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Microchip Technology JANS1N6154US/TR
- Part No.:
- JANS1N6154US/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- SQ-MELF, C
- Datasheet:
-
JANS1N6154US/TR.pdf
- Description:
- BI-DIRECTIONAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,331
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Product details
Overview
JANS1N6154US/TR from Microsemi is a military-qualified, voidless hermetically sealed bidirectional Transient Voltage Suppressor (TVS) in SQ-MELF package, rated for 1500 W peak pulse power (10/1000 µs), 25.1 V working standoff voltage (VWM), and 45.7 V clamping voltage (VC) at 32.8 A peak pulse current - deployed in avionics power rail protection and MIL-STD-461E transient suppression.
For engineers reviewing the JANS1N6154US/TR datasheet, JANS1N6154US/TR pinout, JANS1N6154US/TR application, or JANS1N6154US/TR equivalent, key selection criteria include its JANS-level qualification per MIL-PRF-19500/516, Category 1 metallurgical bonds, -55°C to +175°C operating junction temperature, RoHS-compliant tin/lead termination (e3), and bidirectional ESD/EFT/IEC61000-4-5 secondary lightning protection capability.
Technical Context
This device operates as a bidirectional voltage-clamping TVS diode with no polarity marking, relying on symmetrical avalanche breakdown in both directions to suppress transients above VWM = 25.1 V while maintaining <5 µA standby current. Its hard-glass hermetic seal and tungsten slug construction ensure zero internal voids and radiation hardness per MicroNote 050.
It delivers 1500 W peak pulse power under standardized 10/1000 µs waveform conditions, with thermal resistance RθJEC = 5.0 °C/W enabling stable operation up to TEC = 175 °C. The 0.095 %/°C temperature coefficient of breakdown voltage (αVBR) ensures predictable VBR = 31.4 V @ IBR = 40 mA across temperature extremes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 25.1 V - Maximum continuous DC or repetitive peak reverse voltage before conduction begins |
| VC @ IPP | 45.7 V at 32.8 A - Clamped voltage during 10/1000 µs surge, limiting downstream stress |
| PPP | 1500 W - Peak pulse power handling for transient suppression without failure |
| TJ/TSTG | -55°C to +175°C - Full military-grade junction/storage temperature range for space and defense use |
| RθJEC | 5.0 °C/W - Junction-to-end-cap thermal resistance enabling high-power dissipation in compact SQ-MELF |
| αVBR | 0.095 %/°C - Predictable VBR drift over temperature, critical for precision clamping margins |
| ID @ VWM | 5 µA - Ultra-low leakage at rated standoff, minimizing standby power loss in battery systems |
Pinout & Package
SQ-MELF (C-package) surface-mount glass body with square-end-cap terminals; hermetically sealed voidless hard glass case with tungsten slugs; tin/lead-plated copper terminations; no polarity marking; weight ≈ 1100 mg.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (Bidirectional) | Reversible avalanche junction | No designated anode/cathode - symmetric conduction enables identical clamping in either polarity |
| End Cap (Both Ends) | Thermal and electrical interface | Direct thermal path to PCB pads; dual-end-cap structure supports 5.0 °C/W RθJEC |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC lines or ungrounded DC rails without polarity concerns |
| Category 1 metallurgical bonds | Guarantees bond integrity under mechanical shock, vibration, and thermal cycling per MIL-PRF-19500 |
| Voidless hermetic seal | Eliminates moisture ingress and internal corrosion risks in long-life aerospace deployments |
| JANS qualification | Fully tested and certified to MIL-PRF-19500/516 Level JANS - highest reliability tier for spaceflight systems |
| IEC61000-4-2/4-4/4-5 compliance | Validated ESD (±15 kV air), EFT (40 A), and lightning-induced surge (up to select levels) immunity |
Applications
| Aerospace Power Distribution | Military Vehicle Data Buses |
|---|---|
Use Scenario: Protection of 28 V DC primary bus in satellite power conditioning units against load dump and EMP-induced transients. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed directly across input rails upstream of DC/DC converters. Use Value: Limits transient excursions to ≤45.7 V during 1500 W surges, preserving downstream FPGAs and ADCs rated for 36 V absolute max. | Use Scenario: Surge suppression on RS-485 data lines in armored vehicle C4I systems exposed to ignition noise and ESD. IC Role / Device Role / Timing Role: Line-to-line and line-to-ground TVS pair protecting differential signaling nodes. Use Value: Withstands >30 kV ESD per IEC61000-4-2 and clamps fast-rising edges within 1 ns, preventing receiver latch-up. |
| Avionics Sensor Interfaces | Nuclear Command & Control Systems |
Use Scenario: Shielding analog sensor inputs (e.g., pressure, temperature) in flight control computers from induced transients. IC Role / Device Role / Timing Role: Low-leakage (5 µA) standoff device placed at connector entry point before signal conditioning amplifiers. Use Value: Maintains signal integrity with sub-µA bias error while suppressing 10/1000 µs spikes up to 1500 W without degradation. | Use Scenario: Hardened power entry protection in ground-based nuclear command shelters subject to HEMP events. IC Role / Device Role / Timing Role: Primary front-end TVS in multi-stage protection network, coordinated with gas discharge tubes and filters. Use Value: Radiation-hardened construction (per MicroNote 050) and JANS qualification ensure operational continuity after total ionizing dose exposure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N6154US | Same VWM, VC, PPP, and package; qualified to JANTXV level (lower screening rigor than JANS) | Approved for airborne but non-spaceflight platforms where full JANS radiation testing not required | Select when cost sensitivity outweighs need for space-qualified radiation hardness and extended lifetime validation |
| 1N6154AUS | Commercial-grade version; same electrical specs but no MIL-PRF-19500 qualification or radiation hardening | Limited to industrial or test equipment where environmental robustness is secondary to cost | Choose only for prototyping or non-mission-critical systems lacking MIL-spec requirements |
Compared with JANTXV1N6154US and 1N6154AUS, the JANS1N6154US/TR provides uniquely validated radiation tolerance, Category 1 bond integrity, and full JANS-level screening - making it the sole option for geosynchronous satellite power subsystems requiring >15-year field life under proton flux exposure.
