My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SM5S10CAHM3/I
- Part No.:
- SM5S10CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
SM5S10CAHM3/I.pdf
- Description:
- 3600 W BI-DIRECTIONAL TVS IS DO-
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SM5S10CAHM3/I from Vishay General Semiconductor is a bidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for automotive load dump protection. It features a 11.1–12.3 V breakdown voltage (VBR), 10 V stand-off voltage (VWM), 17.0 V maximum clamping voltage (VC) at 212 A peak pulse current, and 3600 W peak pulse power (10/1000 µs). Rated for TJ = 175 °C and AEC-Q101 qualified, it protects sensitive electronics in 12 V automotive power systems.
For engineers reviewing the SM5S10CAHM3/I datasheet, SM5S10CAHM3/I pinout, SM5S10CAHM3/I application, or SM5S10CAHM3/I equivalent, this device is selected for high-reliability transient suppression where low clamping voltage, high surge robustness, and halogen-free RoHS-compliant packaging are required in DO-218AC form factor.
Technical Context
This TVS diode operates as a bidirectional voltage-clamping protector with no polarity marking and zero cathode band. Its silicon avalanche structure delivers fast response (<1 ns) to transients while maintaining <15 µA reverse leakage at VWM and <250 µA at TJ = 175 °C.
Thermal design is enabled by ultra-low junction-to-mount thermal resistance (RθJM = 0.45 °C/W) and compatibility with standard FR-4 PCB layouts per IPC-7351. It meets ISO 7637-2 and ISO 16750-2 surge test requirements under defined conditions and passes JESD201 Class 2 whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 11.1 / 11.7 / 12.3 V - Ensures reliable turn-on before system overvoltage damages downstream ICs |
| VWM | 10.0 V - Blocks normal 12 V automotive supply ripple without leakage-induced power loss |
| VC @ IPPM | 17.0 V at 212 A - Limits worst-case transient voltage seen by protected circuitry |
| PPPM (10/1000 µs) | 3600 W - Withstands severe load-dump surges per ISO 7637-2 Pulse 5a |
| TJ max | 175 °C - Supports operation in engine bay environments without derating |
| Leakage @ VWM | 15 µA at 25 °C - Minimizes standby current draw in always-on vehicle modules |
| Package | DO-218AC - Surface-mount package with metal heatsink terminal for low-inductance mounting and thermal relief |
Pinout & Package
DO-218AC package features two terminals: Terminal 1 (anode side, marked with sprocket-hole orientation on tape) and Terminal 2 (metal heatsink/cathode side). The metal slug serves as both mechanical anchor and thermal path; no polarity band is present due to bidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode (tape orientation reference) | Aligned toward sprocket hole in 13″ reel; used for automated placement fiducial |
| Terminal 2 | Heatsink / common cathode path | Low-inductance metal slug directly soldered to PCB copper pour for thermal dissipation and EMI control |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per stress test plan |
| Halogen-free, RoHS-compliant M3 termination | Meets automotive environmental compliance mandates without compromising solderability or whisker resistance |
| MSL Level 1 rating | Unlimited floor life at ≤30 °C/60 % RH; supports reflow up to 245 °C peak without popcorn failure |
| ISO 7637-2 & ISO 16750-2 compliance | Passes Pulse 1, 2a, 2b, 3a/b, and 5a tests under specified coupling network and wiring harness conditions |
| 175 °C junction capability | Enables placement near heat sources (e.g., power converters, ECUs) without thermal shutdown or parameter drift |
Applications
| Automotive Body Control Module (BCM) | Engine Control Unit (ECU) Power Input |
|---|---|
Use Scenario: Protects microcontroller power rails from alternator load dump spikes during battery disconnect events. IC Role / Device Role: Primary clamping element placed upstream of DC/DC converter input. Use Value: Clamps 12 V system transients to ≤17.0 V, preventing overvoltage damage to 24 V tolerant regulators and logic ICs. |
Use Scenario: Shields ECU main power input against ISO 7637-2 Pulse 5a (load dump) and Pulse 1 (inductive switch-off). IC Role / Device Role: Standoff-rated TVS with low VC placed directly at connector entry point. Use Value: Absorbs 3600 W surge energy without degradation, maintaining system uptime in harsh engine compartment environments. |
| ADAS Camera Power Supply | Infotainment Head Unit USB/Power Interface |
Use Scenario: Guards image sensor and SerDes IC power lines against transients induced by nearby motor actuation (e.g., mirror, focus motors). IC Role / Device Role: Bidirectional clamping device on 12 V bias rail feeding camera module. Use Value: Sub-17 V clamping ensures analog front-end remains within safe operating area during repeated switching events. |
Use Scenario: Suppresses ESD and line transients on 12 V accessory power inputs shared across USB hub, display backlight, and audio amplifiers. IC Role / Device Role: High-power TVS integrated into fused power distribution node. Use Value: 212 A peak current handling prevents single-event failure during hot-swap or cable insertion 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 |
|---|---|---|---|
| SMAJ10CA | Lower PPPM (400 W), SMA package, higher VC (17.5 V), not AEC-Q101 qualified | Suitable for non-automotive industrial controls; lacks ISO 7637-2 validation and 175 °C rating | Select when cost sensitivity outweighs automotive qualification and surge margin requirements |
| TPSMD10CA | Same DO-218AC package, 3600 W PPPM, but VBR = 11.4–12.6 V and VC = 17.5 V; AEC-Q101 qualified | Compatible footprint and thermal profile; slightly higher clamping increases risk of downstream overvoltage | Choose if board layout reuse is critical and 0.5 V higher clamping is acceptable in system margin analysis |
Compared with SMAJ10CA and TPSMD10CA, the SM5S10CAHM3/I offers the lowest clamping voltage (17.0 V) among AEC-Q101-qualified 3600 W DO-218AC TVS diodes, enabling tighter protection margins for 12 V automotive electronics without sacrificing thermal or surge performance.
