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Vishay General Semiconductor - Diodes Division XLD5A24CAHM3/I
- Part No.:
- XLD5A24CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
XLD5A24CAHM3/I.pdf
- Description:
- PPPM=4600W AND IPPM=120A WITH 10
- Quantity:
- Payment:
- Shipping:
Inventory:2,033
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Product details
Overview
XLD5A24CAHM3/I from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) designed for automotive load dump and 24 V jumper-start protection in 12 V powertrain systems. It delivers 7700 W peak pulse power (10/1000 µs), clamps to ≤26 V at 120 A (10/10 000 µs), operates up to 175 °C, and is AEC-Q101 qualified in DO-218AC package.
For engineers reviewing the XLD5A24CAHM3/I datasheet, XLD5A24CAHM3/I pinout, XLD5A24CAHM3/I application, or XLD5A24CAHM3/I equivalent, key selection criteria include its 24 V stand-off voltage, 26.7–29.5 V breakdown range, ultra-low clamping performance, bidirectional polarity, and MSL Level 1 reflow compatibility - all critical for high-reliability automotive transients suppression.
Technical Context
The XLD5A24CAHM3/I employs Vishay's XClampR® technology to achieve exceptionally low clamping voltage (≤26 V at 120 A), enabling robust protection of downstream 24 V-rated ICs during load dump events. Its bidirectional structure eliminates polarity concerns in DC bus applications and supports symmetric surge handling without external orientation constraints.
Rated for TJ = −55 °C to +175 °C and qualified per AEC-Q101, the device sustains performance under extended thermal stress in engine bay environments. Its DO-218AC package provides enhanced thermal dissipation versus standard SMA/SMB, supporting stable operation under repetitive 10/10 000 µs surges with derating above 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - Maximum continuous reverse operating voltage before conduction begins; defines system bus voltage rating. |
| VBR (min/max) | 26.7 V / 29.5 V - Breakdown occurs within this range at 5 mA test current; ensures predictable turn-on margin above VWM. |
| VCL (max) | 26 V - Maximum clamped voltage at 120 A (10/10 000 µs); limits stress on protected circuitry during worst-case surge. |
| PPPM (10/1000 µs) | 7700 W - Peak pulse power handling capability; meets ISO 7637-2 Pulse 5a load dump requirements. |
| IPPM | 120 A - Peak pulse current with 10/10 000 µs waveform; validates survivability against extended-duration transients. |
| TJ max | +175 °C - Maximum junction temperature; enables placement near high-heat sources in automotive ECUs. |
| Polarity | Bidirectional - Symmetric clamping for AC-coupled or floating-bus applications; no cathode marking required. |
Pinout & Package
Package: DO-218AC - Surface-mount, thermally enhanced case with metal heatsink terminal (Lead 2), UL 94 V-0 molding compound, matte tin-plated leads, MSL Level 1 (245 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Lead 1 | Anode/Cathode (bidirectional) | Common connection point; polarity-agnostic due to symmetrical internal structure. |
| Lead 2 / Metal Heatsink | Thermal & Electrical Return Path | Primary heat dissipation path and low-inductance return; must be connected to large copper pour for optimal surge energy handling. |
Key Features
| Feature | Design Value |
|---|---|
| XClampR® low clamping voltage | Clamps to ≤26 V at 120 A (10/10 000 µs), reducing voltage overshoot by up to 30 % vs. conventional TVS diodes in same package. |
| AEC-Q101 qualification | Validated for automotive underhood use including temperature cycling, humidity bias, and mechanical shock per AEC-Q101 Rev D. |
| High-temperature junction rating | Operates reliably from −55 °C to +175 °C, supporting placement in proximity to power MOSFETs or ignition coils. |
| Low leakage current | ≤1.0 µA at 24 V (VWM), minimizing standby power loss in always-on vehicle modules. |
| Halogen-free & RoHS-compliant | Meets automotive environmental standards; base P/N suffix HM3_X denotes halogen-free, RoHS, and AEC-Q101 compliance. |
Applications
| Engine Control Unit (ECU) Power Input Protection | Body Control Module (BCM) CAN Bus Power Line |
|---|---|
Use Scenario: Protects 12 V supply rail of engine control units against ISO 7637-2 Pulse 5a load dump (up to 60 V, 400 ms) and jumper-start surges (24 V sustained). IC Role / Device Role: Primary clamping element placed upstream of DC/DC converters and microcontrollers. Use Value: Limits transient voltage to ≤26 V, preventing latch-up or overvoltage damage to 28 V-rated power management ICs. | Use Scenario: Shields CAN transceiver power pins from coupled transients induced by nearby solenoid switching or alternator ripple. IC Role / Device Role: Secondary surge clamp on VCC line of CAN FD transceivers in body electronics. Use Value: Maintains <1 µA leakage at 24 V, avoiding false wake-up or quiescent current violations in sleep-mode BCMs. |
| Electric Power Steering (EPS) Motor Driver Supply | ADAS Camera Module 12 V Input |
Use Scenario: Absorbs inductive kickback from H-bridge motor drivers during emergency shutdown or fault conditions. IC Role / Device Role: High-energy transient shunt across motor driver supply rails. Use Value: Handles 120 A peak current (10/10 000 µs), sustaining clamping performance without thermal runaway at TJ = 150 °C. | Use Scenario: Guards image sensor and ISP power inputs against ESD and load dump coupling in rear-view or surround-view cameras. IC Role / Device Role: Front-line transient suppressor before LDO regulators feeding CMOS image sensors. Use Value: Bidirectional operation accommodates reverse-polarity test conditions; DO-218AC thermal mass prevents local PCB hot spots during repeated surges. |
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; lower PPPM (400 W, 10/1000 µs); VCL = 38.9 V at 10.3 A; DO-214AC package. | Requires external polarity management; insufficient for load dump (needs series stacking); limited to low-energy ESD. | Select only for cost-sensitive non-automotive applications where bidirectionality and >5 kA surge capability are not required. |
| SMCJ24CA | Bidirectional; higher VCL = 38.9 V at 124 A (10/1000 µs); same DO-214AB package; 1500 W PPPM (10/1000 µs). | Clamps ~13 V higher than XLD5A24CAHM3/I; may exceed safe voltage margin for 28 V-rated downstream ICs. | Use where thermal budget allows larger footprint and higher clamping is acceptable; not suitable for tight-margin 24 V rail protection. |
Compared with SMAJ24A-E3/57T and SMCJ24CA, the XLD5A24CAHM3/I uniquely combines bidirectional operation, 26 V clamping at 120 A, and AEC-Q101 qualification in a thermally optimized DO-218AC package - making it the only option capable of single-device compliance with ISO 16750-2 load dump requirements for 12 V systems.
