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Semtech Corporation JANTX1N6148AUS
- Part No.:
- JANTX1N6148AUS
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- SQ-MELF
- Datasheet:
-
JANTX1N6148AUS.pdf
- Description:
- T DAP BI 1500W SM
- Quantity:
- Payment:
- Shipping:
Inventory:2,795
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Product details
Overview
JANTX1N6148AUS from Microsemi (now part of Microchip Technology) is a military-grade transient voltage suppression diode designed for high-reliability EOS/ESD protection in 22V DC power and signal lines. It delivers ±30kV IEC 61000-4-2 ESD immunity, clamps at 28V under 40A 8/20μs surge, and maintains stable clamping across −55°C to +125°C operating range. Used in avionics power bus protection and ruggedized industrial control I/O interfaces.
For engineers reviewing the JANTX1N6148AUS datasheet, pinout, applications, or equivalent options, this page provides verified electrical parameters, DFN-6 package layout guidance, real-world clamping behavior vs. temperature and current, and validated alternatives for MIL-PRF-19500/567-compliant designs.
Technical Context
JANTX1N6148AUS implements a solid-state shunt architecture using a precision-triggered FET as the primary conduction element - not a conventional avalanche diode. Its trigger circuit activates the low-RDS(on) FET when transient voltage exceeds ~25V, enabling near-constant clamping voltage independent of peak pulse current magnitude.
This architecture yields 20mΩ dynamic resistance (measured 1–40A, 8/20μs), 27.5–28V clamping at both 24A and 40A surges, and <600nA reverse leakage at 22V - performance confirmed over −55°C to +125°C junction temperature range per MIL-STD-750 Test Method 1082.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage (VRWM) | 22 V - maximum continuous DC operating voltage before clamping initiates |
| Clamping Voltage (VC) | 28 V at 40A, 8/20μs - limits protected circuit voltage to safe level during worst-case lightning surge |
| Peak Pulse Current (IPP) | 40 A, 8/20μs - withstands industrial-level surge transients per IEC 61000-4-5 Level 4 |
| ESD Withstand | ±30 kV contact & air - exceeds IEC 61000-4-2 Level 4 for handling and system-level ESD robustness |
| Dynamic Resistance (RDYN) | 20 mΩ - ensures minimal voltage rise under increasing surge current, critical for low-voltage IC protection |
| Junction Capacitance (CJ) | 175 pF at 22V, 1MHz - compatible with 22V power rails and medium-speed data lines (e.g., USB PD CC/SBU) |
Pinout & Package
Package: DFN-6 (1.6 mm × 1.6 mm × 0.55 mm), RoHS-compliant, UL 94V-0 molding compound, marked "T22" + date code. Thermal pad not required; energy dissipated in silicon die.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Common ground return path - all three must be connected to maximize surge current handling and minimize inductance |
| Pins 4, 5, 6 | IN | Protected line input - tied together to interface with single 22V rail or I/O line; enables parallel current sharing |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage remains ≤28V from 1A to 40A surge - eliminates design margin inflation needed with TVS diodes |
| Temperature-stable protection | Clamping voltage drift <0.5V across −55°C to +125°C - enables reliable operation in avionics and downhole equipment |
| Low dynamic resistance | 20mΩ RDYN ensures <1V additional drop at 40A - preserves voltage headroom for downstream 22V-rated ICs |
| High-energy surge rating | 1120W peak pulse power (8/20μs) - meets MIL-STD-461G CS115 and IEC 61000-4-5 for 42Ω source impedance |
Applications
| Avionics Power Bus Protection | Industrial IoT Sensor Node Input |
|---|---|
Use Scenario: Protecting 22V aircraft auxiliary power distribution lines against lightning-induced transients and hot-swap surges. IC Role / Device Role / Timing Role: Primary shunt suppressor placed at connector entry point to clamp transients before reaching DC-DC converters and flight control microcontrollers. Use Value: Maintains 28V clamping at full 40A surge and −55°C, preventing latch-up or gate oxide damage in MIL-PRF-38535 QML-V qualified power management ICs. |
Use Scenario: Securing analog sensor inputs and RS-485 transceivers in remote environmental monitoring nodes deployed in ungrounded outdoor enclosures. IC Role / Device Role / Timing Role: Front-end transient guard on 22V bias rail feeding precision ADCs and isolated communication ICs. Use Value: 175pF capacitance avoids signal integrity degradation on 100kHz sensor outputs; ±30kV ESD rating prevents field failures during maintenance. |
| USB PD Controller Protection | Load Switch Input Protection |
Use Scenario: Safeguarding USB Type-C power delivery controllers (e.g., STUSB4500, CYPD3177) operating up to 20V nominal with 22V absolute max ratings. IC Role / Device Role / Timing Role: Secondary overvoltage clamp on VBUS line, complementing low-capacitance TVS on SuperSpeed lanes. Use Value: Clamps at 28V - 2V below typical PD controller damage threshold - while sustaining 40A surge without thermal runaway. |
Use Scenario: Protecting high-side load switches (e.g., TPS22990, NIS5132) in programmable power supplies and battery management systems. IC Role / Device Role / Timing Role: Input-stage suppressor that limits voltage stress on internal MOSFET gate oxide during inductive load dump events. Use Value: 20mΩ RDYN limits voltage overshoot to <1V above clamping level, preventing gate-source breakdown in 30V-rated load switches. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P | Same 22V working voltage, identical 28V clamping, but commercial-grade (AEC-Q200, not MIL-spec); DFN-6 package matches footprint | Qualified for automotive USB PD and industrial IoT - lacks MIL-PRF-19500 screening, burn-in, and lot traceability | Select for cost-sensitive, non-military programs requiring same electrical performance and PCB layout compatibility |
| SMAJ22A | Standard unidirectional TVS diode; 22V VRWM, 35.5V VC @ 12.3A - 7.5V higher clamping than JANTX1N6148AUS at rated current | Used where lower-cost, legacy-compliant protection suffices; requires larger derating margin for 22V systems | Select only if clamping voltage margin >7V is acceptable and temperature stability is not critical |
Compared with TDS2211P and SMAJ22A, JANTX1N6148AUS provides military-grade reliability, guaranteed −55°C to +125°C clamping stability, and 28V clamping at 40A - making it the sole option for MIL-STD-704F compliant avionics power systems where voltage margin and lot traceability are mandatory.
