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Microchip Technology 1N4100C/TR
- Part No.:
- 1N4100C/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AA, DO-7, Axial
- Datasheet:
-
1N4100C/TR.pdf
- Description:
- DIODE ZENER 7.5V 500MW DO7
- Quantity:
- Payment:
- Shipping:
Inventory:5,702
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Product details
Overview
1N4100C/TR from Microsemi is a 500 mW, 7.5 V Zener diode in DO-35 glass package with ±2% voltage tolerance, metallurgically bonded construction, and MIL-PRF-19500/435 qualification up to JANTXV level. It regulates voltage across wide current and temperature ranges in precision reference and power-supply feedback circuits.
For engineers reviewing the 1N4100C/TR datasheet, 1N4100C/TR pinout, 1N4100C/TR application, or 1N4100C/TR equivalent, this page delivers verified Zener voltage, dynamic impedance, noise density, thermal derating behavior, and military-grade reliability data critical for high-reliability analog design and aerospace power conditioning.
Technical Context
This Zener diode operates in reverse breakdown with a nominal 7.5 V regulation at 250 mA test current (IZT), exhibiting 200 Ω dynamic impedance (ZZT) and low 1 μV/√Hz noise density. Its metallurgical bond ensures stable junction characteristics under thermal cycling and radiation exposure.
The device is rated for 0.5 W average power dissipation at 25 °C, linearly derated to zero at 175 °C junction temperature, with 250 °C/W junction-to-lead thermal resistance when mounted with 10 mm lead length. Polarity is marked by cathode band; operation requires banded end positive relative to anode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.5 V ±2% at 250 mA - precise reference for feedback loops requiring tight voltage stability |
| Power Dissipation | 500 mW at 25 °C, derated linearly to zero at 175 °C - defines safe operating area in thermally constrained PCB layouts |
| Dynamic Impedance (ZZT) | 200 Ω at 250 mA - determines output voltage variation under load transients in regulator applications |
| Noise Density (ND) | 1 μV/√Hz at 250 mA - enables low-noise reference use in instrumentation amplifiers and ADC references |
| Reverse Leakage (IR) | 1.0 µA at 5.7 V - ensures minimal error current in high-impedance bias networks |
| Temp Coefficient (αVZ) | +0.065 %/°C - quantifies drift direction and magnitude for temperature-compensated designs |
| Junction Temp Range | –65 °C to +175 °C - supports operation in extended-environment avionics and downhole electronics |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with hermetically sealed body, tin-lead or RoHS-compliant matte-tin plating, and cathode indicated by colored band. Weight ≈ 0.2 g; body diameter 1.42–2.29 mm, length 3.56–5.08 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to circuit common; establishes reference potential for Zener regulation |
| Cathode | Regulated output node | Banded end; supplies stable 7.5 V when reverse-biased above breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Ensures long-term parameter stability and resistance to thermal shock in high-reliability systems |
| MIL-PRF-19500/435 qualification | Validated performance to JANTXV level for aerospace, defense, and space-grade applications |
| Low noise density | 1 μV/√Hz enables use in precision analog signal chains without added filtering |
| Hermetic glass sealing | Prevents moisture ingress and parameter shift over decades of field operation |
| ESD immunity | Non-sensitive per MIL-STD-750 Method 1020 - eliminates need for external ESD protection in handling |
Applications
| Avionics Power Reference | Satellite DC-DC Feedback |
|---|---|
Use Scenario: Providing stable 7.5 V reference for voltage-controlled oscillators and sensor excitation in flight control computers. IC Role / Device Role / Timing Role: Precision Zener reference source for analog subsystems requiring traceable calibration and low drift. Use Value: ±2% tolerance and +0.065 %/°C tempco enable <±0.5% total error over –55 °C to +125 °C operating range. | Use Scenario: Regulating output voltage in radiation-hardened isolated DC-DC converters aboard LEO satellites. IC Role / Device Role / Timing Role: Zener shunt regulator in secondary-side feedback path, leveraging inherent radiation hardness. Use Value: Inherent radiation tolerance per MicroNote 050 eliminates need for shielding or redundancy in TID environments up to 100 krad(Si). |
| Downhole Instrumentation Bias | Military Radio Receiver AGC |
Use Scenario: Generating stable bias voltages for piezoelectric sensor front-ends in oil/gas well logging tools. IC Role / Device Role / Timing Role: High-temperature Zener reference maintaining accuracy at 175 °C junction temperature. Use Value: Full operational capability up to +175 °C allows direct mounting near heat-generating transducers without derating penalties. | Use Scenario: Setting gain-control thresholds in SDR receiver IF stages exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: Low-noise Zener element in automatic gain control loop integrator networks. Use Value: 1 μV/√Hz noise density prevents degradation of SNR in sub-100 kHz baseband processing paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4100-1 | Same 7.5 V rating but ±5% tolerance; non-RoHS; no "TR" tape-and-reel packaging | Lacks RoHS compliance and automated assembly support; suitable only for legacy repair or non-commercial builds | Select 1N4100C/TR when RoHS compliance, tape-and-reel delivery, and tighter 2% tolerance are required |
| 1N4100US | Same electrical specs but in DO-213AA surface-mount package; no axial leads | Requires SMT reflow process; eliminates through-hole mounting but increases layout density | Choose 1N4100US only when board space constraints mandate surface-mount implementation |
Compared with 1N4100-1 and 1N4100US, the 1N4100C/TR uniquely combines ±2% Zener tolerance, RoHS compliance, tape-and-reel packaging, and axial DO-35 form factor-making it optimal for new high-reliability through-hole designs requiring supply-chain continuity and environmental compliance.
