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Vishay General Semiconductor - Diodes Division 1.5SMC110CAHM3/H
- Part No.:
- 1.5SMC110CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC110CAHM3/H.pdf
- Description:
- TVS DIODE 94VWM 152VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,847
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Product details
Overview
1.5SMC110CAHM3/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection. It features a 110 V breakdown voltage (VBR min/max: 105–116 V), 94.0 V stand-off voltage (VWM), 152 V clamping voltage (VC) at 9.9 A peak pulse current, and 1500 W peak pulse power capability with 10/1000 µs waveform - used to protect automotive sensor signal lines against lightning-induced transients and inductive switching spikes.
For engineers reviewing the 1.5SMC110CAHM3/H datasheet, 1.5SMC110CAHM3/H pinout, 1.5SMC110CAHM3/H application, or 1.5SMC110CAHM3/H equivalent, key selection considerations include its bidirectional polarity, AEC-Q101 qualification, halogen-free RoHS-compliant construction (HM3 suffix), and thermal resistance of 75 °C/W junction-to-ambient - critical for under-hood automotive ECU designs requiring reliable transient immunity without derating penalties.
Technical Context
This device operates as a voltage-clamped shunt protector: when reverse (or forward, in bidirectional mode) voltage exceeds VWM = 94.0 V, it avalanches into low-impedance conduction to divert surge energy away from downstream ICs. Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ns), while the SMC package supports automated placement and meets MSL level 1 (260 °C peak reflow).
The 1.5SMC110CAHM3/H is rated for repetitive 10/1000 µs surges at 0.01% duty cycle, with maximum junction temperature of +150 °C and thermal resistance RθJA = 75 °C/W on standard 8.0 mm × 8.0 mm copper pads - enabling robust operation in thermally constrained automotive modules without active cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 105 V / 116 V at 1 mA test current - defines precise avalanche onset window for predictable clamping behavior |
| VWM | 94.0 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA; sets safe margin below VBR |
| VC @ IPPM | 152 V at 9.9 A peak pulse current - actual clamped voltage seen by protected circuit during worst-case surge |
| PPPM | 1500 W - peak surge power handling with 10/1000 µs waveform; determines survivability against IEC 61000-4-5 Level 4 events |
| TJ max | +150 °C - enables deployment in under-hood automotive environments without thermal shutdown risk |
| RθJA | 75 °C/W - quantifies thermal bottleneck on standard PCB layout; informs heatsinking requirements for sustained surge duty |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per AEC specification |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional - no polarity marking; symmetrical cathode/anode terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Surge return path (bidirectional) | Connects to ground or common reference; completes low-impedance shunt path during either polarity transient |
| Cathode | Surge return path (bidirectional) | Electrically identical to Anode in CA devices; forms symmetrical clamp across protected line and reference |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Protects AC-coupled or floating signal lines (e.g., CAN, LIN, sensor bridges) without polarity concerns |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 4 kV surge (line-earth) without degradation when mounted per recommended pad layout |
| AEC-Q101 qualified (HM3) | Validated for automotive electronics per stress test schedule - eliminates need for additional qualification by Tier 1 suppliers |
| Halogen-free & RoHS-compliant | Meets EU ELV Directive and automotive OEM material compliance requirements (e.g., GMW3172, Ford WSS-M99P9999-A1) |
| MSL Level 1 | Zero floor life limitation - can be stored indefinitely at ≤30 °C/60% RH and assembled without baking |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting analog output lines of engine coolant temperature sensors exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Shunt TVS diode placed between signal line and chassis ground to clamp transients before reaching ADC input of microcontroller. Use Value: Prevents latch-up or permanent damage to 12-bit SAR ADCs during 12 V system load dump events (ISO 7637-2 Pulse 5a). |
Use Scenario: Safeguarding 4–20 mA current loop inputs in programmable logic controllers subjected to field wiring surges. IC Role / Device Role / Timing Role: Bidirectional clamp across loop terminals to suppress ±1 kV EFT bursts (IEC 61000-4-4) and 2 kV surge (IEC 61000-4-5). Use Value: Maintains loop integrity and prevents false triggering of safety interlocks during factory floor electrical noise events. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Shielding RS-485 transceivers in building automation gateways connected to long outdoor data cables. IC Role / Device Role / Timing Role: Differential-mode TVS pair (one per line) referenced to local ground to absorb lightning-induced common-mode surges. Use Value: Enables >10 kV (10/700 µs) immunity per ITU-T K.21 recommendation without adding series impedance or signal distortion. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in smart washing machine control boards. IC Role / Device Role / Timing Role: Clamp across motor terminals to limit back-EMF voltage spikes during PWM switching transitions. Use Value: Eliminates need for snubber RC networks, reducing BOM count and PCB area while maintaining IEC 60335-1 EMC compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110CA | Same VWM/VC but lower PPPM = 600 W; SMB package (smaller footprint, higher RθJA = 110 °C/W) | Limited to lower-energy surges (IEC 61000-4-5 Level 2); unsuitable for automotive load dump | Select when space-constrained and surge threat level is ≤1 kV; verify thermal margin with board-level simulation. |
| 1.5KE110CA | Same electrical specs but axial-leaded DO-15 package; not surface-mount; no AEC-Q101 qualification | Requires through-hole assembly; incompatible with automated SMT lines; not approved for automotive use | Use only for prototyping or legacy repair where SMT is unavailable; avoid in new automotive or industrial designs. |
Compared with SMBJ110CA and 1.5KE110CA, the 1.5SMC110CAHM3/H delivers full 1500 W surge capacity in an AEC-Q101-qualified SMT package - making it the sole option among the three for production automotive ECUs requiring zero-layout-change integration and guaranteed long-term supply stability.
