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Microchip Technology 1N753D-1
- Part No.:
- 1N753D-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N753D-1.pdf
- Description:
- DIODE ZENER 6.2V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:4,496
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Product details
Overview
1N753D-1 from Microsemi is a 500 mW, 6.2 V ±1% tolerance 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 20 mA and temperature coefficient of +0.045 %/°C - used for precision voltage regulation in military power supply reference circuits.
For engineers reviewing the 1N753D-1 datasheet, 1N753D-1 pinout, 1N753D-1 application, or 1N753D-1 equivalent, key selection criteria include its tight 1% Zener voltage tolerance, JANTXV radiation-hardened qualification, low 3 Ω dynamic impedance, -65°C to +175°C operating range, and DO-35 hermetic glass package suitability for high-reliability analog reference design.
Technical Context
The 1N753D-1 operates as a reverse-biased voltage reference diode with nominal Zener voltage of 6.2 V at IZT = 20 mA, exhibiting a positive temperature coefficient (+0.045 %/°C) indicating stable regulation above 25 °C. Its metallurgically bonded junction ensures low noise and long-term stability under thermal cycling.
Designed for compliance with MIL-PRF-19500/127 Class JANTXV, it delivers 500 mW average power dissipation at 50 °C lead temperature, derating linearly to zero at 175 °C, and supports operation up to 175 °C junction temperature with RθJL = 250 °C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 6.2 V at IZT = 20 mA - defines precise regulation point for reference design |
| Zener Voltage Tolerance | ±1% (D suffix) - enables tighter output voltage control vs. standard ±5% parts |
| Dynamic Impedance | 3 Ω at IZT = 20 mA - ensures minimal output voltage shift under load variation |
| Max Power Dissipation | 500 mW at TL = 50 °C - sets thermal limit for PCB-mounted lead-length design |
| Temp Coefficient αVZ | +0.045 %/°C - indicates predictable, rising VZ with temperature above 25 °C |
| Reverse Leakage Current | 5 µA max at VR = 3.5 V - confirms low standby current in high-impedance bias networks |
| Operating Temperature | -65 °C to +175 °C - supports deployment in aerospace, downhole, and avionics environments |
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 (commercial grade only). Polarity: banded end is cathode - operated with cathode positive relative to anode for Zener regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to circuit common; forms return path for Zener current |
| Cathode | Regulated output node | Banded end; supplies stable 6.2 V reference when reverse-biased |
Key Features
| Feature | Design Value |
|---|---|
| JANTXV qualification | MIL-PRF-19500/127 certified for high-reliability military systems with full screening and lot traceability |
| 1% Zener tolerance | Enables single-diode reference designs without post-calibration trimming in precision analog circuits |
| Metallurgical bond construction | Provides superior thermal stability and resistance to parameter drift under thermal stress |
| Radiation hardness | Inherently radiation-tolerant per Microsemi MicroNote 050 - suitable for space-qualified subsystems |
| Low capacitance | Minimizes high-frequency coupling in RF-adjacent bias networks and sensor front-ends |
Applications
| Avionics Power Reference | Downhole Sensor Biasing |
|---|---|
Use Scenario: Stable 6.2 V reference for ADC voltage reference and op-amp biasing in flight control computers. IC Role / Device Role / Timing Role: Precision shunt voltage reference providing primary regulation for analog signal chain. Use Value: ±1% tolerance and +0.045 %/°C TC ensure <±0.5% total error over -55°C to +125°C operational range. | Use Scenario: Biasing voltage source for piezoresistive pressure transducers in oil/gas well logging tools. IC Role / Device Role / Timing Role: High-temperature-stable Zener reference enabling accurate sensor excitation at 175°C ambient. Use Value: Operation up to +175°C junction temperature and MIL-qualified reliability prevent field failure in extreme downhole conditions. |
| Spacecraft Telemetry Regulator | Tactical Radio Voltage Clamp |
Use Scenario: Voltage clamp and reference in radiation-exposed telemetry interface modules on LEO satellites. IC Role / Device Role / Timing Role: Radiation-hardened shunt regulator protecting downstream logic and providing stable reference. Use Value: Inherent radiation tolerance (MicroNote 050) eliminates need for shielding or redundancy in critical telemetry paths. | Use Scenario: Overvoltage protection and rail stabilization in battery-powered handheld radios exposed to ESD and load dump. IC Role / Device Role / Timing Role: Fast-response Zener clamp limiting supply rail to 6.2 V during transient events. Use Value: Low 3 Ω dynamic impedance ensures rapid clamping response and minimal overshoot during 100 ns transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N753A-1 | Same 6.2 V nominal, but ±5% tolerance (A suffix) vs. ±1% (D suffix) | Acceptable where calibration or trimming compensates for initial tolerance | Select 1N753A-1 for cost-sensitive commercial designs where ±5% is sufficient |
| 1N753C-1 | Same 6.2 V nominal, ±2% tolerance (C suffix), JANTX-level qualification only | Used where tighter tolerance than A-grade is needed but JANTXV screening not required | Choose 1N753C-1 when balancing tolerance and qualification level for industrial-grade systems |
Compared with 1N753A-1 and 1N753C-1, the 1N753D-1 provides the tightest initial tolerance (±1%) and highest reliability screening (JANTXV), making it optimal for uncalibrated, mission-critical analog references where long-term stability and radiation resilience are mandatory.
