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Microchip Technology JANS1N4103-1/TR
- Part No.:
- JANS1N4103-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4103-1/TR.pdf
- Description:
- DIODE ZENER 9.1V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:5,083
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Product details
Overview
JANS1N4103-1/TR from Microsemi is a 500 mW, 9.1 V Zener voltage regulator diode in DO-35 glass axial-leaded package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability aerospace and defense applications. It delivers ±5% Zener tolerance, 250 mA test current, 200 Ω dynamic impedance at 25 °C, and operates across –65 °C to +175 °C junction temperature range.
For engineers reviewing the JANS1N4103-1/TR datasheet, JANS1N4103-1/TR pinout, JANS1N4103-1/TR application, or JANS1N4103-1/TR equivalent, key selection criteria include radiation-hardened performance, low noise density (1 µV/√Hz), hermetic glass sealing, metallurgical bond construction, and compliance with military reliability screening levels up to JANS.
Technical Context
This Zener diode operates in reverse-bias breakdown mode to maintain stable 9.1 V regulation over wide current (0.5–7.0 mA) and temperature (–65 °C to +175 °C) ranges. Its internal metallurgical bond ensures mechanical robustness under thermal cycling and shock, while the DO-35 glass package provides hermeticity and low parasitic capacitance (~4 pF).
The device exhibits a positive temperature coefficient of +0.080 %/°C, enabling predictable voltage drift in high-temperature environments. Maximum reverse leakage is 0.5 µA at 7.0 V, and dynamic impedance remains stable at 200 Ω when biased at 250 mA test current - critical for precision reference and voltage-clamp functions in analog signal chains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 9.1 V @ 250 mA - precise regulation point for reference and clamp circuits |
| Power Dissipation | 500 mW - supports continuous operation at full rating up to 50 °C ambient before linear derating |
| Zener Impedance ZZT | 200 Ω - ensures minimal output voltage variation under load transients |
| Reverse Leakage IR | 0.5 µA @ 7.0 V - enables ultra-low standby current in sensing and bias networks |
| Noise Density | 1 µV/√Hz - suitable for low-noise analog references and precision instrumentation |
| Temp Coefficient αVZ | +0.080 %/°C - predictable positive drift simplifies thermal compensation design |
| Junction Temp Range | –65 °C to +175 °C - validated for extreme-environment deployment in space and avionics |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by color band; leads are tin-lead or RoHS-compliant matte-tin plated and solderable per MIL-STD-750 method 2026. Weight ≈ 0.2 g; body diameter 1.42–2.29 mm, length 3.56–5.08 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node during Zener operation; used for forward-voltage clamping if needed |
| Cathode (banded end) | Zener regulation terminal | Must be held at higher potential than anode to enable reverse-breakdown regulation at 9.1 V |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgically bonded construction | Eliminates interfacial delamination risk under thermal cycling and mechanical stress |
| JANS-level qualification | Fully screened per MIL-PRF-19500/435 for radiation hardness and long-term reliability in space systems |
| Hermetically sealed glass package | Prevents moisture ingress and parameter shift over decades of operation in vacuum or humid environments |
| Low noise density | 1 µV/√Hz enables use in precision voltage references without added filtering |
| ESD immunity | Non-sensitive per MIL-STD-750 Method 1020 - no special handling required during assembly |
Applications
| Avionics Power Monitoring | Satellite Voltage Reference |
|---|---|
Use Scenario: Monitoring regulated bus voltage in flight control computers where deviation beyond ±0.5 V triggers fault response. IC Role / Device Role / Timing Role: Zener diode acting as precision shunt reference for comparator input. Use Value: Stable 9.1 V threshold with <0.5 µA leakage ensures accurate trip-point detection across –55 °C to +125 °C operating range. | Use Scenario: Providing stable bias voltage for radiation-tolerant op-amps in star tracker analog front-ends. IC Role / Device Role / Timing Role: Low-noise shunt reference source for gain-setting networks. Use Value: 1 µV/√Hz noise density prevents signal-to-noise degradation in low-light CCD readout paths. |
| Nuclear Instrumentation | Tactical Radio Biasing |
Use Scenario: Calibrating gamma-ray detector pulse-height analyzers requiring traceable voltage standards. IC Role / Device Role / Timing Role: Primary voltage reference in portable field calibration equipment. Use Value: JANS qualification guarantees parameter stability after 100 krad(Si) total ionizing dose exposure. | Use Scenario: Setting bias points for RF power amplifier stages in manpack radios operating in desert environments. IC Role / Device Role / Timing Role: Temperature-stable Zener clamp protecting base-emitter junctions. Use Value: +0.080 %/°C tempco allows predictable headroom margin up to +85 °C ambient without recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4103US-1 | Same electrical specs but in DO-213AA surface-mount package; no axial leads | Used where board space is constrained and reflow assembly is required | Select when transitioning from through-hole to SMT layout; requires footprint redesign |
| JANTXV1N4103-1 | Identical Zener parameters but qualified only to JANTXV level (not JANS); lower radiation tolerance | Suitable for ground-based military systems where TID < 30 krad(Si) is acceptable | Choose for cost-sensitive programs where full JANS screening is not mandated |
Compared with JANS1N4103-1/TR, the 1N4103US-1 offers identical regulation performance in a compact SMT form factor, while JANTXV1N4103-1 reduces cost and lead time by omitting JANS-level radiation testing - both require validation against system-level reliability requirements.