Availability
JANS1N6154US/TR is available at Aetrix Electronics and suitable for aerospace power distribution, military vehicle data buses, avionics sensor interfaces, and nuclear command & control systems requiring stable component supply with guaranteed traceability and long-term obsolescence management.
Supply support for JANS1N6154US/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) is a U.S.-based semiconductor company specializing in high-reliability analog and mixed-signal ICs, RF solutions, and radiation-hardened components for defense, aerospace, and industrial markets.
The 1N6138AUS–1N6173AUS family was engineered specifically for MIL-PRF-19500/516-compliant transient suppression in mission-critical platforms where failure is not an option - emphasizing hermeticity, surge robustness, and intrinsic radiation tolerance.
FAQ
What is the maximum clamping voltage of JANS1N6154US/TR under standard test conditions?
The JANS1N6154US/TR has a maximum clamping voltage (VC) of 45.7 V when subjected to a 10/1000 µs impulse waveform at 32.8 A peak pulse current (IPP). This value is measured per MIL-STD-883 and is guaranteed across the full -55°C to +175°C junction temperature range. The clamping performance remains stable due to the device's voidless hermetic construction and Category 1 metallurgical bonds, ensuring consistent protection in high-reliability deployments.
Is JANS1N6154US/TR compatible with lead-free reflow processes?
JANS1N6154US/TR uses tin/lead (SnPb) plating per standard specification and is rated for solder temperature up to 260°C for 10 seconds - compatible with SnPb reflow profiles. While RoHS-compliant matte-tin versions exist for commercial-grade variants (e.g., 1N6154AUS), the JANS1N6154US/TR itself is not RoHS-compliant and requires Pb-based assembly. For lead-free compatibility, consult Microchip's qualified alternatives or engineering waivers.
Does JANS1N6154US/TR have polarity markings for PCB layout?
No, JANS1N6154US/TR is a bidirectional TVS diode with no polarity marking on the SQ-MELF glass body. Its symmetrical internal structure allows mounting in either orientation without affecting clamping behavior. The absence of polarity simplifies automated placement and eliminates risk of reverse installation - a key advantage in high-density avionics layouts where board real estate and assembly yield are critical.
What is the standby leakage current of JANS1N6154US/TR at rated standoff voltage?
At its rated working standoff voltage (VWM) of 25.1 V and ambient temperature of 25°C, the JANS1N6154US/TR exhibits a maximum standby current (ID) of 5 µA. This ultra-low leakage preserves battery life in always-on military radios and reduces measurement error in precision sensor front-ends. Leakage remains below 100 µA even at 150°C junction temperature, supporting operation in engine bay or power converter environments.
How does JANS1N6154US/TR differ from commercial 1N6154AUS in terms of screening and reliability?
JANS1N6154US/TR undergoes full JANS-level screening per MIL-PRF-19500/516, including extended burn-in, radiation hardness assurance (RHA), and lot acceptance testing for spaceflight use. In contrast, 1N6154AUS is commercial-grade with no MIL-spec screening, no radiation testing, and relaxed environmental stress limits. The JANS variant also features voidless hermetic sealing and Category 1 metallurgical bonds - verified reliability elements absent in the commercial part.
JANS1N6154US/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):
- 25.1V
- Voltage - Breakdown (Min):
- 31.4V
- Voltage - Clamping (Max) @ Ipp:
- 45.7V
- Current - Peak Pulse (10/1000µs):
- 32.8A
- 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
JANS1N6154US/TR FAQ
1.How can I place an order for JANS1N6154US/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N6154US/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 JANS1N6154US/TR reliable?
The price and inventory of JANS1N6154US/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANS1N6154US/TR is usually 5 days.
3.What payment methods are accepted for JANS1N6154US/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N6154US/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N6154US/TR?
JANS1N6154US/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N6154US/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 JANS1N6154US/TR?
For technical support, including JANS1N6154US/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N6154US/TR requirements.
6.How does Aetrix verify that JANS1N6154US/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N6154US/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 JANS1N6154US/TR meets industry standards.
7.What is the process for return or replacement of JANS1N6154US/TR?
All JANS1N6154US/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N6154US/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 JANS1N6154US/TR part is unused and in its original packaging.
Return procedure for JANS1N6154US/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANS1N6154US/TR Tags
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