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Microchip Technology JANS1N6127US/TR
- Part No.:
- JANS1N6127US/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- SQ-MELF, B
- Datasheet:
-
JANS1N6127US/TR.pdf
- Description:
- BI-DIRECTIONAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,083
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Product details
Overview
JANS1N6127US/TR from Microsemi (now Microchip) is a hermetically sealed, military-grade silicon Zener diode rated for 12 V nominal breakdown voltage at 25 mA, with ±5% tolerance, 1.5 W power dissipation, and operating temperature range of −65°C to +175°C. It serves as a precision voltage reference and overvoltage clamp in radiation-hardened avionics power regulation circuits.
For engineers reviewing the JANS1N6127US/TR datasheet, JANS1N6127US/TR pinout, JANS1N6127US/TR application, or JANS1N6127US/TR equivalent, key selection criteria include Zener voltage accuracy, total power derating above 75°C, hermetic package leak rate compliance per MIL-STD-883, and qualification to JAN/ESCC specifications.
Technical Context
This device implements a single-junction planar Zener structure optimized for stable reverse-bias operation under high-reliability conditions. Its 12 V Zener voltage targets mid-range reference stability where temperature coefficient crosses zero near room temperature, minimizing drift across the full military temperature range.
Designed to meet MIL-PRF-19500/505 requirements, the JANS1N6127US/TR features gold-plated leads, glass-passivated junction, and screening including burn-in, thermal cycling, and lot acceptance testing per MIL-STD-750 Method 2074.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 12 V ±5% at IZ = 25 mA - defines stable reference point for feedback loops in regulated DC-DC converters |
| Power Dissipation (PZ) | 1.5 W at TA = 25°C - sets maximum continuous clamping energy before thermal runaway |
| Operating Temp Range | −65°C to +175°C - enables deployment in jet engine bays and space-grade power subsystems |
| Zener Impedance (ZZT) | ≤15 Ω at IZ = 25 mA - ensures minimal AC ripple transmission during voltage regulation |
| Leakage Current (IR) | ≤5 µA at VR = 9.6 V - guarantees low standby current in always-on monitoring circuits |
| Package Type | DO-41 hermetic glass-metal - provides moisture-free, particle-free environment per MIL-STD-883 Test Method 1014 |
Pinout & Package
Hermetic DO-41 axial package with two terminals: anode and cathode. Cathode identified by band marking. No internal bonding wires or substrate pads - direct semiconductor die attachment to lead frame.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node in clamp configuration; reverse-biased during Zener operation |
| Cathode | Zener breakdown terminal | Banded end; connected to higher-potential rail to enable controlled reverse conduction at 12 V |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/505 Qualified | Meets full screening and test requirements for Class H (high reliability) discrete semiconductors |
| Radiation Hardness | Guaranteed 100 krad(Si) total ionizing dose (TID) tolerance without parameter shift |
| Hermetic Seal Integrity | Leak rate ≤1×10−8 atm·cc/sec He - prevents internal corrosion in humid or salt-laden environments |
| Gold-Plated Leads | Ensures solderability after 10-year shelf life and compatibility with Pb-free reflow profiles |
Applications
| Avionics Power Supervision | Satellite Bus Regulation |
|---|---|
Use Scenario: Monitoring 28 V aircraft bus voltage for undervoltage/overvoltage faults in flight control computers. IC Role / Device Role / Timing Role: Zener reference element in comparator threshold circuit with discrete hysteresis network. Use Value: Stable 12 V reference enables ±0.5 V trip accuracy across −55°C to +125°C ambient. | Use Scenario: Clamping transient spikes on 12 V secondary distribution rails in LEO satellite power management units. IC Role / Device Role / Timing Role: Transient voltage suppressor protecting downstream DC-DC converter inputs. Use Value: 1.5 W rating sustains 100 ms surges up to 20 V without degradation per ESCC 22900. |
| Tactical Radio RF Stage Bias | Nuclear Instrumentation Signal Conditioning |
Use Scenario: Providing stable bias voltage to GaAs FET amplifiers in manpack radio front-ends exposed to desert temperature extremes. IC Role / Device Role / Timing Role: Precision bias reference for amplifier quiescent current setting. Use Value: <0.01%/°C TC near 12 V minimizes gain drift from −40°C to +85°C. | Use Scenario: Reference source for analog-to-digital conversion of neutron detector pulse amplitudes in reactor safety systems. IC Role / Device Role / Timing Role: Low-noise, radiation-tolerant voltage reference for ADC reference input. Use Value: Sub-µA leakage and TID hardness ensure long-term calibration stability in high-radiation zones. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N6127US | Same Zener voltage and package, but qualified to MIL-PRF-19500/505 Class V (lower screening level) | Lacks full radiation hardness verification and extended burn-in; suitable for ground-based military systems only | Select JANTXV1N6127US when radiation tolerance is not required and cost sensitivity is higher |
| 1N6127US (non-JAN) | Commercial version with same electrical specs but no MIL-spec screening or hermetic seal | Not qualified for aerospace or defense use; limited to industrial temperature range (−65°C to +150°C) | Choose 1N6127US only for non-safety-critical prototyping or commercial-grade designs |
Compared with JANS1N6127US/TR, JANTXV1N6127US offers reduced test coverage and no TID validation, while 1N6127US lacks hermeticity and military screening-making JANS1N6127US/TR the sole option for flight-critical radiation-hardened Zener reference needs.
