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Vishay General Semiconductor - Diodes Division 3KASMC13AHE3_B/I
- Part No.:
- 3KASMC13AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3KASMC13AHE3_B/I.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,142
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Product details
Overview
3KASMC13AHE3_B/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-reliability clamping of inductive switching transients and ESD events. It features 13 V stand-off voltage (VWM), 15.2 V nominal breakdown voltage (VBR), 3000 W peak pulse power (10/1000 μs), 140 V maximum clamping voltage at 140 A IPPM, and operates up to TJ = 185 °C - ideal for automotive power rail and sensor line protection.
For engineers reviewing the 3KASMC13AHE3_B/I datasheet, 3KASMC13AHE3_B/I pinout, 3KASMC13AHE3_B/I application, or 3KASMC13AHE3_B/I equivalent, key selection criteria include unidirectional polarity, SMC package thermal performance (RθJL = 18.3 °C/W), AEC-Q101 qualification status, clamping ratio (VC/VBR ≈ 9.2), and junction temperature derating above 25 °C.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for high-temperature stability and low incremental surge resistance. Its unidirectional architecture provides fast response time (<1 ns) and excellent clamping linearity under 10/1000 μs surge conditions.
Rated for TJ = −65 °C to +185 °C, it meets MSL Level 1 (260 °C reflow) and supports automotive-grade reliability with AEC-Q101 qualification. The SMC package enables robust thermal dissipation on standard PCB layouts without heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (nom) | 15.2 V at 1.0 mA - precise breakdown threshold enabling tight overvoltage margin control |
| VC @ IPPM | 21.5 V at 140 A - clamping voltage during 3000 W surge, limiting downstream IC stress |
| PPPM | 3000 W (10/1000 μs) - handles high-energy transients from automotive load dumps and inductive kickback |
| TJ max | +185 °C - supports operation in engine bay and under-hood environments without derating |
| IFSM | 200 A (8.3 ms half-sine) - withstands repetitive surge events in industrial motor drives |
| Polarity | Unidirectional - protects DC rails where reverse conduction must be blocked |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, UL 94 V-0 molding compound, cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during clamping | Connected to protected line (e.g., 12 V rail); conducts surge current to ground when VC exceeded |
| Cathode | Current exit point during clamping | Connected to system ground; defines unidirectional conduction path and sets VWM reference |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier process ensures stable VBR over lifetime and temperature cycling |
| AEC-Q101 qualification | Validated for automotive applications including powertrain and ADAS sensor interfaces |
| Low Rsurge | Minimizes voltage overshoot during fast transients, improving clamping accuracy |
| MSL Level 1 rating | Enables standard SMT reflow without moisture sensitivity concerns or baking requirements |
| High TJ capability | Eliminates need for thermal derating in under-hood designs up to +155 °C ambient |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump transients (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Primary clamping device placed between power input and DC-DC converter input stage. Use Value: Limits voltage to ≤21.5 V during 3000 W surges, preventing damage to downstream LDOs and microcontrollers. | Use Scenario: Safeguarding analog outputs of pressure/temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Unidirectional TVS on 4–20 mA loop supply line to absorb field-induced surges. Use Value: Maintains signal integrity with <2 μA leakage at 13 V, ensuring mA-level accuracy remains unaffected. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Guarding PoE-powered network switches against lightning-induced surges on 48 V input rails. IC Role / Device Role / Timing Role: First-stage transient suppressor upstream of primary DC-DC conversion. Use Value: Clamps 10/1000 μs transients within 1 ns, preserving isolation barrier integrity and meeting IEC 61000-4-5 Level 4. | Use Scenario: Suppressing back-EMF spikes from brushed DC motors in smart home appliances (e.g., vacuum cleaners). IC Role / Device Role / Timing Role: Parallel-mounted across motor terminals to clamp inductive kickback. Use Value: Withstands 200 A single-half-sine surge (8.3 ms), extending motor driver MOSFET lifetime and reducing EMI. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ13A-E3/5A (Vishay) | Same SMC package, lower PPPM (400 W), higher VBR tolerance (±5 % vs ±3.3 %), no AEC-Q101 listing | Not qualified for automotive; suitable only for consumer/industrial non-critical rails | Select when cost sensitivity outweighs surge energy requirement and AEC-Q101 compliance is unnecessary |
| 1.5KE13A (ON Semiconductor) | Through-hole DO-201 package, identical VWM/VBR, 1500 W PPPM, higher RθJA (65 °C/W), no AEC-Q101 | Requires board real estate and wave soldering; unsuitable for high-density automotive PCBs | Choose only for legacy through-hole designs where SMT migration is not feasible |
Compared with SMAJ13A-E3/5A and 1.5KE13A, the 3KASMC13AHE3_B/I delivers 7.5× higher surge power handling, certified automotive qualification, and superior thermal coupling via SMC's low RθJL (18.3 °C/W), enabling compact placement near high-risk nodes without thermal compromise.
