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Vishay General Semiconductor - Diodes Division SMCJ160CAHM3/H
- Part No.:
- SMCJ160CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ160CAHM3/H.pdf
- Description:
- TVS DIODE 160VWM 259VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,996
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Product details
Overview
SMCJ160CAHM3/H from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 1500 W peak pulse power rating, 160 V standoff voltage (VWM), and clamping voltage of 259 V at 5.8 A peak pulse current. It protects sensitive MOSFETs, ICs, and sensor signal lines in automotive power systems and industrial motor drives.
For engineers reviewing the SMCJ160CAHM3/H datasheet, SMCJ160CAHM3/H pinout, SMCJ160CAHM3/H application, or SMCJ160CAHM3/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, halogen-free RoHS compliance, and thermal resistance (RθJA = 75 °C/W) for board-level reliability under repetitive surge stress.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector, responding within picoseconds to transients exceeding its 160 V reverse standoff voltage. Its bidirectional architecture enables symmetrical clamping in AC-coupled or floating signal paths without polarity constraints.
Constructed with glass-passivated junction and rated for TJ = –55 °C to +150 °C, the SMCJ160CAHM3/H delivers stable clamping performance across automotive temperature cycles and meets MSL Level 1 reflow requirements (260 °C peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 160 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 178 V / 197 V - Breakdown occurs within this range at 1 mA test current, defining turn-on threshold |
| VC @ IPPM | 259 V - Clamped voltage during 5.8 A 10/1000 µs surge, limiting downstream voltage stress |
| PPPM | 1500 W - Peak transient energy absorption capacity per IEC 61000-4-5 waveform |
| ID @ VWM | 1.0 µA - Reverse leakage at full standoff voltage, ensuring minimal standby power loss |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance on standard 8 mm × 8 mm copper pads |
| TJ max | +150 °C - Maximum junction temperature enabling operation in under-hood automotive environments |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, halogen-free, matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. Bidirectional construction means no polarity marking; both terminals are functionally symmetric.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive half-cycle) | Accepts surge current during positive voltage excursion relative to cathode reference |
| Cathode | Transient current entry (negative half-cycle) | Accepts surge current during negative voltage excursion; functionally identical to anode in bidirectional mode |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals or floating buses without external polarity management |
| AEC-Q101 qualified | Validated for automotive powertrain and chassis applications requiring zero defect reliability over temperature cycling |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a/5a) |
| MSL Level 1 rating | Supports lead-free reflow up to 260 °C without popcorn cracking or delamination |
| UL 94 V-0 molding compound | Ensures flame retardancy in enclosed enclosures meeting IEC 62368-1 safety requirements |
Applications
| Automotive Power Distribution | Industrial Motor Drive Control |
|---|---|
Use Scenario: Protecting gate drivers and MCU inputs from load dump and inductive kickback in 12 V/24 V vehicle electrical systems. IC Role / Device Role / Timing Role: Shunt clamping device placed across DC bus or signal line to clamp surges above 160 V. Use Value: Limits transient voltage to ≤259 V, preventing damage to 3.3 V/5 V logic interfaces and MOSFET gate oxides rated ≤30 V. | Use Scenario: Safeguarding encoder feedback lines and analog sensor inputs in variable-frequency drives exposed to EMI from PWM switching. IC Role / Device Role / Timing Role: Bidirectional voltage limiter on differential RS-422 or analog ±10 V inputs. Use Value: Maintains signal integrity by clamping common-mode transients while adding <1.0 µA leakage at 160 V standoff. |
| Telecom Power Interface | Consumer Appliance Mainboard |
Use Scenario: Surge protection on PoE-powered Ethernet ports and AC/DC adapter inputs subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Primary-stage TVS placed before input filter capacitors to absorb 1500 W 10/1000 µs pulses. Use Value: Withstands repeated 1 kV/0.5 kA surges per IEC 61000-4-5 without degradation due to low thermal resistance (75 °C/W). | Use Scenario: Protecting microcontroller reset lines and communication buses (I²C, UART) in washing machines and HVAC controllers exposed to relay contact bounce. IC Role / Device Role / Timing Role: Localized clamping element adjacent to IC pins to suppress sub-100 ns ESD and switching noise. Use Value: Fast response time and 259 V clamping prevent latch-up in 3.3 V MCUs while supporting automated SMT placement via low-profile SMC package. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ160CAHM3/H | Lower PPPM (600 W), same VWM (160 V), SMB (DO-214AA) package with higher RθJA (110 °C/W) | Reduced surge margin; suitable only for lower-energy transients or space-constrained layouts | Select when board area is critical and surge threat level is limited to IEC 61000-4-2 Level 3 (8 kV contact) |
| SMCJ160AHE3/H | Unidirectional variant; identical VWM, VC, and PPPM; same SMC package but marked cathode band | Requires correct polarity orientation; not usable on AC or floating nodes | Choose only for DC-biased rails where polarity is fixed and reverse conduction must be blocked |
Compared with SMBJ160CAHM3/H and SMCJ160AHE3/H, the SMCJ160CAHM3/H uniquely combines 1500 W surge capacity, bidirectional symmetry, and AEC-Q101 qualification-making it the only option for automotive-grade AC-coupled protection without redesigning layout or derating surge margin.
