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Vishay General Semiconductor - Diodes Division 1.5SMC13CAHM3/H
- Part No.:
- 1.5SMC13CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC13CAHM3/H.pdf
- Description:
- TVS DIODE 11.1VWM 18.2VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,512
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Product details
Overview
1.5SMC13CAHM3/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 13 V breakdown voltage (VBR min/max = 12.4 V / 13.7 V), 11.1 V stand-off voltage (VWM), 18.2 V clamping voltage (VC) at 82.4 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the 1.5SMC13CAHM3/H datasheet, 1.5SMC13CAHM3/H pinout, 1.5SMC13CAHM3/H application, or 1.5SMC13CAHM3/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, SMC (DO-214AB) package compatibility, and thermal resistance (RθJA = 75 °C/W) for board-level surge resilience under repetitive transients.
Technical Context
This device operates as a voltage-clamped shunt protector: when transient voltage exceeds VWM (11.1 V), it avalanches rapidly to clamp at ≤18.2 V, diverting up to 82.4 A (10/1000 μs) away from downstream circuitry. Its glass-passivated junction ensures stable breakdown and low leakage (<5 μA at VWM).
Designed for bidirectional operation, it suppresses positive and negative polarity surges without polarity marking - critical for AC-coupled or floating signal paths. The SMC package supports automated placement and meets MSL Level 1 (260 °C reflow peak), with halogen-free, RoHS-compliant construction per HM3 suffix.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 12.4 V / 13.7 V - precise avalanche onset range ensures reliable triggering above normal operating voltage while avoiding false trips. |
| VWM | 11.1 V - maximum continuous reverse voltage before conduction begins; defines safe operating margin for 12 V nominal systems. |
| VC @ IPPM | 18.2 V at 82.4 A - clamping voltage limits stress on protected ICs during lightning or inductive-switching transients. |
| PPPM | 1500 W - peak pulse power handling enables suppression of high-energy transients (e.g., ISO 7637-2 Pulse 1/2a/5a) without failure. |
| IPPM | 82.4 A - peak pulse current capacity directly determines survivability against standardized surge waveforms. |
| TJ max | 150 °C - maximum junction temperature allows sustained operation in under-hood automotive environments. |
| RθJA | 75 °C/W - thermal resistance informs PCB copper pad design (0.31" × 0.31") to maintain reliability under repeated pulses. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional - no polarity marking; symmetrical cathode/anode terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Completes low-impedance shunt path during both positive and negative overvoltage events. |
| Cathode | Transient return path (bidirectional) | Electrically identical to anode in bidirectional configuration; enables symmetric clamping across AC or floating nodes. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD - required for engine control, ADAS sensor, and infotainment modules. |
| 1500 W peak pulse power | Withstands ISO 7637-2 Pulse 5a (50 V, 100 ms) and IEC 61000-4-5 Combination Wave (1 kV/500 A) without degradation. |
| Halogen-free & RoHS-compliant (HM3) | Meets automotive environmental standards (e.g., ELV, JIG-STD-020) and supports lead-free reflow assembly at 260 °C peak. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., <1 ns rise time), improving protection margin for high-speed interfaces. |
| MSL Level 1 moisture sensitivity | Enables standard SMT processing without dry-pack or baking - reduces manufacturing cost and cycle time. |
Applications
| Automotive Sensor Interface | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and jump-start transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional shunt TVS placed between signal line and ground, clamping ±18.2 V within nanoseconds to prevent latch-up or gate oxide damage. Use Value: Enables compliance with ISO 16750-2 (load dump: 12 V system → +35 V/1 s) and ISO 7637-3 (capacitive coupling burst) without additional filtering. |
Use Scenario: Safeguarding 24 V DC digital input modules in programmable logic controllers against field-wiring induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing >1 kV/500 A surges on isolated input channels, maintaining functional safety integrity per IEC 61000-4-5 Level 4. Use Value: Eliminates need for discrete RC snubbers or gas discharge tubes, reducing BOM count and board space while sustaining >100,000 surge cycles. |
| Telecom Line Interface | Consumer Power Adapter Output |
Use Scenario: Shielding Ethernet PHY magnetics and PoE-powered device inputs from lightning-induced common-mode surges on outdoor cabling. IC Role / Device Role / Timing Role: Bidirectional TVS mounted differential-to-ground on RJ45 jack, clamping mode-split transients before reaching PHY IC. Use Value: Achieves IEC 61000-4-5 4 kV line-earth surge immunity without compromising 100BASE-TX signal integrity (CJ < 100 pF at 0 V). |
Use Scenario: Secondary-side overvoltage protection on 5–20 V USB-C PD and Qi wireless charging adapters exposed to output short-circuit recovery spikes. IC Role / Device Role / Timing Role: Fast-response shunt element across output capacitor, limiting post-regulator overshoot to ≤18.2 V during transient load steps. Use Value: Prevents damage to connected devices (e.g., smartphones, earbuds) during adapter fault conditions while meeting UL 62368-1 transient withstand requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13CA | Lower PPPM (600 W), same VBR/VC, SMB package (smaller footprint, higher RθJA = 90 °C/W) | Less suitable for high-energy automotive load-dump; preferred where board space is constrained and surge energy ≤600 W. | Select SMBJ13CA only if system-level testing confirms 600 W suffices and thermal margin permits higher junction temperature rise. |
| 1.5KE13CA | Through-hole DO-201 package, identical electrical specs but incompatible with SMT assembly and AEC-Q101 qualification. | Not viable for automotive or high-volume automated production; limited to prototyping or legacy through-hole designs. | Choose 1.5KE13CA only for hand-soldered evaluation or non-automotive repair scenarios where SMT is unavailable. |
Compared with SMBJ13CA and 1.5KE13CA, the 1.5SMC13CAHM3/H uniquely combines AEC-Q101 qualification, 1500 W surge capacity, and SMC package manufacturability - making it the sole option for production-grade automotive and industrial SMT applications requiring full ISO 7637-2 compliance.
