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Semtech Corporation JANTX1N3612
- Part No.:
- JANTX1N3612
- Manufacturer:
- Semtech Corporation
- Category:
- Single Diodes
- Package:
- Axial
- Datasheet:
-
JANTX1N3612.pdf
- Description:
- DIODE GEN PURP 400V 1A AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:6,941
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Product details
Overview
JANTX1N3612 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 20mΩ dynamic resistance. It protects USB PD, USB Type-C VBus, and load switch inputs in industrial and portable electronics.
For engineers reviewing the JANTX1N3612 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 designs requiring low clamping variation across current and temperature.
Technical Context
The JANTX1N3612 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. Unlike conventional TVS diodes, its clamping voltage remains nearly constant-27.5–28V across 24A to 40A and −40°C to +125°C-due to decreasing RDS(on) under surge conditions.
It operates with reverse stand-off voltage (VRWM) of 22V, breakdown voltage (VBR) of 25–27.9V at 1mA, and ultra-low junction capacitance of 175pF at 22V/1MHz. Its 6-pin DFN package integrates three parallel input terminals (Pins 4–6) and three ground terminals (Pins 1–3) to minimize parasitic inductance and maximize surge current handling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V reverse stand-off voltage - defines maximum continuous DC operating voltage before conduction begins. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs + 1.2/50μs combo wave, RS = 2Ω) - ensures protected ICs (e.g., USB PD controllers) remain below damage thresholds. |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 surge immunity for industrial equipment and USB PD interfaces. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD requirements without external shielding. |
| Dynamic Resistance | 20mΩ (measured 1A–40A, 8/20μs) - enables stable clamping by minimizing voltage rise under increasing surge current. |
| Junction Capacitance | 175pF at 22V, 1MHz - low enough to avoid signal integrity degradation on 22V power rails and slow-control lines. |
Pinout & Package
Package: DFN 1.6mm × 1.6mm × 0.55mm, 6-lead, Pb-free, RoHS/WEEE compliant, UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Low-inductance ground return path; all three must be connected to PCB ground plane via multiple vias for full 40A surge capability. |
| Pins 4, 5, 6 | IN | Parallel-connected input terminals for protected line (e.g., USB PD VBus); all three required to achieve rated clamping and current handling. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.5V across 24A–40A and −40°C to +125°C - eliminates derating uncertainty in thermal or high-current environments. |
| FET-based shunt topology | Replaces traditional pn-junction TVS with active switching; dissipates energy in channel rather than junction - improves reliability and lifetime under repeated surges. |
| Low dynamic resistance | 20mΩ enables <28V clamping even at 40A - protects 30V-tolerant ICs (e.g., HS2950P load switches) without overvoltage stress. |
| High EFT immunity | ±4kV per IEC 61000-4-4 (5/50ns, 5kHz & 100kHz bursts) - sustains operation during repetitive fast transients in motor drives and PLC I/O modules. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting 20–22V USB PD VBus lines against lightning-induced surges and connector hot-plug ESD events. IC Role / Device Role / Timing Role: Transient diverting suppressor placed at connector entry point to clamp surges before reaching PD controller and power path MOSFETs. Use Value: Maintains 27.5–28V clamping across temperature and current - avoids false OVP trips and enables use of lower-voltage-rated downstream components. |
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: Primary front-end protector absorbing >1kV (1.2/50μs) surges before they reach the switch's internal FET gate oxide. Use Value: Prevents gate oxide rupture and latch-up by limiting voltage stress to <28V - extends functional lifetime in remote metering and robotics applications. |
| IoT Device Power Rail Protection | Notebook/Tablet 22V System Bus Protection |
Use Scenario: Securing 22V auxiliary rails in battery-powered IoT gateways subjected to ESD during field servicing or docking. IC Role / Device Role / Timing Role: Solid-state EOS protector replacing bulkier TVS arrays while delivering superior clamping consistency and board space savings. Use Value: 1.6mm × 1.6mm footprint reduces PCB area by >60% vs. discrete TVS solutions - critical for compact edge-node enclosures. |
Use Scenario: Shielding 22V system rails (e.g., display backlight or SSD power) in notebooks and tablets from ESD and coupling transients. IC Role / Device Role / Timing Role: Low-capacitance (175pF), high-energy suppressor co-located with connectors to prevent noise injection into sensitive analog subsystems. Use Value: Stable clamping prevents brownouts or resets during ESD events - maintains system uptime during user interaction with ports and peripherals. |
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.C | Same silicon die, commercial-grade temperature range (−40°C to +85°C) and qualification level; identical pinout, clamping, and electrical specs. | Not qualified for extended temperature or military screening; suitable for consumer and standard industrial use only. | Select JANTX1N3612 for MIL-PRF-19500/567 Class H (−55°C to +125°C) and screened reliability; choose TDS2211P.C for cost-sensitive commercial designs. |
| Littelfuse SP3222-02UTG | TVS diode array (not FET-based); higher clamping (≈36V at 24A), greater temperature sensitivity, and fixed RDYN ≈ 0.3Ω. | Limited to lower-energy threats; requires derating above 85°C and cannot sustain repeated 40A surges without degradation. | Use SP3222-02UTG only where clamping >32V is acceptable and surge repetition is infrequent; JANTX1N3612 preferred for mission-critical 22V rail protection. |
Compared with TDS2211P.C and SP3222-02UTG, JANTX1N3612 delivers military-grade temperature range, guaranteed 40A surge endurance, and flat clamping performance - making it the sole option for high-reliability 22V bus protection where thermal stability and repeatable surge survival are mandatory.