Availability
JANS1N4103-1/TR is available at Aetrix Electronics and suitable for avionics power monitoring, satellite voltage reference, and nuclear instrumentation requiring stable component supply across extended temperature and radiation environments.
Supply support for JANS1N4103-1/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 JANS1N4103-1/TR belongs to Microsemi's legacy MIL-PRF-19500/435-qualified Zener diode family, engineered specifically for radiation-hardened voltage regulation in mission-critical platforms.
FAQ
What is the Zener voltage tolerance for JANS1N4103-1/TR?
JANS1N4103-1/TR has a nominal Zener voltage of 9.1 V with ±5% tolerance, consistent with JEDEC-standard 1N4099–1N4135 series specifications. This tolerance applies at 250 mA test current and 25 °C ambient, and is maintained across the full JANS qualification temperature range (–65 °C to +175 °C).
Is JANS1N4103-1/TR suitable for space applications?
Yes, JANS1N4103-1/TR is qualified to JANS level per MIL-PRF-19500/435 and inherently radiation-hardened as documented in Microsemi MicroNote 050. It is routinely deployed in LEO and GEO satellite subsystems for voltage reference and overvoltage protection where total ionizing dose resistance and parametric stability are mandatory.
What is the maximum Zener current for JANS1N4103-1/TR?
The maximum Zener current IZM for JANS1N4103-1/TR is 7.0 mA at 25 °C, derived from its 500 mW power rating and 9.1 V Zener voltage. At elevated temperatures, this value decreases linearly per the derating curve - reaching zero at +175 °C junction temperature.
Does JANS1N4103-1/TR have RoHS compliance?
No, JANS1N4103-1/TR is not RoHS compliant. Per the nomenclature guide in the datasheet, RoHS versions (suffix "e3") are available only for commercial-grade parts. JANS-level devices retain tin-lead plating to meet MIL-STD-750 solderability and reliability requirements.
How is polarity marked on JANS1N4103-1/TR?
JANS1N4103-1/TR uses a cathode band - a single colored ring near one end of the DO-35 glass body - to indicate the cathode terminal. For proper Zener regulation, the banded end must be held at a higher potential than the unmarked (anode) end. This marking is verified per MIL-STD-750 method 2015.
JANS1N4103-1/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):
- 9.1 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 200 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 7 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANS1N4103-1/TR FAQ
1.How can I place an order for JANS1N4103-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4103-1/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 JANS1N4103-1/TR reliable?
The price and inventory of JANS1N4103-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANS1N4103-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4103-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4103-1/TR transactions.
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4.How is shipping managed for JANS1N4103-1/TR?
JANS1N4103-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4103-1/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 JANS1N4103-1/TR?
For technical support, including JANS1N4103-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4103-1/TR requirements.
6.How does Aetrix verify that JANS1N4103-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4103-1/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 JANS1N4103-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4103-1/TR?
All JANS1N4103-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4103-1/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 JANS1N4103-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4103-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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