My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 3KASMC36AHE3_A/H
- Part No.:
- 3KASMC36AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3KASMC36AHE3_A/H.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,027
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
3KASMC36AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, rated for 36 V stand-off voltage, 40.0–44.2 V breakdown at 1 mA, 58.1 V clamping voltage at 51.6 A peak pulse current, and 3000 W peak pulse power with 10/1000 μs waveform-designed for automotive-grade overvoltage protection of power rails and signal lines in engine control units.
For engineers reviewing the 3KASMC36AHE3_A/H datasheet, 3KASMC36AHE3_A/H pinout, 3KASMC36AHE3_A/H application, or 3KASMC36AHE3_A/H equivalent, key selection criteria include AEC-Q101 qualification, TJ = 185 °C maximum junction temperature, MSL Level 1 rating, uni-directional polarity, and DO-214AB mechanical compatibility with high-reliability automotive PCB layouts.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology to achieve low incremental surge resistance and fast response time under transient stress. Its clamping behavior is characterized by a 58.1 V maximum VC at IPPM = 51.6 A (10/1000 μs), with thermal resistance RθJA = 77.5 °C/W and RθJL = 18.3 °C/W enabling stable operation up to 185 °C junction temperature.
The device operates exclusively in uni-directional mode with cathode band marking, supports 200 A non-repetitive forward surge current (8.3 ms half-sine), and meets JESD201 Class 2 whisker resistance and UL 94 V-0 flammability requirements-making it suitable for under-hood automotive environments where thermal cycling and mechanical robustness are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC bias margin for protected circuitry. |
| VBR (min/max) | 40.0 V / 44.2 V at IT = 1 mA - Confirmed breakdown range ensures predictable turn-on threshold across production lots. |
| VC @ IPPM | 58.1 V at 51.6 A - Clamping voltage during 10/1000 μs surge; determines maximum voltage seen by downstream ICs during ESD/EFT events. |
| PPPM | 3000 W - Peak pulse power handling capability; enables suppression of high-energy transients like load dump or inductive kick. |
| TJ max. | +185 °C - Enables use in under-hood automotive applications without derating at elevated ambient temperatures. |
| AEC-Q101 | Qualified - Validated for automotive electronic systems per stress test requirements including HTGB, HTRB, and TCT. |
| Package | DO-214AB (SMC) - Standardized surface-mount outline with 0.305–0.320 inch body length; compatible with automated placement and reflow. |
Pinout & Package
DO-214AB (SMC) package: molded epoxy case with matte tin-plated leads, cathode indicated by color band on one end. Leads conform to J-STD-002 and JESD22-B102 solderability standards; HM3 suffix denotes JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during positive transients when used in uni-directional configuration. |
| Cathode | Clamping terminal | Marked by color band; connected to higher-potential rail (e.g., battery+); initiates avalanche breakdown when reverse voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier structure reduces leakage drift and improves long-term reliability under thermal stress. |
| MSL Level 1 | Rated for unlimited floor life at ≤30 °C/60 % RH; supports standard SMT reflow without baking preconditioning. |
| Low RSURGE | Minimizes voltage overshoot during fast-rising transients (<1 ns rise time), improving protection fidelity for sensitive microcontrollers. |
| UL 94 V-0 molding | Flame-retardant encapsulation meets automotive safety standards for component-level fire propagation resistance. |
| 200 A IFSM | Withstands single 8.3 ms half-sine surge without degradation-critical for alternator load-dump immunity in 12 V systems. |
Applications
| Engine Control Unit (ECU) Power Input | Automotive Sensor Signal Line Protection |
|---|---|
Use Scenario: Protects 12 V supply rail of engine control modules against ISO 7637-2 Pulse 5a (load dump) transients up to 60 V. IC Role / Device Role / Timing Role: Uni-directional TVS clamps reverse surge energy while allowing normal forward-biased operation of upstream rectifiers. Use Value: Limits peak rail voltage to ≤58.1 V during 3000 W surges, preventing damage to MCU power management ICs and CAN transceivers. |
Use Scenario: Shields analog output lines of pressure/temperature sensors from ESD and cable discharge events in chassis harnesses. IC Role / Device Role / Timing Role: Fast-response clamping element placed adjacent to connector interface to absorb sub-100 ns transients before reaching ADC input stages. Use Value: Maintains signal integrity below 100 mV perturbation during ±8 kV contact ESD (IEC 61000-4-2), preserving sensor accuracy. |
| Body Control Module (BCM) LIN Bus Line | Automotive Lighting Driver Output |
Use Scenario: Installed on LIN bus termination to suppress coupling noise from adjacent high-current actuators (e.g., window lift motors). IC Role / Device Role / Timing Role: Low-capacitance uni-directional suppressor referenced to ground, minimizing signal distortion on 19.2 kbps serial bus. Use Value: Delivers <10 pF junction capacitance at zero bias, ensuring LIN timing margins remain intact during transient suppression. |
Use Scenario: Safeguards LED driver outputs against inductive kickback when driving high-side switched headlamp loads. IC Role / Device Role / Timing Role: High-power TVS placed between driver output and ground to clamp flyback voltage spikes exceeding 40 V. Use Value: Absorbs 3000 W pulses without failure, enabling use of cost-effective N-channel MOSFETs instead of more expensive high-VDS alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A | Same DO-214AC (SMA) package; lower PPPM = 400 W; VBR = 40–44.2 V; TJ max = 150 °C | Not AEC-Q101 qualified; limited to consumer/industrial use; insufficient for automotive load dump | Select only for cost-sensitive non-automotive designs where 3000 W surge immunity is not required. |
| SMCJ36A | Same DO-214AB (SMC) package; identical PPPM = 3000 W and VBR range; TJ max = 175 °C; AEC-Q101 qualified | Higher RθJA = 85 °C/W vs. 77.5 °C/W; slightly reduced thermal margin at high ambient | Valid alternative when 3KASMC36AHE3_A/H is unavailable; verify thermal layout meets derating curve for target ambient. |
Compared with SMAJ36A and SMCJ36A, the 3KASMC36AHE3_A/H offers superior thermal capability (TJ = 185 °C), tighter thermal resistance (RθJA = 77.5 °C/W), and full AEC-Q101 compliance-making it the preferred choice for under-hood automotive deployments requiring extended lifetime reliability.
