My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 3KASMC16AHE3_A/H
- Part No.:
- 3KASMC16AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3KASMC16AHE3_A/H.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,274
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
3KASMC16AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® Transient Voltage Suppressor (TVS) diode in DO-214AB (SMC) package, rated for 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown (VBR), 3000 W peak pulse power (10/1000 μs), 115 A peak surge current (IPPM), and 26.0 V clamping voltage (VC) - deployed for automotive power-line and sensor-line surge protection.
For engineers reviewing the 3KASMC16AHE3_A/H datasheet, 3KASMC16AHE3_A/H pinout, 3KASMC16AHE3_A/H application, or 3KASMC16AHE3_A/H equivalent, key selection criteria include AEC-Q101 qualification, TJ = 185 °C operation, MSL Level 1 reflow compatibility, uni-directional polarity, and DO-214AB thermal performance under high-reliability transient conditions.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping under repetitive transients while maintaining low incremental surge resistance and fast response time (<1 ns). Its junction passivation enables reliable operation up to 185 °C junction temperature, meeting automotive-grade thermal stress requirements.
The device operates exclusively in unidirectional mode with cathode band marking, supports 200 A non-repetitive forward surge (IFSM), and exhibits 77.5 °C/W junction-to-ambient thermal resistance when mounted on minimum recommended pad layout per JEDEC standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 17.8 V / 19.7 V at 1 mA - guaranteed breakdown threshold defining turn-on precision |
| PPPM | 3000 W (10/1000 μs) - peak transient energy absorption capacity without failure |
| VC @ IPPM | 26.0 V - clamped voltage during full-rated 115 A surge, limiting downstream IC stress |
| IR @ VWM | 1.0 μA - ultra-low leakage ensuring minimal standby power loss in battery systems |
| TJ max. | 185 °C - extended junction temperature rating enabling under-hood automotive use |
| Package | DO-214AB (SMC) - industry-standard surface-mount outline with 7.11 mm x 6.60 mm footprint |
Pinout & Package
DO-214AB (SMC) package with two terminals: anode and cathode. Cathode identified by molded color band. Matte tin-plated leads meet J-STD-002 solderability and JESD22-B102 whisker resistance (Class 2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to protected line ground or low-side reference | Enables uni-directional clamping from line-to-ground during positive transients |
| Cathode | Current exit point in forward bias; marked by color band; connected to protected signal/power rail | Defines polarity orientation - must be tied to higher-potential node for correct transient shunting |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTGB, TCT, HTRB, and ESD |
| Junction passivation | Stabilizes leakage and breakdown characteristics across temperature and lifetime in harsh environments |
| MSL Level 1 (260 °C peak) | Enables single-pass lead-free reflow without popcorn effect or delamination risk |
| Low RSURGE | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a/5a) |
| 185 °C TJ capability | Supports placement near heat sources (e.g., engine control units, power converters) without derating |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump (ISO 16750-2) and alternator transients. IC Role / Device Role / Timing Role: Uni-directional TVS placed between power rail and chassis ground to clamp surges above 16 V. Use Value: Limits peak voltage to 26.0 V during 3000 W transients, preventing damage to MCU power supplies and CAN transceivers. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Line-to-ground TVS on 0–5 V or 4–20 mA signal paths exposed to EMI and relay switching noise. Use Value: Sub-1 ns response and 1.0 μA leakage preserve signal integrity and minimize offset drift in precision measurement circuits. |
| Telecom DC Power Feeds | Consumer Power Adapter Input Stage |
Use Scenario: Secondary-side overvoltage suppression in PoE-powered network switches and base stations. IC Role / Device Role / Timing Role: Standoff-rated TVS on 48 V DC input rails to absorb induced lightning surges and hot-swap spikes. Use Value: 3000 W rating handles multi-pulse events per IEC 61000-4-5; 185 °C rating ensures reliability in sealed enclosures. |
Use Scenario: Input-stage transient suppression in wall-mounted AC/DC adapters for smart home devices. IC Role / Device Role / Timing Role: Uni-directional clamping element between rectified DC bus and primary-side controller ground. Use Value: MSL Level 1 compliance allows direct integration into high-volume SMT lines without moisture preconditioning. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16A | Same DO-214AC (SMA) package; lower PPPM (400 W); VBR = 17.8–19.7 V; TJ max = 150 °C | Limited to consumer-grade or non-automotive industrial use due to lower power and temperature rating | Select when cost sensitivity outweighs automotive qualification and 3000 W surge margin |
| SMCJ16A | Same DO-214AB (SMC) package; identical VWM/VBR/VC specs; same 3000 W rating; AEC-Q101 qualified; TJ max = 175 °C | Marginally lower thermal endurance - not rated for sustained 185 °C operation in under-hood zones | Prefer when full 185 °C capability is unnecessary but DO-214AB footprint and AEC-Q101 are required |
Compared with SMAJ16A and SMCJ16A, the 3KASMC16AHE3_A/H delivers superior high-temperature robustness (185 °C vs. 150/175 °C) and maintains full 3000 W surge capability under extended thermal stress - critical for automotive front-end and industrial edge computing deployments.
