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Vishay General Semiconductor - Diodes Division 1.5SMC36CAHE3/57T
- Part No.:
- 1.5SMC36CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC36CAHE3/57T.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:3,455
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Product details
Overview
1.5SMC36CAHE3/57T 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 1.5SMC36CAHE3/57T datasheet, 1.5SMC36CAHE3/57T pinout, 1.5SMC36CAHE3/57T application, or 1.5SMC36CAHE3/57T equivalent, this AEC-Q101-qualified TVS offers verified bidirectional clamping, low incremental surge resistance, and MSL Level 1 moisture sensitivity - critical for high-reliability automotive and industrial designs requiring repeatable transient suppression without polarity constraints.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering identical clamping behavior for positive and negative transients - essential for AC-coupled or floating signal paths. Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ns), while the SMC (DO-214AB) package supports automated placement and meets UL 94 V-0 flammability rating.
The device is rated for 150 °C maximum junction temperature and derates linearly above 25 °C ambient per Fig. 2; thermal resistance is 75 °C/W (junction-to-ambient) and 15 °C/W (junction-to-leads). It sustains repetitive 10/1000 μs pulses at 0.01% duty cycle and complies with JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 30.8 V - Maximum continuous reverse voltage before conduction begins; defines safe operating window for protected circuitry. |
| VBR (Breakdown Voltage) | 34.2–37.8 V at 1 mA - Voltage at which device enters avalanche breakdown; tight tolerance enables precise protection threshold setting. |
| VC (Clamping Voltage) | 49.9 V at 30.1 A IPPM - Peak voltage seen by downstream circuit during worst-case 10/1000 μs transient; determines stress on protected ICs. |
| PPPM (Peak Pulse Power) | 1500 W - Maximum transient energy absorption capability under standardized 10/1000 μs waveform; validates surge immunity level. |
| ID (Reverse Leakage) | 1.0 μA at VWM - Minimal leakage current ensures negligible standby power loss and signal integrity in high-impedance nodes. |
| TJ max. | 150 °C - Maximum junction temperature rating; supports operation in under-hood automotive and industrial environments. |
| 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), surface-mount, bidirectional configuration with no polarity marking - symmetrical terminal layout suitable for AC or floating-line protection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals function identically; bidirectional clamping occurs regardless of voltage polarity applied across the device. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses, or ungrounded lines without polarity concerns. |
| 1500 W peak pulse power | Withstands high-energy surges such as ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 Combination Wave (10/700 μs). |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without pre-baking; simplifies manufacturing integration. |
| Glass-passivated junction | Ensures long-term stability of breakdown voltage and low leakage drift over temperature and lifetime. |
| AEC-Q101 qualification | Validates suitability for automotive applications including engine control units, ADAS sensors, and body electronics. |
Applications
| Automotive Sensor Interface | Industrial PLC Analog Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and MEMS pressure/temperature sensors from load dump and ESD events in vehicle ECUs. IC Role / Device Role: Bidirectional TVS placed at connector entry point to clamp transients before reaching signal conditioning circuitry. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V sensor interface ICs during 12 V/24 V system surges. |
Use Scenario: Safeguarding 4–20 mA current loop inputs in programmable logic controllers exposed to field wiring transients. IC Role / Device Role: Primary overvoltage clamp on input terminals, working in concert with series current-limiting resistors. Use Value: Maintains analog accuracy by limiting input voltage to ≤50 V during 1 kV/500 A surge events per IEC 61000-4-5. |
| Telecom Line Protection | Consumer USB Port ESD Clamp |
Use Scenario: Shielding Ethernet PHYs and PoE injectors from lightning-induced surges on outdoor data lines. IC Role / Device Role: First-stage protector on RJ45 jack side, absorbing bulk surge energy before secondary TVS or GDT stages. Use Value: Survives repeated 10/1000 μs surges up to 1500 W without degradation, extending system field life. |
Use Scenario: Adding robust ESD immunity to USB 2.0 data lines in smart home hubs and portable media devices. IC Role / Device Role: Low-capacitance bidirectional clamp across D+/D− lines, minimizing signal distortion. Use Value: Passes IEC 61000-4-2 ±15 kV contact discharge with sub-50 V clamping, preserving high-speed signal integrity. |
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/VC, SMB package (smaller footprint, higher RθJA = 100 °C/W) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a or IEC 61000-4-5 Level 4 | Select when board space is constrained and surge requirements are ≤600 W. |
| 1.5KE36CA | Through-hole DO-201 package, identical electrical specs but incompatible with SMT assembly | Requires manual or wave soldering; not viable for fully automated production or compact PCBs | Choose only for legacy through-hole designs or prototyping where rework tolerance is prioritized. |
Compared with SMBJ36CA and 1.5KE36CA, the 1.5SMC36CAHE3/57T delivers superior surge handling in an AEC-Q101-qualified SMT package - enabling automotive-grade reliability, automated manufacturing compatibility, and optimal thermal performance in space-constrained layouts.
