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Microchip Technology 1N753
- Part No.:
- 1N753
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N753.pdf
- Description:
- DIODE ZENER 6.2V 400MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:2,510
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Product details
Overview
1N753 from Microsemi is a 500 mW, 6.2 V ±5% silicon Zener diode in DO-35 (DO-204AH) glass axial-leaded 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 1N753 datasheet, 1N753 pinout, 1N753 application, or 1N753 equivalent, key selection factors include its 6.2 V nominal Zener voltage at 20 mA, 3 Ω dynamic impedance, +0.045 %/°C temperature coefficient, and 50 mA maximum Zener current under derated conditions.
Technical Context
This device operates as a reverse-biased voltage reference with metallurgical bonding for thermal stability and radiation hardness. It delivers regulated output across -65°C to +175°C ambient range, with junction-to-lead thermal resistance of 250°C/W and junction-to-ambient of 300°C/W on PCB mounting.
Its Zener breakdown behavior is characterized at IZT = 20 mA, with VR = 3.5 V and IR ≤ 5 µA, and exhibits low capacitance and ESD immunity per MIL-STD-750 method 1020 - critical for stable biasing in analog front-ends and sensor excitation circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 6.2 V at 20 mA test current - defines primary regulation point for reference design |
| Zener Impedance | 3 Ω at 20 mA - ensures minimal output voltage variation under load transients |
| Temperature Coefficient | +0.045 %/°C - enables predictable drift compensation in wide-temperature environments |
| Max Zener Current | 50 mA - sets upper limit for continuous regulation without exceeding 400 mW PCB-mounted power rating |
| Reverse Leakage | ≤5 µA at 3.5 V - guarantees low standby power loss in high-impedance bias networks |
| Power Dissipation | 500 mW at TL = 50°C (0.375″ lead length) - determines heatsinking requirements for chassis-mount use |
| Operating Temperature | -65°C to +175°C - supports deployment in aerospace, downhole, and engine-control applications |
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 and 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 positive relative to anode for breakdown conduction |
Key Features
| Feature | Design Value |
|---|---|
| JANTXV qualification per MIL-PRF-19500/127 | Validated reliability for mission-critical defense and space systems requiring extended lifetime and screening |
| Internal metallurgical bond | Enhances thermal coupling between junction and leads, improving long-term stability under thermal cycling |
| Radiation hardness per MicroNote 050 | Enables use in high-radiation environments such as satellite power management without parameter shift |
| Low 3 Ω dynamic impedance at 20 mA | Minimizes output voltage deviation during current step changes in feedback loops and reference buffers |
| Non-sensitive to ESD per MIL-STD-750 method 1020 | Eliminates need for external ESD protection in handling and assembly of ruggedized electronics |
Applications
| Power Supply Reference | Sensor Excitation Circuit |
|---|---|
Use Scenario: Providing stable 6.2 V reference for op-amp-based linear regulators and feedback dividers in DC-DC converters. IC Role / Device Role / Timing Role: Voltage reference element establishing precise setpoint for error amplifiers and PWM controllers. Use Value: Maintains ±0.31 V regulation tolerance over full temperature range and load current, reducing output ripple and improving line/load regulation. | Use Scenario: Biasing resistive bridge sensors (e.g., strain gauges, RTDs) in industrial process monitoring systems. IC Role / Device Role / Timing Role: Stable excitation source ensuring consistent sensor sensitivity and minimizing zero-drift errors. Use Value: Delivers <5 µA leakage at 3.5 V reverse bias, preventing measurement offset in high-impedance signal chains. |
| Military Analog Front-End | Aerospace Voltage Clamp |
Use Scenario: Generating calibrated reference voltages for ADCs and DACs in JANTXV-qualified avionics data acquisition modules. IC Role / Device Role / Timing Role: Precision voltage standard traceable to MIL-PRF-19500/127 screening and calibration protocols. Use Value: Supports 16-bit converter accuracy with <±0.05% TC-induced drift from -55°C to +125°C. | Use Scenario: Clamping transient overvoltage on 5–12 V bus lines in satellite power distribution units. IC Role / Device Role / Timing Role: Fast-acting shunt protector limiting peak voltage to 6.2 V ±5% during ESD or lightning-induced surges. Use Value: Withstands 50 mA continuous Zener current and handles non-repetitive surge per IZSM rating, protecting downstream FET drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4735A | Same 6.2 V nominal Zener voltage but ±5% tolerance, 500 mW rating, DO-41 package (larger than DO-35), no military qualification | Commercial-only use; lacks JANTXV screening, radiation hardness, and MIL-PRF-19500 compliance | Select when cost-sensitive commercial designs require same voltage but do not demand military reliability or hermetic sealing |
| BZX55C6V2 | 6.2 V ±5%, 500 mW, DO-35 package, AEC-Q200 qualified, RoHS compliant, no military screening or radiation spec | Automotive-grade alternative with automotive qualification but no MIL-PRF-19500/127 validation or temperature range beyond +150°C | Choose for automotive ECUs where extended temperature operation up to +150°C suffices and radiation hardness is not required |
Compared with 1N4735A and BZX55C6V2, the 1N753 offers verified JANTXV-level screening, hermetic DO-35 packaging, and documented radiation hardness - making it uniquely suitable for defense, space, and high-reliability industrial applications where long-term parametric stability under extreme stress is mandatory.
