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Vishay General Semiconductor - Diodes Division SMA5J36CAHM3/I
- Part No.:
- SMA5J36CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J36CAHM3/I.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,172
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Product details
Overview
SMA5J36CAHM3/I from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection on signal and power lines. It features a 36 V stand-off voltage (VWM), 40.0–44.2 V breakdown voltage (VBR), 500 W peak pulse power (10/1000 µs), clamping voltage of 58.1 V at 8.6 A, and operates from −55 °C to +150 °C - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMA5J36CAHM3/I datasheet, SMA5J36CAHM3/I pinout, SMA5J36CAHM3/I application, or SMA5J36CAHM3/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification (HM3 suffix), halogen-free RoHS compliance, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode uses a glass-passivated silicon junction to achieve sub-nanosecond response time and low incremental surge resistance, enabling effective suppression of ESD, lightning-induced transients, and inductive switching spikes. Its bidirectional architecture ensures symmetrical clamping in both polarities without polarity marking.
The device is rated for 500 W peak pulse power under standardized 10/1000 µs waveform conditions, with thermal resistance of 80 °C/W (junction-to-ambient) and 25 °C/W (junction-to-lead), supporting reliable operation in compact PCB layouts with minimal copper area.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - maximum continuous reverse operating voltage before clamping begins; defines safe working range for protected line. |
| VBR min/max | 40.0 V / 44.2 V at 1 mA - verified breakdown threshold ensuring predictable turn-on during overvoltage events. |
| VC @ IPPM | 58.1 V at 8.6 A - clamping voltage under full-rated 500 W surge; determines maximum stress on downstream ICs. |
| PPPM | 500 W - peak pulse power handling per 10/1000 µs waveform; enables robust protection against IEC 61000-4-5 Level 4 surges. |
| TJ range | −55 °C to +150 °C - extended junction temperature rating supports under-hood automotive and industrial environments. |
| Package | SMA (DO-214AC) - surface-mount package with 5.28 mm × 4.50 mm footprint, compatible with standard reflow profiles (MSL level 1, 260 °C peak). |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Two-terminal bidirectional device in SMA (DO-214AC) package; no polarity marking. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102, with MSL level 1 moisture sensitivity rating (peak reflow 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked) | Bidirectional terminal pair | Identical electrical behavior in both directions; connects across protected line and ground (or between differential lines). |
| Case (body) | Non-electrical mechanical interface | Plastic-molded DO-214AC body provides UL 94 V-0 flammability rating and mechanical strain relief for lead termination. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance and long-term reliability under repeated surge stress without parameter drift. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns response), improving clamping precision for sensitive ICs. |
| Halogen-free & RoHS-compliant (HM3) | Fulfills automotive and industrial environmental compliance requirements without compromising surge performance or thermal stability. |
| Automated placement optimized | Standardized SMA outline and lead geometry ensure high-yield pick-and-place accuracy and consistent solder joint formation. |
| 5.0 mm × 5.0 mm copper pad layout | Validated thermal path for 500 W dissipation; enables use in space-constrained designs without external heatsinking. |
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 in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional shunt clamp placed between signal line and chassis ground to divert surge current away from front-end amplifiers and ADCs. Use Value: Maintains signal integrity during 500 W transients while meeting AEC-Q101 qualification for 15-year automotive service life. |
Use Scenario: Safeguarding 24 V digital input modules in programmable logic controllers against field-wiring induced surges and relay contact bounce. IC Role / Device Role / Timing Role: Standoff-clamp TVS connected across input terminals to limit voltage to ≤58.1 V during 10/1000 µs surges up to 8.6 A. Use Value: Prevents false triggering and latch-up in optocoupler input stages while supporting >100,000 surge cycles per IEC 61000-4-5. |
| Telecom Line Interface | Consumer Power Adapter ESD Protection |
|
Use Scenario: Shielding Ethernet PHY magnetics and PoE detection circuitry from lightning-induced common-mode surges on outdoor cabling. IC Role / Device Role / Timing Role: Bidirectional TVS installed on secondary-side DC lines to clamp differential and common-mode transients simultaneously. Use Value: Achieves <1 ns response with 58.1 V clamping, preserving Ethernet signal rise time and jitter budget under 1 kV/μs threats. |
Use Scenario: Adding secondary-side surge immunity to USB-C PD adapters and AC/DC wall adapters exposed to user-handling ESD. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF) bidirectional clamp on 5–20 V output rails to suppress ±8 kV contact ESD per IEC 61000-4-2. Use Value: Eliminates need for additional RC filtering while maintaining tight output regulation and meeting UL/EN 62368-1 safety margins. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J36CAHE3/I | Same electrical specs and package; RoHS-compliant but not halogen-free; lacks AEC-Q101 qualification. | Suitable for commercial/industrial use where automotive qualification is not required. | Select when cost sensitivity outweighs halogen-free or automotive reliability requirements. |
| SMA6J36CAHM3/I | 600 W peak pulse power (vs. 500 W); identical VWM, VBR, and package; higher IPPM (9.7 A) and VC (64.5 V). | Better suited for systems requiring higher surge margin (e.g., outdoor telecom, heavy industrial). | Choose when design must withstand >500 W transients without derating; verify downstream IC tolerance to 64.5 V clamping. |
Compared with SMA5J36CAHM3/I, SMA5J36CAHE3/I offers lower cost but no halogen-free or automotive qualification, while SMA6J36CAHM3/I delivers 20 % higher surge capacity at the expense of 11 % higher clamping voltage - critical for protecting 3.3 V or 5 V logic interfaces.