Availability
SMCJ160CAHM3/H is available at Aetrix Electronics and suitable for automotive electronics, industrial motor control, telecom infrastructure, and consumer appliance designs requiring stable component supply with long-term lifecycle assurance.
Supply support for SMCJ160CAHM3/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 diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability and automotive qualification.
The SMCJ series targets high-energy transient suppression in harsh environments, with design focus on AEC-Q101 compliance, low clamping ratio, and robust thermal performance for under-hood and factory-floor applications.
FAQ
What is the clamping voltage of the SMCJ160CAHM3/H at its rated peak pulse current?
The SMCJ160CAHM3/H clamps to 259 V when subjected to its specified peak pulse current of 5.8 A under a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures downstream components see no more than 259 V during surge events. The SMCJ160CAHM3/H maintains this clamping performance across its full operating temperature range of –55 °C to +150 °C.
Is the SMCJ160CAHM3/H suitable for automotive applications?
Yes, the SMCJ160CAHM3/H is AEC-Q101 qualified and specifically designed for automotive use. Its halogen-free, RoHS-compliant construction (HM3 suffix), MSL Level 1 reflow rating, and guaranteed operation from –55 °C to +150 °C meet stringent automotive environmental requirements. The SMCJ160CAHM3/H is commonly deployed in body control modules, ADAS power supplies, and infotainment system protection circuits.
How does the bidirectional configuration of the SMCJ160CAHM3/H affect circuit layout?
The SMCJ160CAHM3/H has no polarity marking and functions identically in both directions, eliminating orientation constraints during PCB layout and automated placement. Unlike unidirectional variants such as SMCJ160AHE3/H, the SMCJ160CAHM3/H can protect AC-coupled lines, differential buses, or floating sensors without requiring cathode alignment. This simplifies design reuse across multiple interface types.
What is the thermal resistance of the SMCJ160CAHM3/H, and how does it impact PCB design?
The SMCJ160CAHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads per terminal. To maintain safe junction temperatures during repeated surges, designers must provide adequate copper area and avoid excessive trace length between the SMCJ160CAHM3/H and ground planes. Thermal performance directly affects surge endurance and long-term reliability.
Does the SMCJ160CAHM3/H meet UL safety standards?
Yes, the SMCJ160CAHM3/H carries Underwriters Laboratories recognition under UL 497B (QVGQ2) for protector classification, with file number E136766. Its UL 94 V-0 compliant molding compound ensures flame resistance, and its construction satisfies isolation and creepage requirements for primary-side surge protection in end equipment certified to IEC 62368-1 and IEC 60950-1.
SMCJ160CAHM3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 160V
- Voltage - Breakdown (Min):
- 178V
- Voltage - Clamping (Max) @ Ipp:
- 259V
- Current - Peak Pulse (10/1000µs):
- 5.8A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMCJ160CAHM3/H FAQ
1.How can I place an order for SMCJ160CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ160CAHM3/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 SMCJ160CAHM3/H reliable?
The price and inventory of SMCJ160CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ160CAHM3/H is usually 5 days.
3.What payment methods are accepted for SMCJ160CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ160CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ160CAHM3/H?
SMCJ160CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ160CAHM3/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 SMCJ160CAHM3/H?
For technical support, including SMCJ160CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ160CAHM3/H requirements.
6.How does Aetrix verify that SMCJ160CAHM3/H is sourced from the original manufacturer or authorized distributors?
All SMCJ160CAHM3/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 SMCJ160CAHM3/H meets industry standards.
7.What is the process for return or replacement of SMCJ160CAHM3/H?
All SMCJ160CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ160CAHM3/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 SMCJ160CAHM3/H part is unused and in its original packaging.
Return procedure for SMCJ160CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ160CAHM3/H Tags
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