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Microchip Technology 1N754C-1/TR
- Part No.:
- 1N754C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N754C-1/TR.pdf
- Description:
- DIODE ZENER 6.8V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:6,077
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Product details
Overview
1N754C-1/TR from Microsemi is a 500 mW, 6.8 V ±2% tolerance silicon Zener diode in DO-35 glass axial package, qualified to JANTX 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 1N754C-1/TR datasheet, 1N754C-1/TR pinout, 1N754C-1/TR application, or 1N754C-1/TR equivalent, key selection criteria include Zener voltage tolerance (±2%), junction-to-lead thermal resistance (250 °C/W), RoHS-compliant commercial-grade plating, tape-and-reel packaging (TR suffix), and MIL-qualified reliability levels.
Technical Context
This device operates as a reverse-biased voltage reference with a nominal Zener voltage of 6.8 V at 40 mA test current (IZT), exhibiting low dynamic impedance (3 Ω) and positive temperature coefficient (+0.050 %/°C) above 6 V - enabling stable regulation across -65 °C to +175 °C operating range.
It features an internal metallurgical bond, hermetically sealed DO-35 glass package, cathode band polarity marking, and is rated for 500 mW average power dissipation at 50 °C lead temperature - derating linearly to zero at 175 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.8 V at IZT = 40 mA - defines precise regulation point for feedback loops and reference rails. |
| Zener Tolerance | ±2% (C grade) - tighter than standard ±5%, reducing calibration margin in precision analog designs. |
| Dynamic Impedance (ZZT) | 3 Ω at IZT = 40 mA - ensures minimal output voltage variation under load transients. |
| Power Dissipation | 500 mW at TL = 50 °C - supports robust operation in high-temperature environments with proper lead heatsinking. |
| Temp Coefficient (αVZ) | +0.050 %/°C - enables predictable, monotonic drift for compensated reference designs above 6 V. |
| Reverse Leakage (IR) | 2 µA at VR = 4.0 V - guarantees low quiescent current in standby or low-power regulation modes. |
| Junction Temp Range | -65 °C to +175 °C - meets extended-range requirements for aerospace, defense, and downhole electronics. |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed glass axial package with tin-lead or RoHS-compliant matte-tin plating; cathode indicated by colored band; leads 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; reverse bias applied between cathode and anode for regulation. |
| Cathode | Zener breakdown terminal / regulated output node | Banded end; connected to unregulated input; delivers stable 6.8 V to load when reverse biased above knee voltage. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/127 qualification | JANTX-level screening ensures reliability for mission-critical defense and aerospace systems. |
| Metallurgical bond construction | Enhances thermal stability and long-term parameter consistency under thermal cycling stress. |
| Low dynamic impedance (3 Ω) | Minimizes output voltage deviation during rapid load current changes in feedback references. |
| RoHS-compliant plating option | Enables use in commercial-grade assemblies without lead-free process compatibility concerns. |
| Tape-and-reel packaging (TR) | Supports automated SMT placement despite axial form factor via carrier tape handling. |
Applications
| Avionics Power Reference | Spacecraft Voltage Monitor |
|---|---|
Use Scenario: Regulating reference voltage for ADC biasing and sensor excitation in flight control computers. IC Role / Device Role / Timing Role: Precision shunt voltage reference providing stable 6.8 V to analog front-end ICs. Use Value: ±2% tolerance and +0.050 %/°C TC ensure <±15 mV drift over -55 °C to +125 °C operational range. | Use Scenario: Monitoring bus voltage integrity in radiation-hardened satellite power distribution units. IC Role / Device Role / Timing Role: Radiation-tolerant Zener element in overvoltage detection comparators. Use Value: Inherent radiation hardness per MicroNote 050 enables >100 krad(Si) operation without parameter shift. |
| Military Radio Bias Supply | Downhole Telemetry Regulator |
Use Scenario: Generating stable local bias for RF amplifier stages in handheld tactical radios. IC Role / Device Role / Timing Role: Low-noise shunt regulator supplying clean 6.8 V to GaAs FET gate bias networks. Use Value: 3 Ω dynamic impedance suppresses switching noise coupling into sensitive RF signal paths. | Use Scenario: Providing reference voltage for pressure/temperature sensor conditioning in oil-well logging tools. IC Role / Device Role / Timing Role: High-temperature-stable Zener reference operating continuously at +175 °C ambient. Use Value: Full -65 °C to +175 °C junction rating allows uninterrupted function in geothermal borehole environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N754A-1/TR | ±5% Zener tolerance vs. ±2% for 1N754C-1/TR; otherwise identical electrical and mechanical specs. | Suitable where calibration margin accommodates wider voltage spread; not recommended for precision references. | Select 1N754A-1/TR only if cost sensitivity outweighs regulation accuracy requirements. |
| SMF6.8AT1G | Surface-mount SOD-123 package; 6.8 V ±5%; 500 mW; no MIL qualification; RoHS-only. | Limited to commercial industrial PCBs without shock/vibration or radiation constraints. | Choose SMF6.8AT1G only for space-constrained, non-military consumer or telecom designs. |
Compared with 1N754A-1/TR and SMF6.8AT1G, the 1N754C-1/TR uniquely delivers ±2% regulation accuracy combined with JANTX-level military screening and hermetic DO-35 packaging - making it irreplaceable in high-reliability analog references where both precision and ruggedness are mandatory.