Availability
1.5SMC110CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, telecom line interfaces, and consumer appliance motor controllers requiring stable component supply across multi-year production cycles.
Supply support for 1.5SMC110CAHM3/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 density, and process-controlled breakdown uniformity for mission-critical protection.
FAQ
What does the 'CA' suffix indicate in 1.5SMC110CAHM3/H?
The 'CA' suffix in 1.5SMC110CAHM3/H denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., 1.5SMC110AHM3/H), it has no polarity marking and functions identically in either orientation across the protected line, making it ideal for AC-coupled or floating signal paths such as CAN bus or bridge sensor outputs.
Is 1.5SMC110CAHM3/H qualified for automotive applications?
Yes, 1.5SMC110CAHM3/H is AEC-Q101 qualified, as confirmed by the 'HM3' suffix and Vishay documentation. This qualification covers stress tests including high-temperature reverse bias (HTRB), temperature cycling, and electrostatic discharge - validating its suitability for under-hood and cabin electronics in passenger vehicles and commercial trucks per ISO/TS 16949 requirements.
What is the clamping voltage of 1.5SMC110CAHM3/H at its rated peak pulse current?
The clamping voltage (VC) of 1.5SMC110CAHM3/H is 152 V at its specified peak pulse current (IPPM) of 9.9 A, measured using the standard 10/1000 µs double-exponential waveform. This value represents the maximum voltage imposed on the protected circuit during a full-rated surge event and is critical for ensuring downstream components remain within their absolute maximum ratings.
How does the SMC (DO-214AB) package of 1.5SMC110CAHM3/H compare thermally to smaller packages like SMB?
The SMC (DO-214AB) package of 1.5SMC110CAHM3/H offers significantly better thermal performance than SMB: its typical junction-to-ambient thermal resistance (RθJA) is 75 °C/W versus ~110 °C/W for SMBJ devices. This 32% improvement allows the 1.5SMC110CAHM3/H to sustain repeated 1500 W surges on standard PCB layouts without exceeding TJ = 150 °C, whereas SMB variants require larger copper areas or forced cooling.
Can 1.5SMC110CAHM3/H replace older through-hole TVS diodes like 1.5KE110CA?
While 1.5SMC110CAHM3/H matches the electrical specifications of 1.5KE110CA (same VWM, VBR, VC, and PPPM), it is not a direct drop-in replacement due to its SMC surface-mount package versus DO-15 axial leads. Layout redesign is required. However, the 1.5SMC110CAHM3/H adds AEC-Q101 qualification and halogen-free compliance - making it the preferred upgrade path for new automotive and industrial SMT designs.
1.5SMC110CAHM3/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):
- 94V
- Voltage - Breakdown (Min):
- 105V
- Voltage - Clamping (Max) @ Ipp:
- 152V
- Current - Peak Pulse (10/1000µs):
- 9.9A
- 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)
1.5SMC110CAHM3/H FAQ
1.How can I place an order for 1.5SMC110CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC110CAHM3/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 1.5SMC110CAHM3/H reliable?
The price and inventory of 1.5SMC110CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC110CAHM3/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC110CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC110CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC110CAHM3/H?
1.5SMC110CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC110CAHM3/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 1.5SMC110CAHM3/H?
For technical support, including 1.5SMC110CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC110CAHM3/H requirements.
6.How does Aetrix verify that 1.5SMC110CAHM3/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC110CAHM3/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 1.5SMC110CAHM3/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC110CAHM3/H?
All 1.5SMC110CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC110CAHM3/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 1.5SMC110CAHM3/H part is unused and in its original packaging.
Return procedure for 1.5SMC110CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC110CAHM3/H Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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