Semtech Corporation 1N6136
- Part No.:
- 1N6136
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- Axial
- Datasheet:
-
1N6136.pdf
- Description:
- TVS DIODE 136.8VWM 257.4VC AXIAL
- Quantity:
- Payment:

- Shipping:

Inventory:8,939
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Product details
Overview
TDS2211P from Semtech is a transient diverting suppressor designed to protect 22V-rated I/O or power lines against high-energy EOS events, 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, industrial load switch inputs, and IoT device bus protection.
For engineers reviewing the TDS2211P datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, DFN-6 package layout guidance, functional role in shunt-based surge diversion, and real-world selection criteria versus conventional TVS diodes.
Technical Context
The TDS2211P uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit that senses overvoltage and drives the FET into low-RDS(on) conduction. Unlike conventional TVS diodes, its clamping voltage remains nearly constant due to dynamic resistance reduction under surge current.
It operates with reverse stand-off voltage of 22V, breakdown at 25–27.9V (It = 1mA), and maintains ≤28V clamping up to 40A (8/20μs) with 20mΩ dynamic resistance - enabling robust protection for 22V bus systems without thermal derating penalties.
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 surge. |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 industrial surge immunity requirements. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds standard interface ESD test levels for ruggedized port protection. |
| Junction Capacitance | 175pF at 22V, 1MHz - compatible with low-speed power/data lines; not suitable for >100MHz signal paths. |
| Dynamic Resistance | 20mΩ - enables flat clamping curve and minimal voltage rise under increasing surge current. |
| Package | DFN 1.6 × 1.6 × 0.55 mm, 6-lead - supports high-density PCB layouts with minimal board area and thermal path optimization. |
Pinout & Package
Package: DFN-6 (1.6 mm × 1.6 mm × 0.55 mm), Pb-free, RoHS-compliant, UL 94V-0 molding compound. Exposed pad not present; all six terminals are signal/ground connections.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path for surge current; all three must be connected to maximize current handling and minimize inductance. |
| 4, 5, 6 | IN | Protected line input; tied together to distribute surge current across parallel bond wires and reduce localized heating. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based shunt architecture | Enables <28V clamping independent of surge amplitude - eliminates linear VC = VBR + IPP×RDYN drift seen in TVS diodes. |
| Stable clamping over temperature | Maintains ≤28V clamping from –40°C to +125°C - avoids thermal runaway and enables reliable operation in industrial ambient conditions. |
| High-energy surge rating | 1120W peak pulse power (8/20μs) - supports repeated lightning-induced transients without degradation. |
| Low dynamic resistance | 20mΩ measured between 1A–40A - minimizes IR drop and preserves voltage margin for sensitive downstream loads. |
| Integrated trigger circuit | Precisely calibrated to activate near 25V breakdown - ensures fast response (<10ns) while avoiding false triggering during normal operation. |
Applications
| USB Type-C Power Delivery Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting VBus lines in USB-C receptacles supporting up to 20V PD negotiation. IC Role / Device Role / Timing Role: Shunt-based transient diverter placed between connector and PD controller or load switch input. Use Value: Maintains clamping at ≤28V across full 40A surge and –40°C to +125°C, preventing controller latch-up or gate oxide damage. |
Use Scenario: Safeguarding enable and input pins of industrial-grade load switches (e.g., HS2950P) exposed to field surges. IC Role / Device Role / Timing Role: Primary front-end EOS suppressor diverting transients before they reach the switch's internal FET. Use Value: Clamps below the 30V absolute maximum rating of typical load switch inputs, eliminating need for external series impedance or derating. |
| IoT Edge Node Power Bus Protection | Storage Device 22V Rail Protection |
Use Scenario: Securing 22V auxiliary rails in battery-backed smart sensors or remote meters subject to induced lightning surges. IC Role / Device Role / Timing Role: Standalone surge protector on main power input, upstream of DC-DC converters and PMICs. Use Value: Delivers 40A surge capability in 1.6 mm² footprint - critical for space-constrained edge nodes where board area is premium. |
Use Scenario: Protecting 22V supply rails in NVMe SSD enclosures or enterprise storage backplanes. IC Role / Device Role / Timing Role: High-reliability EOS guard for power distribution networks feeding controller and flash memory arrays. Use Value: Stable clamping ensures no voltage overshoot reaches NAND controller I/Os during hot-plug or ESD events, reducing data corruption risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A | Standard unidirectional TVS diode; 22V VRWM, 35.5V VC @ 12.3A; higher clamping, no FET architecture. | Limited to lower-energy surges; clamping rises to ~42V at 40A and degrades above 85°C. | Choose SMAJ22A only for cost-sensitive, non-industrial designs with <20A surge requirements and ambient <70°C. |
