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

Microchip Technology 1N758D-1

Name: 1N758D-1
Brand: Microchip Technology
SKU: 1N758D-1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 1N758D-1

Manufacturer:: Microchip Technology

Category:: Single Zener Diodes

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

Datasheet:: 1N758D-1.pdf

Description:: DIODE ZENER 10V 500MW DO204AH

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Inventory:8,235

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Product details

Overview

1N758D-1 from Microsemi is a 10.0 V, ±1% tolerance, 500 mW axial-leaded silicon Zener diode in DO-35 (DO-204AH) glass package, qualified to JANTXV level per MIL-PRF-19500/127, used for precision voltage regulation in military and industrial power supply reference circuits.

For engineers reviewing the 1N758D-1 datasheet, 1N758D-1 pinout, 1N758D-1 application, or 1N758D-1 equivalent, key selection criteria include its 10.0 V nominal Zener voltage at 25 mA, +0.076 %/°C temperature coefficient, 7 Ω dynamic impedance at I_ZT, 1 µA maximum reverse leakage at 1 V, and hermetically sealed DO-35 package with cathode band polarity marking.

Technical Context

The 1N758D-1 operates as a two-terminal voltage reference device, conducting in reverse breakdown to maintain stable output voltage across varying load and temperature conditions. Its metallurgically bonded junction ensures low noise, radiation hardness per MicroNote 050, and immunity to ESD per MIL-STD-750 Method 1020.

Designed for fixed-voltage regulation in analog and mixed-signal systems, it delivers 10.0 V ±1% at I_ZT = 25 mA with thermal resistance of 250 °C/W (junction-to-lead) and 300 °C/W (junction-to-ambient on PCB), supporting operation from –65 °C to +175 °C.

Key Specifications

Parameter	Value and Actual Design Meaning
Nominal Zener Voltage	10.0 V at I_ZT = 25 mA - defines precise regulation point for reference design
Zener Tolerance	±1% - tight tolerance enables high-accuracy voltage references without trimming
Dynamic Impedance	7 Ω at I_ZT = 25 mA - low impedance ensures minimal output voltage variation under load changes
Max Reverse Leakage	1 µA at V_R = 1 V - guarantees low quiescent current in standby mode
Power Dissipation	500 mW at T_L = +50°C - supports robust thermal performance with standard lead length mounting
Temp Coefficient αV_Z	+0.076 %/°C - positive coefficient allows predictable drift compensation in wide-temp designs
Operating Temp Range	–65 °C to +175 °C - enables deployment in aerospace, downhole, and defense environments

Pinout & Package

Hermetically sealed axial-leaded DO-35 (DO-204AH) glass package with cathode indicated by a single black 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 regulation
Cathode	Reverse-biased Zener terminal / regulated output node	Banded end; connected to unregulated input; supplies stable 10.0 V to load

Key Features

Feature	Design Value
JANTXV qualification	MIL-PRF-19500/127 certified for high-reliability military applications with full traceability
Metallurgical bond	Eliminates wire bonds to improve reliability, reduce noise, and enhance radiation tolerance
Low capacitance	Minimizes signal coupling and high-frequency interference in sensitive analog circuits
ESD immunity	Non-sensitive per MIL-STD-750 Method 1020 - no handling precautions required
RoHS option	e3 suffix available for commercial-grade versions only, enabling compliance without performance trade-off

Applications

Aerospace Power Reference	Industrial Sensor Excitation
Use Scenario: Stable 10.0 V reference for ADC biasing and op-amp feedback networks in satellite telemetry modules. IC Role / Device Role / Timing Role: Precision voltage reference providing regulation independent of input ripple and temperature swing. Use Value: ±1% tolerance and +0.076 %/°C TC ensure <±0.5% total error over –55 °C to +125 °C operating range.	Use Scenario: Excitation source for strain-gauge bridges and RTD interfaces in factory automation PLCs. IC Role / Device Role / Timing Role: Low-noise, low-capacitance Zener supplying constant current via series resistor to bridge elements. Use Value: 7 Ω dynamic impedance minimizes excitation voltage shift under bridge loading variations.
Defense System Voltage Clamp	Downhole Instrumentation Regulator
Use Scenario: Overvoltage protection and rail stabilization in radar pulse generator front-end power rails. IC Role / Device Role / Timing Role: Shunt regulator clamping transient spikes while maintaining steady 10.0 V bias for GaAs FET drivers. Use Value: Hermetic DO-35 package and –65 °C to +175 °C rating withstand shock, vibration, and thermal cycling.	Use Scenario: Primary voltage reference in borehole logging tools exposed to >150 °C ambient and high gamma radiation. IC Role / Device Role / Timing Role: Radiation-hardened Zener reference ensuring data integrity in analog front-end signal chains. Use Value: Inherent radiation hardness per MicroNote 050 eliminates need for shielding or derating in nuclear environments.

Aerospace Power Reference

Industrial Sensor Excitation

Use Scenario: Stable 10.0 V reference for ADC biasing and op-amp feedback networks in satellite telemetry modules.

IC Role / Device Role / Timing Role: Precision voltage reference providing regulation independent of input ripple and temperature swing.

Use Value: ±1% tolerance and +0.076 %/°C TC ensure <±0.5% total error over –55 °C to +125 °C operating range.

Use Scenario: Excitation source for strain-gauge bridges and RTD interfaces in factory automation PLCs.

IC Role / Device Role / Timing Role: Low-noise, low-capacitance Zener supplying constant current via series resistor to bridge elements.

Use Value: 7 Ω dynamic impedance minimizes excitation voltage shift under bridge loading variations.