Availability
1N753D-1 is available at Aetrix Electronics and suitable for avionics power reference, downhole sensor biasing, spacecraft telemetry regulation, and tactical radio voltage clamping requiring stable component supply across extended temperature and radiation environments.
Supply support for 1N753D-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 defense-grade analog and mixed-signal components.
The 1N753D-1 belongs to Microsemi's legacy MIL-PRF-19500/127 qualified Zener diode family, engineered specifically for precision voltage reference and regulation in aerospace, defense, and industrial systems demanding extreme environmental resilience.
FAQ
What is the Zener voltage tolerance of the 1N753D-1?
The 1N753D-1 has a Zener voltage tolerance of ±1%, denoted by the "D" suffix in its part number. This tight tolerance is verified at 25 °C with IZT = 20 mA and supports high-accuracy reference designs without post-manufacturing calibration. The 1N753D-1 maintains this specification across its qualified JANTXV screening and full military temperature range.
Is the 1N753D-1 suitable for high-temperature operation?
Yes, the 1N753D-1 is rated for junction temperatures from -65 °C to +175 °C and is qualified to MIL-PRF-19500/127 JANTXV level. Its DO-35 glass package and metallurgical bond construction enable reliable operation in downhole, avionics, and engine-control environments where sustained high-temperature performance is critical. The 1N753D-1's thermal resistance (RθJL = 250 °C/W) supports robust thermal design at elevated ambient conditions.
What does the "D" suffix mean in 1N753D-1?
The "D" suffix in 1N753D-1 specifies a ±1% Zener voltage tolerance, distinguishing it from the ±5% "A" and ±2% "C" variants in the same family. It also indicates the device is manufactured to JANTXV reliability level per MIL-PRF-19500/127. The 1N753D-1 retains all core electrical characteristics of the base 1N753 series while delivering enhanced initial accuracy and screening rigor.
How is polarity marked on the 1N753D-1?
The 1N753D-1 uses a cathode band to indicate polarity: the banded end is the cathode and must be held positive relative to the anode for proper Zener regulation. This marking conforms to JEDEC standards and is visible on the DO-35 glass body. During PCB layout, the 1N753D-1 must be oriented so the banded end connects to the regulated voltage node, with the unmarked end tied to system ground or lower potential.
Does the 1N753D-1 meet RoHS requirements?
No - the 1N753D-1 is a JANTXV-qualified military-grade part with tin-lead plating and is not RoHS compliant. RoHS-compliant versions (e3 suffix) are available only in commercial-grade variants (e.g., 1N753DUR-1), which lack MIL-PRF-19500/127 qualification. The 1N753D-1 prioritizes reliability and radiation hardness over environmental compliance, making it appropriate for legacy and defense platforms where leaded finishes are permitted and required.
1N753D-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):
- 6.2 V
- Tolerance:
- ±1%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 7 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)
1N753D-1 FAQ
1.How can I place an order for 1N753D-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N753D-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 1N753D-1 reliable?
The price and inventory of 1N753D-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N753D-1 is usually 5 days.
3.What payment methods are accepted for 1N753D-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N753D-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N753D-1?
1N753D-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N753D-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 1N753D-1?
For technical support, including 1N753D-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N753D-1 requirements.
6.How does Aetrix verify that 1N753D-1 is sourced from the original manufacturer or authorized distributors?
All 1N753D-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 1N753D-1 meets industry standards.
7.What is the process for return or replacement of 1N753D-1?
All 1N753D-1 units undergo pre-shipment inspection (PSI). If there is an issue with 1N753D-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 1N753D-1 part is unused and in its original packaging.
Return procedure for 1N753D-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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