My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMC3K36CAHM3_A/H
- Part No.:
- SMC3K36CAHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMC3K36CAHM3_A/H.pdf
- Description:
- 3KW, 36V 5%,BIDIR,SMC TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,404
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMC3K36CAHM3_A from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 36 V standoff voltage (VWM), 40.0–44.2 V breakdown voltage (VBR), 58.1 V clamping voltage (VC) at 51.6 A peak pulse current (IPPM), and 3000 W peak pulse power (10/1000 μs), targeting automotive power line and sensor interface protection.
For engineers reviewing the SMC3K36CAHM3_A datasheet, SMC3K36CAHM3_A pinout, SMC3K36CAHM3_A application, or SMC3K36CAHM3_A equivalent, key selection criteria include ISO 7637-2 Pulse 1/2a/3a/3b and ISO 16750-2 Pulse b compliance, AEC-Q101 qualification, 30 kV ESD immunity per IEC 61000-4-2, and thermal resistance RthJM = 4.0 °C/W for high-reliability automotive PCB layouts.
Technical Context
This TVS diode operates bidirectionally with symmetrical clamping behavior, enabling protection of AC-coupled or differential signal lines without polarity concerns. Its low incremental surge resistance and fast response time ensure effective suppression of sub-microsecond transients such as load dump spikes and inductive switching noise.
The device meets stringent automotive reliability standards including AEC-Q101 qualification and UL 497B safety recognition (E136766), with MSL Level 1 moisture sensitivity and halogen-free, RoHS-compliant construction. Thermal performance is characterized by RthJA = 90 °C/W (JEDEC 51-2A) and RthJM = 4.0 °C/W (JEDEC 51-14), supporting stable operation up to TJ = +175 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 12 V/24 V automotive systems. |
| VBR (min/max) | 40.0 V / 44.2 V - Breakdown voltage range at 1 mA test current; ensures consistent turn-on across production lots and temperature. |
| VC @ IPPM | 58.1 V at 51.6 A - Clamping voltage under 10/1000 μs transient; determines maximum stress imposed on protected downstream ICs. |
| PPPM | 3000 W - Peak pulse power handling capability (10/1000 μs); supports high-energy transients like ISO 7637-2 Pulse 1 (-150 V, 2 ms). |
| TJ max. | +175 °C - Maximum junction temperature; enables deployment in under-hood automotive environments with minimal derating. |
| ESD Rating | ±30 kV - Human body model (HBM) contact/air discharge per IEC 61000-4-2; protects against electrostatic events during assembly and service. |
| Package | SMC (DO-214AB) - Industry-standard surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height; compatible with automated SMT placement. |
Pinout & Package
SMC3K36CAHM3_A uses the standard SMC (DO-214AB) package: a two-terminal, bidirectional device with no polarity marking. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102, and qualified to JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (Anode) | Transient current return path | Bidirectional structure means both terminals serve identically as conduction paths during positive/negative transients; no functional distinction. |
| Anode (Cathode) | Transient current return path | Identical role to opposite terminal; symmetric layout simplifies PCB routing and eliminates orientation constraints during placement. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing per JEDEC standards. |
| UL 497B recognition (E136766) | Meets safety requirements for transient protection components used in telecom and industrial equipment with hazardous voltage isolation needs. |
| 30 kW surge rating (8/20 μs) | Supports high-current lightning-induced surges per IEC 61000-4-5; clamps at 76.0 V with 395 A peak current for system-level robustness. |
| MSL Level 1 (260 °C peak) | Enables standard lead-free reflow without preconditioning; eliminates moisture-related popcorning risk during manufacturing. |
| Halogen-free & RoHS-compliant | Complies with environmental regulations for automotive and consumer electronics; base P/NHM3_A suffix confirms full material compliance. |
Applications
| Automotive Power Line Protection | Engine Control Unit (ECU) Input Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed power rails in vehicles against load dump (ISO 16750-2 Pulse b) and alternator switching transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC/DC converters and LDO regulators. Use Value: Limits rail voltage to ≤58.1 V during 51.6 A transients, preventing damage to 40 V-rated input stages of power management ICs. |
Use Scenario: Safeguarding analog sensor inputs (e.g., MAP, TPS) and digital communication lines (LIN, CAN PHY) in engine control modules. IC Role / Device Role / Timing Role: Secondary protection element located at connector interface to shunt induced noise before reaching microcontroller GPIOs. Use Value: Withstands ±30 kV ESD events and clamps ISO 7637-2 Pulse 3a/b transients to <45 V, preserving signal integrity and MCU latch-up immunity. |
| Industrial Motor Drive Feedback Circuits | Telecom Power Supply Input Stage |
Use Scenario: Shielding isolated current/voltage sensing circuits from inductive kickback generated by IGBT gate drivers and motor windings. IC Role / Device Role / Timing Role: Fast-response transient suppressor bridging isolated amplifier inputs to ground reference. Use Value: Sub-1 ns response time and low clamping voltage (58.1 V) prevent saturation or destruction of precision op-amps and ADC front-ends. |
Use Scenario: Front-end protection of AC/DC and DC/DC power supplies in base station equipment exposed to lightning-induced surges. IC Role / Device Role / Timing Role: First-line defense against 8/20 μs surges per IEC 61000-4-5, coordinated with MOVs and gas discharge tubes. Use Value: 76.0 V clamping at 395 A enables coordination with secondary protection stages while maintaining <100 V let-through voltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36CA | Lower PPPM (400 W vs. 3000 W); SMA package (smaller footprint, higher RthJA = 150 °C/W). | Not suitable for ISO 16750-2 Pulse b or high-energy load dump; limited to low-power signal line protection. | Select only for space-constrained non-automotive designs where peak surge energy is <100 mJ. |
| 1.5KE36CA | Higher VBR tolerance (±5% vs. ±10%), through-hole DO-201 package, same 3000 W rating but slower response due to higher parasitic inductance. | Lacks AEC-Q101 qualification and MSL Level 1 rating; unsuitable for automated SMT production or under-hood use. | Prefer for legacy through-hole designs or cost-sensitive industrial applications without automotive compliance requirements. |
Compared with SMAJ36CA and 1.5KE36CA, SMC3K36CAHM3_A delivers automotive-grade surge robustness in an SMT-optimized package, combining AEC-Q101 qualification, 30 kV ESD immunity, and 4.0 °C/W junction-to-mount thermal resistance-enabling reliable operation in thermally demanding automotive power domains where alternatives fall short in qualification or thermal performance.
