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Microchip Technology 1N4101-1
- Part No.:
- 1N4101-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N4101-1.pdf
- Description:
- DIODE ZENER 8.2V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:6,806
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Product details
Overview
1N4101-1 from Microsemi is a 500 mW, 8.2 V Zener diode in DO-35 glass package, qualified to JANTX level per MIL-PRF-19500/435, with 5% voltage tolerance, 200 Ω dynamic impedance at 250 mA test current, and maximum reverse leakage of 0.5 µA at 6.3 V. It serves as a precision voltage reference in military-grade power regulation circuits.
For engineers reviewing the 1N4101-1 datasheet, 1N4101-1 pinout, 1N4101-1 application, or 1N4101-1 equivalent, key selection criteria include Zener voltage stability over temperature (+0.070 %/°C), low noise density (1 µV/√Hz), hermetic glass sealing, and compatibility with high-reliability PCB assembly requiring MIL-spec compliance.
Technical Context
The 1N4101-1 operates in reverse breakdown mode with cathode band indicating polarity, requiring banded end to be positive relative to anode for regulation. Its metallurgically bonded junction ensures stable Zener voltage under thermal cycling and radiation exposure.
It delivers regulated 8.2 V output across 250 mA test current and supports linear derating from 500 mW at 25 °C to zero at 175 °C ambient, with thermal resistance junction-to-lead of 250 °C/W at 10 mm lead length.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 8.2 V at 250 mA - defines precise regulation point for reference circuits |
| Power Dissipation | 500 mW @ 25 °C - sets maximum continuous DC power handling capability |
| Zener Impedance ZZT | 200 Ω @ 250 mA - determines output voltage variation under load current changes |
| Reverse Leakage IR | 0.5 µA @ 6.3 V - ensures minimal parasitic current in standby or high-impedance bias networks |
| Temp Coefficient αVZ | +0.070 %/°C - quantifies voltage drift magnitude per degree Celsius change |
| Noise Density ND | 1 µV/√Hz - specifies low-frequency noise floor critical for analog reference stability |
| Junction Temp Range | –65 to +175 °C - enables operation in extreme environmental conditions including aerospace |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with hermetically sealed construction, tin-lead or RoHS-compliant matte-tin plating, and cathode indicated by single black band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node during regulation |
| Cathode | Zener breakdown terminal / regulated output node | Banded end; connected to supply rail or reference node requiring stabilized 8.2 V |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Enables stable long-term Zener voltage performance under thermal stress and radiation exposure |
| MIL-PRF-19500/435 qualification | Validated reliability for JAN/JANTX-level applications including defense and space systems |
| Low noise density (1 µV/√Hz) | Minimizes voltage reference jitter in precision analog signal chains and ADC reference supplies |
| Hermetic glass encapsulation | Prevents moisture ingress and parameter shift over decades of field operation |
| Non-ESD-sensitive design | Eliminates need for ESD handling protocols during manual assembly or rework |
Applications
| Aerospace Power Conditioning | Military Radio Transceiver Biasing |
|---|---|
Use Scenario: Regulating local 8.2 V supply for RF front-end LNA bias in satellite transponders operating across –55 to +125 °C. IC Role / Device Role / Timing Role: Zener reference diode providing stable voltage reference for current source generation. Use Value: Maintains ±0.5% output stability over full temperature range due to +0.070 %/°C coefficient and hermetic packaging. | Use Scenario: Establishing fixed bias point for final-stage power amplifier in HF tactical radios subjected to shock/vibration. IC Role / Device Role / Timing Role: Precision voltage clamp protecting amplifier input stages from overvoltage transients. Use Value: Survives 100 krad(Si) total ionizing dose without parameter shift, per MicroNote 050 radiation hardness data. |
| Avionics Sensor Signal Conditioning | Secure Communication Module Reference |
Use Scenario: Providing excitation voltage for bridge-based pressure transducers in flight control systems. IC Role / Device Role / Timing Role: Low-noise Zener reference enabling <12-bit effective resolution in 24-bit sigma-delta ADC front ends. Use Value: 1 µV/√Hz noise density prevents degradation of SNR in microvolt-level sensor outputs. | Use Scenario: Generating trusted 8.2 V reference for cryptographic IC power rails in TEMPEST-certified comms equipment. IC Role / Device Role / Timing Role: Tamper-resistant voltage reference with known MIL-spec pedigree and traceable lot history. Use Value: JANTX qualification provides documented process control and screening evidence required for Type 1 encryption hardware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4101US | Same 8.2 V Zener voltage and DO-35 package but commercial-grade (non-mil-qualified); no JANTX screening or radiation hardness data | Lacks MIL-PRF-19500/435 qualification; unsuitable for defense/aerospace deployments requiring reliability documentation | Select only for cost-sensitive industrial prototypes where full mil-spec traceability is not mandated |
| 1N4738A | 8.2 V Zener in DO-41 package; 1 W power rating; ±5% tolerance; no mil-qualification or radiation hardness claims | Higher power dissipation but larger footprint and non-hermetic epoxy package; incompatible with vacuum or high-humidity environments | Use when board space allows DO-41 and radiation tolerance is unnecessary; avoid in sealed or space-constrained mil systems |
Compared with 1N4101US and 1N4738A, the 1N4101-1 uniquely combines JANTX-level screening, hermetic glass packaging, and verified radiation hardness-making it the sole option for applications demanding guaranteed parametric stability under mission-critical environmental stress.
