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Vishay General Semiconductor - Diodes Division 3KASMC36AHM3_A/I
- Part No.:
- 3KASMC36AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3KASMC36AHM3_A/I.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,363
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Product details
Overview
3KASMC36AHM3_A/I 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, 3000 W peak pulse power (10/1000 µs), 51.6 A peak surge current, and 58.1 V clamping voltage at IPPM - deployed for automotive power line and sensor signal line protection.
For engineers reviewing the 3KASMC36AHM3_A/I datasheet, 3KASMC36AHM3_A/I pinout, 3KASMC36AHM3_A/I application, or 3KASMC36AHM3_A/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, TJ = 185 °C operation, MSL Level 1 rating, and DO-214AB thermal performance under repetitive surge stress.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve stable clamping under high-temperature conditions up to 185 °C junction temperature, with low incremental surge resistance and fast response time critical for suppressing inductive switching transients. Its unidirectional architecture provides forward conduction path during overvoltage events while maintaining low leakage (<1 µA at VWM) at 25 °C and <20 µA at 150 °C.
The device operates within -65 °C to +185 °C junction/storage range, features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and meets UL 94 V-0 flammability requirements in its molded DO-214AB package. Thermal resistance is 77.5 °C/W (junction-to-ambient) and 18.3 °C/W (junction-to-leads) under defined mounting conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 40.0 V / 44.2 V at IT = 1 mA - ensures reliable breakdown threshold across process variation |
| PPPM | 3000 W (10/1000 µs waveform) - sustains high-energy transients without failure in automotive load-dump scenarios |
| VC @ IPPM | 58.1 V - clamping voltage at 51.6 A peak current, limiting downstream IC voltage stress |
| TJ max. | 185 °C - enables use in under-hood automotive environments without derating penalties |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
| MSL Level | Level 1 (J-STD-020) - supports standard SMT reflow without moisture sensitivity concerns |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, cathode indicated by color band; dimensions: 7.11 mm × 6.22 mm × 2.90 mm (L × W × H); RoHS-compliant, halogen-free, UL 94 V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal during clamping | Connected to protected circuit ground or low-side reference; carries full surge current during transient |
| Cathode | Reverse-biased terminal during normal operation | Connected to protected line (e.g., 12 V rail or sensor output); defines polarity and clamping direction |
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 operation supports placement near power electronics in engine control units and ADAS modules |
| Peak pulse power | 3000 W (10/1000 µs) handles ISO 7637-2 Pulse 5a load-dump surges without degradation |
| Clamping performance | 58.1 V VC at 51.6 A enables robust protection of 40 V-rated CAN transceivers and microcontrollers |
| Automotive qualification | AEC-Q101 qualified with MSL Level 1 and whisker-resistant matte tin plating per JESD 201 Class 2 |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against ISO 7637-2 load-dump transients up to 60 V/100 ms. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp overvoltage before it reaches DC/DC converters and MCU power inputs. Use Value: Limits peak rail voltage to ≤58.1 V during 3000 W surges, preventing latch-up or permanent damage to 40 V-input regulators. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors in motor drives exposed to inductive kickback. IC Role / Device Role / Timing Role: TVS connected across sensor output and ground to absorb fast-rising transients induced by nearby relay or solenoid switching. Use Value: Sub-1 ns response time and 58.1 V clamping protect 3.3 V or 5 V ADC front-ends from >1 kV spikes without signal distortion. |
| Telecom DC Power Input Protection | Computer Peripheral Port Protection |
Use Scenario: Securing 48 V PoE-powered network switches against lightning-induced surges on DC input lines. IC Role / Device Role / Timing Role: Primary TVS on main DC input rail upstream of hot-swap controllers and PMICs. Use Value: 3000 W rating and 185 °C TJ allow sustained operation in enclosed telecom cabinets with elevated ambient temperatures. |
Use Scenario: Shielding USB or HDMI port power pins in industrial PCs from ESD and cable discharge events. IC Role / Device Role / Timing Role: Unidirectional TVS placed on VBUS line to suppress ±15 kV contact ESD per IEC 61000-4-2 without affecting data integrity. Use Value: Low 1 µA IR at 36 V ensures minimal standby current draw while maintaining fast clamping for transient suppression. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/57T (Vishay) | Same DO-214AC (SMA) package; lower PPPM (400 W), higher RθJA (100 °C/W), VBR 40–44.4 V | Limited to lower-energy transients; unsuitable for load-dump; better for board-level ESD only | Select when space-constrained layouts require smaller footprint and surge energy is ≤400 W |
| 1.5KE36A (ON Semiconductor) | Through-hole DO-201AE package; same VWM/VBR range; 1500 W PPPM; no AEC-Q101 qualification | Not automotive-qualified; higher thermal mass but incompatible with automated SMT assembly | Choose for legacy through-hole designs where reflow compatibility and automotive compliance are not required |
Compared with SMAJ36A-E3/57T and 1.5KE36A, the 3KASMC36AHM3_A/I delivers 2× higher surge power handling than SMAJ36A and full SMT manufacturability plus AEC-Q101 validation-making it the preferred choice for new automotive and industrial power rail protection designs requiring 3000 W capability in DO-214AB.