Defense System Voltage Clamp

Downhole Instrumentation Regulator

Use Scenario: Overvoltage protection and rail stabilization in radar pulse generator front-end power rails.

IC Role / Device Role / Timing Role: Shunt regulator clamping transient spikes while maintaining steady 10.0 V bias for GaAs FET drivers.

Use Value: Hermetic DO-35 package and –65 °C to +175 °C rating withstand shock, vibration, and thermal cycling.

Use Scenario: Primary voltage reference in borehole logging tools exposed to >150 °C ambient and high gamma radiation.

IC Role / Device Role / Timing Role: Radiation-hardened Zener reference ensuring data integrity in analog front-end signal chains.

Use Value: Inherent radiation hardness per MicroNote 050 eliminates need for shielding or derating in nuclear environments.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
1N758A-1	±5% tolerance (vs. ±1%); same V_Z, I_ZT, package, and qualification level	Suitable where cost sensitivity outweighs precision requirement	Select when ±5% regulation accuracy is acceptable and JANTXV qualification is mandatory
BZX85C10	Commercial-grade, ±5% tolerance, 1.3 W power rating, DO-41 package, no MIL-qualified variants	Used in non-military consumer/industrial power supplies with less stringent reliability demands	Choose for higher power margin and lower cost where MIL-spec and hermeticity are not required

Compared with 1N758A-1 and BZX85C10, the 1N758D-1 uniquely combines ±1% tolerance, JANTXV qualification, hermetic DO-35 packaging, and radiation hardness-making it irreplaceable in mission-critical aerospace and defense voltage reference designs.

Availability

1N758D-1 is available at Aetrix Electronics and suitable for aerospace power reference, industrial sensor excitation, defense system voltage clamp, and downhole instrumentation regulator applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for 1N758D-1 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, radiation-hardened, and military-qualified components.

The 1N758D-1 belongs to Microsemi's legacy MIL-PRF-19500/127 qualified Zener diode family, engineered for precision voltage regulation in extreme-environment electronics where reliability, stability, and certification are non-negotiable.

FAQ

What is the nominal Zener voltage and test current for the 1N758D-1?

The 1N758D-1 has a nominal Zener voltage of 10.0 V measured at a test current (I_ZT) of 25 mA. This value is guaranteed within ±1% tolerance at 25 °C and forms the basis for all regulation performance specifications in the datasheet. The 1N758D-1 maintains this voltage with low dynamic impedance (7 Ω) and predictable temperature drift (+0.076 %/°C).

Is the 1N758D-1 qualified to military standards?

Yes, the 1N758D-1 is qualified to JANTXV level per MIL-PRF-19500/127, confirming full compliance with screening, testing, and traceability requirements for high-reliability defense and aerospace applications. The "D" in 1N758D-1 denotes ±1% tolerance, and the absence of a suffix after "-1" indicates non-RoHS construction consistent with MIL-spec versions. The 1N758D-1 meets environmental stress screening including thermal cycling and hermeticity verification.

What package type and marking does the 1N758D-1 use?

The 1N758D-1 uses the hermetically sealed axial-leaded DO-35 (DO-204AH) glass package with cathode identified by a single black band. It is marked with the full part number "1N758D-1" on the body. Lead plating is tin-lead per MIL-STD-750 Method 2026, and the device weighs approximately 0.2 grams. The 1N758D-1's mechanical dimensions conform to ASME Y14.5M standards with controlled body diameter and lead length specifications.

What is the maximum power dissipation and thermal derating behavior of the 1N758D-1?

The 1N758D-1 has an average rated power dissipation of 500 mW at lead temperature (T_L) = +50 °C with 0.375 inch lead length, linearly derating to zero at +175 °C. When mounted on a PCB, it delivers 400 mW at T_A = +55 °C, derating to zero at +175 °C. Its thermal resistance is 250 °C/W (junction-to-lead) and 300 °C/W (junction-to-ambient), enabling reliable operation in high-temperature enclosures without forced cooling.

Does the 1N758D-1 have radiation hardness and ESD immunity?

Yes, the 1N758D-1 exhibits inherent radiation hardness as documented in Microsemi MicroNote 050 and is non-sensitive to ESD per MIL-STD-750 Method 1020. These characteristics stem from its metallurgically bonded junction and hermetic glass package-key features that eliminate wire bonds and prevent moisture ingress. The 1N758D-1 requires no special handling or external protection circuitry in high-radiation or electrostatic-prone environments.

1N758D-1 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):: 10 V

Tolerance:: ±1%

Power - Max:: 500 mW

Impedance (Max) (Zzt):: 17 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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

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

1N758D-1 FAQ

1.How can I place an order for 1N758D-1 through Aetrix?

Please submit a Request for Quotation (RFQ) for 1N758D-1 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 1N758D-1 reliable?

The price and inventory of 1N758D-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N758D-1 is usually 5 days.

3.What payment methods are accepted for 1N758D-1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N758D-1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1N758D-1?

1N758D-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1N758D-1 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 1N758D-1?

For technical support, including 1N758D-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N758D-1 requirements.

6.How does Aetrix verify that 1N758D-1 is sourced from the original manufacturer or authorized distributors?

All 1N758D-1 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 1N758D-1 meets industry standards.

7.What is the process for return or replacement of 1N758D-1?

All 1N758D-1 units undergo pre-shipment inspection (PSI). If there is an issue with 1N758D-1, 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 1N758D-1 part is unused and in its original packaging.

Return procedure for 1N758D-1:

1.Submit a request within 90 days.

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

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