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Vishay General Semiconductor - Diodes Division SM5S60CAHM3/I
- Part No.:
- SM5S60CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
SM5S60CAHM3/I.pdf
- Description:
- 3600 W BI-DIRECTIONAL TVS IS DO-
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
SM5S60CAHM3/I from Vishay General Semiconductor is a bidirectional surface-mount PAR® transient voltage suppressor (TVS) in DO-218AC package, rated for 60 V stand-off voltage (VWM), 66.7–73.7 V breakdown (VBR), and 3600 W peak pulse power (10/1000 µs). It delivers 37.2 A peak pulse current and clamps to ≤96.8 V under surge, supporting automotive load dump protection per ISO 7637-2 and ISO 16750-2.
For engineers reviewing the SM5S60CAHM3/I datasheet, SM5S60CAHM3/I pinout, SM5S60CAHM3/I application, or SM5S60CAHM3/I equivalent, this AEC-Q101 qualified TVS offers high-temperature operation up to 175 °C, low leakage (<10 µA at VWM), MSL Level 1 reliability, and halogen-free RoHS-compliant construction - critical for automotive power rail and ECU front-end protection design.
Technical Context
This TVS operates as a voltage-clamping overvoltage protection device across bidirectional signal or power lines. Its silicon avalanche structure enables fast response (<1 ns), low clamping ratio (VC/VBR ≈ 1.38), and stable performance from −55 °C to +175 °C junction temperature.
Designed for high-surge environments, it sustains 3600 W (10/1000 µs) and 2400 W (10/10,000 µs) pulses without degradation. Thermal resistance is optimized with RθJM = 0.45 °C/W to metal heatsink, enabling direct mounting on PCB copper pour for effective transient energy dissipation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 60 V - maximum continuous reverse operating voltage before clamping begins; defines safe operating margin below system rail. |
| VBR (min/typ/max) | 66.7 / 70.2 / 73.7 V - verified avalanche onset range at 5 mA test current; ensures predictable turn-on behavior. |
| VC @ IPPM | ≤96.8 V - clamping voltage at 37.2 A peak pulse; limits downstream voltage stress during transients. |
| PPPM (10/1000 µs) | 3600 W - surge handling capacity for short-duration automotive load dump events. |
| ID @ VWM | <10 µA - ultra-low reverse leakage preserves battery life and minimizes standby power loss. |
| TJ max. | +175 °C - supports under-hood automotive placement without derating in high-ambient environments. |
| Package | DO-218AC - thermally enhanced surface-mount outline with metal heatsink terminal; enables efficient PCB heat spreading. |
Pinout & Package
SM5S60CAHM3/I uses the DO-218AC package: a two-terminal, bidirectional surface-mount device with no polarity marking. Terminal 1 is the anode-side lead; Terminal 2 is the metal heatsink tab - electrically connected to cathode and intended for thermal anchoring to large copper areas.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 (Lead) | Anode connection | Primary current entry point during positive transients; soldered to protected line trace. |
| Terminal 2 (Metal Tab) | Cathode / Heatsink | Electrically common cathode node and primary thermal path; must be connected to ≥100 mm² copper pour for rated power dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance - required for ECU, body control, and ADAS modules. |
| MSL Level 1 (245 °C peak) | Enables standard SMT reflow without moisture sensitivity concerns; eliminates bake requirements pre-assembly. |
| Junction temperature rating (−55 to +175 °C) | Supports operation in engine bay, transmission control, and battery management systems where ambient exceeds 125 °C. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets global environmental compliance mandates and eliminates corrosive decomposition products during end-of-life recycling. |
| ISO 7637-2 & ISO 16750-2 compliance | Verified against standardized automotive electrical disturbance waveforms - simplifies system-level EMC validation. |
Applications
| Automotive Load Dump Protection | DC Power Rail Surge Suppression |
|---|---|
Use Scenario: Protecting vehicle ECUs during alternator load dump events (ISO 7637-2 Pulse 5a), where battery voltage spikes to 120 V for up to 400 ms. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed at DC input stage of power supply ICs or microcontrollers. Use Value: Limits input voltage to ≤96.8 V while absorbing 3600 W surges, preventing latch-up or permanent damage to downstream regulators and logic. |
Use Scenario: Safeguarding 48 V mild-hybrid power distribution units against switching transients from solenoid drivers or motor controllers. IC Role / Device Role / Timing Role: Bidirectional transient shunt across main power bus, responding within <1 ns to overvoltage events. Use Value: Maintains system uptime by clamping transients before they propagate to sensitive gate drivers or CAN transceivers. |
| Industrial Motor Drive I/O Protection | Commercial Vehicle Telematics Interface |
Use Scenario: Shielding digital I/O lines of PLC modules from inductive kickback when controlling contactors or relays. IC Role / Device Role / Timing Role: Low-capacitance TVS on RS-485 or CAN bus lines, mounted adjacent to connector. Use Value: Prevents data corruption and interface IC failure by clamping ESD and surge-induced voltage excursions to safe levels. |
Use Scenario: Securing LTE/GNSS antenna feedlines and USB-C power/data ports in fleet telematics units exposed to roadside EMI and lightning-induced coupling. IC Role / Device Role / Timing Role: Front-end protection element on power input and communication interfaces. Use Value: Ensures regulatory compliance (CISPR 25 Class 4) and field reliability by suppressing coupled transients up to 2400 W (10/10,000 µs). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ60A-E3/5A (Vishay) | Lower PPPM (400 W vs. 3600 W); SMA package (DO-214AC); higher RθJA (100 °C/W vs. 65 °C/W). | Suitable for lower-energy transients (IEC 61000-4-5 Level 2); not rated for ISO 7637-2 load dump. | Select SMAJ60A-E3/5A only for cost-sensitive industrial controls where surge energy is limited and thermal budget permits. |
| TPSMD60A (Texas Instruments) | Same DO-218AC package; slightly higher VC (98.5 V); AEC-Q101 qualified; lower ID (1 µA vs. 10 µA at VWM). | Functionally interchangeable for automotive load dump; tighter leakage benefits ultra-low-power always-on circuits. | TPSMD60A is a viable alternative where sub-µA leakage is prioritized and clamping voltage margin allows 1.7 V higher VC. |
Compared with SMAJ60A-E3/5A and TPSMD60A, the SM5S60CAHM3/I provides superior surge robustness (3600 W), lower thermal resistance, and broader automotive qualification scope - making it the preferred choice for high-energy load dump and harsh-environment applications requiring long-term reliability.
