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Semtech Corporation JANS1N6120A
- Part No.:
- JANS1N6120A
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- Axial
- Datasheet:
-
JANS1N6120A.pdf
- Description:
- 500 W, BIPOLAR TRANSIENT VOLTAGE
- Quantity:
- Payment:
- Shipping:
Inventory:5,687
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Product details
Overview
JANS1N6120A from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS protection on 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, 20mΩ dynamic resistance, and 175pF junction capacitance - deployed in USB Type-C PD input protection and industrial load switch front-end circuits.
For engineers reviewing the JANS1N6120A datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, DFN-6 package layout guidance, temperature-stable clamping behavior, and direct alternatives for 22V bus protection in high-reliability embedded and industrial systems.
Technical Context
JANS1N6120A employs 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 24–40A peak pulse current due to decreasing RDS(on) under surge conditions.
The device operates over −40°C to +125°C, maintains stable 27.5–28V clamping up to 125°C, and exhibits <600nA reverse leakage at 22V. Its 175pF capacitance at 22V/1MHz and 20mΩ dynamic resistance enable low-voltage overshoot suppression without signal integrity compromise on high-speed power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC operating voltage of protected line without leakage or conduction. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs + 1.2/50μs combo wave) - ensures downstream 24V-rated ICs (e.g., USB PD controllers) remain below damage threshold during surge events. |
| Peak Pulse Current | 40A (8/20μs) - supports compliance with IEC 61000-4-5 ±1kV surge testing (RS = 42Ω, CS = 0.5μF) on industrial 22V buses. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - provides robust handling of human-body-model ESD events at connector interfaces. |
| Dynamic Resistance | 20mΩ - enables minimal voltage rise under high-current transients, critical for maintaining tight clamping across temperature and current range. |
| Junction Capacitance | 175pF at 22V/1MHz - low enough to avoid signal distortion on 22V power rails while enabling effective high-frequency transient shunting. |
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 structure.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path for surge current - all three pins must be connected to maximize current-handling capability and minimize parasitic inductance. |
| 4, 5, 6 | IN | Input connection to protected 22V bus - all three pins are internally tied and must be shorted externally for full 40A rating and optimal ESD coupling performance. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.5V across 24–40A and −40°C to +125°C - eliminates design margin inflation needed with traditional TVS diodes. |
| FET-based shunt topology | Surge energy diverted through low-RDS(on) channel instead of PN-junction - avoids thermal runaway and enables repeatable high-current surge survival. |
| Low dynamic resistance | 20mΩ measured between 1A–40A (8/20μs) - directly enables sub-28V clamping at full rated surge, critical for 24V system component safety. |
| High EFT immunity | ±4kV per IEC 61000-4-4 (5/50ns, 100kHz/5kHz) - protects against burst noise in industrial motor drives and PLC I/O modules. |
Applications
| USB Type-C Power Delivery Input Protection | Industrial Load Switch Front-End Protection |
|---|---|
Use Scenario: Protecting VBus lines in USB-C receptacles supporting up to 20V PD negotiation, exposed to ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Primary EOS shunt suppressor placed immediately after the connector, clamping transients before reaching the PD controller and load switch. Use Value: Maintains 27.5–28V clamping across temperature and current - prevents false overvoltage shutdown and ensures PD controller survival at 125°C ambient. |
Use Scenario: Safeguarding input terminals of industrial-grade load switches (e.g., HS2950P) in remote meters, robotics, and factory automation equipment. IC Role / Device Role / Timing Role: Front-line transient diverter that limits voltage stress on the load switch's internal MOSFET during 40A surge events. Use Value: Clamps below 28V at 40A - keeps gate-source and drain-source voltages within safe operating area of integrated e-fuse FETs. |
| IoT Edge Node Power Rail Protection | Storage Device 22V Backup Supply Protection |
Use Scenario: Securing 22V auxiliary power inputs on battery-backed IoT gateways subjected to field ESD and induced surges in unshielded enclosures. IC Role / Device Role / Timing Role: Single-device solution replacing multi-stage TVS+MOV networks - handles both fast ESD and slower lightning surges. Use Value: 175pF capacitance avoids loading effects on 22V DC-DC feedback paths; ±30kV ESD rating ensures reliability in handheld deployment scenarios. |
Use Scenario: Protecting 22V backup power inputs on NVMe SSDs and enterprise storage controllers where voltage overshoot could corrupt flash memory or PMIC sequencing. IC Role / Device Role / Timing Role: Low-capacitance, high-energy clamp placed at board edge before bulk capacitance and PMIC input. Use Value: Stable 27.5–28V clamping prevents latch-up or overvoltage reset of 24V-tolerant PMICs during hot-plug or cable-disconnect transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P | Identical functional specification, same package, same marking code T22 - JANS1N6120A is Semtech's military/aerospace qualified variant of TDS2211P with extended screening and traceability. | Qualified to MIL-PRF-19500/630 (JAN) standards; includes lot traceability, burn-in, and temperature cycling per MIL-STD-750. | Select JANS1N6120A for defense, avionics, or space-qualified designs requiring radiation-hardened screening and DoD traceability. |
| SMAJ22A | Standard unidirectional TVS diode; 22V VRWM, 35.5V VC @ 12.3A; higher clamping voltage, no constant-clamp behavior, 10× higher dynamic resistance (~200mΩ). | Limited to lower-energy transients; clamping rises significantly with temperature and current - unsuitable for 40A or >85°C operation. | Use SMAJ22A only in cost-sensitive commercial applications with <15A surge requirements and ambient <70°C. |
Compared with TDS2211P, JANS1N6120A offers identical electrical performance with added JAN qualification for mission-critical environments; versus SMAJ22A, it delivers 8.5V lower clamping at 40A and stable voltage control across temperature - essential for protecting modern 24V-tolerant ICs in harsh industrial settings.
