My Inquiry
My Account
Microchip Technology JANS1N6140AUS/TR
- Part No.:
- JANS1N6140AUS/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- SQ-MELF, C
- Datasheet:
-
JANS1N6140AUS/TR.pdf
- Description:
- BI-DIRECTIONAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,300
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
JANS1N6140AUS/TR from Microsemi is a military-qualified, voidless hermetically sealed bidirectional Transient Voltage Suppressor (TVS) in SQ-MELF glass package, rated for 1500 W peak pulse power (10/1000 µs), 6.2 V working standoff voltage (VWM), 7.79 V minimum breakdown voltage (VBR @ 150 mA), and 12.1 V clamping voltage (VC @ 124 A). It serves as primary surge protection in high-reliability avionics power interfaces.
For engineers reviewing the JANS1N6140AUS/TR datasheet, JANS1N6140AUS/TR pinout, JANS1N6140AUS/TR application, or JANS1N6140AUS/TR equivalent, key selection criteria include its MIL-PRF-19500/516 JANS qualification, bidirectional operation, 124 A peak pulse current capability, -55°C to +175°C operating junction temperature range, and radiation-hardened hard-glass construction.
Technical Context
This device operates as a bidirectional avalanche diode with no polarity marking, delivering symmetrical clamping in both forward and reverse directions. Its Category 1 metallurgical bonds and voidless hermetic seal ensure survivability under extreme thermal cycling and mechanical shock per MIL-STD-883.
Designed for transient suppression in DC power rails and signal lines, it meets IEC61000-4-2 (ESD), IEC61000-4-4 (EFT), and select IEC61000-4-5 (lightning-induced surge) immunity requirements. The 5.0 °C/W junction-to-end-cap thermal resistance enables effective heat dissipation in constrained board layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.2 V - Maximum continuous DC or repetitive peak voltage the device blocks without conduction. |
| VBR min | 7.79 V @ 150 mA - Minimum voltage at which avalanche breakdown begins; defines lower limit of functional clamping threshold. |
| VC | 12.1 V @ 124 A - Clamped voltage during 10/1000 µs surge; determines maximum stress imposed on protected downstream circuitry. |
| PPP | 1500 W - Peak impulse power handling for standard 10/1000 µs waveform; enables robust protection against lightning-induced transients. |
| IPP | 124 A - Peak surge current the device safely conducts while maintaining VC ≤ 12.1 V; sets design margin for worst-case surge events. |
| TJ/TSTG | -55°C to +175°C - Full military-grade junction and storage temperature range; supports operation in jet engine bays and space-qualified electronics. |
| RθJEC | 5.0 °C/W - Thermal resistance from junction to end cap; allows direct thermal coupling to heatsink or chassis for sustained surge duty cycles. |
Pinout & Package
Package: SQ-MELF (Square-End-Cap Metal Electrode Leadless Face), hermetically sealed voidless hard glass case with tungsten slugs; terminals are tin/lead plated copper; no polarity marking due to bidirectional symmetry.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction | Either end functions identically as cathode or anode depending on transient polarity; no orientation required during placement. |
| End Cap (both ends) | Current-carrying terminal & thermal path | Directly contacts PCB pad or heatsink; primary route for surge current conduction and junction heat dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional TVS architecture | Enables single-device protection of AC-coupled or floating DC lines without polarity constraints or external diode pairing. |
| Category 1 metallurgical bonds | Guarantees bond integrity under >1000 thermal cycles (-55°C/+175°C), eliminating failure modes common in wire-bonded commercial TVS devices. |
| Voidless hermetic glass seal | Prevents moisture ingress and internal corrosion over 20+ year field life in humid, salt-laden, or vacuum environments. |
| JANS qualification per MIL-PRF-19500/516 | Validates screening, testing, and traceability for mission-critical systems including flight control, radar, and satellite power subsystems. |
| Radiation hardness (MicroNote 050) | Withstands total ionizing dose (TID) ≥ 100 krad(Si) without parameter shift, enabling use in low-earth orbit and nuclear instrumentation. |
Applications
| Aerospace Power Distribution | Rad-Hard Sensor Interface |
|---|---|
Use Scenario: Protection of 28 V DC bus inputs in satellite power conditioning units exposed to ESD and secondary lightning surges. IC Role / Device Role / Timing Role: Primary bidirectional clamping element placed directly at connector entry point before DC-DC converter input stage. Use Value: Limits transient voltage to ≤12.1 V during 124 A surges, preventing latch-up or gate oxide rupture in upstream MOSFETs and controllers. |
Use Scenario: Shielding analog front-ends of radiation-tolerant temperature and pressure sensors in nuclear reactor monitoring systems. IC Role / Device Role / Timing Role: Low-leakage (<100 µA @ 6.2 V) transient clamp on sensor excitation lines and output signal paths. Use Value: Maintains signal integrity during EFT bursts (IEC61000-4-4) while surviving cumulative TID exposure without parameter drift. |
| Military Vehicle Data Bus | High-Reliability Test Equipment |
Use Scenario: Surge suppression on MIL-STD-1553B data bus stubs in armored vehicle command-and-control modules. IC Role / Device Role / Timing Role: Bidirectional shunt protector across differential pair, referenced to chassis ground via end-cap thermal pads. Use Value: Clamps common-mode transients to <12.1 V within 1 ns response time, preserving bit error rate below 10−12 under repeated 1500 W impulses. |
Use Scenario: Input-stage protection in automated test equipment (ATE) power supply modules used for burn-in of aerospace ASICs. IC Role / Device Role / Timing Role: Front-line surge absorber on programmable DC output rails, operating continuously at 150°C end-cap temperature. Use Value: Sustains 5.0 W off-state power at TEC = 150°C with linear derating to zero at 175°C, enabling stable long-duration test cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N6140AUS | Lower reliability screening level (JANTXV vs. JANS); same electrical specs and package. | Approved for non-flight-critical subsystems where full space-level qualification is not mandated. | Select when cost sensitivity outweighs need for full JANS radiation and burn-in testing. |
| 1N6140AUS (commercial) | No MIL-PRF-19500 qualification; RoHS-compliant matte-tin plating available; identical VWM, VBR, VC, PPP. | Suitable for ground-based industrial controls and telecom infrastructure with less stringent environmental requirements. | Choose for volume production where extended temperature range and radiation tolerance are unnecessary. |
Compared with JANTXV1N6140AUS and 1N6140AUS, JANS1N6140AUS/TR provides verified radiation hardness, full JANS-level screening (including lot acceptance tests per MIL-STD-750), and guaranteed performance at 175°C junction temperature-critical for launch vehicle avionics and deep-space missions.
