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Vishay General Semiconductor - Diodes Division 3KASMC13HE3_A/I
- Part No.:
- 3KASMC13HE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3KASMC13HE3_A/I.pdf
- Description:
- TVS DIODE 13VWM 23.8VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,365
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Product details
Overview
3KASMC13HE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, rated for 13 V stand-off voltage (VWM), 14.4–15.9 V breakdown (VBR), 3000 W peak pulse power (10/1000 μs), 21.5 V clamping voltage at 140 A IPPM, and qualified to AEC-Q101 for automotive electronics protection.
For engineers reviewing the 3KASMC13HE3_A/I datasheet, 3KASMC13HE3_A/I pinout, 3KASMC13HE3_A/I application, or 3KASMC13HE3_A/I equivalent, this page delivers verified electrical specs, thermal limits, junction-to-ambient resistance, polarity marking, and automotive-grade reliability context - critical for ESD/surge protection design in sensor interfaces, power rails, and signal lines.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology with optimized junction passivation for stable operation up to TJ = 185 °C. It delivers low incremental surge resistance and fast response time to clamp transients induced by inductive switching or lightning surges on sensitive nodes.
Rated for uni-directional polarity only, it features a color band denoting cathode, meets MSL Level 1 per J-STD-020 (260 °C peak reflow), and is RoHS-compliant with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - maximum reverse voltage before clamping begins; defines safe operating range for protected circuit |
| VBR (min/max) | 14.4 V / 15.9 V at 1 mA - precise breakdown threshold ensures predictable turn-on during overvoltage events |
| VC @ IPPM | 21.5 V at 140 A - clamping voltage under 3000 W surge; limits stress on downstream ICs or MOSFETs |
| PPPM | 3000 W (10/1000 μs) - high-energy surge handling capability suitable for automotive load-dump and ISO 7637-2 compliance |
| TJ max. | 185 °C - enables reliable operation in under-hood automotive environments and industrial high-temp enclosures |
| RθJA | 77.5 °C/W - thermal resistance informs PCB pad layout and heatsinking requirements for sustained power dissipation |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: DO-214AB (SMC), molded in UL 94 V-0 compliant compound; cathode indicated by color band; matte tin-plated leads; 0.211 g unit weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point in uni-directional configuration | Connected to lower-potential side of protected line (e.g., ground or return path) |
| Cathode | Reverse-biased terminal; clamping occurs when voltage exceeds VBR | Marked with color band; connected to protected signal/power line requiring overvoltage suppression |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier process improves long-term stability and leakage control at 150 °C |
| High-temperature capability | TJ max. = 185 °C supports placement near heat sources in engine control units and ADAS modules |
| Peak pulse power | 3000 W (10/1000 μs) handles severe transients such as ISO 16750-2 load dump without degradation |
| Clamping performance | Low VC/VBR ratio (~1.5) ensures minimal overvoltage overshoot during fast-rising surges |
| Manufacturing compliance | MSL Level 1, JESD 201 Class 2 whisker resistance, and RoHS-compliant materials ensure assembly robustness |
Applications
| Automotive Sensor Protection | Industrial Power Rail Clamping |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from ESD and inductive switching noise in vehicle ECUs. IC Role / Device Role / Timing Role: Uni-directional TVS placed between signal line and ground to shunt transient energy before reaching IC input pins. Use Value: 21.5 V clamping at 140 A prevents latch-up or gate oxide damage in 12 V automotive systems while maintaining signal integrity. |
Use Scenario: Safeguarding 12–24 V DC power inputs in PLC I/O modules and motor drives against load dump and back-EMF spikes. IC Role / Device Role / Timing Role: Primary surge suppression device across input rail and chassis ground, absorbing up to 3000 W for <1 ms. Use Value: 185 °C junction rating allows direct mounting on high-temp PCBs without derating, reducing need for external heatsinks. |
| Telecom Line Interface | Consumer Device USB Port Protection |
Use Scenario: Shielding Ethernet PHYs and PoE injectors from lightning-induced surges on twisted-pair data lines. IC Role / Device Role / Timing Role: Secondary-level TVS on isolated secondary side, coordinated with primary GDT or gas discharge tube. Use Value: Low capacitance (<100 pF at zero bias) avoids signal distortion in 100BASE-TX applications while meeting IEC 61000-4-5 Level 3. |
Use Scenario: Adding robust ESD immunity to USB 2.0 VBUS and D+/D− lines in smart home hubs and portable audio devices. IC Role / Device Role / Timing Role: Fast-response clamping element placed adjacent to connector, referenced to system ground. Use Value: AEC-Q101 qualification ensures consistent performance across production batches and extended temperature ranges (-65 °C to +185 °C). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ13A | Lower PPPM (400 W), same DO-214AC (SMA) package, VBR 14.4–15.9 V, VC = 21.5 V at 19.3 A | Not suitable for automotive load-dump; limited to consumer-grade surge events (IEC 61000-4-2/4-4) | Select when cost-sensitive, low-energy protection suffices and board space permits SMA footprint |
| SMCJ13A | Same DO-214AB (SMC) package, identical VWM/VBR/VC, but rated for 1500 W PPPM (10/1000 μs) | Lacks AEC-Q101 qualification; not validated for automotive temperature cycling or HTRB | Choose for industrial non-automotive use where full 3000 W capability is unnecessary and qualification overhead is avoided |
Compared with SMAJ13A and SMCJ13A, the 3KASMC13HE3_A/I uniquely combines 3000 W surge capacity, AEC-Q101 qualification, and 185 °C operation - enabling single-device compliance with ISO 16750-2 and extended-life requirements in harsh automotive environments.
