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Semtech Corporation JANS1N6144AUS
- Part No.:
- JANS1N6144AUS
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- SQ-MELF
- Datasheet:
-
JANS1N6144AUS.pdf
- Description:
- TVS BI 1500W SM 9.1V
- Quantity:
- Payment:
- Shipping:
Inventory:9,476
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Product details
Overview
JANS1N6144AUS from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS protection of 22V-rated power or I/O lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), 27.5–28V clamping voltage at 40A, and ultra-low 20mΩ dynamic resistance - deployed in USB PD, Type-C, and industrial load-switch input protection.
For engineers reviewing the JANS1N6144AUS datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, DFN-6 package layout guidance, temperature-stable clamping behavior, and real-world design context for EOS-critical 22V bus protection.
Technical Context
JANS1N6144AUS uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit that turns on the shunt path when transient voltage exceeds breakdown threshold. Unlike conventional TVS diodes, its clamping voltage remains nearly constant across 0–40A and −40°C to +125°C due to decreasing RDS(on) under surge conditions.
The device implements a three-terminal shunt architecture: pins 4–6 serve as the protected input node, pins 1–3 as ground return, and all six pins must be connected to achieve rated 40A surge capability and minimize parasitic inductance. Its 175pF junction capacitance at 22V is optimized for DC/low-speed bus protection-not high-speed data lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC operating voltage of protected line without leakage degradation. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs) - ensures downstream 22V-rated ICs (e.g., USB PD controllers) remain below damage threshold during worst-case surges. |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 industrial surge immunity with 2Ω source impedance. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD requirements without derating. |
| Dynamic Resistance | 20mΩ - enables flat clamping curve; reduces voltage rise per amp vs. TVS diodes (which exhibit linear VC = VBR + IPP × RDYN). |
| Junction Capacitance | 175pF at 22V, 1MHz - suitable for power/low-speed signal lines; avoids signal integrity issues seen with >1nF TVS devices. |
Pinout & Package
Package: DFN 1.6mm × 1.6mm × 0.55mm, 6-lead, Pb-free, RoHS-compliant, UL 94V-0 molding compound. Thermal pad not required - energy dissipated in silicon FET channel.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | Ground (GND) | Low-inductance return path for surge current; all three must be connected to PCB ground plane via multiple vias for full 40A rating. |
| Pins 4, 5, 6 | Input (IN) | Protected line connection point; parallel routing required to equalize current sharing and prevent imbalance-induced failure. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.5V across 0–40A and −40°C to +125°C - eliminates thermal derating and simplifies worst-case margin analysis. |
| FET-based shunt topology | Replaces PN-junction avalanche conduction with low-RDS(on) MOSFET switching - reduces junction heating and improves reliability under repeated surges. |
| High-energy EFT immunity | ±4kV per IEC 61000-4-4 (5/50ns, 100kHz/5kHz bursts) - protects against repetitive fast transients in motor drives and PLC environments. |
| Space-optimized footprint | 1.6mm × 1.6mm DFN saves >60% board area vs. SO-8 or SOT-23 TVS solutions rated for equivalent 40A surge handling. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting 20–22V VBus lines in USB-C PD ports against lightning-induced surges and connector hot-plug ESD. IC Role / Device Role / Timing Role: Primary shunt suppressor placed between VBus and chassis ground, upstream of PD controller and load switch. Use Value: Maintains 27.5–28V clamping at 40A and 125°C - prevents overvoltage damage to 22V-rated PD controllers where standard TVS would exceed 35V at same conditions. |
Use Scenario: Safeguarding enable and input pins of industrial-grade load switches (e.g., HS2950P) exposed to field wiring transients. IC Role / Device Role / Timing Role: Front-end transient diverter that limits voltage stress on internal FET gate oxide and drain-source junction during 1.2/50μs surges. Use Value: Enables use of cost-optimized load switches without requiring oversized internal protection - extends product lifetime in remote metering and robotics applications. |
| IoT Device Power Rail Protection | Storage Device 22V Backup Supply Protection |
Use Scenario: Securing 22V auxiliary rails in battery-backed IoT gateways subjected to ESD during field servicing and induced surges from nearby AC lines. IC Role / Device Role / Timing Role: Standalone EOS protector on main DC input, coordinated with low-capacitance TVS on communication interfaces. Use Value: Delivers ±30kV ESD robustness and 40A surge capacity in <2.6mm² footprint - critical for compact, sealed enclosures lacking external filtering. |
Use Scenario: Protecting 22V backup power inputs in enterprise SSDs and NAS controllers against power-supply coupling events and hot-swap transients. IC Role / Device Role / Timing Role: Clamping device placed directly at connector entry point to limit transient propagation into PMIC and flash memory power domains. Use Value: Prevents data corruption and premature wear-out caused by >25V excursions on 22V LDO inputs - validated under IEC 61000-4-5 combination wave testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Semtech TDS2211P | Identical functional specification, pinout, and package; JANS1N6144AUS is the JAN-spec military-grade variant of TDS2211P with extended screening and traceability. | Qualified to MIL-PRF-19500/630 for space and defense programs; includes lot traceability, burn-in, and radiation hardness assurance not present in commercial TDS2211P. | Select JANS1N6144AUS when compliance with MIL-STD-883, Class K screening, or DoD procurement requirements is mandatory. |
| Littelfuse SP3022-01WTG | Standard TVS diode (not FET-based); 24V working voltage, 33.6V clamping at 30A, 350pF capacitance - higher clamping, no temperature stability, larger capacitance. | Suitable only for lower-energy applications (<30A) and ambient-temperature-limited designs; lacks flat-clamp behavior needed for wide-temp industrial use. | Choose SP3022-01WTG only if cost is primary constraint and system-level testing confirms 33.6V clamping is acceptable at max operating temperature. |
Compared with TDS2211P, JANS1N6144AUS adds military-grade reliability screening while retaining identical electrical performance; versus SP3022-01WTG, JANS1N6144AUS delivers 6.1V lower clamping at 40A, 50% lower capacitance, and stable operation across −55°C to +150°C junction range.