Availability
1.5SMC36CAHE3/57T is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC analog inputs, and telecom line protection requiring stable component supply, AEC-Q101 compliance, and consistent 1500 W surge immunity.
Supply support for 1.5SMC36CAHE3/57T 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, efficiency, and application-specific optimization.
The 1.5SMC Series targets high-power transient suppression in automotive, industrial, and telecom systems - engineered for AEC-Q101 qualification, robust surge handling, and seamless SMT integration in harsh environments.
FAQ
What does the "CA" suffix indicate in 1.5SMC36CAHE3/57T?
The "CA" suffix denotes a bidirectional configuration - meaning the 1.5SMC36CAHE3/57T provides symmetrical clamping for both positive and negative voltage transients. Unlike unidirectional variants (e.g., 1.5SMC36A), it has no cathode band marking and functions identically regardless of polarity applied across its terminals, making it ideal for AC-coupled or floating signal lines.
Is 1.5SMC36CAHE3/57T qualified for automotive use?
Yes, the 1.5SMC36CAHE3/57T is AEC-Q101 qualified, as confirmed by Vishay's documentation and ordering code suffix "HE3". This qualification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD, validating its suitability for under-hood and chassis-mounted automotive electronics such as ADAS sensors and body control modules.
What is the clamping voltage of 1.5SMC36CAHE3/57T at its rated peak pulse current?
The 1.5SMC36CAHE3/57T has a maximum clamping voltage (VC) of 49.9 V at 30.1 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value represents the highest voltage imposed on protected circuitry during a worst-case transient event and is critical for ensuring downstream ICs remain within their absolute maximum ratings.
How does the SMC (DO-214AB) package of 1.5SMC36CAHE3/57T compare thermally to smaller packages like SMB?
The SMC package used in 1.5SMC36CAHE3/57T offers lower thermal resistance than SMB: RθJA is 75 °C/W versus ~100 °C/W for SMBJ devices. This allows the 1.5SMC36CAHE3/57T to sustain higher surge repetition rates and operate reliably at elevated ambient temperatures - especially important in enclosed automotive or industrial enclosures where heat dissipation is limited.
Can 1.5SMC36CAHE3/57T be used in place of unidirectional TVS diodes?
No - the 1.5SMC36CAHE3/57T is strictly bidirectional and must not replace unidirectional TVS diodes (e.g., 1.5SMC36A) in DC-biased circuits where forward conduction must be blocked. In such cases, using 1.5SMC36CAHE3/57T could cause unintended current flow during normal operation. Always verify polarity requirements and circuit topology before substitution.
1.5SMC36CAHE3/57T 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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
1.5SMC36CAHE3/57T FAQ
1.How can I place an order for 1.5SMC36CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC36CAHE3/57T 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 1.5SMC36CAHE3/57T reliable?
The price and inventory of 1.5SMC36CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC36CAHE3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC36CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC36CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC36CAHE3/57T?
1.5SMC36CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC36CAHE3/57T 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 1.5SMC36CAHE3/57T?
For technical support, including 1.5SMC36CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC36CAHE3/57T requirements.
6.How does Aetrix verify that 1.5SMC36CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC36CAHE3/57T 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 1.5SMC36CAHE3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC36CAHE3/57T?
All 1.5SMC36CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC36CAHE3/57T, 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 1.5SMC36CAHE3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC36CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC36CAHE3/57T Tags
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