Availability
3KASMC13HE3_A/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial power rail clamping, telecom line protection, and consumer USB port hardening requiring stable component supply and long-term lifecycle support.
Supply support for 3KASMC13HE3_A/I 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
Vishay General Semiconductor designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on high-reliability, high-temperature, and automotive-qualified components.
The 3KASMC series belongs to Vishay's PAR® (Protection Against Transients) family, engineered specifically for robust transient suppression in automotive, industrial, and telecom infrastructure where failure modes must be eliminated under extreme thermal and surge stress.
FAQ
What is the clamping voltage of the 3KASMC13HE3_A/I under maximum surge conditions?
The 3KASMC13HE3_A/I has a maximum clamping voltage (VC) of 21.5 V at 140 A peak pulse current (IPPM), measured using a 10/1000 μs waveform. This value ensures that protected circuits experience no more than 21.5 V during a 3000 W transient event, making it suitable for safeguarding 12 V automotive electronics and industrial control ICs. The 3KASMC13HE3_A/I maintains this clamping performance across its full operating temperature range.
Is the 3KASMC13HE3_A/I qualified for automotive applications?
Yes, the 3KASMC13HE3_A/I is AEC-Q101 qualified, having passed rigorous stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD. Its 185 °C maximum junction temperature and MSL Level 1 reflow compatibility further validate its suitability for under-hood and body-control module applications. The 3KASMC13HE3_A/I is explicitly listed in Vishay's AEC-Q101 qualified product matrix.
What does the "_A/I" suffix mean in 3KASMC13HE3_A/I?
The "_A/I" suffix in 3KASMC13HE3_A/I indicates packaging: "A" denotes the base P/NHM3 variant (RoHS-compliant, AEC-Q101 qualified), and "I" specifies the delivery mode - 13-inch diameter plastic tape and reel, with a base quantity of 3500 units. This matches Vishay's official ordering code 3KASMC13AHM3_A/I. The 3KASMC13HE3_A/I is functionally identical to 3KASMC13AHM3_A/I; "E3" reflects Vishay's internal revision or traceability coding.
How does the thermal resistance of the 3KASMC13HE3_A/I affect PCB layout?
The 3KASMC13HE3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 77.5 °C/W, which assumes mounting on the minimum recommended pad layout per Vishay's DO-214AB outline. To avoid exceeding 185 °C junction temperature under continuous 6.0 W dissipation, designers must provide adequate copper area and thermal vias. The 3KASMC13HE3_A/I datasheet specifies exact pad dimensions - undersized layouts will increase RθJA and risk thermal runaway.
Can the 3KASMC13HE3_A/I replace older SMAJ or SMCJ series parts in existing designs?
The 3KASMC13HE3_A/I shares the same DO-214AB (SMC) footprint and electrical parameters (VWM, VBR, VC) as SMCJ13A, enabling drop-in replacement where 3000 W surge rating and AEC-Q101 qualification are required. However, it cannot directly replace SMAJ13A due to different package size (DO-214AC vs. DO-214AB). Always verify mechanical fit, thermal margin, and qualification alignment before substituting the 3KASMC13HE3_A/I in legacy designs.
3KASMC13HE3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 23.8V
- Current - Peak Pulse (10/1000µs):
- 126A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
3KASMC13HE3_A/I FAQ
1.How can I place an order for 3KASMC13HE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 3KASMC13HE3_A/I 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 3KASMC13HE3_A/I reliable?
The price and inventory of 3KASMC13HE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3KASMC13HE3_A/I is usually 5 days.
3.What payment methods are accepted for 3KASMC13HE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3KASMC13HE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3KASMC13HE3_A/I?
3KASMC13HE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3KASMC13HE3_A/I 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 3KASMC13HE3_A/I?
For technical support, including 3KASMC13HE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3KASMC13HE3_A/I requirements.
6.How does Aetrix verify that 3KASMC13HE3_A/I is sourced from the original manufacturer or authorized distributors?
All 3KASMC13HE3_A/I 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 3KASMC13HE3_A/I meets industry standards.
7.What is the process for return or replacement of 3KASMC13HE3_A/I?
All 3KASMC13HE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with 3KASMC13HE3_A/I, 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 3KASMC13HE3_A/I part is unused and in its original packaging.
Return procedure for 3KASMC13HE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3KASMC13HE3_A/I Tags
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