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Vishay General Semiconductor - Diodes Division SMCJ36CAHE3/57T
- Part No.:
- SMCJ36CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ36CAHE3/57T.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,992
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Product details
Overview
SMCJ36CAHE3/57T from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients up to 1500 W peak pulse power with 58.1 V maximum clamping voltage at 25.8 A peak pulse current, 36 V standoff voltage, and -55 °C to +150 °C operating junction temperature - deployed in automotive sensor signal line protection and industrial I/O interface surge suppression.
For engineers reviewing the SMCJ36CAHE3/57T datasheet, SMCJ36CAHE3/57T pinout, SMCJ36CAHE3/57T application, or SMCJ36CAHE3/57T equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 1500 W 10/1000 μs surge rating, low incremental surge resistance, and RoHS-compliant matte tin-plated leads suitable for automated placement on PCBs with 8 mm × 8 mm copper pads.
Technical Context
This device operates as a voltage-clamping protector using an avalanche breakdown mechanism, with symmetrical bidirectional behavior enabling suppression of both positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 μA at 36 V), while MSL Level 1 moisture sensitivity supports lead-free reflow up to 260 °C peak.
The SMCJ36CAHE3/57T delivers 58.1 V clamping voltage at 25.8 A IPPM under standardized 10/1000 μs waveform conditions, with thermal resistance of 75 °C/W (junction-to-ambient) and 15 °C/W (junction-to-lead), enabling reliable operation in high-density layouts when mounted per recommended 0.31" × 0.31" copper pad footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 1500 W - sustains high-energy lightning or ESD-induced surges without failure |
| Standoff Voltage (VWM) | 36 V - blocks normal operating signals up to 36 V DC while remaining non-conductive |
| Clamping Voltage (VC @ IPPM) | 58.1 V - limits transient voltage seen by downstream ICs to ≤58.1 V at 25.8 A surge |
| Breakdown Voltage (VBR min/max) | 40.0 V / 44.2 V - ensures consistent avalanche initiation across production lots |
| Operating Temperature Range | -55 °C to +150 °C - supports under-hood automotive and industrial environments |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling and HTRB |
| Package | SMC (DO-214AB) - surface-mount outline with 7.75 mm × 6.22 mm body and 2.62 mm height |
Pinout & Package
SMCJ36CAHE3/57T uses the SMC (DO-214AB) package: a 2-terminal surface-mount case with no polarity marking for bidirectional operation. Terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity - no marking required |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 1; symmetric conduction enables dual-polarity clamping |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines without polarity concerns |
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| 1500 W peak pulse rating | Withstands IEC 61000-4-5 Level 4 (4 kV) surge events on industrial fieldbus lines |
| Glass passivated junction | Ensures long-term stability of VBR and low leakage (<1.0 μA) over temperature and lifetime |
| MSL Level 1 rating | Allows unlimited floor life and compatibility with standard lead-free reflow profiles (260 °C peak) |
Applications
| Automotive Sensor Protection | Industrial Fieldbus Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed directly at connector entry point to shunt surge energy before reaching signal conditioning circuitry. Use Value: Limits transient voltage to ≤58.1 V, preventing damage to 3.3 V/5 V microcontrollers and analog front-ends while maintaining signal integrity. |
Use Scenario: Safeguarding RS-485/RS-422 transceivers in factory automation PLCs against EFT and surge events induced by motor drives and relay switching. IC Role / Device Role / Timing Role: Bidirectional transient suppressor installed across differential pair (A/B) and ground to clamp common-mode and differential-mode surges. Use Value: Maintains data integrity during 4 kV IEC 61000-4-5 surges without latch-up or parameter shift due to AEC-Q101 stress validation. |
| Consumer Power Adapter Input | Telecom Line Card Protection |
Use Scenario: Input-stage surge protection for AC-DC adapters and USB PD chargers exposed to mains-borne transients and hot-plug events. IC Role / Device Role / Timing Role: Primary clamping device placed after fuse and before bridge rectifier to absorb line-to-line and line-to-ground surges. Use Value: Withstands 1500 W pulses without degradation, enabling compact designs meeting UL 62368-1 transient immunity requirements. |
Use Scenario: Overvoltage protection on POTS (Plain Old Telephone Service) line cards and VoIP gateway interfaces subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional TVS connected between tip/ring and ground to suppress longitudinal and transverse mode transients per GR-1089-CORE. Use Value: Clamps 10/1000 μs surges to ≤58.1 V while exhibiting <1.0 μA leakage at 36 V, preserving low-noise line signaling performance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36CAHE3/52T | Lower PPPM (600 W), same VWM (36 V), SMB package (smaller footprint, higher RθJA) | Suitable for space-constrained consumer electronics where 600 W surge margin suffices | Select when board area is limited and full 1500 W rating is not required |
| SMCJ36CAHM3/57T | Identical electrical specs, halogen-free construction (vs. RoHS-only HE3), same AEC-Q101 qualification | Required for strict environmental compliance in EU automotive Tier 1 supply chains | Choose when halogen-free material declaration is mandatory per customer specification |
Compared with SMCJ36CAHE3/57T, SMBJ36CAHE3/52T trades surge capacity for smaller size, while SMCJ36CAHM3/57T offers identical protection with enhanced environmental compliance - neither is pin-compatible due to differing package outlines (SMB vs. SMC), requiring layout revision.
