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Vishay General Semiconductor - Diodes Division XMC7K24CAHM3/H
- Part No.:
- XMC7K24CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
XMC7K24CAHM3/H.pdf
- Description:
- TVS DIODE 24VWM 24VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,617
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Product details
Overview
XMC7K24CAHM3/H from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 24 V working stand-off voltage, 180 A peak pulse current (10/1000 μs), and clamping voltage ≤24 V. It operates from −55 °C to +175 °C, is AEC-Q101 qualified, and targets automotive power line and sensor interface protection.
For engineers reviewing the XMC7K24CAHM3/H datasheet, XMC7K24CAHM3/H pinout, XMC7K24CAHM3/H application, or XMC7K24CAHM3/H equivalent, key selection criteria include clamping voltage tightness (≤24 V at 180 A), high-temperature junction capability (175 °C), bidirectional polarity, low leakage (<1.0 μA), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
The XMC7K24CAHM3/H implements a silicon avalanche diode structure optimized for fast response to transient overvoltages, delivering sub-24 V clamping under 10/1000 μs surges up to 180 A. Its breakdown voltage range (26.7–29.5 V at 1 mA) ensures robust margin above the 24 V stand-off rating while maintaining low dynamic impedance.
Designed for harsh environments, it supports continuous operation up to TJ = 175 °C, meets MSL Level 1 per J-STD-020 (260 °C reflow peak), and passes JESD201 Class 2 whisker testing. The device is halogen-free, RoHS-compliant, and UL 497B recognized (E136766).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR (min/max) | 26.7 V / 29.5 V - Breakdown occurs within this range at 1 mA test current, ensuring safe margin above VWM |
| VCL (max) | 24 V - Clamped voltage seen by protected circuit during 180 A, 10/1000 μs surge |
| IPPM | 180 A - Peak surge current handling capacity under standard 10/1000 μs waveform |
| TJ max | +175 °C - Enables use in under-hood automotive modules and high-ambient industrial controls |
| Polarity | Bidirectional - Protects AC-coupled or dual-polarity signal/power lines without orientation dependency |
| Leakage (IR) | ≤1.0 μA at VWM - Minimizes standby power loss and avoids false triggering in high-impedance circuits |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, MSL Level 1 compliant, 0.261 g unit weight, 7″ tape-and-reel (850 pcs/reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (marked end) | Surge current sink node | Not applicable - bidirectional device has no polarity marking; terminals are functionally symmetric |
| Anode | Surge current source node | Not applicable - bidirectional device has no polarity marking; terminals are functionally symmetric |
Key Features
| Feature | Design Value |
|---|---|
| XClampR® low clamping | Clamps to ≤24 V at 180 A - limits stress on downstream MOSFETs or ICs during ISO 7637-2 Pulse 1/2a/5a events |
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Junction temperature rating | −55 °C to +175 °C - supports placement near heat sources in powertrain and chassis modules |
| UL 497B recognition | E136766 file number - satisfies safety requirements for telecom and industrial equipment surge protection |
| Halogen-free & RoHS | Complies with environmental regulations for global automotive and industrial OEM supply chains |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V CAN/LIN bus power rails and microcontroller supply inputs against load dump and inductive switching transients in body control modules. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed directly at connector entry point to shunt surge energy before reaching LDOs or MCU pins. Use Value: Maintains ≤24 V clamping under 180 A pulses, preventing latch-up or gate oxide damage in 3.3 V/5 V logic powered from protected 24 V rail. | Use Scenario: Safeguarding analog front-end inputs of pressure, temperature, or position sensors in factory automation PLC I/O modules exposed to motor drive noise. IC Role / Device Role / Timing Role: Standoff-clamp TVS connected across differential sensor lines or between signal and ground to suppress EFT and surge coupling. Use Value: Sub-1 μA leakage preserves signal integrity in high-impedance ratiometric sensor bridges; 175 °C rating allows mounting on same PCB as motor driver ICs. |
| Telecom DC Power Feeding | Consumer Appliance Motor Control |
Use Scenario: Protecting PoE-powered remote units (e.g., IP cameras, wireless access points) fed via 48 V DC lines subject to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary surge clamp on DC input stage, upstream of DC/DC converter, rated for UL 497B compliance. Use Value: UL 497B recognition (E136766) enables system-level safety certification; bidirectional capability accommodates reverse-polarity connection risk. | Use Scenario: Shielding BLDC motor controller gate drivers and current sense amplifiers in washing machines and HVAC systems from commutation spikes. IC Role / Device Role / Timing Role: Clamp device mounted at motor connector interface to absorb inductive kickback before it propagates into control logic. Use Value: 180 A IPPM handles worst-case flyback energy from large inductive loads; MSL Level 1 ensures compatibility with lead-free reflow assembly. |
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 = 26.7–29.5 V; VCL = 38.9 V at 12.3 A (lower IPPM) | Limited to DC-only protection; insufficient for high-energy automotive load dump | Select only for cost-sensitive, non-automotive DC applications where clamping voltage margin >38 V is acceptable |
| SMCJ24AHE3/73 | Bidirectional; VCL = 35.5 V at 174 A; AEC-Q101 qualified; same SMC package | Higher clamping voltage reduces protection margin for 3.3 V/5 V logic; suitable for 24 V rail-only protection | Choose when higher clamping tolerance is acceptable and legacy design uses SMCJ series footprint |
Compared with SMAJ24A-E3/57T and SMCJ24AHE3/73, the XMC7K24CAHM3/H delivers tighter clamping (≤24 V vs. ≥35.5 V), enabling safer protection of low-voltage ICs in automotive and industrial systems where voltage margin is critical.
