My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 3KASMC36AHM3/57T
- Part No.:
- 3KASMC36AHM3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3KASMC36AHM3/57T.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,867
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
3KASMC36AHM3/57T from Vishay General Semiconductor is a unidirectional surface-mount PAR® Transient Voltage Suppressor (TVS) designed for high-energy surge clamping in automotive and industrial power rails. It delivers 3000 W peak pulse power (10/1000 μs), clamps at 58.1 V under 51.6 A surge current, and operates up to 185 °C junction temperature - enabling robust protection of 36 V nominal systems such as automotive ECUs and industrial motor drives.
For engineers reviewing the 3KASMC36AHM3/57T datasheet, 3KASMC36AHM3/57T pinout, 3KASMC36AHM3/57T application, or 3KASMC36AHM3/57T equivalent, key selection criteria include its DO-214AB (SMC) package compatibility, AEC-Q101 qualification, 36 V stand-off voltage, low 1.0 μA leakage at VWM, and thermal resistance of 77.5 °C/W (junction-to-ambient).
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for high-temperature stability and fast transient response. Its unidirectional architecture provides low forward voltage (3.5 V at 100 A) and excellent clamping ratio (VC/VBR ≈ 1.45), ensuring reliable overvoltage suppression during load dump or inductive switching events.
Rated for TJ = −65 °C to +185 °C and qualified per AEC-Q101, the 3KASMC36AHM3/57T supports automotive-grade reliability under harsh thermal cycling and humidity conditions. Its MSL Level 1 rating and matte tin-plated leads ensure compatibility with standard reflow soldering processes up to 260 °C peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before clamping begins; matches 36 V automotive battery systems. |
| VBR (min/max) | 40.0 V / 44.2 V at 1.0 mA - Ensures precise breakdown threshold with tight 10.5% tolerance for predictable protection onset. |
| PPPM | 3000 W (10/1000 μs) - Handles high-energy transients like ISO 7637-2 Pulse 5a without degradation. |
| IPPM | 51.6 A - Peak surge current capability at clamping voltage; enables effective energy diversion away from protected ICs. |
| VC | 58.1 V - Clamping voltage at IPPM; limits downstream voltage stress to safe levels for 40 V-rated components. |
| TJ max. | +185 °C - Supports operation in under-hood environments and high-power industrial enclosures without derating. |
| RθJA | 77.5 °C/W - Defines thermal performance on standard PCB pad layout; informs heatsinking requirements for sustained surge duty. |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, cathode indicated by color band. Dimensions: 7.11 mm × 6.60 mm × 3.20 mm (L × W × H). RoHS-compliant, AEC-Q101 qualified, MSL Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to system ground or low-side reference | Enables unidirectional clamping from protected line to ground; must be routed with low-inductance path to minimize overshoot. |
| Cathode | Current exit point in forward bias; connected to protected line (e.g., 36 V rail) | Acts as the input terminal for transient energy; polarity marking ensures correct orientation during placement. |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier process improves long-term reliability under thermal cycling and humidity exposure. |
| AEC-Q101 qualification | Validated for automotive applications including engine control, ADAS sensors, and body electronics. |
| Low incremental surge resistance | Minimizes VC rise during fast transients, enhancing protection margin for sensitive downstream MOSFETs and controllers. |
| MSL Level 1, 260 °C peak | Compatible with standard lead-free reflow profiles without preconditioning or special handling. |
| UL 94 V-0 molding compound | Ensures flame retardancy in enclosed industrial and automotive assemblies meeting safety standards. |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Motor Drive Power Rail |
|---|---|
Use Scenario: Protects microcontroller power inputs and CAN transceiver lines against load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between 36 V battery rail and local DC/DC converter input. Use Value: Limits transient voltage to ≤58.1 V, preventing latch-up or damage to 40 V-rated buck controllers and interface ICs. |
Use Scenario: Shields gate drivers and current-sense amplifiers from inductive kickback during IGBT switching in 3-phase inverters. IC Role / Device Role / Timing Role: High-power surge suppressor mounted directly across DC bus terminals near motor terminals. Use Value: Absorbs 3000 W surges without degradation, maintaining system uptime in factory automation environments. |
| Telecom Base Station Power Supply | Consumer Appliance Main Board Protection |
Use Scenario: Guards 48 V intermediate bus against lightning-induced surges entering via AC/DC front-end or external interfaces. IC Role / Device Role / Timing Role: Primary-level TVS on telecom rectifier output, upstream of POL converters. Use Value: Withstands repeated 10/1000 μs surges while maintaining <1.0 μA leakage at 36 V, minimizing standby power loss. |
Use Scenario: Safeguards MCU and display driver ICs in washing machines and HVAC controllers exposed to relay coil transients. IC Role / Device Role / Timing Role: Localized clamping device on 24–48 V auxiliary supply rail feeding user interface modules. Use Value: Delivers 185 °C junction rating for reliable operation inside sealed, thermally constrained appliance enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/57T | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher VC/VBR ratio (1.53) | Targeted at lower-energy consumer electronics; insufficient for automotive load dump compliance. | Select only for cost-sensitive, non-automotive applications with <500 W surge requirements. |
| SMCJ36AHE3/57T | Same DO-214AB package, identical VWM/VBR, but rated for 1500 W (10/1000 μs) and 150 °C max TJ | Lacks AEC-Q101 qualification and 185 °C rating; suitable for industrial but not automotive deployment. | Choose when AEC-Q101 is not required and thermal margin above 150 °C is unnecessary. |
Compared with SMAJ36A-E3/57T and SMCJ36AHE3/57T, the 3KASMC36AHM3/57T uniquely combines 3000 W surge capacity, AEC-Q101 qualification, and 185 °C operation - making it the only option qualified for under-hood automotive use with full load dump immunity.