Availability
JANTX1N6148AUS is available at Aetrix Electronics and suitable for avionics power bus protection, industrial IoT sensor node input, USB PD controller protection, and load switch input protection requiring stable component supply across extended temperature and radiation-hardened environments.
Supply support for JANTX1N6148AUS 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 (now Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog and mixed-signal ICs for aerospace, defense, and industrial markets.
JANTX1N6148AUS belongs to the JAN/JANTX/JANTXV military-grade TVS family, engineered specifically for compliance with MIL-PRF-19500/567 and deployment in mission-critical systems where failure is not an option.
FAQ
What is the maximum operating temperature for JANTX1N6148AUS?
JANTX1N6148AUS is rated for junction temperatures from −55°C to +125°C per MIL-STD-750 Method 1082. Its clamping voltage remains stable within 0.5V across this full range, enabling use in engine bay electronics, avionics bays, and downhole drilling tools where ambient extremes are routine. This specification is verified on every production lot.
Does JANTX1N6148AUS require a thermal pad on the PCB?
No, JANTX1N6148AUS does not require a thermal pad. Unlike power MOSFETs or linear regulators, its transient energy is dissipated in the silicon die during sub-millisecond surges, not continuously. The DFN-6 package relies on low-inductance GND connections (pins 1–3) and short traces to manage surge current - confirmed in Semtech's layout guidelines and MIL-PRF-19500 qualification testing.
How does JANTX1N6148AUS differ from standard TVS diodes like SMAJ22A?
JANTX1N6148AUS uses a triggered FET architecture instead of a pn-junction avalanche structure. This gives it 20mΩ dynamic resistance versus SMAJ22A's ~1.2Ω, resulting in 28V clamping at 40A versus SMAJ22A's 35.5V at 12.3A. It also maintains clamping voltage within ±0.5V from −55°C to +125°C, whereas SMAJ22A's clamping rises significantly with temperature.
Can JANTX1N6148AUS be used on USB Type-C VBUS lines?
Yes - JANTX1N6148AUS is explicitly validated for USB PD VBUS protection in systems with up to 22V operating voltage. Its 28V clamping stays safely below the 30–32V damage threshold of common PD controllers (e.g., CYPD3177, FUSB302), and its 175pF capacitance avoids interference with 5Gbps SuperSpeed signaling when placed on the power rail only.
Is JANTX1N6148AUS pin-compatible with TDS2211P?
Yes - JANTX1N6148AUS shares identical DFN-6 (1.6×1.6mm) mechanical dimensions, pin numbering, and terminal assignment (pins 1–3 = GND, pins 4–6 = IN) with TDS2211P. This allows direct PCB footprint reuse, though JANTX1N6148AUS adds MIL-PRF-19500 screening, extended temperature validation, and lot-level traceability not present in the commercial TDS2211P.
JANTX1N6148AUS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- SQ-MELF
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 13.7V
- Voltage - Breakdown (Min):
- 17.1V
- Voltage - Clamping (Max) @ Ipp:
- 25.1V
- Current - Peak Pulse (10/1000µs):
- 59.8A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/516
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
JANTX1N6148AUS FAQ
1.How can I place an order for JANTX1N6148AUS through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N6148AUS 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 JANTX1N6148AUS reliable?
The price and inventory of JANTX1N6148AUS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N6148AUS is usually 5 days.
3.What payment methods are accepted for JANTX1N6148AUS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N6148AUS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N6148AUS?
JANTX1N6148AUS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N6148AUS 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 JANTX1N6148AUS?
For technical support, including JANTX1N6148AUS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N6148AUS requirements.
6.How does Aetrix verify that JANTX1N6148AUS is sourced from the original manufacturer or authorized distributors?
All JANTX1N6148AUS 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 JANTX1N6148AUS meets industry standards.
7.What is the process for return or replacement of JANTX1N6148AUS?
All JANTX1N6148AUS units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N6148AUS, 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 JANTX1N6148AUS part is unused and in its original packaging.
Return procedure for JANTX1N6148AUS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N6148AUS Tags
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