Availability
3KASMC13AHE3_B/I is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC input surge suppression requiring stable component supply and long-term lifecycle assurance.
Supply support for 3KASMC13AHE3_B/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 is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and TVS devices with emphasis on reliability, high-temperature operation, and automotive qualification.
The 3KASMC series is engineered specifically for high-energy transient suppression in harsh environments, targeting AEC-Q101-compliant automotive subsystems and industrial equipment exposed to repetitive inductive switching events.
FAQ
What is the clamping voltage of the 3KASMC13AHE3_B/I at its rated peak pulse current?
The 3KASMC13AHE3_B/I has a maximum clamping voltage (VC) of 21.5 V at its peak pulse current (IPPM) of 140 A, measured under the standard 10/1000 μs waveform. This value ensures downstream components experience minimal overvoltage stress during surge events. The 3KASMC13AHE3_B/I maintains this clamping performance across its full operating temperature range, supporting reliable protection in demanding applications like automotive power distribution.
Is the 3KASMC13AHE3_B/I AEC-Q101 qualified?
Yes, the 3KASMC13AHE3_B/I is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and documentation in datasheet 88480. This qualification covers stress tests including HTGB, AC/DC life test, and temperature cycling, validating suitability for automotive applications such as body control modules and sensor front-ends. The 3KASMC13AHE3_B/I meets all required failure rate and reliability thresholds defined in the AEC-Q101 standard.
What is the thermal resistance from junction to leads (RθJL) for the 3KASMC13AHE3_B/I?
The thermal resistance from junction to leads (RθJL) for the 3KASMC13AHE3_B/I is 18.3 °C/W, per Vishay's thermal characteristics table. This low value reflects efficient heat transfer from the silicon die to the PCB copper through the SMC package leads. When mounted on recommended pad layout, the 3KASMC13AHE3_B/I achieves effective thermal management without heatsinks - critical for sustained operation in high-ambient environments like engine compartments.
Does the 3KASMC13AHE3_B/I have unidirectional or bidirectional polarity?
The 3KASMC13AHE3_B/I is unidirectional only, as explicitly stated in the Vishay datasheet features section and confirmed by its electrical symbol and marking code "3BG". It functions as a single-polarity clamp, conducting surge current from anode to cathode when reverse-biased beyond VBR. This makes the 3KASMC13AHE3_B/I appropriate for protecting DC power lines but unsuitable for AC signal line protection without additional circuitry.
What is the maximum peak forward surge current (IFSM) rating for the 3KASMC13AHE3_B/I?
The 3KASMC13AHE3_B/I has a maximum non-repetitive peak forward surge current (IFSM) rating of 200 A, specified for an 8.3 ms single half-sine waveform. This rating enables the device to survive high-current inductive switching events common in motor drive and relay circuits. The 3KASMC13AHE3_B/I sustains this surge capability across its full operating temperature range, supporting robust protection in industrial automation systems.
3KASMC13AHE3_B/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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 140A
- 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 (SMC)
3KASMC13AHE3_B/I FAQ
1.How can I place an order for 3KASMC13AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 3KASMC13AHE3_B/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 3KASMC13AHE3_B/I reliable?
The price and inventory of 3KASMC13AHE3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3KASMC13AHE3_B/I is usually 5 days.
3.What payment methods are accepted for 3KASMC13AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3KASMC13AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3KASMC13AHE3_B/I?
3KASMC13AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3KASMC13AHE3_B/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 3KASMC13AHE3_B/I?
For technical support, including 3KASMC13AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3KASMC13AHE3_B/I requirements.
6.How does Aetrix verify that 3KASMC13AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All 3KASMC13AHE3_B/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 3KASMC13AHE3_B/I meets industry standards.
7.What is the process for return or replacement of 3KASMC13AHE3_B/I?
All 3KASMC13AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with 3KASMC13AHE3_B/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 3KASMC13AHE3_B/I part is unused and in its original packaging.
Return procedure for 3KASMC13AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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