Availability
SMC3K36CAHM3_A is available at Aetrix Electronics and suitable for automotive power rail protection, engine control unit (ECU) input safeguarding, industrial motor drive feedback circuits, and telecom power supply input stages requiring stable component supply and long-term lifecycle support.
Supply support for SMC3K36CAHM3_A 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, MOSFETs, optoelectronics, and passive components for automotive, industrial, and computing markets.
The SMC3KxxCAHM3_A series is part of Vishay's TRANSZORB® TVS portfolio, engineered specifically for AEC-Q101-compliant automotive transient suppression with enhanced surge robustness, low clamping voltage, and halogen-free packaging.
FAQ
What is the clamping voltage of SMC3K36CAHM3_A under a 10/1000 μs transient?
The SMC3K36CAHM3_A clamps to 58.1 V when subjected to its rated peak pulse current of 51.6 A using a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in the Vishay datasheet (Document Number: 98241, Rev. 09-Jan-2024). The clamping voltage directly determines the maximum stress seen by downstream circuitry, making it critical for validating protection margins in 12 V/24 V automotive systems. SMC3K36CAHM3_A maintains this performance across its full operating temperature range.
Is SMC3K36CAHM3_A qualified for automotive applications?
Yes, SMC3K36CAHM3_A is AEC-Q101 qualified, meaning it has passed rigorous stress tests including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing (uHAST) required for automotive electronic components. It also meets ISO 7637-2 (Pulse 1, 2a, 3a, 3b) and ISO 16750-2 (Pulse b) transient immunity standards. These qualifications are explicitly stated in the Vishay datasheet and verified through third-party certification, confirming SMC3K36CAHM3_A's suitability for under-hood and safety-critical vehicle subsystems.
What does the "HM3_A" suffix indicate in SMC3K36CAHM3_A?
"HM3_A" denotes Vishay's halogen-free, RoHS-compliant, and AEC-Q101-qualified construction. The "H" indicates halogen-free molding compound; "M3" specifies matte tin-plated leads meeting JESD 201 Class 2 whisker resistance; and "_A" identifies the tape-and-reel packaging variant (7-inch reel, 850 units). This suffix confirms full compliance with automotive environmental and reliability standards, distinguishing SMC3K36CAHM3_A from non-qualified variants and ensuring traceability in production environments.
How does SMC3K36CAHM3_A perform under 8/20 μs surge conditions?
Under an 8/20 μs waveform, SMC3K36CAHM3_A clamps to 76.0 V at a peak pulse current of 395 A, delivering 30 kW peak pulse power. This performance is validated per IEC 61000-4-5 and supports coordination with upstream surge protection devices in telecom and industrial power supplies. The lower clamping voltage compared to generic 36 V TVS diodes-combined with its 4.0 °C/W junction-to-mount thermal resistance-ensures stable operation during repeated surge events without thermal runaway. Data is sourced directly from Table 1 of the Vishay 98241 datasheet.
What is the maximum operating temperature for SMC3K36CAHM3_A?
The SMC3K36CAHM3_A has a maximum junction temperature (TJ max.) of +175 °C, enabling reliable operation in high-temperature automotive environments such as engine compartments and power inverters. Its thermal resistance values-RthJA = 90 °C/W (JEDEC 51-2A) and RthJM = 4.0 °C/W (JEDEC 51-14)-are measured under standardized board conditions and allow accurate thermal modeling. This specification is explicitly listed in the "PRIMARY CHARACTERISTICS" section of the Vishay datasheet (Doc. No. 98241), confirming SMC3K36CAHM3_A's suitability for extended high-temperature duty cycles.
SMC3K36CAHM3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMC3K36CAHM3_A/H FAQ
1.How can I place an order for SMC3K36CAHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMC3K36CAHM3_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 SMC3K36CAHM3_A/H reliable?
The price and inventory of SMC3K36CAHM3_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 SMC3K36CAHM3_A/H is usually 5 days.
3.What payment methods are accepted for SMC3K36CAHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMC3K36CAHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMC3K36CAHM3_A/H?
SMC3K36CAHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMC3K36CAHM3_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 SMC3K36CAHM3_A/H?
For technical support, including SMC3K36CAHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMC3K36CAHM3_A/H requirements.
6.How does Aetrix verify that SMC3K36CAHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMC3K36CAHM3_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 SMC3K36CAHM3_A/H meets industry standards.
7.What is the process for return or replacement of SMC3K36CAHM3_A/H?
All SMC3K36CAHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMC3K36CAHM3_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 SMC3K36CAHM3_A/H part is unused and in its original packaging.
Return procedure for SMC3K36CAHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMC3K36CAHM3_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 …