| SP1003-220K | Bi-directional TVS array; 22V VRWM, 36V VC @ 12A; 0.5pF per line, optimized for data lines. | Designed for differential signal protection (e.g., RS-485), not single-ended 22V power rail clamping. | Select SP1003-220K when protecting low-capacitance communication buses - not for power-line EOS suppression like TDS2211P. |
Compared with SMAJ22A and SP1003-220K, the TDS2211P uniquely delivers flat 28V clamping at 40A across full industrial temperature range via FET-shunt topology - making it the only option qualified for 22V USB PD and load switch input protection where voltage margin is critical.
Availability
TDS2211P is available at Aetrix Electronics and suitable for USB Type-C PD interfaces, industrial load switch inputs, and IoT edge node power bus protection requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TDS2211P 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.
The TDS2211P belongs to Semtech's Transient Diverting Suppressor (TDS) product line - engineered specifically to replace conventional TVS diodes in high-reliability 20–30V power rail protection where flat clamping and temperature stability are mandatory.
FAQ
What is the primary protection mechanism used in the TDS2211P?
The TDS2211P uses a surge-rated FET as its core protection element, activated by an integrated precision trigger circuit. When an overvoltage event exceeds ~25V, the trigger turns on the FET, creating a low-resistance shunt path to ground. This architecture delivers stable clamping voltage - unlike TVS diodes whose clamping rises linearly with current. The TDS2211P's 20mΩ dynamic resistance ensures minimal voltage rise even at 40A.
Can the TDS2211P be used to protect USB Type-C VBus lines operating at 20V?
Yes - the TDS2211P is explicitly validated for USB Type-C PD applications with up to 22V working voltage. Its 22V reverse stand-off voltage and ≤28V clamping at 40A ensure the protected PD controller remains within safe operating limits during IEC 61000-4-5 surges and IEC 61000-4-2 ESD events. Semtech's reference design places TDS2211P directly at the Type-C connector, upstream of the PD controller.
How does the TDS2211P differ from standard TVS diodes in temperature performance?
Unlike standard TVS diodes - whose clamping voltage increases and peak current rating decreases with rising temperature - the TDS2211P maintains ≤28V clamping from –40°C to +125°C. This stability results from its FET-based shunt architecture, where RDS(on) decreases with temperature, counteracting thermal effects. Data sheets confirm flat clamping curves across temperature in Figures 3 and 4 of the TDS2211P datasheet.
What is the recommended PCB layout for optimal surge performance of the TDS2211P?
For optimal performance, connect all three IN pins (4,5,6) via a single short, wide trace to the protected line, and tie all three GND pins (1,2,3) directly to a solid ground plane using multiple vias. Place the TDS2211P as close as possible to the connector - within 5 mm - to minimize inductive coupling. Avoid thermal pads or isolated copper; energy is dissipated internally, and parasitic inductance must be minimized for sub-10ns response.
Is the TDS2211P suitable for protecting load switch inputs in industrial equipment?
Yes - the TDS2211P is recommended in Semtech's application notes for protecting load switch inputs (e.g., HS2950P) in industrial equipment, robotics, and remote meters. It clamps below typical load switch absolute maximum ratings (e.g., 30V), preventing gate oxide damage during lightning surges. Its 40A rating and stable clamping make it ideal for safeguarding the input stage where failure would disable entire subsystems.
1N6136 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):
- 136.8V (Max)
- Voltage - Breakdown (Min):
- 162V
- Voltage - Clamping (Max) @ Ipp:
- 257.4V
- Current - Peak Pulse (10/1000µs):
- 1.9A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 175°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
1N6136 FAQ
1.How can I place an order for 1N6136 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6136 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 1N6136 reliable?
The price and inventory of 1N6136 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6136 is usually 5 days.
3.What payment methods are accepted for 1N6136?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6136 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6136?
1N6136 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6136 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 1N6136?
For technical support, including 1N6136 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6136 requirements.
6.How does Aetrix verify that 1N6136 is sourced from the original manufacturer or authorized distributors?
All 1N6136 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 1N6136 meets industry standards.
7.What is the process for return or replacement of 1N6136?
All 1N6136 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6136, 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 1N6136 part is unused and in its original packaging.
Return procedure for 1N6136:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6136 Tags

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