Availability
3KASMC36AHM3/57T is available at Aetrix Electronics and suitable for automotive ECU design, industrial motor drive development, and telecom base station power supply engineering requiring stable component supply and long-term lifecycle support.
Supply support for 3KASMC36AHM3/57T 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 high-reliability diodes, rectifiers, and protection devices for demanding environments.
The 3KASMC series was engineered specifically for AEC-Q101-compliant automotive and high-temperature industrial applications, emphasizing robustness against repetitive surge stress and extended thermal endurance.
FAQ
What is the maximum clamping voltage of the 3KASMC36AHM3/57T under surge conditions?
The 3KASMC36AHM3/57T exhibits a maximum clamping voltage (VC) of 58.1 V when subjected to its rated peak pulse current of 51.6 A (10/1000 μs waveform). This value is measured per ANSI/IEEE C62.35 and ensures downstream components see limited overvoltage stress during transient events.
Is the 3KASMC36AHM3/57T qualified for automotive applications?
Yes, the 3KASMC36AHM3/57T is AEC-Q101 qualified and rated for operation up to +185 °C junction temperature. It meets automotive reliability requirements for under-hood and powertrain applications, including immunity to load dump per ISO 7637-2.
What package type does the 3KASMC36AHM3/57T use, and what are its key mechanical features?
The 3KASMC36AHM3/57T uses the DO-214AB (SMC) surface-mount package, measuring 7.11 mm × 6.60 mm × 3.20 mm. It features matte tin-plated leads compliant with J-STD-002, UL 94 V-0 molding compound, and MSL Level 1 rating for 260 °C peak reflow.
How does the 3KASMC36AHM3/57T compare to standard SMAJ or SMCJ series TVS diodes?
The 3KASMC36AHM3/57T offers higher peak pulse power (3000 W vs. 400 W for SMAJ, 1500 W for SMCJ), extended junction temperature (185 °C vs. 150 °C), and full AEC-Q101 qualification - distinguishing it as a premium solution for mission-critical automotive and industrial surge protection.
What is the reverse leakage current specification for the 3KASMC36AHM3/57T at its stand-off voltage?
At VWM = 36 V and TA = 25 °C, the 3KASMC36AHM3/57T specifies a maximum reverse leakage current (IR) of 1.0 μA. At elevated temperature (TJ = 150 °C), leakage remains ≤20 μA, supporting low-power system designs.
3KASMC36AHM3/57T 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)
3KASMC36AHM3/57T FAQ
1.How can I place an order for 3KASMC36AHM3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 3KASMC36AHM3/57T 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 3KASMC36AHM3/57T reliable?
The price and inventory of 3KASMC36AHM3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3KASMC36AHM3/57T is usually 5 days.
3.What payment methods are accepted for 3KASMC36AHM3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3KASMC36AHM3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3KASMC36AHM3/57T?
3KASMC36AHM3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3KASMC36AHM3/57T 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 3KASMC36AHM3/57T?
For technical support, including 3KASMC36AHM3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3KASMC36AHM3/57T requirements.
6.How does Aetrix verify that 3KASMC36AHM3/57T is sourced from the original manufacturer or authorized distributors?
All 3KASMC36AHM3/57T 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 3KASMC36AHM3/57T meets industry standards.
7.What is the process for return or replacement of 3KASMC36AHM3/57T?
All 3KASMC36AHM3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 3KASMC36AHM3/57T, 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 3KASMC36AHM3/57T part is unused and in its original packaging.
Return procedure for 3KASMC36AHM3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3KASMC36AHM3/57T 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 …