Availability
3KASMC36AHE3_A/H is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, lighting driver circuits, and sensor interface protection requiring stable component supply across multi-year production programs.
Supply support for 3KASMC36AHE3_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 devices, and optoelectronics with emphasis on high-reliability and automotive-grade performance.
The 3KASMC series was engineered specifically for AEC-Q101-compliant transient suppression in harsh automotive environments-delivering enhanced thermal stability, surge robustness, and long-term parametric consistency under thermal cycling.
FAQ
What is the clamping voltage of the 3KASMC36AHE3_A/H at its rated peak pulse current?
The 3KASMC36AHE3_A/H has a maximum clamping voltage (VC) of 58.1 V at 51.6 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The 3KASMC36AHE3_A/H maintains this clamping performance across its full operating temperature range up to +185 °C junction temperature.
Is the 3KASMC36AHE3_A/H qualified for automotive applications?
Yes, the 3KASMC36AHE3_A/H is AEC-Q101 qualified and designed for automotive use. It passes all required stress tests-including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling (TCT)-and is rated for operation from –65 °C to +185 °C. The 3KASMC36AHE3_A/H is commonly deployed in engine control units, body control modules, and lighting systems where automotive-grade reliability is mandatory.
What package type does the 3KASMC36AHE3_A/H use, and what are its key mechanical features?
The 3KASMC36AHE3_A/H uses the DO-214AB (SMC) surface-mount package with dimensions of 0.305–0.320 inch in length and 0.220–0.246 inch in width. Its matte tin-plated leads meet J-STD-002 and JESD22-B102 solderability standards, and the HM3 suffix confirms JESD201 Class 2 whisker resistance. The cathode is marked by a visible color band, and the molding compound complies with UL 94 V-0 flammability requirements.
How does the 3KASMC36AHE3_A/H compare to standard SMAJ-series TVS diodes in terms of surge capability?
The 3KASMC36AHE3_A/H delivers 3000 W peak pulse power (PPPM) with a 10/1000 μs waveform-seven times higher than the 400 W rating of SMAJ36A. It also supports a higher junction temperature (185 °C vs. 150 °C) and is AEC-Q101 qualified, whereas SMAJ36A is intended for commercial/industrial use only. The 3KASMC36AHE3_A/H's DO-214AB package provides greater thermal mass and lower RθJA (77.5 °C/W), enhancing sustained surge handling in automotive applications.
What is the maximum reverse leakage current of the 3KASMC36AHE3_A/H at its stand-off voltage?
The 3KASMC36AHE3_A/H exhibits a maximum reverse leakage current (IR) of 1.0 μA at its 36 V stand-off voltage (VWM) and 20 μA at TJ = 150 °C. These values ensure minimal standby power loss in always-on automotive circuits and maintain signal integrity on low-current sensor lines. The low leakage is maintained across the full specified temperature range due to optimized junction passivation in the 3KASMC36AHE3_A/H design.
3KASMC36AHE3_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):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 58.1V
- Current - Peak Pulse (10/1000µs):
- 51.6A
- 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)
3KASMC36AHE3_A/H FAQ
1.How can I place an order for 3KASMC36AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 3KASMC36AHE3_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 3KASMC36AHE3_A/H reliable?
The price and inventory of 3KASMC36AHE3_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 3KASMC36AHE3_A/H is usually 5 days.
3.What payment methods are accepted for 3KASMC36AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3KASMC36AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3KASMC36AHE3_A/H?
3KASMC36AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3KASMC36AHE3_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 3KASMC36AHE3_A/H?
For technical support, including 3KASMC36AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3KASMC36AHE3_A/H requirements.
6.How does Aetrix verify that 3KASMC36AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All 3KASMC36AHE3_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 3KASMC36AHE3_A/H meets industry standards.
7.What is the process for return or replacement of 3KASMC36AHE3_A/H?
All 3KASMC36AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with 3KASMC36AHE3_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 3KASMC36AHE3_A/H part is unused and in its original packaging.
Return procedure for 3KASMC36AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3KASMC36AHE3_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 …
