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Vishay General Semiconductor - Diodes Division XMC7K24CAHM3/I
- Part No.:
- XMC7K24CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
XMC7K24CAHM3/I.pdf
- Description:
- TVS DIODE 24VWM 24VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,509
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Product details
Overview
XMC7K24CAHM3/I from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for high-energy surge protection in automotive and industrial power/signal lines. It delivers 7000 W peak pulse power (10/1000 µs), clamps at ≤24 V under 180 A surge, operates up to 175 °C junction temperature, and is AEC-Q101 qualified for under-hood automotive electronics.
For engineers reviewing the XMC7K24CAHM3/I datasheet, XMC7K24CAHM3/I pinout, XMC7K24CAHM3/I application, or XMC7K24CAHM3/I equivalent, key selection criteria include clamping voltage margin vs. protected IC VDD, 175 °C thermal capability for engine bay placement, and SMC (DO-214AB) package compatibility with high-density PCB layouts.
Technical Context
The XMC7K24CAHM3/I uses an XClampR® silicon avalanche structure optimized for ultra-low clamping voltage relative to conventional 7 kW TVS devices. Its bidirectional architecture enables symmetrical surge suppression on AC-coupled or floating signal paths without polarity concerns.
It sustains 180 A peak pulse current (10/1000 µs) while maintaining VCL ≤ 24 V, with breakdown voltage tightly specified at 26.7–29.5 V at 1 mA test current. Thermal derating follows a defined curve down to zero IPPM at TJ = 175 °C, supporting reliable operation in high-ambient environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - Maximum continuous reverse working voltage before leakage exceeds 1 µA; sets upper limit for system DC bias. |
| VBR (min/max) | 26.7 V / 29.5 V - Breakdown occurs within this range at 1 mA; ensures predictable turn-on above VWM. |
| VCL @ 180 A | ≤24 V - Clamping voltage during full-rated 10/1000 µs surge; protects downstream ICs rated ≤24 V absolute max. |
| PPPM | 7000 W - Peak pulse power handling (10/1000 µs); enables robust lightning/inductive-switching immunity. |
| TJ max | 175 °C - Maximum junction temperature; supports placement near heat sources in automotive ECUs. |
| Polarity | Bidirectional - Suppresses positive and negative transients equally; suitable for AC lines or ungrounded sensors. |
| Leakage IR | ≤1.0 µA @ VWM - Minimal standby current draw; preserves battery life in always-on automotive modules. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, halogen-free, RoHS-compliant, MSL Level 1 (260 °C reflow peak). Dimensions: 7.11 mm × 6.22 mm × 2.62 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (marked end) | Anode/Cathode terminal | Bidirectional device - no functional polarity; marking denotes cathode side per convention but both terminals behave identically. |
| Anode (unmarked end) | Anode/Cathode terminal | Identical electrical behavior to marked end; symmetric clamping characteristic eliminates orientation sensitivity during placement. |
Key Features
| Feature | Design Value |
|---|---|
| XClampR® low clamping | VCL ≤ 24 V at 180 A - Reduces stress on 24 V-rated microcontrollers and CAN transceivers during ISO 7637-2 pulses. |
| AEC-Q101 qualification | Validated for automotive under-hood use - meets stress testing for temperature cycling, humidity, and mechanical shock per AEC standard. |
| 175 °C junction rating | Enables direct mounting on high-temp PCB areas - eliminates need for thermal derating margins in engine control units. |
| UL 497B recognition | E136766 file number - Confirms safety compliance for telecom and industrial signal line protection applications. |
| MSL Level 1 | No floor life limitation - supports standard SMT assembly without dry pack or baking requirements. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V power rails in engine control units against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Primary surge clamp placed upstream of DC-DC converters and MCU power inputs. Use Value: Clamps transients to ≤24 V while sustaining 180 A, preventing overvoltage damage to 24 V-tolerant regulators and logic. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Bidirectional shunt protector on differential or single-ended signal lines entering industrial PLC I/O modules. Use Value: Sub-1 µA leakage avoids signal offset errors; 24 V clamping preserves ADC input range integrity. |
| Telecom Data Line Surge Suppression | Consumer Device USB/Power Port Protection |
Use Scenario: Safeguarding RS-485/RS-232 transceivers in base station backhaul equipment exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Secondary-level TVS paired with GDT or polymer PTC on telecom interface PCBs. Use Value: 7000 W pulse rating handles multi-kV induced surges; bidirectional symmetry matches balanced line protocols. | Use Scenario: Hardening USB-C power delivery ports and auxiliary charging inputs in portable medical monitors and smart home hubs. IC Role / Device Role / Timing Role: Standalone overvoltage clamp on VBUS lines where space constraints preclude multi-stage designs. Use Value: SMC footprint fits tight layouts; 175 °C rating supports sealed enclosures with limited airflow. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A-E3/57T | Unidirectional; VBR = 26.7–29.7 V; VCL = 38.9 V @ 11.3 A; lower PPPM (400 W) | Limited to DC-biased lines; insufficient for 180 A surge events | Select only for low-energy ESD or board-level EMI filtering where clamping voltage margin allows. |
| SMCJ24CA | Bidirectional; VBR = 26.7–29.5 V; VCL = 38.9 V @ 182 A; same SMC package | Higher clamping voltage reduces protection margin for 24 V systems | Acceptable where 38.9 V clamping is within protected IC's absolute maximum rating; not AEC-Q101 qualified. |
Compared with SMAJ24A-E3/57T and SMCJ24CA, the XMC7K24CAHM3/I provides superior 24 V clamping performance and AEC-Q101 qualification, making it uniquely suited for automotive 24 V power rail protection where low VCL and high reliability are mandatory.