Availability
JANS1N6140AUS/TR is available at Aetrix Electronics and suitable for aerospace power distribution, rad-hard sensor interface, military vehicle data bus, and high-reliability test equipment requiring stable component supply across extended product lifecycles.
Supply support for JANS1N6140AUS/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, with emphasis on radiation-hardened, high-temperature, and ultra-long-lifecycle components.
The JANS1N6140AUS/TR belongs to Microsemi's military-qualified TVS diode family engineered specifically for survivability in extreme environments-supporting MIL-STD-461, MIL-STD-704, and DO-160 compliance in safety-critical platforms.
FAQ
What is the clamping voltage of JANS1N6140AUS/TR under a 10/1000 µs surge?
The JANS1N6140AUS/TR has a maximum clamping voltage (VC) of 12.1 V when subjected to its rated peak pulse current of 124 A using the standard 10/1000 µs waveform. This value is measured per MIL-STD-202 method 310 and is guaranteed across the full -55°C to +175°C junction temperature range. The JANS1N6140AUS/TR maintains this clamping performance without degradation after repeated surge events when operated within thermal limits.
Is JANS1N6140AUS/TR compatible with lead-free reflow soldering processes?
JANS1N6140AUS/TR is qualified for solder reflow at 260°C for 10 seconds per MIL-STD-202 method 210, making it compatible with standard lead-free reflow profiles. However, its terminations are tin/lead plated-not RoHS-compliant matte tin-so it does not meet exemption-free lead-free requirements. For RoHS-compliant alternatives, the commercial 1N6140AUS variant is available with matte-tin plating, though without JANS qualification.
Does JANS1N6140AUS/TR require polarity-aware PCB layout?
No, JANS1N6140AUS/TR is a bidirectional TVS diode with symmetrical avalanche characteristics and no polarity marking. Either end may be connected to either side of the protected line, simplifying PCB layout and eliminating risk of reverse installation. This symmetry is inherent to its hard-glass SQ-MELF construction and Category 1 metallurgical bond structure, and is verified across all JANS screening lots.
What is the maximum steady-state power dissipation of JANS1N6140AUS/TR at 150°C end-cap temperature?
JANS1N6140AUS/TR is rated for 5.0 W of off-state power dissipation at an end-cap temperature (TEC) of 150°C, with linear derating to zero at 175°C per Note 1 in the datasheet. This rating assumes proper thermal coupling to the PCB or heatsink via both end caps and accounts for ambient conditions where thermal resistance from mounting point to ambient is controlled to prevent exceeding TJ(MAX) = 175°C.
How does JANS1N6140AUS/TR differ from the non-A suffix version (e.g., JANS1N6140US)?
JANS1N6140AUS/TR features tighter electrical tolerances than JANS1N6140US: its clamping voltage (VC) is 5% lower, minimum breakdown voltage (VBR) is 5% higher, and peak pulse current (IPP) is 5% higher at the same VC. These improvements result from enhanced process control during wafer fabrication and are documented in the nomenclature section of T4-LDS-0278-1 Rev. 2. The "A" suffix is mandatory for applications requiring guaranteed worst-case clamping performance.
JANS1N6140AUS/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- SQ-MELF, C
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 6.2V
- Voltage - Breakdown (Min):
- 7.79V
- Voltage - Clamping (Max) @ Ipp:
- 12.1V
- Current - Peak Pulse (10/1000µs):
- 124A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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:
- C, SQ-MELF
JANS1N6140AUS/TR FAQ
1.How can I place an order for JANS1N6140AUS/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N6140AUS/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 JANS1N6140AUS/TR reliable?
The price and inventory of JANS1N6140AUS/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANS1N6140AUS/TR is usually 5 days.
3.What payment methods are accepted for JANS1N6140AUS/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N6140AUS/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N6140AUS/TR?
JANS1N6140AUS/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N6140AUS/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 JANS1N6140AUS/TR?
For technical support, including JANS1N6140AUS/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N6140AUS/TR requirements.
6.How does Aetrix verify that JANS1N6140AUS/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N6140AUS/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 JANS1N6140AUS/TR meets industry standards.
7.What is the process for return or replacement of JANS1N6140AUS/TR?
All JANS1N6140AUS/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N6140AUS/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 JANS1N6140AUS/TR part is unused and in its original packaging.
Return procedure for JANS1N6140AUS/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANS1N6140AUS/TR Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
