protection paths

Pinout & Package

Hermetically sealed axial-leaded DO-35 (DO-204AH) glass package with cathode indicated by 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	Non-banded end	Connected to lower-potential node; carries forward current or reverse leakage when cathode is biased positive
Cathode	Banded end	Connected to regulated voltage node; conducts reverse current to clamp voltage at V_Z = 4.7 V

Key Features

Feature	Design Value
MIL-PRF-19500/127 qualification	JANTX-level screening ensures reliability for aerospace and defense systems requiring extended life and burn-in validation
Metallurgical bond construction	Eliminates wire bonds, reducing failure modes and improving vibration/shock resilience in harsh environments
Low dynamic impedance	15 Ω enables <10 mV regulation error over 5–50 mA load current range in precision analog circuits
Radiation hardness	Inherent tolerance to total ionizing dose (TID) per MicroNote 050 supports use in space-qualified subsystems
ESD immunity	Non-sensitive per MIL-STD-750 method 1020 - eliminates need for external ESD protection in board-level integration

Applications

Avionics Power Reference	Military Radio Bias Network
Use Scenario: Providing stable 4.7 V reference for ADCs and op-amp comparators in airborne navigation units operating from -55°C to +125°C. IC Role / Device Role / Timing Role: Shunt voltage regulator establishing precise DC bias point independent of input rail fluctuations. Use Value: ±2% tolerance and -0.043%/°C TC ensure reference drift remains within 15 mV over full temperature range.	Use Scenario: Setting bias voltage for RF amplifier stages in manpack radios exposed to shock, vibration, and wide ambient swings. IC Role / Device Role / Timing Role: Zener clamp regulating local supply rail to maintain consistent gain and linearity in RF front-end transistors. Use Value: Metallurgical bond and MIL-qualified construction prevent parametric shift after mechanical stress cycling.
Spacecraft Sensor Interface	Industrial PLC Analog Input
Use Scenario: Supplying excitation voltage to radiation-hardened pressure transducers aboard LEO satellites. IC Role / Device Role / Timing Role: Low-noise, low-capacitance voltage reference isolating sensitive sensor signals from noisy power domains. Use Value: Inherent radiation hardness per MicroNote 050 avoids single-event latchup or parametric degradation in orbit.	Use Scenario: Generating calibrated reference for 4–20 mA loop-powered analog input modules in factory automation cabinets. IC Role / Device Role / Timing Role: Precision shunt regulator stabilizing internal reference against 12–36 V unregulated field power rails. Use Value: 500 mW rating and 250°C/W R_θJL allow direct PCB mounting without heatsinking in confined enclosures.

Avionics Power Reference

Military Radio Bias Network

Use Scenario: Providing stable 4.7 V reference for ADCs and op-amp comparators in airborne navigation units operating from -55°C to +125°C.

IC Role / Device Role / Timing Role: Shunt voltage regulator establishing precise DC bias point independent of input rail fluctuations.

Use Value: ±2% tolerance and -0.043%/°C TC ensure reference drift remains within 15 mV over full temperature range.

Use Scenario: Setting bias voltage for RF amplifier stages in manpack radios exposed to shock, vibration, and wide ambient swings.

IC Role / Device Role / Timing Role: Zener clamp regulating local supply rail to maintain consistent gain and linearity in RF front-end transistors.

Use Value: Metallurgical bond and MIL-qualified construction prevent parametric shift after mechanical stress cycling.

Spacecraft Sensor Interface

Industrial PLC Analog Input

Use Scenario: Supplying excitation voltage to radiation-hardened pressure transducers aboard LEO satellites.

IC Role / Device Role / Timing Role: Low-noise, low-capacitance voltage reference isolating sensitive sensor signals from noisy power domains.

Use Value: Inherent radiation hardness per MicroNote 050 avoids single-event latchup or parametric degradation in orbit.

Use Scenario: Generating calibrated reference for 4–20 mA loop-powered analog input modules in factory automation cabinets.

IC Role / Device Role / Timing Role: Precision shunt regulator stabilizing internal reference against 12–36 V unregulated field power rails.

