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Microchip Technology JANTX1N6156US/TR
- Part No.:
- JANTX1N6156US/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- SQ-MELF, C
- Datasheet:
-
JANTX1N6156US/TR.pdf
- Description:
- BI-DIRECTIONAL TVS
- Quantity:
- Payment:
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Product details
Overview
JANTX1N6156US/TR from Microsemi is a voidless hermetically sealed surface-mount bidirectional Transient Voltage Suppressor (TVS) qualified to MIL-PRF-19500/516 at JANTX reliability level, with 29.7 V working standoff voltage (VWM), 37.1 V minimum breakdown voltage (V(BR)), and 53.6 V clamping voltage (VC) at 28.0 A peak pulse current (IPP). It delivers 1500 W peak pulse power for 10/1000 µs transients and operates from –55 °C to +175 °C, used in avionics power rail protection.
For engineers reviewing the JANTX1N6156US/TR datasheet, JANTX1N6156US/TR pinout, JANTX1N6156US/TR application, or JANTX1N6156US/TR equivalent, key selection criteria include standoff voltage tolerance, clamping performance under MIL-STD-461/464 surge conditions, thermal resistance (5.0 °C/W junction-to-end cap), and compliance with IEC61000-4-2/4-4/4-5 for ESD, EFT, and lightning-induced surges.
Technical Context
This device implements a silicon avalanche diode structure in a hard-glass, voidless hermetic package with Category 1 internal metallurgical bonds, enabling high-reliability operation in radiation-hardened and thermally aggressive environments. Its bidirectional configuration provides symmetrical clamping without polarity marking and supports transient suppression on AC-coupled or floating signal/power lines.
The JANTX1N6156US/TR is rated for 1500 W peak pulse power at 25 °C using a 10/1000 µs waveform, with linear derating above 150 °C end-cap temperature to zero at 175 °C. Standby current is limited to 5 µA at VWM, and temperature coefficient of V(BR) is 0.095 %/°C - critical for stable clamping across military temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 29.7 V - maximum continuous DC or repetitive peak reverse voltage before conduction begins; sets operating margin below clamping threshold. |
| V(BR) min | 37.1 V @ 30 mA - guaranteed avalanche onset voltage; defines minimum overvoltage threshold for reliable triggering. |
| VC @ IPP | 53.6 V @ 28.0 A - clamped voltage during 10/1000 µs surge; determines maximum stress imposed on protected circuitry. |
| PPP | 1500 W - peak impulse power handling capability; enables robust protection against MIL-STD-1275B and DO-160 Section 22 induced transients. |
| TJ range | –55 °C to +175 °C - full military temperature range; validated for engine bay, radar, and space-qualified electronics. |
| RθJEC | 5.0 °C/W - junction-to-end-cap thermal resistance; allows direct heatsinking via PCB copper or chassis mounting for sustained surge duty. |
| ID @ VWM | 5 µA - leakage current at rated standoff; ensures minimal power loss and noise coupling in low-power sensor interfaces. |
Pinout & Package
Package: SQ-MELF (C-package variant), hermetically sealed voidless hard glass with tungsten slugs and tin/lead-plated copper terminals. Dimensions: BD = 0.183–0.202 in (4.65–5.13 mm), BL = 0.205–0.245 in (5.21–6.22 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (bidirectional) | Transient conduction path | No polarity marking; either terminal serves as anode or cathode depending on transient polarity - simplifies layout on differential or AC lines. |
| End Cap (both ends) | Thermal and mechanical interface | Direct thermal path to PCB copper or chassis; enables 5.0 °C/W RθJEC when mounted per MIL-STD-202 method 210. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional avalanche clamping | Enables single-device protection of AC signals, RS-485 buses, and ungrounded power rails without polarity concerns. |
| Category 1 metallurgical bonds | Guarantees bond integrity under thermal cycling (–55/+175 °C) and mechanical shock per MIL-STD-883, eliminating wire-bond failure modes. |
| Voidless hermetic glass seal | Prevents moisture ingress and corrosion in humid, salt-spray, or vacuum environments - essential for airborne and naval platforms. |
| MIL-PRF-19500/516 JANTX qualification | Validates screening, testing, and traceability per military requirements including burn-in, life test, and lot acceptance. |
Applications
| Aerospace Power Distribution | Avionics Signal Integrity |
|---|---|
Use Scenario: Protection of 28 VDC aircraft bus against load dump, alternator ripple, and lightning-induced surges per DO-160 Section 22. IC Role / Device Role / Timing Role: Primary transient clamp on main power feed to flight control computers and inertial navigation units. Use Value: Clamps to 53.6 V within nanoseconds, limiting downstream voltage stress to <60 V while surviving 1500 W pulses - preserving AS5653-compliant system uptime. | Use Scenario: Shielding ARINC 429 data receivers from ESD events and coupled transients on twin-ax cabling. IC Role / Device Role / Timing Role: Bidirectional line protector placed directly at connector entry point before receiver input stage. Use Value: Sub-100 ns response time and 5 µA leakage ensure no signal distortion or DC offset on ±10 V differential data lines. |
| Tactical Radio Front-End | Ground Vehicle Control Module |
Use Scenario: Surge suppression on RF power amplifier bias lines exposed to EMP and antenna switching transients. IC Role / Device Role / Timing Role: Standoff-clamp TVS in series with bias choke, shunting fast-rising common-mode spikes. Use Value: 0.095 %/°C V(BR) tempco maintains consistent clamping across –40/+85 °C ambient - critical for field-deployed SATCOM radios. | Use Scenario: Protecting CAN FD transceiver power pins in armored vehicle ECUs subjected to ISO 7637-2 Pulse 5a (load dump). IC Role / Device Role / Timing Role: Secondary overvoltage clamp after primary TVS, absorbing residual energy not diverted by upstream device. Use Value: 28.0 A IPP rating and 53.6 V VC ensure secondary clamping remains effective even after primary device degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N6156AUS | Commercial-grade version; same electrical specs but no MIL-PRF-19500/516 screening or JANTX-level traceability. | Lacks radiation hardness validation and extended temperature life test data; unsuitable for flight-critical systems. | Select only for non-mission-critical ground test equipment or commercial derivatives where cost outweighs qualification rigor. |
| JANTXV1N6156US/TR | Higher reliability level (JANTXV); includes additional burn-in, life test, and radiation hardness verification per MIL-PRF-19500/516. | Validated for space-qualified subsystems and nuclear-hardened platforms requiring >100 krad(Si) TID tolerance. | Choose when system-level radiation environment exceeds 50 krad(Si) or when extended mission lifetime (>15 years) is mandated. |
Compared with JANTX1N6156US/TR, the 1N6156AUS offers identical clamping performance at lower cost but lacks military screening, while JANTXV1N6156US/TR adds radiation hardness and extended life validation - making it suitable for deep-space or nuclear command systems where single-event effects must be mitigated.