Availability
SM5S10CAHM3/I is available at Aetrix Electronics and suitable for automotive body electronics, engine management systems, and ADAS power protection requiring stable component supply across extended temperature and lifecycle demands.
Supply support for SM5S10CAHM3/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, MOSFETs, and passive components for automotive, industrial, and computing markets.
The SM5SxxCA family is engineered specifically for automotive-grade transient suppression, combining high-temperature stability, AEC-Q101 qualification, and DO-218AC thermal efficiency to meet stringent OEM power rail protection requirements.
FAQ
What is the clamping voltage of SM5S10CAHM3/I and why does it matter?
The SM5S10CAHM3/I has a maximum clamping voltage (VC) of 17.0 V at 212 A peak pulse current. This value defines the highest voltage imposed on protected circuitry during a transient event. For 12 V automotive systems, keeping VC below 18 V ensures downstream DC/DC converters, microcontrollers, and sensors remain within absolute maximum ratings - a critical requirement validated in ISO 7637-2 Pulse 5a testing. The SM5S10CAHM3/I achieves this with minimal voltage overshoot due to its optimized avalanche structure.
Is SM5S10CAHM3/I compatible with lead-free reflow processes?
Yes, the SM5S10CAHM3/I is rated for lead-free reflow with a maximum peak temperature of 245 °C per J-STD-020, and carries MSL Level 1 classification - meaning unlimited floor life under standard humidity conditions. Its matte tin-plated terminals comply with JESD 22-B102 solderability standards, and the HM3 suffix confirms JESD 201 Class 2 whisker resistance. These attributes make SM5S10CAHM3/I fully compatible with modern automotive manufacturing lines using Pb-free SAC305 or similar alloys.
How does SM5S10CAHM3/I differ from standard SMAJ series TVS diodes?
The SM5S10CAHM3/I differs from SMAJ10CA in three key ways: it delivers 9× higher peak pulse power (3600 W vs. 400 W), uses the thermally superior DO-218AC package with metal heatsink terminal, and is AEC-Q101 qualified for automotive use - whereas SMAJ10CA is industrial-grade only. Additionally, SM5S10CAHM3/I exhibits lower clamping voltage (17.0 V vs. 17.5 V) and guaranteed 175 °C operation, making it suitable for under-hood applications where SMAJ10CA would require derating or fail qualification.
Can SM5S10CAHM3/I be used in bidirectional signal line protection?
No - the SM5S10CAHM3/I is designed exclusively for power rail transient suppression, not signal-line protection. Its DO-218AC package and 3600 W surge rating target high-energy transients like load dump, not low-energy ESD events on data lines. For bidirectional signal protection (e.g., CAN, LIN), smaller-capacitance devices such as ESD9L5.0 or USB-ULC series are appropriate. Using SM5S10CAHM3/I on signal lines would introduce excessive capacitance (>1000 pF at 0 V) and unnecessary cost and board space.
What does the "HM3/I" suffix mean in SM5S10CAHM3/I?
In SM5S10CAHM3/I, "H" denotes AEC-Q101 qualification, "M3" specifies halogen-free, RoHS-compliant, Pb-free termination meeting JESD201 Class 2 whisker resistance, and "I" indicates the preferred packaging code: 13″ plastic tape and reel with anode oriented toward sprocket holes. This full suffix confirms the part meets automotive environmental, reliability, and manufacturability requirements - distinguishing it from non-H/non-M3 variants that lack these certifications. The SM5S10CAHM3/I is the designated production-grade version for automotive OEMs.
SM5S10CAHM3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-218AB
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 212A
- Power - Peak Pulse:
- 3600W (3.6kW)
- 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
SM5S10CAHM3/I FAQ
1.How can I place an order for SM5S10CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM5S10CAHM3/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 SM5S10CAHM3/I reliable?
The price and inventory of SM5S10CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM5S10CAHM3/I is usually 5 days.
3.What payment methods are accepted for SM5S10CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM5S10CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM5S10CAHM3/I?
SM5S10CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM5S10CAHM3/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 SM5S10CAHM3/I?
For technical support, including SM5S10CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM5S10CAHM3/I requirements.
6.How does Aetrix verify that SM5S10CAHM3/I is sourced from the original manufacturer or authorized distributors?
All SM5S10CAHM3/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 SM5S10CAHM3/I meets industry standards.
7.What is the process for return or replacement of SM5S10CAHM3/I?
All SM5S10CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SM5S10CAHM3/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 SM5S10CAHM3/I part is unused and in its original packaging.
Return procedure for SM5S10CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM5S10CAHM3/I 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 …
