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Vishay General Semiconductor - Diodes Division 1.5SMC160CAHM3_A/I
- Part No.:
- 1.5SMC160CAHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC160CAHM3_A/I.pdf
- Description:
- TVS DIODE 136VWM 219VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,750
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Product details
Overview
1.5SMC160CAHM3_A/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMC (DO-214AB) package, designed for high-energy surge protection. It features a 160 V standoff voltage (VWM), 179 V minimum breakdown voltage (VBR), 219 V maximum clamping voltage (VC) at 6.8 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 μs waveform - deployed to safeguard automotive sensor signal lines, industrial I/O interfaces, and telecom power rails against lightning-induced transients and inductive switching spikes.
For engineers reviewing the 1.5SMC160CAHM3_A/I datasheet, 1.5SMC160CAHM3_A/I pinout, 1.5SMC160CAHM3_A/I application, or 1.5SMC160CAHM3_A/I equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), and compatibility with automated SMT assembly on standard 8.0 mm × 8.0 mm copper pads.
Technical Context
This device operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 MΩ at VWM), but switches to low-impedance conduction within <1 ns when transient voltage exceeds VBR, diverting surge current away from downstream circuitry. Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability under repetitive surges.
The 1.5SMC160CAHM3_A/I is rated for -65 °C to +150 °C operating junction temperature, supports 0.01% duty cycle repetitive pulses, and meets J-STD-020 MSL Level 1 (peak reflow ≤260 °C). Its halogen-free, RoHS-compliant construction and AEC-Q101 qualification confirm suitability for automotive-grade electronics where traceability and thermal robustness are mandatory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 160 V - Maximum continuous reverse working voltage before clamping initiates; defines safe operating margin below breakdown. |
| VBR (Breakdown) | 179–198 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping) | 219 V at IPPM = 6.8 A - Peak voltage seen by protected circuit during full-rated 1500 W transient; critical for IC survivability. |
| PPPM | 1500 W (10/1000 μs) - Surge energy handling capacity; enables protection against IEC 61000-4-5 Level 4 (4 kV) threats. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance on standard PCB pad layout; determines derating above 25 °C ambient. |
| TJ max. | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments. |
| AEC-Q101 | Qualified - Validated for automotive electronic systems per stress test requirements including HTGB, HTRB, and TCT. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional configuration with no polarity marking - symmetrical anode/cathode terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Surge return path (bidirectional) | Connects to protected line; conducts during positive or negative transients relative to reference ground. |
| Cathode | Surge return path (bidirectional) | Electrically identical to Anode in CA devices; forms symmetrical clamping pair across differential or single-ended lines. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns. |
| 1500 W peak pulse power | Supports IEC 61000-4-5 surge immunity up to 4 kV (line-to-ground) with minimal PCB footprint. |
| AEC-Q101 qualified | Validated for automotive applications including engine control modules, ADAS sensors, and infotainment power supplies. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declaration requirements for sustainable manufacturing. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking; simplifies SMT production planning. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN FD and LIN bus transceivers from load-dump and jump-start induced transients in vehicle body control modules. IC Role / Device Role / Timing Role: Bidirectional shunt TVS placed between signal line and chassis ground to clamp ±200 V surges within nanoseconds. Use Value: Prevents latch-up or permanent damage to transceiver ICs while maintaining signal integrity due to low capacitance (<100 pF at 0 V). |
Use Scenario: Safeguarding 24 V DC digital input channels in programmable logic controllers exposed to relay coil flyback and ESD events. IC Role / Device Role / Timing Role: Primary overvoltage clamp on field-side inputs, coordinated with series current-limiting resistors and optocouplers. Use Value: Enables >100,000 surge cycles at 1500 W without parameter drift, reducing field failure rates in factory automation systems. |
| Telecom Power Rail Protection | Consumer Appliance Motor Control |
Use Scenario: Shielding PoE-powered Ethernet switch ports from lightning-induced common-mode surges on twisted-pair cables. IC Role / Device Role / Timing Role: Paired bidirectional TVS on each data pair (e.g., pins 1–2 and 3–6), referenced to isolated DC supply ground. Use Value: Maintains IEEE 802.3af/at compliance by limiting clamped voltage to <220 V, preventing PHY IC damage during 6 kV surge tests. |
Use Scenario: Suppressing commutation spikes from universal motor brushes in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Mounted across motor terminals to absorb inductive kickback energy before reaching driver MOSFETs or microcontrollers. Use Value: Eliminates need for snubber RC networks, reducing BOM count and board space while sustaining 1500 W peak dissipation per event. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ160CA | Lower PPPM (600 W), same VWM/VBR range, SMB package (smaller footprint, higher RθJA = 100 °C/W) | Limited to lower-energy transients (IEC 61000-4-5 Level 2); unsuitable for automotive under-hood use above 85 °C ambient | Select when board space is constrained and surge threat level is ≤1 kV; verify thermal margin with RθJA derating. |
| 1.5KE160CA | Through-hole TO-218 package, identical electrical specs, higher IPPM (7.2 A), but no AEC-Q101 qualification | Not suitable for automated SMT lines or automotive qualification programs; requires wave soldering or hand assembly | Choose only for legacy through-hole designs or prototyping where reflow compatibility and automotive compliance are not required. |
Compared with SMBJ160CA and 1.5KE160CA, the 1.5SMC160CAHM3_A/I uniquely combines AEC-Q101 qualification, 1500 W surge rating, and SMC package manufacturability - making it the preferred choice for volume automotive and industrial SMT production where reliability, regulatory alignment, and process efficiency are jointly prioritized.