Availability
SMCJ36CAHE3/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial fieldbus nodes, and telecom line card designs requiring stable component supply, AEC-Q101 validation, and 1500 W transient immunity.
Supply support for SMCJ36CAHE3/57T 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMCJ series targets high-energy transient suppression in harsh environments, with design focus on automotive, industrial, and telecom infrastructure where robustness, AEC-Q101 compliance, and repeatable clamping behavior are critical.
FAQ
What is the clamping voltage of SMCJ36CAHE3/57T at its rated peak pulse current?
The SMCJ36CAHE3/57T has a maximum clamping voltage (VC) of 58.1 V at 25.8 A peak pulse current (IPPM), measured under standardized 10/1000 μs waveform conditions. This value defines the upper voltage limit imposed on protected circuitry during surge events and is confirmed in Vishay's datasheet Document Number 88394, page 2. The SMCJ36CAHE3/57T maintains this clamping performance across its full operating temperature range.
Is SMCJ36CAHE3/57T suitable for automotive applications?
Yes, SMCJ36CAHE3/57T is AEC-Q101 qualified and explicitly designated for automotive use with ordering code suffix "HE3". It undergoes stress testing for temperature cycling, high-temperature reverse bias, and accelerated life validation per AEC-Q101 Rev D. The SMCJ36CAHE3/57T is deployed in engine control modules, ADAS camera interfaces, and body electronics where transient immunity and long-term reliability are mandated.
How does the bidirectional configuration of SMCJ36CAHE3/57T affect its PCB layout?
The SMCJ36CAHE3/57T has no polarity marking and functions identically in either orientation, simplifying layout and eliminating risk of reverse installation. Unlike unidirectional TVS diodes, it requires no cathode band alignment - both terminals are electrically symmetric. The SMCJ36CAHE3/57T must be mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per datasheet recommendation to achieve rated 1500 W pulse power dissipation.
What is the standoff voltage rating of SMCJ36CAHE3/57T, and how does it relate to system operating voltage?
The SMCJ36CAHE3/57T has a standoff voltage (VWM) of 36 V, meaning it remains non-conductive below this DC or RMS voltage level. For reliable operation, system working voltage should be ≤80 % of VWM - i.e., ≤28.8 V - to ensure margin against tolerance drift and temperature effects. This makes the SMCJ36CAHE3/57T appropriate for 24 V automotive and industrial systems, where nominal 24 V rails may reach 28 V during load dump.
Does SMCJ36CAHE3/57T require derating at elevated ambient temperatures?
Yes, SMCJ36CAHE3/57T must be derated above TA = 25 °C per Figure 2 in Vishay's datasheet 88394. At 85 °C ambient, its peak pulse power drops to approximately 1050 W (70 % of 1500 W), and at 125 °C, it falls to ~600 W. Derating is linear based on junction-to-ambient thermal resistance (75 °C/W); proper copper pad sizing and airflow must be verified in final layout to maintain safe TJ ≤ 150 °C during surge events. The SMCJ36CAHE3/57T datasheet provides exact derating curves for design validation.
SMCJ36CAHE3/57T 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):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 58.1V
- Current - Peak Pulse (10/1000µs):
- 25.8A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ36CAHE3/57T FAQ
1.How can I place an order for SMCJ36CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ36CAHE3/57T 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 SMCJ36CAHE3/57T reliable?
The price and inventory of SMCJ36CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ36CAHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ36CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ36CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ36CAHE3/57T?
SMCJ36CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ36CAHE3/57T 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 SMCJ36CAHE3/57T?
For technical support, including SMCJ36CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ36CAHE3/57T requirements.
6.How does Aetrix verify that SMCJ36CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ36CAHE3/57T 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 SMCJ36CAHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ36CAHE3/57T?
All SMCJ36CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ36CAHE3/57T, 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 SMCJ36CAHE3/57T part is unused and in its original packaging.
Return procedure for SMCJ36CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ36CAHE3/57T Tags
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