Availability
XMC7K24CAHM3/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, telecom data line protection, and consumer USB power port hardening requiring stable component supply across extended production lifecycles.
Supply support for XMC7K24CAHM3/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-grade performance.
The XMC7K24CAHM3/I belongs to Vishay's XClampR® TVS family, engineered specifically to deliver ultra-low clamping voltage and AEC-Q101 compliance for next-generation automotive and industrial surge protection.
FAQ
What is the clamping voltage specification for XMC7K24CAHM3/I under full-rated surge conditions?
The XMC7K24CAHM3/I clamps to a maximum of 24 V when subjected to its full-rated 180 A peak pulse current with a 10/1000 µs waveform. This value is guaranteed across temperature and represents the upper limit of voltage seen by protected circuitry during surge events, enabling robust design margin for 24 V-rated components.
Is XMC7K24CAHM3/I suitable for automotive under-hood applications?
Yes, the XMC7K24CAHM3/I is AEC-Q101 qualified and rated for operation up to 175 °C junction temperature, making it suitable for under-hood automotive applications such as engine control units, transmission control modules, and body control modules where ambient temperatures exceed 125 °C.
Does XMC7K24CAHM3/I require specific PCB layout considerations due to its SMC package?
Yes, the XMC7K24CAHM3/I uses the SMC (DO-214AB) package with 7.11 mm × 6.22 mm footprint. Recommended pad layout follows Vishay's published dimensions: 7.75 mm × 5.59 mm copper pads with 2.06 mm center-to-center spacing. Thermal relief and adequate copper area are critical to sustain 180 A surge energy without trace vaporization.
How does the XClampR® technology in XMC7K24CAHM3/I differ from standard TVS diodes?
XClampR® technology in the XMC7K24CAHM3/I achieves significantly lower clamping voltage (≤24 V at 180 A) compared to conventional TVS diodes of similar power rating-typically 35–40 V. This is accomplished through proprietary silicon processing and junction design that minimizes dynamic resistance during avalanche conduction.
What is the meaning of the "HM3/I" suffix in XMC7K24CAHM3/I?
The "HM3" suffix indicates halogen-free, RoHS-compliant construction with AEC-Q101 qualification; "I" denotes packaging in 13-inch tape-and-reel format with 3500 units per reel. This distinguishes it from the "H" variant (7-inch reel, 850 units) and confirms automotive-grade material compliance and traceability.
XMC7K24CAHM3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- XClampR™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 24V
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 24V
- Current - Peak Pulse (10/1000µs):
- 180A
- Power - Peak Pulse:
- 7000W (7kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
XMC7K24CAHM3/I FAQ
1.How can I place an order for XMC7K24CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for XMC7K24CAHM3/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 XMC7K24CAHM3/I reliable?
The price and inventory of XMC7K24CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XMC7K24CAHM3/I is usually 5 days.
3.What payment methods are accepted for XMC7K24CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XMC7K24CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for XMC7K24CAHM3/I?
XMC7K24CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your XMC7K24CAHM3/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 XMC7K24CAHM3/I?
For technical support, including XMC7K24CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XMC7K24CAHM3/I requirements.
6.How does Aetrix verify that XMC7K24CAHM3/I is sourced from the original manufacturer or authorized distributors?
All XMC7K24CAHM3/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 XMC7K24CAHM3/I meets industry standards.
7.What is the process for return or replacement of XMC7K24CAHM3/I?
All XMC7K24CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with XMC7K24CAHM3/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 XMC7K24CAHM3/I part is unused and in its original packaging.
Return procedure for XMC7K24CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
XMC7K24CAHM3/I Tags
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