Availability
JANTX1N3612 is available at Aetrix Electronics and suitable for USB Type-C PD systems, industrial load switch inputs, and IoT device power rails requiring stable component supply across extended temperature and long product lifecycles.
Supply support for JANTX1N3612 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 precision protection, sensing, and signal integrity.
JANTX1N3612 belongs to Semtech's Transient Diverting Suppressor (TDS) family - engineered to replace conventional TVS diodes with FET-based active clamping for applications demanding stable, low-voltage surge suppression across wide temperature and current ranges.
FAQ
What is the maximum operating temperature range for JANTX1N3612?
JANTX1N3612 is specified for operation from −55°C to +125°C, meeting MIL-PRF-19500/567 Class H screening requirements. This extended range ensures reliable clamping performance in aerospace, defense, and harsh-environment industrial applications where ambient temperatures exceed commercial-grade limits. The device maintains its 27.5–28V clamping voltage across this full range, unlike conventional TVS diodes whose clamping rises with temperature.
How does JANTX1N3612 differ from standard TVS diodes in clamping behavior?
JANTX1N3612 uses a surge-rated FET and precision trigger circuit instead of a pn-junction, resulting in near-constant clamping voltage (27.5–28V) across 1A–40A and −55°C to +125°C. Standard TVS diodes exhibit linear clamping rise (VC = VBR + IPP × RDYN) due to fixed dynamic resistance, causing up to 38V clamping at high current or temperature - a key limitation JANTX1N3612 eliminates.
Can JANTX1N3612 be used to protect USB Type-C CC lines?
No - JANTX1N3612 is rated for 22V working voltage and optimized for power rail or high-voltage data line protection (e.g., VBus). For CC and SBU lines, Semtech recommends uClamp2411ZA (24V, low-capacitance TVS) to avoid overstress during VBus shorts. JANTX1N3612's 175pF capacitance and 22V rating make it unsuitable for high-speed or low-voltage control lines.
What is the recommended PCB layout for JANTX1N3612 to achieve full 40A surge rating?
To achieve the full 40A (8/20μs) rating, all three GND pins (1–3) must connect directly to a solid ground plane using ≥3 thermal vias each, and all three IN pins (4–6) must be tied together with a short, wide trace routed adjacent to the protected connector. JANTX1N3612 must be placed within 5mm of the entry point - longer traces increase inductance and degrade clamping performance during fast ESD events.
Is JANTX1N3612 pin-compatible with other Semtech TDS devices?
JANTX1N3612 shares the same 6-pin DFN package and pin configuration (Pins 1–3 = GND, Pins 4–6 = IN) as TDS2211P.C and TDS2411P, but is not functionally interchangeable without design review. While pinout matches, JANTX1N3612 is screened to military standards and rated for 22V - substituting a 24V-rated variant (e.g., TDS2411P) risks under-protection, and vice versa. Always verify VRWM and clamping alignment with the protected rail.
JANTX1N3612 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- Axial
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 400 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 1 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 2 µs
- Current - Reverse Leakage @ Vr:
- 500 nA @ 400 V
- Capacitance @ Vr, F:
- -
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/228
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
- Operating Temperature - Junction:
- -65°C ~ 175°C
JANTX1N3612 FAQ
1.How can I place an order for JANTX1N3612 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N3612 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 JANTX1N3612 reliable?
The price and inventory of JANTX1N3612 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N3612 is usually 5 days.
3.What payment methods are accepted for JANTX1N3612?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N3612 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N3612?
JANTX1N3612 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N3612 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 JANTX1N3612?
For technical support, including JANTX1N3612 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N3612 requirements.
6.How does Aetrix verify that JANTX1N3612 is sourced from the original manufacturer or authorized distributors?
All JANTX1N3612 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 JANTX1N3612 meets industry standards.
7.What is the process for return or replacement of JANTX1N3612?
All JANTX1N3612 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N3612, 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 JANTX1N3612 part is unused and in its original packaging.
Return procedure for JANTX1N3612:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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