Availability
1N753 is available at Aetrix Electronics and suitable for military power supply references, aerospace voltage clamps, sensor excitation circuits, and ruggedized industrial control systems requiring stable component supply across extended temperature and radiation environments.
Supply support for 1N753 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 analog and mixed-signal components.
The 1N753 belongs to Microsemi's legacy MIL-PRF-19500/127-qualified Zener diode family, designed specifically for precision voltage regulation in defense electronics, space systems, and harsh-environment industrial instrumentation.
FAQ
What is the nominal Zener voltage and test current for the 1N753?
The 1N753 has a nominal Zener voltage of 6.2 V measured at a test current (IZT) of 20 mA. This value is specified with ±5% tolerance per the "A" suffix in the part nomenclature and is validated under JEDEC-standard conditions with 20-second stabilization time after current application.
Is the 1N753 suitable for high-temperature operation?
Yes, the 1N753 supports continuous operation from -65°C to +175°C. Its junction-to-lead thermal resistance is 250°C/W, and power dissipation is derated linearly from 500 mW at 50°C lead temperature to zero at 175°C - enabling use in engine compartments, downhole tools, and avionics bays.
Does the 1N753 have military qualification?
Yes, the 1N753 is qualified to JANTXV level per MIL-PRF-19500/127, including rigorous screening for vibration, shock, temperature cycling, and burn-in. The "-1" suffix in 1N753A-1 explicitly denotes this highest reliability grade, with full traceability and lot-level documentation.
What is the dynamic impedance of the 1N753 and why does it matter?
The 1N753 exhibits a maximum Zener impedance (ZZT) of 3 Ω at 20 mA. This low value ensures minimal output voltage variation during load transients - critical for maintaining regulation accuracy in feedback networks, reference buffers, and precision analog circuits where stability under dynamic current demand is essential.
Can the 1N753 be used in RoHS-compliant designs?
The 1N753A-1 is available in RoHS-compliant versions only for commercial-grade variants (marked with "e3" suffix); however, the JANTXV-qualified 1N753A-1 uses traditional tin-lead plating per MIL-STD-750. For RoHS compliance with military reliability, consult Microchip's qualified alternatives or verify latest revision status directly with manufacturer documentation.
1N753 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:
- ±10%
- Power - Max:
- 400 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 (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
1N753 FAQ
1.How can I place an order for 1N753 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N753 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 1N753 reliable?
The price and inventory of 1N753 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N753 is usually 5 days.
3.What payment methods are accepted for 1N753?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N753 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N753?
1N753 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N753 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 1N753?
For technical support, including 1N753 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N753 requirements.
6.How does Aetrix verify that 1N753 is sourced from the original manufacturer or authorized distributors?
All 1N753 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 1N753 meets industry standards.
7.What is the process for return or replacement of 1N753?
All 1N753 units undergo pre-shipment inspection (PSI). If there is an issue with 1N753, 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 1N753 part is unused and in its original packaging.
Return procedure for 1N753:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N753 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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