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Semtech Corporation JAN1N4247
- Part No.:
- JAN1N4247
- Manufacturer:
- Semtech Corporation
- Category:
- Single Diodes
- Package:
- Axial
- Datasheet:
-
JAN1N4247.pdf
- Description:
- DIODE GEN PURP 600V 1A AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:3,358
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Product details
Overview
JAN1N4247 from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS protection on 22V DC 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 inputs.
For engineers reviewing the JAN1N4247 datasheet, pinout, applications, or equivalent options, this device offers superior clamping stability versus conventional TVS diodes, low dynamic resistance (20 mΩ), and DFN-packaged board-space efficiency - critical when designing for USB PD bus integrity, IoT surge resilience, or industrial e-fuse input protection under thermal stress.
Technical Context
The JAN1N4247 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 standard TVS diodes, its clamping voltage remains nearly constant (27.5–28V) from 24A to 40A due to decreasing RDS(on) under surge conditions.
It operates over –40°C to +125°C with reverse stand-off voltage of 22V, breakdown at 25–27.9V, and junction capacitance of 175pF at 22V/1MHz - enabling robust protection without signal distortion in medium-speed interfaces like USB PD CC/SBU or load switch enable paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - defines maximum continuous DC operating voltage on protected line without leakage or conduction. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs) - ensures downstream ICs (e.g., USB PD controllers) remain below damage threshold during lightning surges. |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 industrial surge immunity requirements with 2Ω source impedance. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - protects against human-body-model ESD events at connector interfaces. |
| Dynamic Resistance | 20 mΩ - enables low-voltage drop during high-current transients, minimizing energy dissipation in the device. |
| Junction Capacitance | 175 pF at 22V/1MHz - compatible with USB PD bus signaling (DC–low MHz), not suitable for SuperSpeed data lanes. |
Pinout & Package
Package: DFN 1.6 mm × 1.6 mm × 0.55 mm, 6-lead, RoHS-compliant, UL 94V-0 molding compound, lead-free finish.
| 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 parasitic inductance. |
| 4, 5, 6 | IN | Protected line input (e.g., VBUS or load switch input); parallel connection ensures uniform current sharing and optimal clamping performance. |
Key Features
| Feature | Design Value |
|---|---|
| Constant clamping voltage | 27.5–28V across full 24–40A surge range and –40°C to +125°C - eliminates thermal derating concerns in industrial environments. |
| FET-based shunt architecture | Replaces PN-junction TVS with low-RDS(on) MOSFET triggered by precision circuit - avoids linear VC = VBR + IPP×RDYN rise. |
| High EFT immunity | ±4kV per IEC 61000-4-4 (5/50ns, 5kHz & 100kHz) - sustains operation during repetitive burst noise in motor drives or PLCs. |
| Low leakage | ≤600 nA at 22V - prevents measurable power loss in always-on battery-backed or energy-harvesting systems. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting 20V–22V VBUS lines in USB-C receptacles against ESD, lightning-induced surges, and hot-plug transients. IC Role / Device Role / Timing Role: Transient diverting suppressor placed between connector and USB PD controller or load switch input. Use Value: Maintains clamping at ≤28V across temperature and current - avoids overvoltage damage to PD controllers rated for 30V absolute max. |
Use Scenario: Shielding enable or input pins of industrial-grade load switches (e.g., HS2950P) from EOS in remote meters or robotics. IC Role / Device Role / Timing Role: Primary front-end surge clamp on VIN or EN path, upstream of internal FET gate drive circuitry. Use Value: Prevents latch-up or gate oxide rupture in load switches by limiting transient overshoot below 30V, even at 125°C ambient. |
| IoT Edge Node Power Rail Protection | Notebook/Tablet DC Input Protection |
Use Scenario: Securing 12–24V DC input rails in battery-powered IoT gateways exposed to field ESD and induced surges. IC Role / Device Role / Timing Role: Single-device solution for EOS suppression on main system rail, replacing multi-component TVS+RC networks. Use Value: Reduces BOM count and PCB area vs. discrete TVS + series resistor, while delivering higher surge rating in same 1.6×1.6mm footprint. |
Use Scenario: Safeguarding 19–20V adapter input circuits in ultrabooks and tablets against accidental AC-line coupling or connector arcing. IC Role / Device Role / Timing Role: Clamping device on main DC input before buck converter or battery charge management IC. Use Value: Enables compliance with IEC 61000-4-5 Level 3 (±1kV) without derating - clamping stays flat up to 125°C junction temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P | Same device - JAN1N4247 is the military-spec qualified variant of TDS2211P per MIL-PRF-19500/565. | Qualified for extended temperature (–55°C to +150°C storage), enhanced screening, and traceable lot control. | Select JAN1N4247 for defense, aerospace, or high-reliability industrial programs requiring MIL-qualified components. |
| SMAJ22A | Standard unidirectional TVS diode; 22V VRWM, 35.5V VC @ 22.5A; no FET-based clamping - VC rises with current and temperature. | Limited to lower-energy transients; requires larger derating margin above 85°C ambient. | Choose SMAJ22A only for cost-sensitive commercial designs where clamping stability and high-temp performance are non-critical. |
Compared with TDS2211P and SMAJ22A, JAN1N4247 delivers identical electrical performance but adds MIL-STD-750/883 screening, extended temperature validation, and controlled traceability - making it the sole choice for programs requiring assured reliability beyond commercial-grade assurance.