Availability
JANTX1N6156US/TR is available at Aetrix Electronics and suitable for aerospace power distribution, avionics signal integrity, and tactical radio front-end designs requiring stable component supply under ITAR-controlled logistics and long-term obsolescence management.
Supply support for JANTX1N6156US/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-low-leakage devices.
The JANTX1N6156US/TR belongs to Microsemi's MIL-qualified TVS diode family engineered specifically for survivability in extreme electromagnetic environments - including lightning strike coupling, EMP, and nuclear transient events - with hermetic packaging and Category 1 bond integrity.
FAQ
What is the clamping voltage of JANTX1N6156US/TR at its rated peak pulse current?
The JANTX1N6156US/TR has a maximum clamping voltage (VC) of 53.6 V at 28.0 A peak pulse current (IPP) for a 10/1000 µs waveform. This value is measured per MIL-STD-750 Method 3013 and defines the upper voltage limit imposed on protected circuitry during surge events. The JANTX1N6156US/TR maintains this clamping performance across its full operating temperature range, with minimal drift due to its 0.095 %/°C V(BR) temperature coefficient.
Is JANTX1N6156US/TR suitable for bidirectional signal line protection?
Yes, JANTX1N6156US/TR is a bidirectional TVS diode with symmetrical avalanche characteristics - meaning either terminal functions as anode or cathode depending on transient polarity. This makes it ideal for protecting AC-coupled interfaces like RS-422, RS-485, ARINC 429, and Ethernet PHY lines without requiring polarity-aware placement. Its 5 µA standby current at 29.7 V VWM ensures negligible loading on sensitive differential receivers.
Does JANTX1N6156US/TR meet IEC61000-4-5 for lightning surge immunity?
Yes, JANTX1N6156US/TR provides protection against secondary effects of lightning per select levels in IEC61000-4-5, as confirmed in Microsemi's T4-LDS-0278-1 datasheet. Its 1500 W peak pulse power rating and 53.6 V clamping voltage enable compliance with Level 3 (2 kV line-earth, 1 kV line-line) and Level 4 (4 kV line-earth, 2 kV line-line) when implemented with appropriate PCB layout and series impedance. The JANTX1N6156US/TR is routinely deployed in DO-160 Section 22 Zone A/B/C installations.
What is the thermal resistance specification for JANTX1N6156US/TR?
JANTX1N6156US/TR has a junction-to-end-cap thermal resistance (RθJEC) of 5.0 °C/W, measured per MIL-STD-750 Method 1071. This low thermal resistance enables efficient heat transfer from the silicon die to the PCB copper or metal chassis through direct end-cap contact. When mounted per recommended pad layout with ≥100 mm² of 2-oz copper pour per end, the JANTX1N6156US/TR sustains repeated 1500 W surges without exceeding 175 °C junction temperature.
How does JANTX1N6156US/TR differ from commercial-grade 1N6156AUS?
JANTX1N6156US/TR differs from 1N6156AUS in reliability screening, traceability, and environmental validation: it undergoes full MIL-PRF-19500/516 JANTX-level testing including burn-in, life test, and lot acceptance, whereas 1N6156AUS is commercial-grade with no military screening. Both share identical electrical parameters (VWM = 29.7 V, VC = 53.6 V), but only JANTX1N6156US/TR carries full DSCC-certified traceability and radiation hardness documentation required for flight hardware.
JANTX1N6156US/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):
- 29.7V
- Voltage - Breakdown (Min):
- 37.1V
- Voltage - Clamping (Max) @ Ipp:
- 53.6V
- Current - Peak Pulse (10/1000µs):
- 28A
- 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
JANTX1N6156US/TR FAQ
1.How can I place an order for JANTX1N6156US/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N6156US/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 JANTX1N6156US/TR reliable?
The price and inventory of JANTX1N6156US/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N6156US/TR is usually 5 days.
3.What payment methods are accepted for JANTX1N6156US/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N6156US/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N6156US/TR?
JANTX1N6156US/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N6156US/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 JANTX1N6156US/TR?
For technical support, including JANTX1N6156US/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N6156US/TR requirements.
6.How does Aetrix verify that JANTX1N6156US/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N6156US/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 JANTX1N6156US/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N6156US/TR?
All JANTX1N6156US/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N6156US/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 JANTX1N6156US/TR part is unused and in its original packaging.
Return procedure for JANTX1N6156US/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N6156US/TR Tags
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