Availability
JANS1N6120A is available at Aetrix Electronics and suitable for USB Type-C PD systems, industrial load switch front-ends, and IoT edge node power rail protection requiring stable component supply under extended temperature and high-reliability screening requirements.
Supply support for JANS1N6120A 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 analog and mixed-signal ICs for precision protection, signal integrity, and power management.
JANS1N6120A belongs to Semtech's Transient Diverting Suppressor (TDS) product line - engineered to replace conventional TVS diodes in high-energy EOS applications where stable clamping, low dynamic resistance, and wide temperature operation are mandatory.
FAQ
What is the key functional difference between JANS1N6120A and standard TVS diodes?
JANS1N6120A uses a surge-rated FET with precision trigger circuitry to achieve near-constant clamping voltage (27.5–28V) across 24–40A and −40°C to +125°C, unlike TVS diodes whose clamping rises linearly with current and temperature due to fixed dynamic resistance. This makes JANS1N6120A uniquely suited for protecting 24V-tolerant ICs in thermally demanding industrial environments.
Does JANS1N6120A require a thermal pad on the PCB?
No, JANS1N6120A does not require a thermal pad. Its DFN-6 package dissipates surge energy through the silicon FET structure rather than a PN junction, eliminating thermal runaway risk. Layout guidelines emphasize low-inductance grounding via all three GND pins (1, 2, 3) and direct routing of all three IN pins (4, 5, 6) to the protected line - not thermal mass.
Can JANS1N6120A be used on data lines like USB SuperSpeed or DisplayPort?
No, JANS1N6120A is not suitable for high-speed data lines. Its 175pF junction capacitance would severely degrade signal integrity on differential pairs operating above ~100MHz. For USB SS, DP, or HDMI lanes, Semtech recommends low-capacitance devices like RClamp3371ZC (<0.25pF); JANS1N6120A is intended exclusively for 22V power or low-frequency I/O line protection.
What is the meaning of "JAN" in JANS1N6120A?
"JAN" denotes Joint Army-Navy qualification per MIL-PRF-19500/630, indicating JANS1N6120A has undergone rigorous military-grade screening including extended temperature cycling, burn-in, lot traceability, and failure analysis - distinguishing it from commercial-grade TDS2211P while retaining identical electrical specifications and package dimensions.
How should the six pins of JANS1N6120A be routed on the PCB?
All three GND pins (1, 2, 3) must connect to a low-inductance ground plane using multiple vias; all three IN pins (4, 5, 6) must be shorted together and routed as a single low-impedance path from the connector to the protected bus. JANS1N6120A must be placed within 5mm of the entry point - any stub length or split routing degrades ESD response and reduces effective surge current handling.
JANS1N6120A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- Axial
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- 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):
- 9.3A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
JANS1N6120A FAQ
1.How can I place an order for JANS1N6120A through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N6120A 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 JANS1N6120A reliable?
The price and inventory of JANS1N6120A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANS1N6120A is usually 5 days.
3.What payment methods are accepted for JANS1N6120A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N6120A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N6120A?
JANS1N6120A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N6120A 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 JANS1N6120A?
For technical support, including JANS1N6120A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N6120A requirements.
6.How does Aetrix verify that JANS1N6120A is sourced from the original manufacturer or authorized distributors?
All JANS1N6120A 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 JANS1N6120A meets industry standards.
7.What is the process for return or replacement of JANS1N6120A?
All JANS1N6120A units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N6120A, 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 JANS1N6120A part is unused and in its original packaging.
Return procedure for JANS1N6120A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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