Use Value: 500 mW rating and 250°C/W R_θJL allow direct PCB mounting without heatsinking in confined enclosures.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
1N750A	±5% Zener tolerance vs. 1N750C's ±2%; identical package, thermal, and electrical specs otherwise	Suitable where tighter regulation not required; lower cost for non-critical biasing	Select 1N750A only if system-level calibration compensates for wider V_Z spread
BZX55C4V7	Commercial-grade, ±5% tolerance, DO-35 package, 500 mW rating; no MIL qualification or radiation data	Applicable in commercial industrial controls but not certified for defense/aerospace deployment	Choose BZX55C4V7 only for cost-sensitive, non-military designs with relaxed reliability requirements

Compared with 1N750A and BZX55C4V7, the 1N750C delivers tighter voltage control and verified military screening-critical when reference stability and long-term parametric consistency directly impact system accuracy and certification compliance.

Availability

1N750C is available at Aetrix Electronics and suitable for avionics power references, military radio bias networks, spacecraft sensor interfaces, and industrial PLC analog inputs requiring stable component supply with traceable MIL-qualified sourcing.

Supply support for 1N750C 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) designs high-reliability semiconductors for aerospace, defense, and industrial markets, emphasizing radiation tolerance, extended temperature operation, and military qualification.

The 1N750C belongs to Microsemi's legacy MIL-PRF-19500/127 qualified Zener diode family, engineered specifically for precision voltage regulation in mission-critical analog and power subsystems where parametric stability under stress is non-negotiable.

FAQ

What is the Zener voltage tolerance of the 1N750C?

The 1N750C has a nominal Zener voltage of 4.7 V with a tolerance of ±2%, as indicated by the "C" suffix in its part number per Microsemi's nomenclature. This tighter tolerance enables higher accuracy in voltage reference and biasing applications compared to standard ±5% variants like the 1N750A. The 1N750C maintains this specification at I_ZT = 20 mA and T_A = 25°C, and is validated across its full military temperature range.

Is the 1N750C RoHS compliant?

The 1N750C is available in both RoHS-compliant and non-RoHS versions; RoHS compliance is indicated by the "e3" suffix in the full part number (e.g., 1N750C-1e3) and applies only to commercial-grade variants. JANTX-qualified 1N750C units are not RoHS compliant due to tin-lead plating requirements for military screening. Always verify the full orderable part number and datasheet revision to confirm compliance status for your build.

What is the maximum power dissipation of the 1N750C?

The 1N750C has an average rated power dissipation of 500 mW at a lead temperature (T_L) of +50°C with 0.375 inch lead length from the body. This derates linearly to zero at +175°C. When mounted on a PCB, its power rating drops to 400 mW at +55°C ambient, per Figure 2 in T4-LDS-0288. Thermal design must account for R_θJL = 250°C/W and R_θJA = 300°C/W to avoid exceeding junction limits.

Does the 1N750C have radiation hardness data?

Yes, the 1N750C exhibits inherent radiation hardness as documented in Microsemi MicroNote 050. Its metallurgically bonded construction and DO-35 glass package contribute to tolerance against total ionizing dose (TID), making it suitable for low-earth orbit (LEO) and other radiation-prone environments. No additional radiation testing or upscreening is required beyond standard JANTX qualification for most space-qualified subsystems using the 1N750C.

How is polarity marked on the 1N750C?

The 1N750C uses a cathode band to indicate polarity: the banded end is the cathode and must be connected to the higher-potential node for proper Zener regulation. When operated in reverse breakdown, current flows into the cathode and out of the anode (non-banded end). Forward conduction occurs with the anode positive relative to the cathode, exhibiting V_F = 1.1 V at 200 mA. This marking aligns with JEDEC DO-35 standards and is visible on the glass body.

1N750C Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: -

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

Packaging:: Bulk

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 4.7 V

Tolerance:: ±2%

Power - Max:: 500 mW

Impedance (Max) (Zzt):: 19 Ohms

Current - Reverse Leakage @ Vr:: 2 µA @ 1 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)

1N750C FAQ

1.How can I place an order for 1N750C through Aetrix?

Please submit a Request for Quotation (RFQ) for 1N750C 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 1N750C reliable?

The price and inventory of 1N750C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N750C is usually 5 days.

3.What payment methods are accepted for 1N750C?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N750C transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1N750C?

1N750C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1N750C 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 1N750C?

For technical support, including 1N750C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N750C requirements.

6.How does Aetrix verify that 1N750C is sourced from the original manufacturer or authorized distributors?

All 1N750C 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 1N750C meets industry standards.

7.What is the process for return or replacement of 1N750C?

All 1N750C units undergo pre-shipment inspection (PSI). If there is an issue with 1N750C, 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 1N750C part is unused and in its original packaging.

Return procedure for 1N750C:

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…