Availability
JAN1N4247 is available at Aetrix Electronics and suitable for USB Type-C PD systems, industrial load switch inputs, IoT edge node power rails, and notebook DC input protection requiring stable component supply across extended temperature and long lifecycle programs.
Supply support for JAN1N4247 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, sensing, and connectivity.
JAN1N4247 belongs to Semtech's Transient Diverting Suppressor (TDS) product line - engineered specifically to replace conventional TVS diodes in high-reliability 22V power rail protection where clamping stability, temperature insensitivity, and surge endurance are critical.
FAQ
What is the key functional difference between JAN1N4247 and standard TVS diodes?
JAN1N4247 uses a surge-rated FET with precision trigger circuitry instead of a PN junction, resulting in near-constant clamping voltage (27.5–28V) across its full 24–40A surge range and –40°C to +125°C operating temperature - unlike TVS diodes whose clamping voltage rises linearly with current and temperature. This behavior is confirmed in the TDS2211P datasheet Figures 3 and 4.
Is JAN1N4247 pin-compatible with TDS2211P?
Yes - JAN1N4247 shares identical pin configuration (pins 1–3 = GND, pins 4–6 = IN), package dimensions (DFN 1.6×1.6×0.55 mm), and solder land pattern with TDS2211P. The JAN1N4247 is the MIL-PRF-19500/565 qualified version of TDS2211P, with identical electrical specifications and mechanical form factor.
Can JAN1N4247 be used on USB SuperSpeed (SS) differential pairs?
No - JAN1N4247 has 175 pF junction capacitance at 22V, which would severely degrade signal integrity on USB 3.x SuperSpeed lanes (requiring <0.25 pF). It is intended for VBUS, CC, SBU, or load switch input protection only; low-capacitance devices like RClamp3371ZC are recommended for SS TX/RX lines.
What is the maximum continuous DC voltage JAN1N4247 can withstand without conduction?
JAN1N4247 has a reverse stand-off voltage (VRWM) of 22V - meaning it remains in high-impedance state with ≤600 nA leakage up to 22V DC. Operation above 22V risks premature triggering; the device breaks down at 25–27.9V (VBR), per Electrical Characteristics table on page 2 of the TDS2211P datasheet.
Does JAN1N4247 require a thermal pad or heatsink for 40A surge handling?
No - JAN1N4247 dissipates surge energy primarily through its low-RDS(on) FET channel, not junction heating. The datasheet explicitly states "no thermal pad is needed" (page 6), and layout guidelines emphasize low-inductance grounding via multiple vias rather than thermal copper - validated by its 1120W peak pulse power rating at 8/20μs.
JAN1N4247 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):
- 600 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 1 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 2 µs
- Current - Reverse Leakage @ Vr:
- 1 µA @ 600 V
- Capacitance @ Vr, F:
- -
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/286
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
- Operating Temperature - Junction:
- -
JAN1N4247 FAQ
1.How can I place an order for JAN1N4247 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4247 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 JAN1N4247 reliable?
The price and inventory of JAN1N4247 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4247 is usually 5 days.
3.What payment methods are accepted for JAN1N4247?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4247 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4247?
JAN1N4247 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4247 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 JAN1N4247?
For technical support, including JAN1N4247 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4247 requirements.
6.How does Aetrix verify that JAN1N4247 is sourced from the original manufacturer or authorized distributors?
All JAN1N4247 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 JAN1N4247 meets industry standards.
7.What is the process for return or replacement of JAN1N4247?
All JAN1N4247 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4247, 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 JAN1N4247 part is unused and in its original packaging.
Return procedure for JAN1N4247:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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