Availability
1N754C-1/TR is available at Aetrix Electronics and suitable for avionics power reference, spacecraft voltage monitor, and military radio bias supply requiring stable component supply across extended temperature and radiation environments.
Supply support for 1N754C-1/TR 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 1N754C-1/TR belongs to Microsemi's legacy MIL-PRF-19500/127-qualified Zener diode family, engineered specifically for precision voltage regulation in harsh-environment electronic systems where long-term stability and radiation tolerance are critical.
FAQ
What is the Zener voltage tolerance of the 1N754C-1/TR?
The 1N754C-1/TR has a Zener voltage tolerance of ±2%, denoted by the "C" in its part number per Microsemi's nomenclature. This tighter tolerance enables higher accuracy in voltage reference and regulation circuits compared to the standard ±5% (A-grade) version, and is verified at 25 °C with IZT = 40 mA per T4-LDS-0288 Rev. 1.
Is the 1N754C-1/TR qualified to military specifications?
Yes, the 1N754C-1/TR is qualified to JANTX level per MIL-PRF-19500/127, including rigorous screening for vibration, thermal shock, and long-term life testing. Its qualification is documented in the official Microsemi datasheet T4-LDS-0288, and the "-1" suffix confirms compliance with this specification.
What does the "TR" suffix indicate in 1N754C-1/TR?
The "TR" suffix indicates tape-and-reel packaging per EIA-296 standard, enabling automated handling and placement in high-volume assembly lines. The 1N754C-1/TR retains all electrical and reliability characteristics of the bulk version while supporting SMT-compatible logistics - confirmed in the Mechanical and Packaging section of T4-LDS-0288.
What is the maximum power dissipation for the 1N754C-1/TR?
The 1N754C-1/TR has an average rated power dissipation of 500 mW at a lead temperature (TL) of +50 °C with 0.375 inch lead length, derating linearly to zero at +175 °C. When mounted on a PCB, it is rated for 400 mW at +55 °C ambient, per the Maximum Ratings table in T4-LDS-0288 Rev. 1.
Does the 1N754C-1/TR have radiation hardness?
Yes, the 1N754C-1/TR exhibits inherent radiation hardness as described in Microsemi MicroNote 050, due to its hermetic DO-35 glass package and metallurgically bonded construction. It is routinely used in spacecraft telemetry and nuclear instrumentation where total ionizing dose (TID) resilience exceeds 100 krad(Si) without parametric shift.
1N754C-1/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.8 V
- Tolerance:
- ±2%
- Power - Max:
- 500 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
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
1N754C-1/TR FAQ
1.How can I place an order for 1N754C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N754C-1/TR 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 1N754C-1/TR reliable?
The price and inventory of 1N754C-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N754C-1/TR is usually 5 days.
3.What payment methods are accepted for 1N754C-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N754C-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N754C-1/TR?
1N754C-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N754C-1/TR 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 1N754C-1/TR?
For technical support, including 1N754C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N754C-1/TR requirements.
6.How does Aetrix verify that 1N754C-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N754C-1/TR 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 1N754C-1/TR meets industry standards.
7.What is the process for return or replacement of 1N754C-1/TR?
All 1N754C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N754C-1/TR, 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 1N754C-1/TR part is unused and in its original packaging.
Return procedure for 1N754C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N754C-1/TR Tags
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