Availability
3KASMC16AHE3_A/H is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and telecom DC power system integration requiring stable component supply, AEC-Q101 compliance, and high-temperature transient resilience.
Supply support for 3KASMC16AHE3_A/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 is a global leader in discrete semiconductors, specializing in diodes, rectifiers, TVS, MOSFETs, and optoelectronics with emphasis on reliability and application-specific performance.
The 3KASMC series is engineered for high-reliability transient suppression in automotive and industrial environments, combining PAR® technology with AEC-Q101 validation and extended temperature operation.
FAQ
What is the clamping voltage of the 3KASMC16AHE3_A/H under full-rated surge current?
The 3KASMC16AHE3_A/H has a maximum clamping voltage (VC) of 26.0 V when subjected to its rated peak pulse current (IPPM) of 115 A using a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and ensures predictable overvoltage limiting for downstream circuitry such as microcontrollers or CAN transceivers. The 3KASMC16AHE3_A/H maintains this clamping performance across its full operating temperature range.
Is the 3KASMC16AHE3_A/H suitable for automotive applications?
Yes, the 3KASMC16AHE3_A/H is AEC-Q101 qualified and rated for junction temperatures up to 185 °C, making it suitable for under-hood and powertrain-related automotive applications. It meets MSL Level 1 reflow requirements and is designed for transient immunity per ISO 7637-2 and ISO 16750-2. The 3KASMC16AHE3_A/H is explicitly validated for use in ECUs, body control modules, and sensor interfaces where high-reliability surge suppression is mandatory.
What does the "_A/H" suffix indicate in 3KASMC16AHE3_A/H?
The "_A/H" suffix in 3KASMC16AHE3_A/H denotes the packaging configuration: "H" specifies 7-inch diameter plastic tape and reel with a base quantity of 850 units. The "A" indicates revision level A of the HM3-compliant base part, confirming RoHS compliance and AEC-Q101 qualification. The full part number 3KASMC16AHE3_A/H identifies a specific manufacturing release with traceable process controls and material categorization per Vishay Doc. #99912.
How does the thermal resistance of the 3KASMC16AHE3_A/H affect PCB layout?
The 3KASMC16AHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 77.5 °C/W when mounted on the minimum recommended pad layout per Vishay's DO-214AB guidelines. To maintain safe operation at full power dissipation, PCB copper area and via count must follow the specified mounting pad dimensions (0.305 × 0.126 inches) and thermal relief patterns. The 3KASMC16AHE3_A/H requires no heatsink but benefits from internal layer copper pours connected to both terminals for improved thermal conduction.
Does the 3KASMC16AHE3_A/H support bi-directional transient suppression?
No, the 3KASMC16AHE3_A/H is a unidirectional TVS diode only, as confirmed in the Vishay datasheet section "FEATURES" and "PRIMARY CHARACTERISTICS". It provides clamping for positive transients relative to ground (anode grounded, cathode to protected line) and does not suppress negative-going surges. For bidirectional protection, a separate device such as the 3KASMC16CA or dual-diode array would be required. The 3KASMC16AHE3_A/H polarity is marked by a cathode band and must be oriented accordingly in circuit layout.
3KASMC16AHE3_A/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:
- Obsolete
- 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 (SMCJ)
3KASMC16AHE3_A/H FAQ
1.How can I place an order for 3KASMC16AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 3KASMC16AHE3_A/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_A/H reliable?
The price and inventory of 3KASMC16AHE3_A/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_A/H is usually 5 days.
3.What payment methods are accepted for 3KASMC16AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3KASMC16AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3KASMC16AHE3_A/H?
3KASMC16AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3KASMC16AHE3_A/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_A/H?
For technical support, including 3KASMC16AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3KASMC16AHE3_A/H requirements.
6.How does Aetrix verify that 3KASMC16AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All 3KASMC16AHE3_A/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_A/H meets industry standards.
7.What is the process for return or replacement of 3KASMC16AHE3_A/H?
All 3KASMC16AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with 3KASMC16AHE3_A/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_A/H part is unused and in its original packaging.
Return procedure for 3KASMC16AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3KASMC16AHE3_A/H Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