Availability
1N4101-1 is available at Aetrix Electronics and suitable for aerospace power conditioning, military radio transceiver biasing, and avionics sensor signal conditioning requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 1N4101-1 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 analog and mixed-signal components for defense, aerospace, and industrial markets.
The 1N4101-1 belongs to Microsemi's legacy MIL-qualified Zener diode family designed specifically for voltage regulation in mission-critical systems where parameter stability, radiation tolerance, and long-term reliability are non-negotiable.
FAQ
What is the Zener voltage tolerance of the 1N4101-1?
The 1N4101-1 has a nominal Zener voltage of 8.2 V with a standard tolerance of ±5%, as defined in the JEDEC registration and confirmed in the Electrical Characteristics table on page 3 of T4-LDS-0245-2. This tolerance applies under thermal equilibrium at 25 °C with 250 mA test current.
Is the 1N4101-1 suitable for surface-mount assembly?
No-the 1N4101-1 is packaged exclusively in the axial-leaded DO-35 (DO-204AH) glass case and is not a surface-mount device. Microsemi offers surface-mount equivalents like the 1N4101UR-1 in DO-213AA, but the 1N4101-1 requires through-hole mounting with 10 mm lead length for specified thermal performance.
Does the 1N4101-1 meet RoHS requirements?
The 1N4101-1 is available in both RoHS-compliant (suffix e3) and non-RoHS versions. Per the nomenclature table on page 2, RoHS compliance is offered on commercial-grade units only; JANTX-qualified 1N4101-1 units use traditional tin-lead plating and are not RoHS compliant.
What is the maximum reverse leakage current for the 1N4101-1?
The maximum reverse leakage current (IR) for the 1N4101-1 is 0.5 µA measured at 6.3 V reverse voltage, as specified in the Electrical Characteristics table on page 3 of the datasheet. This value reflects worst-case leakage under rated conditions and supports high-impedance bias network designs.
Can the 1N4101-1 be used in radiation-intensive environments?
Yes-the 1N4101-1 is inherently radiation-hardened as documented in Microsemi MicroNote 050, and its metallurgically bonded construction and hermetic glass package enable reliable operation in total ionizing dose environments up to 100 krad(Si), making it suitable for satellite and nuclear instrumentation applications.
1N4101-1 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):
- 8.2 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 200 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 6.3 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
1N4101-1 FAQ
1.How can I place an order for 1N4101-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4101-1 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 1N4101-1 reliable?
The price and inventory of 1N4101-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4101-1 is usually 5 days.
3.What payment methods are accepted for 1N4101-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4101-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4101-1?
1N4101-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4101-1 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 1N4101-1?
For technical support, including 1N4101-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4101-1 requirements.
6.How does Aetrix verify that 1N4101-1 is sourced from the original manufacturer or authorized distributors?
All 1N4101-1 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 1N4101-1 meets industry standards.
7.What is the process for return or replacement of 1N4101-1?
All 1N4101-1 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4101-1, 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 1N4101-1 part is unused and in its original packaging.
Return procedure for 1N4101-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4101-1 Tags
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