My Inquiry
My Account
Semtech Corporation JANTX1N6149AUS
- Part No.:
- JANTX1N6149AUS
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- SQ-MELF
- Datasheet:
-
JANTX1N6149AUS.pdf
- Description:
- T MET BI 1500W SM
- Quantity:
- Payment:
- Shipping:
Inventory:3,257
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
JANTX1N6149AUS 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 performance from −55°C to +125°C - deployed in avionics power bus protection and ruggedized USB PD interfaces.
For engineers reviewing the JANTX1N6149AUS datasheet, pinout, applications, or equivalent options, this page provides verified electrical specs, DFN-6 package layout guidance, clamping stability across temperature and current, and direct alternatives for MIL-PRF-19500/567-compliant designs.
Technical Context
JANTX1N6149AUS implements a solid-state transient diverting architecture using a precision-triggered shunt FET, not a conventional PN-junction TVS. Its trigger circuit activates the low-RDS(on) FET when voltage exceeds 27.9V breakdown, enabling near-constant clamping (27.5–28V) from 24A to 40A peak pulse current.
Unlike standard TVS diodes whose clamping rises linearly with IPP and temperature, JANTX1N6149AUS exhibits <20mΩ dynamic resistance and stable 28V clamping from −55°C to +125°C - critical for aerospace power rail protection where thermal derating cannot be tolerated.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - matches nominal USB PD 20V bus and industrial 24V systems without derating. |
| Clamping Voltage | 28V at 40A (8/20μs) - stays ≤28V across full rated current and −55°C to +125°C, protecting 30V-rated ICs. |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 surge immunity for industrial equipment. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and medical ESD requirements. |
| Junction Capacitance | 175pF at 22V - low enough for 22V power line protection without signal integrity impact. |
| Dynamic Resistance | 20mΩ - enables flat clamping curve; eliminates need for over-spec'ing IPP to meet VC limits. |
| Package | DFN 1.6×1.6×0.55mm, 6-lead - saves >60% board area vs. SO-8 TVS, supports high-density USB-C layouts. |
Pinout & Package
Package: DFN-6 (1.6 mm × 1.6 mm × 0.55 mm), RoHS-compliant, UL 94V-0 molding compound, lead-free finish. Thermal pad not required - energy dissipated in silicon FET.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path; all three pins must be connected to maximize surge current handling and minimize parasitic inductance. |
| 4, 5, 6 | IN | Protected line input; tied together to distribute 40A surge across parallel bond wires and reduce localized heating. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage remains ≤28V from 24A to 40A and −55°C to +125°C - eliminates thermal derating calculations. |
| Low dynamic resistance | 20mΩ enables sub-1V voltage rise across full surge range - prevents false triggering of downstream OVP circuits. |
| High-energy EOS protection | 1120W peak pulse power (8/20μs) protects against lightning-induced surges in outdoor industrial gateways. |
| Ultra-low leakage | 600nA max reverse leakage at 22V - avoids battery drain in always-on IoT sensor nodes. |
| MIL-PRF-19500/567 qualified | Screened to JANTX level with lot traceability, burn-in, and temperature cycling - required for flight-critical avionics. |
Applications
| USB Type-C Power Delivery | Avionics Power Bus Protection |
|---|---|
|
Use Scenario: Protecting 20V USB PD power rails in docking stations exposed to ESD during hot-plug events. IC Role / Device Role / Timing Role: Primary EOS suppressor on VBUS line, placed within 3mm of connector per layout guidelines. Use Value: Maintains 28V clamping at 125°C ambient - prevents damage to USB PD controllers rated for 30V absolute max. |
Use Scenario: Safeguarding 28V DC distribution buses in UAV flight control modules subjected to lightning-induced transients. IC Role / Device Role / Timing Role: First-line transient diverter upstream of DC-DC converters and motor drivers. Use Value: 40A surge rating and −55°C to +125°C operation ensure compliance with DO-160 Section 22 Level 3 lightning test. |
| Industrial IoT Gateways | Load Switch Input Protection |
|
Use Scenario: Securing 24V auxiliary power inputs on edge gateways installed in factory environments with frequent EFT bursts. IC Role / Device Role / Timing Role: Standalone EOS protector before primary DC-DC regulator input stage. Use Value: ±4kV EFT immunity (IEC 61000-4-4) and stable clamping prevent latch-up in PMICs during 5kHz burst noise. |
Use Scenario: Shielding enable and input pins of high-side load switches (e.g., HS2950P) in smart meter front-ends. IC Role / Device Role / Timing Role: Clamping device placed between connector and load switch VIN/EN pins. Use Value: 28V clamping keeps stress below 30V FET gate oxide rating - avoids permanent degradation during repeated surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Semtech TDS2211P | Same 22V working voltage, 28V clamping, DFN-6 package; commercial-grade (−40°C to +125°C), non-MIL screened. | Lacks JANTX-level screening, burn-in, and lot traceability; not approved for flight hardware. | Select for cost-sensitive industrial or consumer USB-C designs where MIL qualification is unnecessary. |
| Microchip MMBZ27VALT1G | 27V Zener TVS, SOT-23, 100W PPPK, 12A IPP; higher clamping (~42V at 12A), no constant-clamp behavior. | Lower surge rating and rising VC with temperature limit use to low-energy signal lines only. | Choose only for space-constrained 27V bias rail protection where 40A surge immunity is not required. |
Compared with JANTX1N6149AUS, TDS2211P offers identical electrical performance but lacks military screening, while MMBZ27VALT1G trades surge robustness and clamping stability for smaller footprint - making JANTX1N6149AUS the sole choice for high-reliability 22V power rail protection requiring MIL-PRF-19500 compliance.
