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Vishay General Semiconductor - Diodes Division 3KASMC16AHE3_B/H
- Part No.:
- 3KASMC16AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3KASMC16AHE3_B/H.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,847
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Product details
Overview
3KASMC16AHE3_B/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor in SMC (DO-214AB) package, rated for 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown (VBR), 3000 W peak pulse power (10/1000 μs), and 185 °C maximum junction temperature. It protects MOSFETs and ICs against inductive switching transients in automotive powertrain control modules.
For engineers reviewing the 3KASMC16AHE3_B/H datasheet, 3KASMC16AHE3_B/H pinout, 3KASMC16AHE3_B/H application, or 3KASMC16AHE3_B/H equivalent, key selection criteria include clamping voltage at rated surge current, thermal resistance (RθJA = 77.5 °C/W), AEC-Q101 qualification status, and unidirectional polarity compatibility with DC-biased signal lines.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve stable clamping under high-temperature operation up to TJ = 185 °C and meets MSL level 1 per J-STD-020 with 260 °C reflow peak. Its low incremental surge resistance and fast response time ensure effective suppression of 10/1000 μs transients without compromising system reliability.
The device delivers 26.0 V maximum clamping voltage (VC) at 115 A peak pulse current (IPPM), with typical VBR temperature coefficient of +0.081 %/°C and reverse leakage ≤1.0 μA at 16 V (TA = 25 °C). It is RoHS-compliant and qualified to AEC-Q101 for automotive-grade deployment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/typ/max) | 17.8 / 18.8 / 19.7 V at 1.0 mA - Ensures predictable turn-on threshold across temperature and process variation |
| PPPM | 3000 W (10/1000 μs) - Withstands high-energy surges common in automotive load-dump and inductive kick scenarios |
| VC @ IPPM | 26.0 V at 115 A - Limits voltage seen by protected downstream components during worst-case transient events |
| TJ max. | +185 °C - Enables reliable operation in under-hood automotive environments and industrial motor drives |
| RθJA | 77.5 °C/W - Defines thermal derating behavior on standard PCB pad layout; requires thermal management above 25 °C ambient |
| AEC-Q101 | Qualified - Validated for automotive applications including engine control units and battery management systems |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, cathode indicated by color band. Meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during clamping | Connected to protected line (e.g., 12 V rail or sensor output); conducts surge current to ground path |
| Cathode | Current exit terminal during clamping | Connected to system ground; forms low-impedance path for transient energy dissipation |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier design ensures stable VBR and low leakage over lifetime and temperature |
| High-temperature capability | TJ = 185 °C enables use in engine compartment electronics without derating penalties |
| Peak pulse power | 3000 W (10/1000 μs) supports robust protection against ISO 7637-2 Pulse 1, 2a, and 5a transients |
| Clamping performance | 26.0 V VC at 115 A provides tight voltage limiting for 16 V nominal systems with margin for ripple and tolerance |
| Manufacturing compliance | RoHS-compliant, MSL Level 1, JESD 201 Class 2 whisker-tested - suitable for automated SMT assembly |
Applications
| Automotive Powertrain Control | Industrial Motor Drive Protection |
|---|---|
Use Scenario: Protecting gate drivers and microcontrollers from inductive kickback during solenoid and relay switching in engine control units. IC Role / Device Role / Timing Role: Unidirectional TVS placed between high-side switch output and ground to clamp negative-going transients. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V logic interfaces while maintaining signal integrity under 185 °C under-hood conditions. |
Use Scenario: Safeguarding encoder feedback lines and PWM gate signals in variable-frequency drives exposed to EMI and switching noise. IC Role / Device Role / Timing Role: Standoff-rated TVS on differential analog inputs to suppress common-mode transients without affecting 1 MHz bandwidth. Use Value: Maintains ±1% accuracy in position sensing by limiting clamped voltage to 26.0 V, well below IC absolute maximum ratings. |
| Automotive Body Electronics | Telecom Power Interface |
Use Scenario: Shielding LIN bus transceivers and LED driver ICs from load-dump events in door module and lighting control units. IC Role / Device Role / Timing Role: Unidirectional TVS connected between LIN line and chassis ground to absorb 3000 W pulses without forward conduction. Use Value: Enables uninterrupted communication during ISO 16750-2 load-dump tests (14 V → 35 V, 1 s) due to 16 V VWM and 26.0 V VC. |
Use Scenario: Protecting PoE-powered Ethernet PHYs and DC-DC converters from lightning-induced surges on 48 V input rails. IC Role / Device Role / Timing Role: Primary-level TVS on secondary-side 12 V distribution bus feeding telecom baseband processors. Use Value: Survives IEC 61000-4-5 10/700 μs surges up to 2 kV thanks to low Rsurge and 3000 W PPPM rating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16A-E3/5AT | Lower PPPM (400 W), same VWM (16 V), higher VC (26.0 V), SMC package, AEC-Q101 not specified | Not qualified for automotive under-hood use; limited to consumer/industrial board-level protection | Select when cost sensitivity outweighs surge energy requirements and AEC-Q101 is not mandated |
| SMCJ16AHE3_A/H | Same VWM (16 V), identical SMC package, 1500 W PPPM (half the rating), AEC-Q101 qualified, VF = 3.5 V at 100 A | Insufficient for ISO 7637-2 Pulse 5a; suitable only for lower-energy transients like ESD or EFT | Choose if system-level testing confirms 1500 W is sufficient and thermal budget allows higher clamping margin |
Compared with SMAJ16A-E3/5AT and SMCJ16AHE3_A/H, the 3KASMC16AHE3_B/H delivers double the peak pulse power (3000 W vs. 1500/400 W) and guaranteed AEC-Q101 qualification-critical for automotive powertrain and body control modules requiring sustained high-temperature reliability.