Availability
XMC7K24CAHM3/H is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface, and telecom DC feeding applications requiring stable component supply, AEC-Q101 compliance, and high-temperature reliability.
Supply support for XMC7K24CAHM3/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 reliability, thermal performance, and automotive qualification.
The XClampR® product line was developed specifically for high-energy transient suppression in automotive and industrial environments where traditional TVS devices fail to meet clamping voltage or temperature requirements.
FAQ
What is the maximum clamping voltage of the XMC7K24CAHM3/H under surge conditions?
The XMC7K24CAHM3/H has a maximum clamping voltage (VCL) of 24 V when subjected to an 180 A, 10/1000 μs surge waveform. This value is guaranteed across the full operating temperature range and ensures minimal overvoltage stress on protected downstream components such as microcontrollers or gate drivers. The tight clamping is enabled by Vishay's XClampR® technology and is verified per the datasheet test condition on page 2.
Is the XMC7K24CAHM3/H suitable for automotive applications?
Yes, the XMC7K24CAHM3/H is AEC-Q101 qualified and explicitly designated for automotive use with the "HM3" suffix. It supports junction temperatures up to +175 °C, meets MSL Level 1 reflow requirements, and is validated for under-hood environments including engine control units and ADAS sensor modules. Its bidirectional configuration also accommodates polarity-insensitive wiring in vehicle harnesses.
What package type does the XMC7K24CAHM3/H use, and what are its mounting characteristics?
The XMC7K24CAHM3/H uses the SMC (DO-214AB) surface-mount package with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. Its dimensions are 7.75 mm × 6.22 mm × 2.62 mm (L × W × H), and it is supplied in 7″ tape-and-reel format (850 units per reel). The device is MSL Level 1 rated, supporting lead-free reflow up to 260 °C peak.
How does the XMC7K24CAHM3/H compare to conventional 7 kW TVS diodes?
The XMC7K24CAHM3/H delivers equivalent peak pulse power (7000 W) to conventional 7 kW TVS devices but achieves significantly lower clamping voltage - ≤24 V versus typical values >35 V. This improvement reduces stress on protected ICs and enables use in systems with tighter voltage margins. The datasheet notes this equivalence in footnote (1) on page 1 under "Primary Characteristics."
Does the XMC7K24CAHM3/H have UL safety certification?
Yes, the XMC7K24CAHM3/H carries UL 497B recognition with file number E136766, confirming its suitability for use in telecommunications, industrial control, and other safety-critical applications requiring certified surge protection components. This certification covers both unidirectional and bidirectional configurations of the XClampR® family, including the XMC7K24CAHM3/H variant.
XMC7K24CAHM3/H 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/H FAQ
1.How can I place an order for XMC7K24CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for XMC7K24CAHM3/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 XMC7K24CAHM3/H reliable?
The price and inventory of XMC7K24CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XMC7K24CAHM3/H is usually 5 days.
3.What payment methods are accepted for XMC7K24CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XMC7K24CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for XMC7K24CAHM3/H?
XMC7K24CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your XMC7K24CAHM3/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 XMC7K24CAHM3/H?
For technical support, including XMC7K24CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XMC7K24CAHM3/H requirements.
6.How does Aetrix verify that XMC7K24CAHM3/H is sourced from the original manufacturer or authorized distributors?
All XMC7K24CAHM3/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 XMC7K24CAHM3/H meets industry standards.
7.What is the process for return or replacement of XMC7K24CAHM3/H?
All XMC7K24CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with XMC7K24CAHM3/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 XMC7K24CAHM3/H part is unused and in its original packaging.
Return procedure for XMC7K24CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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