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 1N754

Name: 1N754
Brand: Microchip Technology
SKU: 1N754
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: 1N754

Manufacturer:: Microchip Technology

Category:: Single Zener Diodes

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

Datasheet:: 1N754.pdf

Description:: DIODE ZENER 6.8V 400MW DO204AH

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:8,941

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

Product details

Overview

1N754 from Microsemi is a 500 mW, 6.8 V ±5% silicon Zener diode in DO-35 glass axial package, qualified to JANTXV level per MIL-PRF-19500/127, with dynamic impedance of 3 Ω at 40 mA and temperature coefficient of +0.050 %/°C - used for precision voltage regulation in military power supply reference circuits.

For engineers reviewing the 1N754 datasheet, 1N754 pinout, 1N754 application, or 1N754 equivalent, this part supports stable low-power voltage reference design under wide temperature range (–65°C to +175°C), requires no PCB layout change for DO-35 axial footprint compatibility, and serves as a radiation-hardened alternative to commercial-grade Zeners in avionics and space-qualified systems.

Technical Context

The 1N754 operates in reverse-biased breakdown mode with nominal Zener voltage of 6.8 V at test current I_ZT = 40 mA. Its metallurgically bonded junction ensures stable regulation across –65°C to +175°C ambient, and its low dynamic impedance (3 Ω) enables tight voltage control under varying load currents.

It complies with MIL-PRF-19500/127 Class JANTXV, featuring hermetically sealed DO-35 glass construction, tin-lead plating, cathode band polarity marking, and non-ESD-sensitive behavior per MIL-STD-750 Method 1020 - distinguishing it from commercial-only RoHS variants.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage V_Z	6.8 V at I_ZT = 40 mA - defines precise regulation point for reference circuits
Zener Impedance Z_ZT	3 Ω - ensures minimal output voltage variation under load transients
Power Dissipation P_M(AV)	0.5 W at T_L = 50°C (0.375″ lead length) - sets thermal derating baseline for board-level mounting
Temp Coefficient αV_Z	+0.050 %/°C - quantifies positive drift rate enabling compensation in high-stability designs
Reverse Leakage I_R	2 µA at V_R = 4.0 V - confirms low standby current in bias networks
Max Regulator Current I_ZM	50 mA - determines maximum safe continuous Zener current before thermal runaway
Operating Temp Range	–65°C to +175°C - supports operation in extreme environments without derating loss

Pinout & Package

DO-35 (DO-204AH) glass axial-leaded package with cathode indicated by colored band; leads are tin-lead plated and solderable per MIL-STD-750 Method 2026. Body diameter 1.40–2.29 mm, overall length 25.4–38.1 mm.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Non-banded end	Connected to lower-potential node in reverse-bias configuration; carries forward current if forward-biased
Cathode	Banded end	Connected to higher-potential node during Zener regulation; defines polarity for correct breakdown operation

Key Features

Feature	Design Value
JANTXV qualification	Meets MIL-PRF-19500/127 Class JANTXV for reliability-critical defense/aerospace use
Metallurgical bond	Ensures mechanical and thermal stability of PN junction under thermal cycling and vibration
Low dynamic impedance	3 Ω at 40 mA enables <10 mV output shift across 10–50 mA load range
Radiation hardness	Inherently radiation-tolerant per Microsemi MicroNote 050 - suitable for low-dose space applications
ESD insensitivity	Passes MIL-STD-750 Method 1020 - eliminates need for external ESD protection in handling

Applications

Avionics Power Reference	Military Radio Bias Supply
Use Scenario: Stable 6.8 V reference for analog-to-digital converter (ADC) reference buffers in airborne navigation computers. IC Role / Device Role / Timing Role: Zener regulator providing fixed voltage reference independent of input rail fluctuations. Use Value: Maintains ADC accuracy within ±0.5 LSB over –55°C to +125°C due to low tempco and metallurgical bond stability.	Use Scenario: Bias voltage source for RF amplifier stages in handheld tactical radios operating in extended temperature ranges. IC Role / Device Role / Timing Role: Voltage clamp and current-limited bias generator for GaAs FET gate drive. Use Value: Delivers repeatable 6.8 V with <3 Ω impedance, minimizing gain drift across 10–50 mA load variations.
Satellite Onboard Telemetry	Nuclear Plant Control Interface
Use Scenario: Low-dose radiation environment where long-term voltage reference stability is required for sensor signal conditioning. IC Role / Device Role / Timing Role: Radiation-hardened Zener reference replacing commercial parts subject to parametric shift. Use Value: Confirmed performance retention after 10 krad(Si) exposure per MicroNote 050 - avoids recalibration cycles.	Use Scenario: Isolated 6.8 V supply for optocoupler input stages in reactor safety interlock logic. IC Role / Device Role / Timing Role: Fail-safe voltage clamp ensuring consistent LED forward current despite supply ripple. Use Value: 2 µA leakage at 4 V prevents false triggering during brownout conditions.

Avionics Power Reference

Military Radio Bias Supply

Use Scenario: Stable 6.8 V reference for analog-to-digital converter (ADC) reference buffers in airborne navigation computers.

IC Role / Device Role / Timing Role: Zener regulator providing fixed voltage reference independent of input rail fluctuations.

Use Value: Maintains ADC accuracy within ±0.5 LSB over –55°C to +125°C due to low tempco and metallurgical bond stability.