Availability
SM5S60CAHM3/I is available at Aetrix Electronics and suitable for automotive electronics, industrial motor drives, and commercial vehicle telematics requiring stable component supply with full AEC-Q101 traceability and DO-218AC thermal performance.
Supply support for SM5S60CAHM3/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, optoelectronics, and passive components for automotive, industrial, and computing markets.
The SM5SxxCA family is engineered specifically for high-energy automotive transient suppression, combining PAR® avalanche technology with DO-218AC thermal packaging to meet stringent ISO and AEC standards.
FAQ
What is the maximum clamping voltage of the SM5S60CAHM3/I at its rated peak pulse current?
The SM5S60CAHM3/I has a maximum clamping voltage (VC) of 96.8 V at its rated peak pulse current (IPPM) of 37.2 A under a 10/1000 µs waveform. This value is guaranteed per the Vishay datasheet (Document Number: 98458) and defines the upper voltage limit imposed on protected circuitry during worst-case surge events. The clamping performance remains stable across the full operating temperature range of −55 °C to +175 °C.
Is the SM5S60CAHM3/I suitable for use in automotive under-hood applications?
Yes, the SM5S60CAHM3/I is explicitly designed for under-hood use: it is AEC-Q101 qualified, rated for TJ = 175 °C, and validated per ISO 7637-2 and ISO 16750-2. Its DO-218AC package features a metal heatsink tab that must be soldered to ≥100 mm² of PCB copper to maintain thermal performance at elevated ambient temperatures. The HM3 suffix confirms halogen-free, RoHS-compliant, and whisker-resistant construction required for automotive production.
How does the SM5S60CAHM3/I differ from standard SMAJ-series TVS diodes?
The SM5S60CAHM3/I differs from SMAJ60A in three key ways: (1) 9× higher peak pulse power (3600 W vs. 400 W), (2) DO-218AC package with integrated metal heatsink (vs. DO-214AC), and (3) AEC-Q101 qualification with extended temperature range (−55 to +175 °C vs. −65 to +150 °C). These differences make SM5S60CAHM3/I appropriate for automotive load dump, whereas SMAJ60A targets lower-energy industrial transients.
What is the meaning of the "HM3/I" suffix in SM5S60CAHM3/I?
In SM5S60CAHM3/I, "H" denotes AEC-Q101 qualification; "M3" indicates halogen-free, RoHS-compliant, and Pb-free termination meeting JESD201 Class 2 whisker resistance; "I" specifies the packaging format - 750-piece 13-inch plastic tape and reel with anode oriented toward sprocket holes. This full suffix confirms compliance with automotive manufacturing and environmental requirements.
Does the SM5S60CAHM3/I require a heatsink pad on the PCB?
Yes - the metal tab (Terminal 2) of the SM5S60CAHM3/I serves as both cathode and primary thermal path. Vishay specifies a minimum 100 mm² copper area connected directly to this tab to achieve rated 3600 W surge capability and maintain junction temperature within limits. Without adequate copper pour, power derating is required per Figure 2 in the datasheet, and sustained surge performance cannot be guaranteed.
SM5S60CAHM3/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):
- 60V
- Voltage - Breakdown (Min):
- 66.7V
- Voltage - Clamping (Max) @ Ipp:
- 96.8V
- Current - Peak Pulse (10/1000µs):
- 37.2A
- 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
SM5S60CAHM3/I FAQ
1.How can I place an order for SM5S60CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM5S60CAHM3/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 SM5S60CAHM3/I reliable?
The price and inventory of SM5S60CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM5S60CAHM3/I is usually 5 days.
3.What payment methods are accepted for SM5S60CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM5S60CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM5S60CAHM3/I?
SM5S60CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM5S60CAHM3/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 SM5S60CAHM3/I?
For technical support, including SM5S60CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM5S60CAHM3/I requirements.
6.How does Aetrix verify that SM5S60CAHM3/I is sourced from the original manufacturer or authorized distributors?
All SM5S60CAHM3/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 SM5S60CAHM3/I meets industry standards.
7.What is the process for return or replacement of SM5S60CAHM3/I?
All SM5S60CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SM5S60CAHM3/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 SM5S60CAHM3/I part is unused and in its original packaging.
Return procedure for SM5S60CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM5S60CAHM3/I Tags
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