Availability
3KASMC16AHE3_B/H is available at Aetrix Electronics and suitable for automotive powertrain control, industrial motor drive protection, and telecom power interface applications requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for 3KASMC16AHE3_B/H 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 targets high-energy transient suppression in harsh environments, specifically engineered for AEC-Q101 compliance, 185 °C operation, and robust 3000 W surge handling in automotive and industrial power systems.
FAQ
What is the clamping voltage of the 3KASMC16AHE3_B/H at its rated peak pulse current?
The 3KASMC16AHE3_B/H has a maximum clamping voltage (VC) of 26.0 V at 115 A peak pulse current (IPPM), measured with a 10/1000 μs waveform. This value is confirmed in the Electrical Characteristics table of Vishay document 88480 and defines the upper voltage limit imposed on protected circuitry during surge events. The 3KASMC16AHE3_B/H maintains this clamping performance across its full operating temperature range.
Is the 3KASMC16AHE3_B/H qualified to AEC-Q101, and what does that mean for automotive use?
Yes, the 3KASMC16AHE3_B/H is AEC-Q101 qualified, as stated in the Mechanical Data section and Ordering Information table of Vishay document 88480. This qualification validates its reliability for automotive applications including powertrain, body electronics, and chassis systems. The 3KASMC16AHE3_B/H undergoes stress testing for temperature cycling, humidity, and surge endurance-ensuring robustness in under-hood and other demanding vehicle environments.
What package type and mounting specifications apply to the 3KASMC16AHE3_B/H?
The 3KASMC16AHE3_B/H uses the SMC (DO-214AB) surface-mount package with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. Its recommended mounting pad layout is defined in the Package Outline Dimensions drawing (Document 88480, page 4), and it meets MSL Level 1 per J-STD-020 with a 260 °C reflow peak. The cathode is marked by a visible color band on the body.
How does the 3KASMC16AHE3_B/H compare to standard SMAJ or SMCJ series TVS diodes?
The 3KASMC16AHE3_B/H offers 3000 W peak pulse power-double that of the SMCJ16AHE3_A/H (1500 W) and nearly eight times that of the SMAJ16A-E3/5AT (400 W)-while maintaining identical 16 V VWM and SMC packaging. Unlike those alternatives, the 3KASMC16AHE3_B/H is explicitly AEC-Q101 qualified and rated for TJ = 185 °C, making it uniquely suited for high-energy, high-temperature automotive transients where others would fail or require parallel devices.
What is the thermal resistance and power derating behavior of the 3KASMC16AHE3_B/H?
The 3KASMC16AHE3_B/H has a typical junction-to-ambient thermal resistance (RθJA) of 77.5 °C/W on the minimum recommended pad layout. Its steady-state power dissipation (PD) is 6.0 W at TL = 75 °C, and it must be derated linearly above TA = 25 °C per Figure 2 in Vishay document 88480. At 100 °C ambient, usable PD drops to approximately 3.2 W, requiring careful PCB thermal design for continuous operation.
3KASMC16AHE3_B/H 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):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 115A
- 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)
3KASMC16AHE3_B/H FAQ
1.How can I place an order for 3KASMC16AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 3KASMC16AHE3_B/H 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 3KASMC16AHE3_B/H reliable?
The price and inventory of 3KASMC16AHE3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3KASMC16AHE3_B/H is usually 5 days.
3.What payment methods are accepted for 3KASMC16AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3KASMC16AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3KASMC16AHE3_B/H?
3KASMC16AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3KASMC16AHE3_B/H 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 3KASMC16AHE3_B/H?
For technical support, including 3KASMC16AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3KASMC16AHE3_B/H requirements.
6.How does Aetrix verify that 3KASMC16AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All 3KASMC16AHE3_B/H 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 3KASMC16AHE3_B/H meets industry standards.
7.What is the process for return or replacement of 3KASMC16AHE3_B/H?
All 3KASMC16AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with 3KASMC16AHE3_B/H, 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 3KASMC16AHE3_B/H part is unused and in its original packaging.
Return procedure for 3KASMC16AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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