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Vishay General Semiconductor - Diodes Division SMA5J36CAHM3_A/I
- Part No.:
- SMA5J36CAHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J36CAHM3_A/I.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,357
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Product details
Overview
SMA5J36CAHM3_A/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 power and signal 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 IPPM, and operates from –55 °C to +150 °C - used in automotive sensor interfaces and industrial power supply input stages.
For engineers reviewing the SMA5J36CAHM3_A/I datasheet, SMA5J36CAHM3_A/I pinout, SMA5J36CAHM3_A/I application, or SMA5J36CAHM3_A/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 device is a silicon avalanche diode engineered for unidirectional or bidirectional transient suppression using a glass-passivated junction. Its low incremental surge resistance and fast response time (<1 ns) enable effective clamping of ESD, lightning-induced surges, and inductive switching transients without degradation under repetitive stress.
The SMA5J36CAHM3_A/I is rated for 500 W peak pulse power (10/1000 μs waveform), with thermal resistance RθJA = 80 °C/W and RθJL = 25 °C/W. It meets MSL Level 1 per J-STD-020 (260 °C peak reflow), and its HM3 suffix confirms halogen-free, RoHS-compliant, AEC-Q101 qualified construction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 40.0 V / 44.2 V at 1 mA - guaranteed avalanche onset range for reliable turn-on threshold |
| VC @ IPPM | 58.1 V at 8.6 A - clamped voltage during 500 W transient, defining protected circuit's max overvoltage |
| PPPM | 500 W (10/1000 μs) - surge energy handling capacity for automotive load-dump and ISO 7637-2 compliance |
| TJ max | +150 °C - enables operation in under-hood automotive environments and industrial enclosures |
| Package | SMA (DO-214AC) - surface-mount footprint compatible with standard 0.2" × 0.2" pad layout and pick-and-place equipment |
| Qualification | AEC-Q101 qualified (HM3 suffix) - validated for automotive electronics reliability per stress test requirements |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads; polarity unmarked for bidirectional configuration (SMA5J36CAHM3_A/I has no cathode band).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional avalanche junction | Terminals interchangeable; conducts equally in both directions above VBR |
| Case / Body | Non-electrical mechanical interface | No internal connection; serves as thermal path and mounting surface |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC lines, differential buses, or floating references without polarity concerns |
| 500 W peak pulse rating | Withstands ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 Combination Wave (10/1000 μs) surges |
| AEC-Q101 qualification (HM3) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| Halogen-free & RoHS-compliant | Meets automotive OEM material restrictions and environmental compliance mandates (e.g., ELV, REACH) |
| MSL Level 1 (260 °C) | Supports lead-free reflow soldering without pre-baking or moisture sensitivity handling |
Applications
| Automotive Sensor Protection | Industrial Power Input Stage |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from battery line transients and ESD. IC Role / Device Role / Timing Role: Bidirectional TVS placed across VCC-GND or signal pair to clamp surges before they reach sensitive IC inputs. Use Value: Prevents latch-up or permanent damage in AEC-Q100 qualified microcontrollers and signal conditioners during cold-crank or load-dump events. |
Use Scenario: Safeguarding 24 V DC power rails in PLC I/O modules and motor drive control boards against inductive kickback and lightning-induced surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp at bulk input stage, upstream of DC-DC converters and LDOs. Use Value: Maintains system uptime by absorbing up to 500 W transients without failure, reducing need for redundant protection schemes. |
| Telecom Line Interface | Consumer Appliance Control Board |
Use Scenario: Shielding RS-485/RS-232 data lines in base stations and network edge devices from induced surges on long cable runs. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF at VWM) bidirectional clamp placed differential-to-ground on twisted-pair lines. Use Value: Preserves signal integrity at multi-Mbps rates while meeting IEC 61000-4-5 Level 4 immunity requirements. |
Use Scenario: Securing microcontroller GPIOs and relay driver circuits in washing machines, HVAC controllers, and smart home hubs. IC Role / Device Role / Timing Role: Secondary-level protection on 12/24 V auxiliary rails and button/switch debounce inputs subject to user ESD. Use Value: Eliminates field returns due to human-body-model (HBM) ESD events (>15 kV air discharge) without adding board area or cost. |
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_A/I | Same electrical specs, but RoHS-compliant commercial grade (E3); not AEC-Q101 qualified; non-halogen-free | Suitable for industrial/commercial designs where automotive qualification is unnecessary | Select when AEC-Q101 is not required and halogen content is unrestricted |
| SMA6J36CAHM3_A/I | 600 W PPPM rating (vs. 500 W), same VWM/VBR/VC, identical package and qualification | Higher surge margin for systems exposed to repeated or severe transients (e.g., heavy-duty vehicle alternators) | Choose for enhanced robustness where space allows same footprint and higher power rating is needed |
Compared with SMA5J36CAHE3_A/I, the SMA5J36CAHM3_A/I adds AEC-Q101 qualification and halogen-free compliance; compared with SMA6J36CAHM3_A/I, it trades 100 W lower peak power for tighter cost and thermal footprint in less demanding automotive subsystems.
