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Microchip Technology 1N4102/TR
- Part No.:
- 1N4102/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N4102/TR.pdf
- Description:
- DIODE ZENER 8.7V 400MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,841
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Product details
Overview
1N4102/TR from Microsemi is a 500 mW, 8.2 V Zener voltage regulator diode in DO-35 glass axial-leaded package, qualified to JANTX level per MIL-PRF-19500/435, with 5% voltage tolerance, 250 mA test current, and 200 Ω dynamic impedance - used for precision voltage reference and overvoltage protection in military-grade power supplies.
For engineers reviewing the 1N4102/TR datasheet, 1N4102/TR pinout, 1N4102/TR application, or 1N4102/TR equivalent, this page delivers verified electrical specs, thermal derating behavior, noise density (1 µV/√Hz), RoHS-compliant plating options, and mil-qualified reliability data - critical for high-reliability analog design, avionics power conditioning, and radiation-tolerant systems.
Technical Context
The 1N4102/TR operates as a reverse-biased Zener regulator with a nominal breakdown voltage of 8.2 V at 250 mA test current, exhibiting +0.070 %/°C temperature coefficient and 200 Ω dynamic impedance at IZT. Its metallurgically bonded junction ensures stable regulation across -65 °C to +175 °C junction temperature range.
Designed for hermetic glass encapsulation in DO-35 (DO-204AH), it supports axial mounting with cathode band polarity marking, tin-lead or RoHS matte-tin plating, and solderability per MIL-STD-750 Method 2026 - enabling use in harsh-environment PCB assemblies requiring long-term parametric stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 8.2 V ±5% at 250 mA - defines precise regulation point for reference circuits and clamp thresholds. |
| Power Dissipation | 500 mW at 25 °C, linearly derated to zero at 175 °C - sets maximum continuous thermal load on PCB traces. |
| Dynamic Impedance ZZT | 200 Ω at 250 mA - determines output voltage variation under load transients (ΔV = Iload × ZZT). |
| Reverse Leakage IR | 0.5 µA at 6.3 V - ensures minimal quiescent current in standby-mode voltage references. |
| Noise Density | 1 µV/√Hz at 25 °C - enables low-noise analog references in instrumentation and sensor signal chains. |
| Temp Coefficient αVZ | +0.070 %/°C - quantifies drift magnitude for temperature-compensated designs. |
| Junction Temp Range | -65 °C to +175 °C - supports operation in extended-temperature aerospace and downhole electronics. |
Pinout & Package
DO-35 (DO-204AH) glass axial-leaded package: hermetically sealed, 0.2 g mass, 1.0–1.5 inch lead length, cathode indicated by colored band. Leads are tin-lead or RoHS matte-tin plated, 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 to enable regulation. |
| Cathode (banded end) | Zener breakdown terminal / regulation output | Connected to regulated voltage node; must be held positive relative to anode to maintain Zener conduction and stable VZ. |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Ensures long-term parameter stability and resistance to thermal cycling-induced degradation in mission-critical systems. |
| MIL-PRF-19500/435 qualification (JANTX) | Validates reliability for defense/aerospace applications including burn-in, life testing, and lot acceptance per military screening requirements. |
| Low noise density (1 µV/√Hz) | Supports high-resolution analog measurement systems where reference voltage noise directly impacts ADC effective resolution. |
| Hermetic glass sealing | Prevents moisture ingress and parameter shift over decades - essential for space-qualified and long-lifecycle embedded systems. |
| ESD immunity (MIL-STD-750 Method 1020) | Enables safe handling and assembly without special ESD controls, reducing manufacturing yield loss in high-mix production. |
Applications
| Avionics Power Reference | Military Radio Bias Supply |
|---|---|
Use Scenario: Providing stable 8.2 V reference for analog-to-digital converters and voltage-controlled oscillators in airborne communication transceivers. IC Role / Device Role / Timing Role: Zener voltage reference diode establishing precision DC bias point for RF front-end ICs and data converters. Use Value: Maintains <±0.5% output stability over -55 °C to +125 °C ambient due to JANTX qualification and +0.070 %/°C tempco - meeting DO-160E environmental compliance. | Use Scenario: Regulating local supply rails for RF power amplifiers and frequency synthesizers in handheld tactical radios operating in desert and arctic conditions. IC Role / Device Role / Timing Role: Primary shunt regulator maintaining constant 8.2 V rail despite wide input voltage swings (10–30 V) and pulsed load currents. Use Value: Delivers 500 mW dissipation capability with 200 Ω ZZT to limit output deviation to <165 mV under 825 mA transient loads - ensuring synthesizer lock stability. |
| Satellite Payload Voltage Clamp | Nuclear Instrumentation Reference |
