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Vishay General Semiconductor - Diodes Division 1.5SMC36CAHM3_A/H
- Part No.:
- 1.5SMC36CAHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC36CAHM3_A/H.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,720
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Product details
Overview
1.5SMC36CAHM3_A/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 36 V standoff voltage (VWM), 49.9 V clamping voltage (VC) at 30.1 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and telecom line protection.
For engineers reviewing the 1.5SMC36CAHM3_A/H datasheet, 1.5SMC36CAHM3_A/H pinout, 1.5SMC36CAHM3_A/H application, or 1.5SMC36CAHM3_A/H equivalent, key selection criteria include bidirectional clamping behavior, AEC-Q101 qualification, SMC (DO-214AB) package thermal performance, and compliance with UL 497B surge protector requirements.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection against polarity-agnostic transients like ESD, lightning-induced surges, and inductive switching spikes without requiring orientation-specific PCB layout. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 μA at VWM).
The device delivers 1500 W peak pulse power handling per 10/1000 μs waveform under derated conditions, with thermal resistance of 75 °C/W (junction-to-ambient) and 15 °C/W (junction-to-leads), supporting reliable operation up to 150 °C junction temperature in compact SMC footprint layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 30.8 V - maximum continuous reverse operating voltage before clamping begins; defines safe operating margin below system rail. |
| VBR (Breakdown Voltage) | 34.2–37.8 V at 1.0 mA - precise voltage threshold where avalanche conduction initiates; tight tolerance supports predictable protection timing. |
| VC (Clamping Voltage) | 49.9 V at IPPM = 30.1 A - peak voltage seen by protected circuit during worst-case transient; critical for IC-level survivability. |
| PPPM (Peak Pulse Power) | 1500 W - energy-handling capacity for standardized 10/1000 μs surge; enables compliance with IEC 61000-4-5 Level 4. |
| TJ max. | 150 °C - maximum junction temperature rating; allows use in under-hood automotive environments and high-ambient industrial enclosures. |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 8.0 mm × 8.0 mm copper pad requirement; supports automated placement and reflow. |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL level 1 (260 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; common node in bidirectional configuration | No polarity marking required; symmetrical terminals enable orientation-agnostic PCB routing and simplified layout. |
| Cathode | Current exit terminal in forward bias; common node in bidirectional configuration | Identical physical terminal as Anode; bidirectional operation eliminates need for cathode band identification. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints or external diode pairing. |
| 1500 W peak pulse power | Meets IEC 61000-4-5 surge immunity requirements for industrial and automotive applications with minimal board area. |
| AEC-Q101 qualification | Validated for automotive electronics including engine control units, ADAS sensors, and body control modules. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ESD > 30 kV), improving protection margin for sensitive CMOS inputs. |
| Halogen-free & RoHS-compliant | Complies with environmental regulations for global OEM supply chains and end-of-life recycling requirements. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS placed directly at connector interface to clamp transients before reaching PHY layer. Use Value: Maintains signal integrity under 12 V/24 V automotive supply variations while surviving repetitive 100 V/100 ms load dump events. |
Use Scenario: Shielding digital input/output channels on programmable logic controllers from field-induced surges and ground loop transients. IC Role / Device Role / Timing Role: Primary front-end protection element on isolated 24 V DC I/O terminals, upstream of optocouplers or digital isolators. Use Value: Limits transient voltage to <50 V during 1 kV/500 A IEC 61000-4-5 combination wave tests, preventing latch-up in microcontroller GPIOs. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Safeguarding Ethernet PHYs, RS-485 transceivers, and DSL line drivers against lightning-induced surges on outdoor-facing ports. IC Role / Device Role / Timing Role: First-stage clamping device in multi-stage protection architecture, absorbing bulk surge energy before secondary MOV/GDT stages. Use Value: Withstands 10/1000 μs surges up to 1500 W without degradation, extending system MTBF in unshielded outdoor deployments. |
Use Scenario: Overvoltage suppression on primary-side rectifier outputs in universal-input AC/DC adapters for smart home devices. IC Role / Device Role / Timing Role: Secondary surge limiter after bridge rectifier, protecting downstream PWM controller ICs from line-switching transients. Use Value: Clamps 300 VAC line spikes to <50 V within nanoseconds, eliminating need for oversized input capacitors or additional snubbers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36CA | Lower PPPM (600 W), same VWM (30.8 V), SMB package (smaller footprint, higher RθJA = 85 °C/W) | Suitable for space-constrained consumer electronics but not for automotive or industrial surge levels requiring 1500 W | Select when board area is critical and surge threat level is limited to IEC 61000-4-2 ESD only. |
| 1.5KE36CA | Through-hole DO-201 package, identical electrical specs, higher mechanical robustness but no SMT compatibility | Used in legacy industrial power supplies where manual assembly or high-vibration mounting is required | Choose only if SMT process is unavailable or mechanical shock resistance outweighs automated manufacturing benefits. |
Compared with SMBJ36CA and 1.5KE36CA, the 1.5SMC36CAHM3_A/H uniquely combines AEC-Q101 qualification, 1500 W surge capability, and SMC surface-mount compatibility - making it the preferred choice for new automotive and high-reliability industrial designs requiring production scalability and thermal performance.