Availability
SMA5J36CAHM3_A/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial power input stages, telecom line protection, and consumer appliance control boards requiring stable component supply with full traceability and lifecycle management.
Supply support for SMA5J36CAHM3_A/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 and application-specific performance.
The SMA5J series is part of Vishay's TRANSZORB® TVS portfolio, engineered specifically for high-power-density, surface-mount surge protection in automotive, industrial, and communications infrastructure applications.
FAQ
What is the clamping voltage of the SMA5J36CAHM3_A/I at its rated peak pulse current?
The SMA5J36CAHM3_A/I clamps to a maximum of 58.1 V at its specified peak pulse current (IPPM) of 8.6 A under a 10/1000 μs waveform. This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during a 500 W transient event. The SMA5J36CAHM3_A/I maintains this clamping performance across its qualified temperature range (–55 °C to +150 °C), ensuring consistent protection in harsh environments.
Is the SMA5J36CAHM3_A/I suitable for automotive applications?
Yes, the SMA5J36CAHM3_A/I is AEC-Q101 qualified and carries the HM3 suffix, indicating halogen-free, RoHS-compliant construction validated for automotive use. It meets stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD robustness per AEC-Q101 Rev D. The SMA5J36CAHM3_A/I is commonly deployed in body control modules, ADAS sensor interfaces, and infotainment power supplies where load-dump and jump-start immunity are critical.
How does the bidirectional configuration of SMA5J36CAHM3_A/I affect its PCB layout?
The SMA5J36CAHM3_A/I has no polarity marking (no cathode band), so either terminal may connect to either side of a differential line or across a floating rail. This eliminates orientation constraints during automated placement and simplifies layout for AC-coupled or symmetric signal paths. Unlike unidirectional TVS diodes, the SMA5J36CAHM3_A/I requires no attention to anode/cathode alignment - reducing assembly errors and enabling reuse across multiple board revisions with differing grounding schemes.
What is the thermal resistance of the SMA5J36CAHM3_A/I, and how does it impact derating?
The SMA5J36CAHM3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. At ambient temperatures above 25 °C, its peak pulse power must be linearly derated - e.g., at 85 °C TA, usable PPPM drops to ~350 W. This derating curve is defined in Figure 2 of the Vishay datasheet 88875, and proper pad design is essential to maintain the SMA5J36CAHM3_A/I within safe operating limits during repeated surge events.
Does the SMA5J36CAHM3_A/I meet moisture sensitivity level (MSL) requirements for lead-free reflow?
Yes, the SMA5J36CAHM3_A/I is rated MSL Level 1 per J-STD-020, with a maximum peak reflow temperature of 260 °C. This means it can be placed directly into lead-free reflow ovens without baking or dry-pack handling, supporting high-throughput SMT manufacturing. The device's molding compound meets UL 94 V-0 flammability rating, and its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards - all confirmed for the HM3 variant of the SMA5J36CAHM3_A/I.
SMA5J36CAHM3_A/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:
- Active
- 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_A/I FAQ
1.How can I place an order for SMA5J36CAHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J36CAHM3_A/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_A/I reliable?
The price and inventory of SMA5J36CAHM3_A/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_A/I is usually 5 days.
3.What payment methods are accepted for SMA5J36CAHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J36CAHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J36CAHM3_A/I?
SMA5J36CAHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J36CAHM3_A/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_A/I?
For technical support, including SMA5J36CAHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J36CAHM3_A/I requirements.
6.How does Aetrix verify that SMA5J36CAHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMA5J36CAHM3_A/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_A/I meets industry standards.
7.What is the process for return or replacement of SMA5J36CAHM3_A/I?
All SMA5J36CAHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J36CAHM3_A/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_A/I part is unused and in its original packaging.
Return procedure for SMA5J36CAHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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