Availability
SMA5J36CAHM3/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply, halogen-free compliance, and AEC-Q101 validation.
Supply support for SMA5J36CAHM3/I 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, power density, and application-specific qualification.
The SMA5J series is engineered for high-power-density transient suppression in automotive, industrial, and telecom systems - delivering AEC-Q101 qualified, halogen-free TVS solutions in compact surface-mount packages.
FAQ
What does the "HM3" suffix mean in SMA5J36CAHM3/I?
The HM3 suffix in SMA5J36CAHM3/I indicates halogen-free, RoHS-compliant construction and AEC-Q101 qualification. It confirms compliance with automotive reliability standards and environmental regulations, distinguishing it from commercial-grade variants like E3 or HE3. SMA5J36CAHM3/I is specifically intended for automotive and high-reliability industrial applications where both material content and lifetime performance are strictly controlled.
Is SMA5J36CAHM3/I unidirectional or bidirectional?
SMA5J36CAHM3/I is a bidirectional transient voltage suppressor, as confirmed by the "CA" suffix in its part number. It provides symmetrical clamping in both polarities with no cathode marking on the SMA package body. This makes SMA5J36CAHM3/I suitable for protecting AC-coupled lines, differential buses (e.g., CAN, RS-485), and any application where voltage transients may occur with either polarity relative to ground.
What is the clamping voltage of SMA5J36CAHM3/I and how is it measured?
The clamping voltage of SMA5J36CAHM3/I is 58.1 V, measured at a peak pulse current (IPPM) of 8.6 A under standardized 10/1000 µs waveform conditions. This value represents the maximum voltage that appears across SMA5J36CAHM3/I during a full-rated 500 W surge event and directly determines the stress imposed on downstream components - a critical parameter for ensuring system-level overvoltage immunity.
Can SMA5J36CAHM3/I be used in place of SMA5J36A (unidirectional)?
No - SMA5J36CAHM3/I is bidirectional and cannot functionally replace the unidirectional SMA5J36A. While both share the same VWM (36 V) and package, SMA5J36A has a defined cathode band and conducts forward current, whereas SMA5J36CAHM3/I blocks in both directions until breakdown. Substituting SMA5J36CAHM3/I for SMA5J36A would eliminate intended DC bias paths and compromise circuit functionality in unidirectional applications.
What PCB layout guidance applies to SMA5J36CAHM3/I for optimal thermal performance?
For optimal thermal performance, SMA5J36CAHM3/I must be mounted on minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the Vishay datasheet. This layout ensures the device achieves its rated 500 W peak pulse power and maintains junction temperature within −55 °C to +150 °C limits. Reducing pad size or using narrow traces will increase thermal resistance and cause premature failure under surge conditions.
SMA5J36CAHM3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- 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):
- 8.6A
- Power - Peak Pulse:
- 500W
- 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-214AC (SMA)
SMA5J36CAHM3/I FAQ
1.How can I place an order for SMA5J36CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J36CAHM3/I 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 SMA5J36CAHM3/I reliable?
The price and inventory of SMA5J36CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J36CAHM3/I is usually 5 days.
3.What payment methods are accepted for SMA5J36CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J36CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J36CAHM3/I?
SMA5J36CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J36CAHM3/I 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 SMA5J36CAHM3/I?
For technical support, including SMA5J36CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J36CAHM3/I requirements.
6.How does Aetrix verify that SMA5J36CAHM3/I is sourced from the original manufacturer or authorized distributors?
All SMA5J36CAHM3/I 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 SMA5J36CAHM3/I meets industry standards.
7.What is the process for return or replacement of SMA5J36CAHM3/I?
All SMA5J36CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J36CAHM3/I, 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 SMA5J36CAHM3/I part is unused and in its original packaging.
Return procedure for SMA5J36CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J36CAHM3/I Tags
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