Availability
XLD5A24CAHM3/I is available at Aetrix Electronics and suitable for automotive powertrain control, ADAS camera power conditioning, and body electronics surge protection requiring stable component supply across multi-year production cycles.
Supply support for XLD5A24CAHM3/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 high-reliability diodes, rectifiers, and protection devices for automotive, industrial, and computing markets.
The XClampR® TVS family, including XLD5A24CAHM3/I, was engineered specifically for automotive-grade transient suppression - emphasizing ultra-low clamping, high-temperature operation, and AEC-Q101 validation to replace legacy stacked-diode solutions.
FAQ
What is the maximum clamping voltage of the XLD5A24CAHM3/I under surge conditions?
The XLD5A24CAHM3/I has a maximum clamping voltage (VCL) of 26 V when subjected to a 120 A peak pulse current with a 10/10 000 µs waveform. This value is guaranteed across temperature and represents the upper limit of voltage seen by protected circuitry during worst-case transients - critical for ensuring compatibility with 28 V-rated downstream ICs in automotive applications.
Is the XLD5A24CAHM3/I suitable for ISO 7637-2 Load Dump protection?
Yes, the XLD5A24CAHM3/I is explicitly designed for ISO 7637-2 Pulse 5a (load dump) protection in 12 V automotive systems. Its 7700 W peak pulse power rating (10/1000 µs), 24 V stand-off voltage, and 26 V clamping at 120 A meet the energy and voltage constraints defined in the standard - validated through AEC-Q101 stress testing and referenced in Vishay's application guidance for powertrain protection.
Does the XLD5A24CAHM3/I require a heatsink for standard automotive operation?
No external heatsink is required for the XLD5A24CAHM3/I under typical automotive surge conditions, as its DO-218AC package integrates a metal heatsink terminal (Lead 2) that serves as the primary thermal path. PCB layout with ≥100 mm² of 2 oz copper connected to Lead 2 achieves sufficient thermal dissipation for single-event load dump pulses; however, repetitive surges demand careful thermal design per Figure 2 derating curves.
What does the "HM3/I" suffix indicate in XLD5A24CAHM3/I?
The "HM3" suffix denotes Vishay's automotive-qualified variant: halogen-free, RoHS-compliant, AEC-Q101 qualified, and MSL Level 1 rated. The "/I" indicates packaging in 13" diameter plastic tape and reel, with 750 units per reel - the standard logistics format for automated SMT assembly of XLD5A24CAHM3/I in high-volume automotive manufacturing.
Can the XLD5A24CAHM3/I be used in bidirectional signal lines such as CAN or LIN buses?
No - the XLD5A24CAHM3/I is rated for power rail protection only (24 V stand-off), not signal-line ESD suppression. Its capacitance (≈2.5 nF at 0 V) and clamping behavior are unsuitable for high-speed data lines. For CAN/LIN, use dedicated low-capacitance TVS arrays like Vishay's ESD9L5.0ST5G; the XLD5A24CAHM3/I remains appropriate only for DC power inputs feeding those interfaces.
XLD5A24CAHM3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-218AB
- 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:
- 26V
- Current - Peak Pulse (10/1000µs):
- 120A
- Power - Peak Pulse:
- 7700W (7.7kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-218AB
XLD5A24CAHM3/I FAQ
1.How can I place an order for XLD5A24CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for XLD5A24CAHM3/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 XLD5A24CAHM3/I reliable?
The price and inventory of XLD5A24CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XLD5A24CAHM3/I is usually 5 days.
3.What payment methods are accepted for XLD5A24CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XLD5A24CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for XLD5A24CAHM3/I?
XLD5A24CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your XLD5A24CAHM3/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 XLD5A24CAHM3/I?
For technical support, including XLD5A24CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XLD5A24CAHM3/I requirements.
6.How does Aetrix verify that XLD5A24CAHM3/I is sourced from the original manufacturer or authorized distributors?
All XLD5A24CAHM3/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 XLD5A24CAHM3/I meets industry standards.
7.What is the process for return or replacement of XLD5A24CAHM3/I?
All XLD5A24CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with XLD5A24CAHM3/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 XLD5A24CAHM3/I part is unused and in its original packaging.
Return procedure for XLD5A24CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
XLD5A24CAHM3/I Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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