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

Microchip Technology 1N758D

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

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Part No.:: 1N758D

Manufacturer:: Microchip Technology

Category:: Single Zener Diodes

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

Datasheet:: 1N758D.pdf

Description:: DIODE ZENER 10V 500MW DO204AH

Quantity:: RFQ Add To RFQ list

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Inventory:5,725

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Product details

Overview

1N758D from Microsemi is a 10.0 V, ±1% tolerance, 500 mW silicon Zener diode in DO-35 glass axial package, qualified to JANTXV level per MIL-PRF-19500/127, with 7 Ω dynamic impedance at 20 mA and +0.076 %/°C temperature coefficient-used for precision voltage reference and regulation in military power supply monitoring circuits.

For engineers reviewing the 1N758D datasheet, 1N758D pinout, 1N758D application, or 1N758D equivalent, key selection factors include its tight 1% Zener voltage tolerance, JANTXV radiation-hardened qualification, low 7 Ω Zener impedance at I_ZT = 20 mA, and operation across –65 °C to +175 °C junction temperature range.

Technical Context

The 1N758D operates as a reverse-biased voltage reference diode with nominal Zener voltage of 10.0 V at 20 mA test current (I_ZT), exhibiting +0.076 %/°C temperature coefficient above 25 °C and 7 Ω dynamic impedance (Z_ZT) under 10% AC modulation. Its metallurgically bonded junction ensures stable regulation over wide temperature extremes.

Designed for high-reliability analog signal conditioning, it delivers regulated output across load currents from I_ZK (knee current) up to 40 mA (I_ZM), with reverse leakage ≤1 µA at 7.0 V (V_R) and forward voltage ≤1.1 V at 200 mA-enabling use in both regulation and clamping roles within constrained thermal environments.

Key Specifications

Parameter	Value and Actual Design Meaning
Nominal Zener Voltage	10.0 V at I_ZT = 20 mA - defines precise regulation point for feedback loops and reference generation
Zener Tolerance	±1% - enables high-accuracy voltage setting without post-calibration in critical analog circuits
Dynamic Impedance	7 Ω at I_ZT = 20 mA - ensures minimal output voltage variation under changing load current
Power Dissipation	500 mW at T_L = +50 °C (0.375″ lead length) - supports continuous operation in compact, unheatsinked layouts
Temperature Coefficient	+0.076 %/°C - quantifies predictable positive drift above 25 °C for thermal compensation design
Reverse Leakage	≤1 µA at V_R = 7.0 V - guarantees low standby power loss in battery-backed or low-power systems
Junction Temperature Range	–65 °C to +175 °C - validated for aerospace, downhole, and extended-temperature industrial deployment

Pinout & Package

DO-35 (DO-204AH) hermetically sealed axial-leaded glass package with cathode indicated by color 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 circuit ground or lower-potential node during Zener operation
Cathode	Banded end	Connected to regulated output node; must be held at higher potential than anode for breakdown conduction

Key Features

Feature	Design Value
JANTXV qualification	MIL-PRF-19500/127 certified for high-reliability military/aerospace applications with full screening and traceability
Metallurgical bond construction	Eliminates wire-bond failure modes, ensuring long-term stability under thermal cycling and mechanical stress
1% Zener voltage tolerance	Reduces need for external trimming components in precision reference designs, lowering BOM count and calibration cost
Radiation hardness	Inherently resistant to total ionizing dose (TID) per Microsemi MicroNote 050-suitable for space-qualified systems
Low capacitance	Minimizes high-frequency coupling in RF-adjacent or fast-switching power domains

Applications

Aerospace Power Monitoring	Military Avionics Reference
Use Scenario: Regulating and monitoring 10 V reference rails in flight control computers operating across –55 °C to +125 °C ambient. IC Role / Device Role / Timing Role: Zener diode providing stable 10.0 V reference for ADC biasing and comparator thresholds. Use Value: ±1% tolerance and +0.076 %/°C TC ensure <±2% total error over full temperature range without active compensation.	Use Scenario: Clamping transient overvoltage on sensor interface lines in radar warning receivers exposed to EMI. IC Role / Device Role / Timing Role: Reverse-biased Zener acting as low-capacitance shunt clamp during surge events. Use Value: 7 Ω Z_ZT and 500 mW rating enable rapid energy dissipation while limiting clamped voltage to ≤10.5 V.
Downhole Instrumentation	Secure Communications PSU
Use Scenario: Providing bias voltage for pressure transducer amplifiers in oil/gas well logging tools at +175 °C junction temperature. IC Role / Device Role / Timing Role: Primary voltage reference in high-temperature analog front-end with no active regulation. Use Value: Validated –65 °C to +175 °C operation and metallurgical bond ensure functional reliability where rework is impossible.	Use Scenario: Generating tamper-evident reference voltage in cryptographic module power supervisors. IC Role / Device Role / Timing Role: Precision Zener establishing threshold for voltage-fault detection logic. Use Value: JANTXV qualification and radiation hardness prevent undetected parametric shift under neutron flux or gamma exposure.

