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Microchip Technology JANS1N4100-1
- Part No.:
- JANS1N4100-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4100-1.pdf
- Description:
- DIODE ZENER 7.5V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:412
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Product details
Overview
JANS1N4100-1 from Microsemi is a 500 mW, 7.5 V metallurgically bonded glass Zener diode in DO-35 (DO-204AH) package, qualified to JANS level per MIL-PRF-19500/435. It delivers ±5% Zener voltage tolerance, 250 mA test current, 200 Ω dynamic impedance at IZT, and operates across –65 °C to +175 °C for high-reliability voltage regulation in aerospace power conditioning circuits.
For engineers reviewing the JANS1N4100-1 datasheet, JANS1N4100-1 pinout, JANS1N4100-1 application, or JANS1N4100-1 equivalent, key selection criteria include its JANS-level radiation hardness, low noise density (1 µV/√Hz), hermetic DO-35 packaging, and thermal resistance of 250 °C/W junction-to-lead - critical for space-grade analog reference and overvoltage protection designs.
Technical Context
This device functions as a precision shunt voltage regulator with a nominal Zener voltage of 7.5 V at 250 mA test current. Its metallurgical bond construction ensures stable breakdown characteristics under thermal cycling and ionizing radiation exposure.
The JANS1N4100-1 exhibits a positive temperature coefficient of +0.065 %/°C and maintains ≤1.0 µA reverse leakage at VR = 5.7 V. Its 200 Ω dynamic impedance at IZT supports stable regulation across load current variations in low-noise analog supply rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 7.5 V at 250 mA - defines regulated output voltage under nominal bias |
| Power Dissipation PM(AV) | 500 mW - sets maximum continuous thermal load on PCB with 3/8″ lead length |
| Zener Impedance ZZT | 200 Ω at IZT - determines output voltage variation under load transients |
| Reverse Leakage IR | ≤1.0 µA at 5.7 V - ensures minimal quiescent current in standby regulation |
| Temp Coefficient αVZ | +0.065 %/°C - quantifies drift magnitude over operating temperature range |
| Noise Density ND | 1 µV/√Hz - enables use in low-noise reference circuits without added filtering |
| Junction Temp Range | –65 °C to +175 °C - supports operation in extreme environmental conditions |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with hermetically sealed construction; cathode indicated by band; tin-lead or RoHS-compliant matte-tin plating; weight ≈0.2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node during Zener operation; carries full load current when regulating |
| Cathode (banded end) | Zener breakdown terminal | Connected to higher-potential node; establishes regulated voltage reference point at cathode-to-anode drop |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANS qualification | Validated for spaceflight and nuclear-hardened systems with full lot traceability and screening |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock and radiation exposure |
| Low noise density (1 µV/√Hz) | Reduces need for external filtering in precision voltage references and sensor excitation circuits |
| Hermetic glass DO-35 package | Prevents moisture ingress and parameter shift over decades in sealed enclosures |
| Radiation hardness per MicroNote 050 | Operates reliably after total ionizing dose >100 krad(Si) without parameter degradation |
Applications
| Avionics Power Reference | Satellite Bus Regulation |
|---|---|
Use Scenario: Providing stable 7.5 V reference for ADC biasing and op-amp feedback networks in flight control computers. IC Role / Device Role / Timing Role: Shunt voltage reference element maintaining accuracy despite wide ambient temperature swings and EMI. Use Value: Enables <±0.5% system-level voltage measurement accuracy over –55 °C to +125 °C due to low tempco and radiation stability. | Use Scenario: Regulating secondary power rail for telemetry interface ICs in LEO satellite payloads. IC Role / Device Role / Timing Role: Overvoltage clamp and precision bias source for isolated CAN transceivers and RS-422 line drivers. Use Value: Ensures uninterrupted operation after 100 krad(Si) TID exposure with no Zener voltage shift >0.1%. |
| Nuclear Instrumentation | Missile Guidance Sensor Bias |
Use Scenario: Supplying calibrated bias voltage to gamma-ray detector photomultiplier tube bases in reactor monitoring systems. IC Role / Device Role / Timing Role: Low-noise, high-stability shunt regulator establishing detector gain reference under neutron flux. Use Value: Delivers <1 µV/√Hz noise floor enabling sub-keV energy resolution without post-regulation filtering. | Use Scenario: Generating stable reference for MEMS gyroscope signal conditioning in tactical missile inertial navigation units. IC Role / Device Role / Timing Role: Temperature-compensated voltage reference for analog front-end amplifiers and DAC outputs. Use Value: Maintains <±0.02 V regulation error across –40 °C to +85 °C due to matched thermal coefficient and DO-35 thermal path. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4100-1 | Same electrical specs but qualified only to JANTXV level; lacks JANS radiation hardness validation | Suitable for high-reliability ground-based military systems where TID exposure is not expected | Select when full JANS screening and radiation testing are not required to reduce cost and lead time |
| 1N4100US-1 | Same Zener voltage and DO-213AA surface-mount package; 250 mW rating vs. 500 mW | Used in compact PCB layouts where axial leads are impractical but lower power dissipation is acceptable | Choose for space-constrained avionics modules needing SMT assembly compatibility and moderate derating |
Compared with JANTXV1N4100-1 and 1N4100US-1, the JANS1N4100-1 uniquely combines JANS-level radiation hardness, 500 mW power handling, and hermetic DO-35 packaging - making it the sole option for mission-critical spaceborne voltage references requiring zero parameter drift after radiation exposure.