Availability
1.5SMC160CAHM3_A/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom power rail protection requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for 1.5SMC160CAHM3_A/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 diodes, rectifiers, MOSFETs, and protection devices with emphasis on high-reliability, automotive-qualified components.
The 1.5SMC Series was engineered specifically for robust, high-power transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where AEC-Q101 validation and 1500 W surge capability are essential design requirements.
FAQ
What is the clamping voltage of the 1.5SMC160CAHM3_A/I at its rated peak pulse current?
The 1.5SMC160CAHM3_A/I has a maximum clamping voltage (VC) of 219 V at its rated peak pulse current (IPPM) of 6.8 A, measured with a 10/1000 μs waveform. This value is specified in the Vishay datasheet (Document Number: 88303, page 2) and defines the upper voltage limit imposed on protected circuitry during full-rated surge events. The 1.5SMC160CAHM3_A/I maintains this clamping performance across its qualified temperature range (-65 °C to +150 °C) when mounted per recommended pad layout.
Is the 1.5SMC160CAHM3_A/I suitable for automotive applications?
Yes, the 1.5SMC160CAHM3_A/I is AEC-Q101 qualified, as confirmed by its HM3 suffix and documentation in the Vishay 1.5SMC Series datasheet (Revision: 09-Mar-2026). It undergoes stress testing including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling (TCT) per automotive standards. The 1.5SMC160CAHM3_A/I is explicitly recommended for engine control units, ADAS sensors, and body electronics where transient immunity and long-term reliability are mandated.
What does the "CA" suffix indicate in 1.5SMC160CAHM3_A/I?
The "CA" suffix in 1.5SMC160CAHM3_A/I denotes a bidirectional Transient Voltage Suppressor configuration. Unlike unidirectional variants (e.g., 1.5SMC160AHM3_A/I), the CA version provides symmetrical clamping for both positive and negative voltage transients without polarity dependence. This eliminates orientation constraints during placement and enables protection of AC-coupled, differential, or floating signal paths - a key feature confirmed in the Vishay datasheet section "DEVICES FOR BIDIRECTION APPLICATIONS".
What is the thermal resistance of the 1.5SMC160CAHM3_A/I, and how does it affect layout?
The 1.5SMC160CAHM3_A/I 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, as specified in the Vishay datasheet (page 3, Thermal Characteristics table). This value directly governs power derating: at 70 °C ambient, the device must be operated below ~3.6 W continuous dissipation to maintain TJ ≤150 °C. Layout must replicate the recommended pad dimensions and avoid thermal isolation to ensure accurate thermal performance.
How does the 1.5SMC160CAHM3_A/I compare to unidirectional versions like 1.5SMC160AHM3_A/I?
The 1.5SMC160CAHM3_A/I differs from unidirectional 1.5SMC160AHM3_A/I in clamping symmetry and terminal function: the CA variant clamps equally for ±160 V transients with no cathode band marking, while the A version has polarity-sensitive conduction and requires correct orientation. Electrically, both share identical VWM (160 V), VBR (179–198 V), and PPPM (1500 W), but only the CA type supports AC or floating-line protection. The 1.5SMC160CAHM3_A/I datasheet confirms bidirectional electrical characteristics apply in both directions.
1.5SMC160CAHM3_A/I 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 136V
- Voltage - Breakdown (Min):
- 152V
- Voltage - Clamping (Max) @ Ipp:
- 219V
- Current - Peak Pulse (10/1000µs):
- 6.8A
- 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)
1.5SMC160CAHM3_A/I FAQ
1.How can I place an order for 1.5SMC160CAHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC160CAHM3_A/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 1.5SMC160CAHM3_A/I reliable?
The price and inventory of 1.5SMC160CAHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC160CAHM3_A/I is usually 5 days.
3.What payment methods are accepted for 1.5SMC160CAHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC160CAHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC160CAHM3_A/I?
1.5SMC160CAHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC160CAHM3_A/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 1.5SMC160CAHM3_A/I?
For technical support, including 1.5SMC160CAHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC160CAHM3_A/I requirements.
6.How does Aetrix verify that 1.5SMC160CAHM3_A/I is sourced from the original manufacturer or authorized distributors?
All 1.5SMC160CAHM3_A/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 1.5SMC160CAHM3_A/I meets industry standards.
7.What is the process for return or replacement of 1.5SMC160CAHM3_A/I?
All 1.5SMC160CAHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC160CAHM3_A/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 1.5SMC160CAHM3_A/I part is unused and in its original packaging.
Return procedure for 1.5SMC160CAHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC160CAHM3_A/I Tags
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