Availability
1.5SMC36CAHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor systems, industrial PLCs, telecom infrastructure equipment, and consumer power adapters requiring stable component supply across extended product lifecycles.
Supply support for 1.5SMC36CAHM3_A/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The 1.5SMC Series is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where robustness, AEC-Q101 compliance, and consistent clamping performance are mandatory.
FAQ
What is the clamping voltage of the 1.5SMC36CAHM3_A/H at its rated peak pulse current?
The 1.5SMC36CAHM3_A/H has a maximum clamping voltage (VC) of 49.9 V at its specified peak pulse current (IPPM) of 30.1 A, measured using the standard 10/1000 μs double-exponential waveform. This value ensures protected downstream ICs experience less than 50 V during worst-case surge events, aligning with typical 3.3 V or 5 V logic rail tolerances. The 1.5SMC36CAHM3_A/H maintains this clamping performance across its full operating temperature range of –65 °C to +150 °C.
Is the 1.5SMC36CAHM3_A/H suitable for automotive applications?
Yes, the 1.5SMC36CAHM3_A/H is AEC-Q101 qualified and specifically designated for automotive use via its "HM3" suffix, indicating halogen-free, RoHS-compliant, and AEC-Q101 validated construction. It meets requirements for engine control units, ADAS camera modules, and body electronics exposed to load dump, jump start, and ISO 7637-2 pulses. The 1.5SMC36CAHM3_A/H is rated for continuous operation up to 150 °C junction temperature, supporting under-hood deployment.
How does the bidirectional design of the 1.5SMC36CAHM3_A/H affect PCB layout?
The 1.5SMC36CAHM3_A/H has no polarity marking and functions identically in both directions, eliminating orientation constraints during placement. Unlike unidirectional TVS diodes, it requires no cathode band alignment - simplifying pick-and-place programming and reducing assembly errors. This symmetry also enables direct replacement of dual-diode configurations in AC-coupled circuits, cutting BOM count and board space. The 1.5SMC36CAHM3_A/H achieves this without sacrificing clamping precision or surge rating.
What is the thermal resistance profile of the 1.5SMC36CAHM3_A/H?
The 1.5SMC36CAHM3_A/H exhibits a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-leads resistance (RθJL) of 15 °C/W when mounted on the recommended 8.0 mm × 8.0 mm copper pads per terminal. These values enable effective heat dissipation during repetitive surge events and support sustained power dissipation up to 6.5 W at 50 °C ambient. The 1.5SMC36CAHM3_A/H's low RθJL is especially valuable in high-current transient scenarios where localized heating must be rapidly conducted away from the junction.
Does the 1.5SMC36CAHM3_A/H meet any safety certifications?
Yes, the 1.5SMC36CAHM3_A/H carries Underwriters Laboratories (UL) recognition under file number E136766 for both unidirectional and bidirectional configurations, complying with UL 497B for surge protective devices. It also meets MSL level 1 per J-STD-020 (peak reflow temperature 260 °C), ensuring robustness during lead-free soldering. The 1.5SMC36CAHM3_A/H's molding compound is UL 94 V-0 rated, confirming flame-retardant performance in end-equipment safety assessments.
1.5SMC36CAHM3_A/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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 30.1A
- 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)
1.5SMC36CAHM3_A/H FAQ
1.How can I place an order for 1.5SMC36CAHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC36CAHM3_A/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 1.5SMC36CAHM3_A/H reliable?
The price and inventory of 1.5SMC36CAHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC36CAHM3_A/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC36CAHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC36CAHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC36CAHM3_A/H?
1.5SMC36CAHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC36CAHM3_A/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 1.5SMC36CAHM3_A/H?
For technical support, including 1.5SMC36CAHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC36CAHM3_A/H requirements.
6.How does Aetrix verify that 1.5SMC36CAHM3_A/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC36CAHM3_A/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 1.5SMC36CAHM3_A/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC36CAHM3_A/H?
All 1.5SMC36CAHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC36CAHM3_A/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 1.5SMC36CAHM3_A/H part is unused and in its original packaging.
Return procedure for 1.5SMC36CAHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC36CAHM3_A/H Tags
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