Availability
3KASMC36AHM3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, telecom DC power inputs, and computer peripheral port protection requiring stable component supply and long-term lifecycle support.
Supply support for 3KASMC36AHM3_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 is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on high-reliability, high-temperature, and automotive-qualified components.
The 3KASMC series is designed specifically for high-energy transient suppression in harsh automotive and industrial environments, targeting applications demanding AEC-Q101 qualification, 185 °C operation, and 3000 W surge capability in surface-mount form.
FAQ
What is the clamping voltage of the 3KASMC36AHM3_A/I at its rated peak pulse current?
The 3KASMC36AHM3_A/I has a maximum clamping voltage (VC) of 58.1 V at its peak pulse current (IPPM) of 51.6 A, measured under the standardized 10/1000 µs waveform. This value ensures protected downstream components-such as 40 V-rated power management ICs-are held below destructive voltage thresholds during surge events. The 3KASMC36AHM3_A/I maintains this clamping performance across its qualified temperature range.
Is the 3KASMC36AHM3_A/I qualified for automotive applications?
Yes, the 3KASMC36AHM3_A/I is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. It supports junction temperatures up to 185 °C, passes MSL Level 1 reflow, and features whisker-resistant matte tin plating per JESD 201 Class 2. These attributes make the 3KASMC36AHM3_A/I suitable for engine control modules, body electronics, and ADAS systems where reliability under thermal and mechanical stress is mandatory.
What package type does the 3KASMC36AHM3_A/I use, and what are its key mechanical features?
The 3KASMC36AHM3_A/I uses the DO-214AB (SMC) surface-mount package, measuring 7.11 mm × 6.22 mm × 2.90 mm. Key mechanical features include UL 94 V-0 flammability-rated molding compound, cathode identification via color band, matte tin-plated leads compliant with J-STD-002 solderability standards, and optimized pad layout recommendations for thermal dissipation. The package supports automated pick-and-place and reflow assembly.
How does the 3KASMC36AHM3_A/I compare to other 36 V TVS diodes in terms of surge capability?
The 3KASMC36AHM3_A/I delivers 3000 W peak pulse power (10/1000 µs), exceeding common alternatives like SMAJ36A (400 W) and P6SMB36A (600 W). Its 51.6 A IPPM and 58.1 V VC enable robust protection against ISO 7637-2 Pulse 5a load-dump events. Unlike many 36 V TVS parts, the 3KASMC36AHM3_A/I sustains this performance at TJ = 185 °C without derating, making it uniquely suited for high-power automotive and industrial applications.
What is the reverse leakage current specification for the 3KASMC36AHM3_A/I at maximum operating temperature?
At TA = 25 °C, the 3KASMC36AHM3_A/I exhibits a maximum reverse leakage current (IR) of 1.0 µA at its 36 V stand-off voltage (VWM). At elevated temperature, IR rises to ≤20 µA at TJ = 150 °C - a value confirmed in the Vishay datasheet (Document Number: 89962). This controlled leakage ensures minimal power loss in always-on automotive modules while preserving clamping responsiveness during transients.
3KASMC36AHM3_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):
- 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)
3KASMC36AHM3_A/I FAQ
1.How can I place an order for 3KASMC36AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 3KASMC36AHM3_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 3KASMC36AHM3_A/I reliable?
The price and inventory of 3KASMC36AHM3_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 3KASMC36AHM3_A/I is usually 5 days.
3.What payment methods are accepted for 3KASMC36AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3KASMC36AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3KASMC36AHM3_A/I?
3KASMC36AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3KASMC36AHM3_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 3KASMC36AHM3_A/I?
For technical support, including 3KASMC36AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3KASMC36AHM3_A/I requirements.
6.How does Aetrix verify that 3KASMC36AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All 3KASMC36AHM3_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 3KASMC36AHM3_A/I meets industry standards.
7.What is the process for return or replacement of 3KASMC36AHM3_A/I?
All 3KASMC36AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with 3KASMC36AHM3_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 3KASMC36AHM3_A/I part is unused and in its original packaging.
Return procedure for 3KASMC36AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3KASMC36AHM3_A/I Tags
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