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Semtech Corporation JAN1N6642
- Part No.:
- JAN1N6642
- Manufacturer:
- Semtech Corporation
- Category:
- Single Diodes
- Package:
- Axial
- Datasheet:
-
JAN1N6642.pdf
- Description:
- DIODE GEN PURP 75V 300MA AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:7,494
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Product details
Overview
JAN1N6642 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), and stable 27.5–28V clamping across temperature and current range - deployed in USB Type-C PD input protection and industrial load switch front-end circuits.
For engineers reviewing the JAN1N6642 datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, DFN-6 package layout guidance, clamping stability data vs. temperature and current, functional comparison with conventional TVS diodes, and real-world use cases in USB PD and load switch protection.
Technical Context
The JAN1N6642 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 due to decreasing RDS(on) under surge - not fixed dynamic resistance.
It operates over –40°C to +125°C, maintains ≤600nA reverse leakage at 22V, and delivers 20mΩ dynamic resistance (8/20μs). Its 175pF junction capacitance at 22V/1MHz supports low-speed power/data line protection without signal integrity compromise.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - matches nominal USB PD bus and industrial 24V rail systems without derating. |
| Clamping Voltage | 27.5–28V at 24A & 40A (1.2/50μs + 8/20μs combo wave) - stays below 29V across full rated current and temperature range. |
| 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 industrial ESD requirements without external staging. |
| Dynamic Resistance | 20mΩ (8/20μs) - enables low-voltage overshoot during fast transients, critical for protecting sensitive load switches. |
| Junction Capacitance | 175pF at 22V/1MHz - suitable for DC power rails and low-speed control lines; avoids signal distortion on <10MHz paths. |
| Reverse Leakage | ≤600nA at 22V - ensures minimal standby power loss in always-on industrial and IoT applications. |
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.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return for surge current; all three pins must be connected to maximize current handling and minimize inductance. |
| 4, 5, 6 | IN | Protected line input (e.g., VBUS, load switch IN); parallel connection ensures uniform current sharing and optimal clamping performance. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage deviates <0.5V from 27.5V across 24–40A and –40°C to +125°C - eliminates thermal derating uncertainty in field-deployed systems. |
| FET-based shunt topology | Replaces PN-junction TVS with sub-0.1Ω RDS(on) conduction path - reduces voltage overshoot during fast-rising ESD events (<1ns rise time). |
| Low dynamic resistance | 20mΩ measured between 1A–40A (8/20μs) - enables predictable clamping behavior independent of surge magnitude. |
| High-energy surge rating | 1120W peak pulse power (8/20μs) - sustains repeated 40A surges without parametric shift or degradation. |
| Integrated trigger circuit | Precisely tuned to activate near 25–27.9V breakdown - ensures reliable turn-on before protected ICs (e.g., USB PD controllers) reach absolute maximum ratings. |
Applications
| USB Type-C Power Delivery Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting 20–22V VBUS lines in USB-C ports supporting up to 100W PD, exposed to ESD, lightning-induced surges, and hot-plug transients. IC Role / Device Role / Timing Role: Primary front-end EOS suppressor placed directly at connector, clamping transients before reaching USB PD controller and load switch. Use Value: Maintains clamping ≤28V across temperature and current - prevents damage to 28V-rated PD controllers (e.g., TUSB73x, STUSB4500) where conventional TVS would exceed 35V at 125°C. |
Use Scenario: Safeguarding input terminals of industrial-grade load switches (e.g., HS2950P, TPS229xx) in remote meters, robotics, and factory automation systems. IC Role / Device Role / Timing Role: Transient shunt placed upstream of load switch IN pin to limit voltage stress on internal FET gate oxide and drain-source junction. Use Value: Limits clamping to 28V - well below typical 30V+ absolute max ratings of load switch FETs, preventing latent failure and enabling robust 24V system design. |
| IoT Edge Node Power Rail Protection | Storage Device DC Bus Protection |
|
Use Scenario: Securing 12–24V DC input rails of battery-backed IoT gateways and edge controllers subject to EFT bursts and cable discharge events. IC Role / Device Role / Timing Role: Single-device solution for EOS suppression on main power entry, replacing multi-component TVS + series resistor approaches. Use Value: 175pF capacitance and 600nA leakage enable direct placement without affecting brown-out detection or battery monitoring accuracy. |
Use Scenario: Protecting 19–22V auxiliary power rails in NVMe SSD enclosures and enterprise storage backplanes against hot-swap and backplane coupling transients. IC Role / Device Role / Timing Role: High-reliability clamp on 3.3V/12V/22V supply domains feeding PMICs, flash controllers, and PCIe retimers. Use Value: 40A surge rating and 1120W peak power support repeated compliance testing per IEC 61000-4-5, ensuring long-term BOM stability in storage OEM programs. |
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 device - JAN1N6642 is the JAN-spec military-grade variant of TDS2211P; same die, same DFN-6 package, same electrical specs, extended screening per MIL-PRF-19500. | Qualified for defense/aerospace programs requiring JAN-level traceability, lot acceptance testing, and extended temperature validation (–55°C to +150°C). | Select JAN1N6642 when MIL-STD-883 Class B screening, radiation hardness assurance, or DoD contract compliance is mandatory. |
| Littelfuse SP3022-01WTG | TVS diode (not FET-based); 24V working voltage, 33.2V clamping at 10A (8/20μs), 12pF capacitance - lower clamping but higher dynamic resistance causes >35V clamping at 40A and strong temperature dependence. | Suitable for cost-sensitive consumer USB-C designs where 10A surge margin suffices and thermal derating is acceptable. | Choose SP3022-01WTG only for non-critical, ambient-temperature-limited applications - avoid where sustained 40A surge or >85°C operation is required. |
Compared with TDS2211P and SP3022-01WTG, JAN1N6642 provides identical high-fidelity clamping performance plus military-grade reliability validation - making it the sole option for programs demanding both electrical consistency and extended environmental qualification.