Availability
JANS1N6144AUS is available at Aetrix Electronics and suitable for USB Type-C PD systems, industrial load-switch inputs, IoT power rails, storage device backup supplies, and aerospace subsystems requiring stable component supply with full MIL-PRF-19500 traceability.
Supply support for JANS1N6144AUS 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
Semtech Corporation is a U.S.-based fabless semiconductor company specializing in high-performance analog and mixed-signal ICs for power management, protection, sensing, and connectivity.
JANS1N6144AUS belongs to Semtech's Transient Diverting Suppressor (TDS) family - engineered specifically to replace conventional TVS diodes in high-reliability 22V bus protection where flat clamping, temperature stability, and surge endurance are critical.
FAQ
What is the key functional difference between JANS1N6144AUS and standard TVS diodes?
JANS1N6144AUS uses a surge-rated FET with precision trigger circuitry instead of a PN junction, resulting in near-constant clamping voltage (27.5–28V) across 0–40A and −40°C to +125°C. Standard TVS diodes exhibit linear clamping rise (VC = VBR + IPP × RDYN) and significant thermal derating - JANS1N6144AUS eliminates both limitations while delivering 20mΩ dynamic resistance and 175pF capacitance.
Does JANS1N6144AUS require a thermal pad on the PCB?
No, JANS1N6144AUS does not require a thermal pad. Its DFN package dissipates surge energy through the silicon FET channel, not the junction-to-case interface. Layout guidelines specify connecting all GND pins (1–3) to the ground plane via multiple vias and placing the device adjacent to the protected connector - no thermal relief or copper pour under the die is needed or recommended.
Can JANS1N6144AUS protect high-speed data lines like USB SuperSpeed or PCIe?
No, JANS1N6144AUS is not suitable for high-speed data lines. Its 175pF junction capacitance at 22V would severely degrade signal integrity on >100MHz interfaces. It is designed exclusively for DC power rails and low-speed control lines (e.g., USB PD CC, load switch EN). For SuperSpeed lanes, Semtech recommends RClamp3371ZC (<0.25pF) used alongside JANS1N6144AUS in hybrid protection schemes.
What is the meaning of "JAN" prefix in JANS1N6144AUS?
The "JAN" prefix denotes Joint Army-Navy specification compliance - indicating JANS1N6144AUS is manufactured and tested to MIL-PRF-19500/630 standards, including extended temperature screening (−55°C to +150°C), hermeticity verification, radiation hardness assurance, and full lot traceability. This distinguishes it from commercial-grade TDS2211P while maintaining identical electrical specs and pinout.
How should the three IN pins (4, 5, 6) be routed on the PCB for optimal performance?
All three IN pins (4, 5, 6) must be connected in parallel using identical-length, low-inductance traces to the protected line - no daisy-chaining. Unequal trace lengths cause current imbalance, reducing effective surge rating and risking single-pin overstress. The recommended layout places JANS1N6144AUS within 5mm of the connector, with straight-line routing and symmetric fanout to ensure balanced current sharing up to 40A (8/20μs).
JANS1N6144AUS 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):
- 9.1V
- Voltage - Breakdown (Min):
- 11.4V
- Voltage - Clamping (Max) @ Ipp:
- 16.9V
- Current - Peak Pulse (10/1000µs):
- 88.8A
- 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:
- -
JANS1N6144AUS FAQ
1.How can I place an order for JANS1N6144AUS through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N6144AUS 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 JANS1N6144AUS reliable?
The price and inventory of JANS1N6144AUS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANS1N6144AUS is usually 5 days.
3.What payment methods are accepted for JANS1N6144AUS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N6144AUS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N6144AUS?
JANS1N6144AUS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N6144AUS 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 JANS1N6144AUS?
For technical support, including JANS1N6144AUS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N6144AUS requirements.
6.How does Aetrix verify that JANS1N6144AUS is sourced from the original manufacturer or authorized distributors?
All JANS1N6144AUS 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 JANS1N6144AUS meets industry standards.
7.What is the process for return or replacement of JANS1N6144AUS?
All JANS1N6144AUS units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N6144AUS, 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 JANS1N6144AUS part is unused and in its original packaging.
Return procedure for JANS1N6144AUS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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