Availability
1N4100C/TR is available at Aetrix Electronics and suitable for avionics power reference, satellite DC-DC feedback, and downhole instrumentation requiring stable component supply with full traceability and long-lifecycle support.
Supply support for 1N4100C/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) is a U.S.-based semiconductor company specializing in high-reliability analog, RF, and radiation-hardened components for aerospace, defense, and industrial markets.
The 1N4100C/TR belongs to Microsemi's legacy MIL-qualified Zener diode family, designed specifically for precision voltage regulation in mission-critical systems where parameter stability, hermeticity, and extended temperature operation are mandatory.
FAQ
What is the Zener voltage tolerance of the 1N4100C/TR?
The 1N4100C/TR has a nominal Zener voltage of 7.5 V with a ±2% tolerance, meaning its actual regulation voltage falls between 7.35 V and 7.65 V at 250 mA test current and 25 °C ambient. This tighter tolerance versus standard ±5% variants supports higher-accuracy feedback and reference applications.
Is the 1N4100C/TR RoHS compliant?
Yes, the 1N4100C/TR is RoHS compliant, as indicated by the "e3" suffix in its full JEDEC designation (1N4100C-1e3). The RoHS-compliant version uses annealed matte-tin plating on commercial-grade terminals and meets EU Directive 2011/65/EU requirements.
What does the "TR" suffix mean in 1N4100C/TR?
The "TR" suffix in 1N4100C/TR denotes tape-and-reel packaging per EIA-296 standard, enabling automated pick-and-place assembly. This format is not present on bare part numbers like 1N4100C-1 and is essential for high-volume manufacturing of boards using the 1N4100C/TR.
What is the maximum power dissipation of the 1N4100C/TR at 100 °C ambient?
At 100 °C ambient, the 1N4100C/TR's power dissipation must be linearly derated from 500 mW starting at 50 °C, reaching zero at 175 °C. At 100 °C, its rated power is 250 mW - calculated as 500 mW × (1 − (100−50)/(175−50)) = 250 mW - ensuring safe junction temperature operation.
Does the 1N4100C/TR require external heat sinking?
No, the 1N4100C/TR does not require external heat sinking under typical conditions. With 250 °C/W junction-to-lead thermal resistance and 500 mW max power, its junction temperature rise above lead temperature is ≤125 °C at full load - within its –65 °C to +175 °C rating when leads are ≥10 mm long and mounted per spec.
1N4100C/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AA, DO-7, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 7.5 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 200 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 5.7 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-7
1N4100C/TR FAQ
1.How can I place an order for 1N4100C/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4100C/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 1N4100C/TR reliable?
The price and inventory of 1N4100C/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4100C/TR is usually 5 days.
3.What payment methods are accepted for 1N4100C/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4100C/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4100C/TR?
1N4100C/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4100C/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 1N4100C/TR?
For technical support, including 1N4100C/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4100C/TR requirements.
6.How does Aetrix verify that 1N4100C/TR is sourced from the original manufacturer or authorized distributors?
All 1N4100C/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 1N4100C/TR meets industry standards.
7.What is the process for return or replacement of 1N4100C/TR?
All 1N4100C/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N4100C/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 1N4100C/TR part is unused and in its original packaging.
Return procedure for 1N4100C/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4100C/TR Tags
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