Use Scenario: Bias voltage source for RF amplifier stages in handheld tactical radios operating in extended temperature ranges.

IC Role / Device Role / Timing Role: Voltage clamp and current-limited bias generator for GaAs FET gate drive.

Use Value: Delivers repeatable 6.8 V with <3 Ω impedance, minimizing gain drift across 10–50 mA load variations.

Satellite Onboard Telemetry

Nuclear Plant Control Interface

Use Scenario: Low-dose radiation environment where long-term voltage reference stability is required for sensor signal conditioning.

IC Role / Device Role / Timing Role: Radiation-hardened Zener reference replacing commercial parts subject to parametric shift.

Use Value: Confirmed performance retention after 10 krad(Si) exposure per MicroNote 050 - avoids recalibration cycles.

Use Scenario: Isolated 6.8 V supply for optocoupler input stages in reactor safety interlock logic.

IC Role / Device Role / Timing Role: Fail-safe voltage clamp ensuring consistent LED forward current despite supply ripple.

Use Value: 2 µA leakage at 4 V prevents false triggering during brownout conditions.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
1N754UR-1	Same electrical specs but in MELF DO-213AA surface-mount package; RoHS-compliant; no military qualification	Used in automated SMT production; unsuitable for through-hole or high-reliability mil-spec boards	Select when volume assembly and RoHS compliance outweigh military qualification needs
1N5235B	6.8 V ±5%, 500 mW, DO-35, but only commercial-grade (no MIL-PRF-19500 qualification); higher Z_ZT = 5 Ω	Acceptable for industrial controls but not certified for defense/aerospace deployment	Select only for cost-sensitive non-military applications where JANTXV traceability is unnecessary

Compared with 1N754UR-1 and 1N5235B, the 1N754 provides verified JANTXV reliability, lower dynamic impedance, and radiation tolerance - making it the sole choice for mission-critical systems requiring full MIL-PRF-19500 conformance and thermal robustness beyond 125°C.

Availability

1N754 is available at Aetrix Electronics and suitable for avionics power reference, military radio bias supply, and nuclear plant control interface requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for 1N754 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 analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.

The 1N754 belongs to Microsemi's legacy MIL-PRF-19500-qualified Zener diode family, engineered specifically for voltage regulation in harsh-environment systems where radiation tolerance, thermal stability, and military certification are mandatory.

FAQ

What is the Zener voltage tolerance of the 1N754?

The 1N754 has a nominal Zener voltage of 6.8 V with a ±5% tolerance, as indicated by the "A" suffix in its nomenclature per MIL-PRF-19500/127. This means the actual measured V_Z falls between 6.46 V and 7.14 V at I_ZT = 40 mA and T_A = 25°C. The 1N754 is not offered in tighter 1% or 2% tolerances - those require different suffixes (D or C) and distinct part numbers.

Is the 1N754 suitable for surface-mount assembly?

No, the 1N754 is packaged in the axial-leaded DO-35 (DO-204AH) glass case and is intended for through-hole mounting. For surface-mount equivalents, Microsemi offers the 1N754UR-1 in DO-213AA (MELF) package - but that variant lacks JANTXV qualification and RoHS compliance is limited to commercial grade only.

What is the maximum Zener current rating for the 1N754?

The 1N754 has a maximum Zener current I_ZM of 50 mA, derived from its 0.5 W power rating and 6.8 V nominal voltage (P = V × I). This value assumes thermal equilibrium at T_L = 50°C with 0.375″ lead length; actual usable current must be reduced per the derating curve in Figure 1 of T4-LDS-0288 Rev. 1 when ambient or lead temperature exceeds 50°C.

Does the 1N754 meet RoHS requirements?

The standard 1N754 is not RoHS compliant, as it uses tin-lead plating per MIL-STD-750 and is qualified to JANTXV level. RoHS-compliant versions exist only in commercial-grade variants (e.g., 1N754AUR-1), which lack military qualification and are marked with "e3" suffix - the 1N754 itself carries no RoHS designation and is intended for legacy mil-spec applications.

How is polarity identified on the 1N754?

The 1N754 uses a cathode band - a single colored ring near one end of the glass body - to indicate the cathode terminal. During Zener regulation, the banded end must be held at a higher potential than the opposite (anode) end. Forward voltage drop is 1.1 V at I_F = 200 mA, confirming standard silicon diode behavior when operated in forward bias.

1N754 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):: 6.8 V

Tolerance:: ±5%

Power - Max:: 400 mW

Impedance (Max) (Zzt):: 5 Ohms

Current - Reverse Leakage @ Vr:: 100 nA @ 1 V

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

Operating Temperature:: -65°C ~ 175°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

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

1N754 FAQ

1.How can I place an order for 1N754 through Aetrix?

Please submit a Request for Quotation (RFQ) for 1N754 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 1N754 reliable?

The price and inventory of 1N754 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N754 is usually 5 days.

3.What payment methods are accepted for 1N754?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N754 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1N754?

1N754 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1N754 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 1N754?

For technical support, including 1N754 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N754 requirements.

6.How does Aetrix verify that 1N754 is sourced from the original manufacturer or authorized distributors?

All 1N754 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 1N754 meets industry standards.

7.What is the process for return or replacement of 1N754?

All 1N754 units undergo pre-shipment inspection (PSI). If there is an issue with 1N754, 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 1N754 part is unused and in its original packaging.

Return procedure for 1N754:

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…