Availability
1.5SMC13CAHM3/H is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC I/O modules, telecom line interface protection, and consumer power adapter secondary-side surge suppression requiring stable component supply and long-term lifecycle support.
Supply support for 1.5SMC13CAHM3/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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The 1.5SMC Series was engineered specifically for surface-mount transient suppression in harsh environments - emphasizing AEC-Q101 qualification, high-power pulse handling, and automated assembly compatibility.
FAQ
What is the clamping voltage of the 1.5SMC13CAHM3/H and how does it protect downstream circuits?
The 1.5SMC13CAHM3/H clamps at 18.2 V when subjected to its rated 82.4 A peak pulse current (10/1000 μs). This limits the voltage seen by protected components - such as microcontrollers or transceivers - to a safe level during transient events like ESD or inductive switching. Its fast response time (<1 ns) ensures clamping occurs before sensitive devices experience overstress, preserving functionality and lifetime.
Is the 1.5SMC13CAHM3/H suitable for automotive applications?
Yes, the 1.5SMC13CAHM3/H is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant construction validated for automotive use. It meets critical requirements for under-hood and cabin modules, including temperature cycling, high-temperature reverse bias life testing, and surge immunity per ISO 7637-2 - making it appropriate for engine control units, ADAS sensors, and body electronics.
How does the bidirectional nature of the 1.5SMC13CAHM3/H affect its placement on the PCB?
The 1.5SMC13CAHM3/H has no polarity marking and functions identically in both directions, so it can be placed without orientation constraints between any two nodes requiring symmetric overvoltage protection - such as differential signal pairs (e.g., RS-485, CAN), AC-coupled lines, or floating grounds. This simplifies layout, eliminates assembly errors, and ensures consistent clamping for positive and negative transients.
What is the thermal resistance of the 1.5SMC13CAHM3/H and why does it matter for PCB design?
The 1.5SMC13CAHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. This value dictates how much the junction temperature rises under sustained power dissipation - critical for ensuring long-term reliability during repetitive surges. Designers must allocate adequate copper area and avoid thermal bottlenecks to stay within the 150 °C TJ max limit.
Does the 1.5SMC13CAHM3/H require derating at elevated ambient temperatures?
Yes, the 1.5SMC13CAHM3/H must be derated above 25 °C ambient per Figure 2 in the Vishay datasheet (Document Number: 88303). At 85 °C ambient, its peak pulse power drops to ~70 % of 1500 W, and at 125 °C, it falls to ~35 %. This derating ensures safe operation without thermal runaway and must be factored into system-level surge test planning and worst-case thermal analysis.
1.5SMC13CAHM3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 11.1V
- Voltage - Breakdown (Min):
- 12.4V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 82.4A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC13CAHM3/H FAQ
1.How can I place an order for 1.5SMC13CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC13CAHM3/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 1.5SMC13CAHM3/H reliable?
The price and inventory of 1.5SMC13CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC13CAHM3/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC13CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC13CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC13CAHM3/H?
1.5SMC13CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC13CAHM3/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 1.5SMC13CAHM3/H?
For technical support, including 1.5SMC13CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC13CAHM3/H requirements.
6.How does Aetrix verify that 1.5SMC13CAHM3/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC13CAHM3/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 1.5SMC13CAHM3/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC13CAHM3/H?
All 1.5SMC13CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC13CAHM3/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 1.5SMC13CAHM3/H part is unused and in its original packaging.
Return procedure for 1.5SMC13CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC13CAHM3/H Tags
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