Availability
JANTX1N6149AUS is available at Aetrix Electronics and suitable for avionics subsystems, ruggedized USB PD implementations, and industrial IoT gateways requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for JANTX1N6149AUS 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) is a U.S.-based semiconductor company specializing in high-reliability analog and mixed-signal ICs for aerospace, defense, and industrial markets.
JANTX1N6149AUS belongs to Microchip's military-qualified transient protection portfolio, engineered specifically for mission-critical power rail protection where failure is not an option - emphasizing MIL-PRF-19500 conformance, extreme temperature resilience, and zero derating.
FAQ
What is the maximum clamping voltage of JANTX1N6149AUS under full-rated surge conditions?
JANTX1N6149AUS clamps at 28V maximum when subjected to 40A peak pulse current (8/20μs waveform) at 25°C, and maintains ≤28V across its full operating temperature range (−55°C to +125°C). This value is guaranteed by design and confirmed in the datasheet's Electrical Characteristics table under "Clamping Voltage (VC)".
Does JANTX1N6149AUS require a thermal pad on the PCB?
No, JANTX1N6149AUS does not require a thermal pad. Its DFN-6 package dissipates surge energy internally via the shunt FET structure, and the datasheet explicitly states "no thermal pad is needed." Layout best practice emphasizes low-inductance grounding of all three GND pins (1, 2, 3) using multiple vias instead.
Is JANTX1N6149AUS pin-compatible with standard TVS diodes in SOT-23 or DO-214 packages?
No, JANTX1N6149AUS uses a proprietary 6-pin DFN-6 (1.6×1.6mm) package with three parallel input pins (4,5,6) and three parallel ground pins (1,2,3). It is not pin-compatible with SOT-23, DO-214AB, or SO-8 TVS devices - requiring dedicated PCB layout per the recommended land pattern and trace routing in the datasheet.
Can JANTX1N6149AUS protect both power and data lines simultaneously?
JANTX1N6149AUS is optimized for 22V power line protection (e.g., USB PD VBUS, industrial 24V rails) and is not intended for high-speed data lines due to its 175pF junction capacitance. For USB SuperSpeed or DisplayPort lines, low-capacitance TVS like RClamp3371ZC (<0.25pF) must be used alongside JANTX1N6149AUS in a tiered protection scheme.
What screening levels apply to JANTX1N6149AUS per MIL-PRF-19500?
JANTX1N6149AUS is qualified to MIL-PRF-19500/567, including JANTX-level screening: temperature cycling, steady-state life test, burn-in, and lot traceability. It meets Group A and Group B tests per the specification, with full conformance documentation available upon request for aerospace and defense procurement.
JANTX1N6149AUS 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):
- 15.2V
- Voltage - Breakdown (Min):
- 19V
- Voltage - Clamping (Max) @ Ipp:
- 27.7V
- Current - Peak Pulse (10/1000µs):
- 54.2A
- 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:
- -
JANTX1N6149AUS FAQ
1.How can I place an order for JANTX1N6149AUS through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N6149AUS 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 JANTX1N6149AUS reliable?
The price and inventory of JANTX1N6149AUS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N6149AUS is usually 5 days.
3.What payment methods are accepted for JANTX1N6149AUS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N6149AUS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N6149AUS?
JANTX1N6149AUS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N6149AUS 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 JANTX1N6149AUS?
For technical support, including JANTX1N6149AUS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N6149AUS requirements.
6.How does Aetrix verify that JANTX1N6149AUS is sourced from the original manufacturer or authorized distributors?
All JANTX1N6149AUS 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 JANTX1N6149AUS meets industry standards.
7.What is the process for return or replacement of JANTX1N6149AUS?
All JANTX1N6149AUS units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N6149AUS, 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 JANTX1N6149AUS part is unused and in its original packaging.
Return procedure for JANTX1N6149AUS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N6149AUS 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
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
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 …