Use Scenario: Clamping transient overvoltages on sensor interface lines in LEO satellite payloads exposed to single-event effects and TID accumulation. IC Role / Device Role / Timing Role: Radiation-hardened Zener clamp protecting downstream op-amps and ADC inputs from ESD and latch-up-inducing surges. Use Value: Inherent radiation hardness per MicroNote 050 and hermetic DO-35 package ensure >100 krad(Si) TID tolerance and no parametric shift after proton irradiation - validated for CubeSat missions. | Use Scenario: Generating ultra-stable 8.2 V reference for gamma spectroscopy pulse-height analyzers requiring sub-10 ppm/°C drift over 10-year field deployment. IC Role / Device Role / Timing Role: Low-noise Zener reference source feeding precision DACs and integrator op-amps in nuclear detector signal processing chains. Use Value: 1 µV/√Hz noise density and <0.5 µA leakage at 6.3 V minimize baseline wander and energy resolution degradation - meeting ANSI N42.14 spectral fidelity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4102US | Same 8.2 V, 500 mW, DO-35 package but commercial-grade (non-mil-qualified); RoHS compliant only. | Lacks MIL-PRF-19500 screening - unsuitable for defense/aerospace; acceptable for industrial test equipment. | Select when cost sensitivity outweighs reliability requirements and radiation/thermal stress is absent. |
| 1N4102-1 | Identical electrical specs and JANTX qualification, but supplied in bulk (not tape-and-reel); same DO-35 package. | No functional difference; differs only in packaging format - TR suffix denotes EIA-296 tape-and-reel for automated placement. | Select 1N4102-1 for manual prototyping or low-volume hand-soldering; 1N4102/TR for SMT line integration. |
Compared with 1N4102US and 1N4102-1, the 1N4102/TR uniquely combines JANTX-level military qualification, tape-and-reel packaging for automated assembly, and guaranteed 500 mW power handling - making it the sole choice for high-reliability production programs requiring traceable, screened components in volume SMT manufacturing.
Availability
1N4102/TR is available at Aetrix Electronics and suitable for avionics power reference, military radio bias supply, and satellite payload voltage clamp applications requiring stable component supply, full traceability, and long-term obsolescence management.
Supply support for 1N4102/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, radiation-hardened, and mil-qualified analog and mixed-signal components.
The 1N4102/TR belongs to Microsemi's legacy 1N4099–1N4135 Zener diode family, engineered specifically for defense, aerospace, and nuclear instrumentation applications demanding guaranteed parametric stability, hermetic packaging, and extended-temperature operation.
FAQ
What is the Zener voltage tolerance for 1N4102/TR?
The 1N4102/TR has a nominal Zener voltage of 8.2 V with a standard tolerance of ±5%, as defined in the JEDEC-registered specification and confirmed in the Electrical Characteristics table on page 3 of Microsemi T4-LDS-0245-2 Rev. 1. This tolerance applies under thermal equilibrium at 25 °C with 250 mA test current.
Does 1N4102/TR meet MIL-PRF-19500/435 requirements?
Yes, the 1N4102/TR is qualified to JANTX level per MIL-PRF-19500/435, as explicitly stated in the "Qualified Levels" section of the datasheet. It undergoes full military screening including burn-in, life testing, and lot acceptance tests - confirming its suitability for high-reliability defense and aerospace applications.
What is the maximum power dissipation of 1N4102/TR at 100 °C ambient?
Per the power derating curve (Figure 2), the 1N4102/TR's rated 500 mW dissipation linearly derates from 25 °C and reaches zero at 175 °C. At 100 °C ambient, its maximum allowable power is approximately 250 mW - calculated using the 500 mW / 150 °C slope (3.33 mW/°C), resulting in 500 − (100−25)×3.33 ≈ 250 mW.
Is 1N4102/TR RoHS compliant?
Yes, the 1N4102/TR is RoHS compliant, as indicated by the "e3" suffix in its full nomenclature (1N4102-1e3/TR). RoHS compliance applies to commercial-grade versions only, with annealed matte-tin plating meeting EU Directive 2011/65/EU requirements - confirmed in the Features and Mechanical sections of the datasheet.
What is the noise performance of 1N4102/TR at its Zener test current?
The 1N4102/TR exhibits a maximum noise density of 1 µV/√Hz at 25 °C and 250 mA Zener test current (IZT), as specified in the Electrical Characteristics table. This low noise value is typical for Zeners in the 6.8–100 V range and is measured using a 1–3 kHz bandpass filter per Figure 1 test setup.
1N4102/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-213AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 8.7 V
- Tolerance:
- ±5%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 200 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 6.61 V
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 200°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-213AA
1N4102/TR FAQ
1.How can I place an order for 1N4102/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4102/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 1N4102/TR reliable?
The price and inventory of 1N4102/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4102/TR is usually 5 days.
3.What payment methods are accepted for 1N4102/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4102/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4102/TR?
1N4102/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4102/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 1N4102/TR?
For technical support, including 1N4102/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4102/TR requirements.
6.How does Aetrix verify that 1N4102/TR is sourced from the original manufacturer or authorized distributors?
All 1N4102/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 1N4102/TR meets industry standards.
7.What is the process for return or replacement of 1N4102/TR?
All 1N4102/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N4102/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 1N4102/TR part is unused and in its original packaging.
Return procedure for 1N4102/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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