Availability
JANS1N4100-1 is available at Aetrix Electronics and suitable for avionics power reference, satellite bus regulation, and nuclear instrumentation requiring stable component supply across extended product lifecycles and obsolescence-sensitive programs.
Supply support for JANS1N4100-1 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, radiation-hardened, and defense-grade analog and mixed-signal components.
The JANS1N4100-1 belongs to Microsemi's legacy MIL-PRF-19500/435 Zener diode family, engineered specifically for aerospace, defense, and nuclear applications demanding guaranteed parametric stability under extreme environmental stress.
FAQ
What is the Zener voltage tolerance for JANS1N4100-1?
JANS1N4100-1 has a nominal Zener voltage of 7.5 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 T4-LDS-0245-2 Rev. 1. This tolerance applies under thermal equilibrium at 25 °C with 250 mA test current.
Is JANS1N4100-1 compatible with lead-free soldering processes?
JANS1N4100-1 features tin-lead plating per MIL-STD-750 method 2026 and is rated for 10 s at 260 °C solder temperature. While RoHS-compliant versions exist for commercial grades (e.g., with e3 suffix), the JANS variant uses traditional tin-lead terminations and is not qualified for lead-free reflow profiles exceeding 260 °C.
What is the maximum reverse leakage current for JANS1N4100-1?
The maximum reverse leakage current (IR) for JANS1N4100-1 is 1.0 µA at VR = 5.7 V, as specified in the Electrical Characteristics table on page 3 of T4-LDS-0245-2 Rev. 1. This value is measured at 25 °C and reflects worst-case leakage under sub-breakdown bias.
Does JANS1N4100-1 require heatsinking in typical applications?
JANS1N4100-1 has a thermal resistance of 250 °C/W junction-to-lead when mounted with 3/8″ (10 mm) lead length from body. At 500 mW dissipation and 25 °C ambient, junction temperature rises ~125 °C - within its –65 °C to +175 °C rating. Heatsinking is not required if lead length and PCB copper area meet the FR4 mounting conditions described in the Maximum Ratings table.
How does the temperature coefficient affect JANS1N4100-1 performance?
JANS1N4100-1 has a temperature coefficient αVZ of +0.065 %/°C, meaning its Zener voltage increases by approximately 4.88 mV/°C near 7.5 V. This predictable positive drift allows compensation in precision references and ensures monotonic behavior across –65 °C to +175 °C without reversal or knee effects.
JANS1N4100-1 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):
- 7.5 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 200 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 5.7 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANS1N4100-1 FAQ
1.How can I place an order for JANS1N4100-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4100-1 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 JANS1N4100-1 reliable?
The price and inventory of JANS1N4100-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANS1N4100-1 is usually 5 days.
3.What payment methods are accepted for JANS1N4100-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4100-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N4100-1?
JANS1N4100-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4100-1 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 JANS1N4100-1?
For technical support, including JANS1N4100-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4100-1 requirements.
6.How does Aetrix verify that JANS1N4100-1 is sourced from the original manufacturer or authorized distributors?
All JANS1N4100-1 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 JANS1N4100-1 meets industry standards.
7.What is the process for return or replacement of JANS1N4100-1?
All JANS1N4100-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4100-1, 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 JANS1N4100-1 part is unused and in its original packaging.
Return procedure for JANS1N4100-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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