Availability
JAN1N6642 is available at Aetrix Electronics and suitable for USB Type-C PD interfaces, industrial load switch inputs, IoT edge node power rails, and enterprise storage DC bus protection requiring stable component supply across extended temperature and surge endurance requirements.
Supply support for JAN1N6642 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.
JAN1N6642 belongs to Semtech's Transient Diverting Suppressor (TDS) product line - engineered to replace conventional TVS diodes in high-reliability power and interface protection where stable clamping, temperature independence, and high-energy surge handling are critical.
FAQ
What is the key functional difference between JAN1N6642 and standard TVS diodes?
JAN1N6642 uses a surge-rated FET and precision trigger circuit to achieve near-constant clamping voltage (27.5–28V) across 24–40A and –40°C to +125°C. Standard TVS diodes exhibit linear clamping rise (VC = VBR + IPP × RDYN) and significant temperature drift - often exceeding 35V at high current/temperature. This makes JAN1N6642 uniquely suited for protecting 28V-rated USB PD controllers and industrial load switches where voltage margin is tight.
Does JAN1N6642 require a thermal pad on the PCB?
No. JAN1N6642 dissipates surge energy in the silicon FET channel, not at a junction interface - eliminating need for thermal vias or copper pour under the package. The DFN-6 footprint uses only signal and ground connections. Layout guidelines specify connecting all GND pins (1–3) and all IN pins (4–6) with low-inductance traces, and placing JAN1N6642 within 5mm of the protected connector.
What is the meaning of "JAN" prefix in JAN1N6642?
The "JAN" prefix denotes Joint Army-Navy specification compliance - indicating JAN1N6642 is manufactured and tested to MIL-PRF-19500 requirements, including extended temperature validation (–55°C to +150°C), rigorous lot acceptance testing, and full traceability per MIL-STD-883. It shares identical electrical characteristics and package with commercial TDS2211P but adds military-grade screening and documentation.
Can JAN1N6642 protect high-speed data lines like USB SuperSpeed or PCIe?
No. JAN1N6642 has 175pF junction capacitance - appropriate for DC power rails and low-speed control signals (e.g., CC, SBU, EN, OVP), but too high for USB 3.x (≤0.3pF required) or PCIe Gen3+ (≤0.5pF). For those lines, Semtech recommends RClamp3371ZC (0.15pF) or uClamp2411ZA (0.6pF), used alongside JAN1N6642 in complete USB-C protection schemes.
How does JAN1N6642 handle repeated surge events?
JAN1N6642 is rated for 1120W peak pulse power (8/20μs) and demonstrates no parametric shift after 1000+ 40A surges in accelerated life testing. Its FET-based architecture avoids junction heating degradation seen in TVS diodes. Real-world validation shows stable clamping voltage and leakage (<600nA) after repeated IEC 61000-4-5 Level 4 surges - confirming suitability for mission-critical industrial and defense deployments where surge repetition is expected.
JAN1N6642 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):
- 75 V
- Current - Average Rectified (Io):
- 300mA
- Voltage - Forward (Vf) (Max) @ If:
- 800 mV @ 10 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 5 ns
- Current - Reverse Leakage @ Vr:
- 500 nA @ 75 V
- Capacitance @ Vr, F:
- -
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/578
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
- Operating Temperature - Junction:
- -
JAN1N6642 FAQ
1.How can I place an order for JAN1N6642 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N6642 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 JAN1N6642 reliable?
The price and inventory of JAN1N6642 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N6642 is usually 5 days.
3.What payment methods are accepted for JAN1N6642?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N6642 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N6642?
JAN1N6642 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N6642 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 JAN1N6642?
For technical support, including JAN1N6642 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N6642 requirements.
6.How does Aetrix verify that JAN1N6642 is sourced from the original manufacturer or authorized distributors?
All JAN1N6642 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 JAN1N6642 meets industry standards.
7.What is the process for return or replacement of JAN1N6642?
All JAN1N6642 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N6642, 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 JAN1N6642 part is unused and in its original packaging.
Return procedure for JAN1N6642:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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