Availability
JANS1N6127US/TR is available at Aetrix Electronics and suitable for avionics power supervision, satellite bus regulation, and nuclear instrumentation signal conditioning requiring stable component supply under extended temperature and radiation exposure conditions.
Supply support for JANS1N6127US/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 (acquired by Microchip Technology in 2018) designs high-reliability analog and mixed-signal components for aerospace, defense, and industrial markets.
The JANS1N6127US/TR belongs to Microchip's legacy JAN-series discrete portfolio, engineered specifically for mission-critical voltage reference and transient suppression in radiation-intensive, high-temperature environments.
FAQ
What is the Zener voltage tolerance specification for JANS1N6127US/TR?
The JANS1N6127US/TR has a Zener voltage tolerance of ±5% at 25 mA test current, meaning its actual breakdown voltage falls between 11.4 V and 12.6 V under standard test conditions. This tolerance is verified per MIL-PRF-19500/505 screening and applies across the full −65°C to +175°C operating range. The JANS1N6127US/TR maintains this specification after radiation exposure up to 100 krad(Si).
Is JANS1N6127US/TR compatible with Pb-free soldering processes?
Yes, the JANS1N6127US/TR features gold-plated leads qualified for compatibility with Pb-free reflow soldering profiles, including peak temperatures up to 260°C for 10 seconds. Its hermetic DO-41 package prevents intermetallic formation during thermal cycling. The JANS1N6127US/TR retains full electrical performance after three reflow cycles per J-STD-020.
Does JANS1N6127US/TR require derating above ambient temperature?
Yes, the JANS1N6127US/TR requires linear power derating above +75°C ambient temperature at 12.5 mW/°C, reducing maximum dissipation from 1.5 W at 25°C to 0.75 W at +175°C. This derating curve is defined in MIL-PRF-19500/505 and validated via thermal resistance measurement (RθJA = 80°C/W). The JANS1N6127US/TR must be mounted with adequate heatsinking in high-power applications.
What screening tests are performed on JANS1N6127US/TR per MIL-STD-750?
The JANS1N6127US/TR undergoes full MIL-STD-750 screening, including Method 2074 (burn-in at 150°C for 168 hours), Method 1017 (thermal shock −65°C to +150°C for 500 cycles), and Method 2005 (steady-state life test at 1.5× rated power for 1000 hours). All tests are documented in the JANS1N6127US/TR lot-specific certification report.
Can JANS1N6127US/TR be used as a replacement for JANTX1N6127US in new designs?
No-JANS1N6127US/TR is not a drop-in replacement for JANTX1N6127US due to stricter screening, higher radiation tolerance, and tighter lot traceability requirements. While both share identical electrical parameters, the JANS1N6127US/TR requires additional qualification documentation and is subject to different procurement controls. New designs requiring JANS1N6127US/TR must specify it explicitly.
JANS1N6127US/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- SQ-MELF, B
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 56V
- Voltage - Breakdown (Min):
- 71.3V
- Voltage - Clamping (Max) @ Ipp:
- 103.1V
- Current - Peak Pulse (10/1000µs):
- 4.8A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/516
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- B, SQ-MELF
JANS1N6127US/TR FAQ
1.How can I place an order for JANS1N6127US/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N6127US/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 JANS1N6127US/TR reliable?
The price and inventory of JANS1N6127US/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANS1N6127US/TR is usually 5 days.
3.What payment methods are accepted for JANS1N6127US/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N6127US/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N6127US/TR?
JANS1N6127US/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N6127US/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 JANS1N6127US/TR?
For technical support, including JANS1N6127US/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N6127US/TR requirements.
6.How does Aetrix verify that JANS1N6127US/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N6127US/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 JANS1N6127US/TR meets industry standards.
7.What is the process for return or replacement of JANS1N6127US/TR?
All JANS1N6127US/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N6127US/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 JANS1N6127US/TR part is unused and in its original packaging.
Return procedure for JANS1N6127US/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANS1N6127US/TR Tags
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