Aerospace Power Monitoring

Military Avionics Reference

Use Scenario: Regulating and monitoring 10 V reference rails in flight control computers operating across –55 °C to +125 °C ambient.

IC Role / Device Role / Timing Role: Zener diode providing stable 10.0 V reference for ADC biasing and comparator thresholds.

Use Value: ±1% tolerance and +0.076 %/°C TC ensure <±2% total error over full temperature range without active compensation.

Use Scenario: Clamping transient overvoltage on sensor interface lines in radar warning receivers exposed to EMI.

IC Role / Device Role / Timing Role: Reverse-biased Zener acting as low-capacitance shunt clamp during surge events.

Use Value: 7 Ω Z_ZT and 500 mW rating enable rapid energy dissipation while limiting clamped voltage to ≤10.5 V.

Downhole Instrumentation

Secure Communications PSU

Use Scenario: Providing bias voltage for pressure transducer amplifiers in oil/gas well logging tools at +175 °C junction temperature.

IC Role / Device Role / Timing Role: Primary voltage reference in high-temperature analog front-end with no active regulation.

Use Value: Validated –65 °C to +175 °C operation and metallurgical bond ensure functional reliability where rework is impossible.

Use Scenario: Generating tamper-evident reference voltage in cryptographic module power supervisors.

IC Role / Device Role / Timing Role: Precision Zener establishing threshold for voltage-fault detection logic.

Use Value: JANTXV qualification and radiation hardness prevent undetected parametric shift under neutron flux or gamma exposure.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
1N758A	±5% Zener tolerance (vs. ±1%); same V_Z, package, and qualification level	Acceptable where system-level calibration compensates for initial tolerance	Select when cost sensitivity outweighs need for factory-set accuracy
1N758C	±2% Zener tolerance; identical thermal and electrical specs otherwise	Suitable for mid-tier instrumentation requiring tighter control than commercial but less than JANTXV-grade	Choose for balanced performance/cost in industrial control modules

Compared with 1N758A and 1N758C, the 1N758D delivers the highest initial accuracy (±1%) and is uniquely specified for JANTXV-level screening-making it the only option for systems requiring zero calibration and full MIL-PRF-19500/127 compliance without derating.

Availability

1N758D is available at Aetrix Electronics and suitable for aerospace power monitoring, military avionics reference, and downhole instrumentation requiring stable component supply under extended temperature and radiation-exposed conditions.

Supply support for 1N758D 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 defense-grade analog and mixed-signal components.

The 1N758D belongs to Microsemi's legacy MIL-PRF-19500/127-qualified Zener diode family, engineered specifically for precision voltage regulation in mission-critical military, aerospace, and industrial systems where parametric stability under extreme environmental stress is non-negotiable.

FAQ

What is the Zener voltage and tolerance of the 1N758D?

The 1N758D has a nominal Zener voltage of 10.0 V at 20 mA test current (I_ZT) with a tight ±1% tolerance. This specification is guaranteed per MIL-PRF-19500/127 screening and applies across the full operating temperature range. The 1N758D achieves this accuracy through metallurgical bonding and JANTXV-level process controls-critical for applications where reference stability cannot rely on post-manufacture calibration.

Is the 1N758D RoHS compliant?

No, the 1N758D is not RoHS compliant. Per Microsemi documentation, RoHS-compliant versions (e3 suffix) are available only for commercial-grade variants-not for JAN, JANTX, or JANTXV qualified parts like the 1N758D. The 1N758D uses traditional tin-lead plating to meet MIL-STD-750 solderability requirements and maintain JANTXV qualification integrity.

What is the maximum power dissipation of the 1N758D?

The 1N758D has an average rated power dissipation of 500 mW at lead temperature (T_L) = +50 °C with 0.375 inch (9.53 mm) lead length from body. It linearly derates to zero at +175 °C. When mounted on a PCB, its rating drops to 400 mW at +55 °C ambient, derating to zero at +175 °C-values confirmed in Figure 2 of T4-LDS-0288 Rev. 1.

Does the 1N758D have radiation hardness?

Yes, the 1N758D is inherently radiation hard as documented in Microsemi MicroNote 050. Its metallurgically bonded DO-35 structure provides resistance to total ionizing dose (TID), making it suitable for space and nuclear environments. This characteristic is intrinsic to the device construction and does not require additional testing beyond standard JANTXV qualification.

What is the Zener impedance of the 1N758D and why does it matter?

The 1N758D exhibits a dynamic impedance (Z_ZT) of 7 Ω at I_ZT = 20 mA with 10% AC modulation. This low value means the output voltage varies minimally with changes in load current-critical for maintaining reference accuracy in feedback networks. For example, a 10 mA load swing causes only ~70 mV deviation, directly supporting stable regulation in precision analog circuits using the 1N758D.

1N758D 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 FAQ

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

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

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

3.What payment methods are accepted for 1N758D?

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

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1N758D?

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

Once your 1N758D 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?

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

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

All 1N758D 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 meets industry standards.

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

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

Return procedure for 1N758D:

1.Submit a request within 90 days.

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

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