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Vishay General Semiconductor - Diodes Division SMA5J36CAHE3_A/I
- Part No.:
- SMA5J36CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J36CAHE3_A/I.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,082
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Product details
Overview
SMA5J36CAHE3_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 signal and power lines. It features a 36 V standoff voltage (VWM), 40.0–44.2 V breakdown range (VBR), 58.1 V clamping voltage (VC) at 8.6 A peak pulse current, and 500 W peak pulse power rating - deployed in automotive sensor interfaces, industrial I/O modules, and telecom line protection.
For engineers reviewing the SMA5J36CAHE3_A/I datasheet, SMA5J36CAHE3_A/I pinout, SMA5J36CAHE3_A/I application, or SMA5J36CAHE3_A/I equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification status, 150 °C maximum junction temperature, low incremental surge resistance, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a voltage-clamped shunt protector, responding to transients within picoseconds via avalanche breakdown. Its bidirectional structure enables symmetrical clamping in both polarities without external polarity management, and its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and repeatable breakdown behavior across temperature.
The SMA5J36CAHE3_A/I is rated for 10/1000 μs waveform surges up to 500 W, with thermal resistance of 80 °C/W (junction-to-ambient) and 25 °C/W (junction-to-lead). It meets MSL Level 1 per J-STD-020 and is qualified to AEC-Q101 for automotive under-hood and chassis applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working margin for 33–36 V nominal bus systems. |
| VBR (min/max) | 40.0 V / 44.2 V - Measured at 1 mA test current; ensures predictable, tight breakdown threshold for reliable overvoltage triggering. |
| VC @ IPPM | 58.1 V at 8.6 A - Clamped voltage during 10/1000 μs surge; limits downstream IC stress to sub-60 V during 500 W transient events. |
| PPPM | 500 W - Peak pulse power handling capability; supports robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 3 surges. |
| IPPM | 8.6 A - Peak pulse current for 10/1000 μs waveform; directly correlates to surge energy absorption (W × s) under standardized test conditions. |
| TJ max. | 150 °C - Maximum junction temperature; enables operation in under-hood automotive environments and industrial enclosures without derating below full power. |
| AEC-Q101 | Qualified - Validated for automotive reliability including HTOL, TC, UHAST, and ESD; required for ECUs, ADAS sensors, and body control modules. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, bidirectional configuration with no polarity marking. Case meets UL 94 V-0; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional transient conduction path | No defined anode/cathode; terminals are interchangeable - enables single-component protection on AC-coupled or floating signal lines. |
| Case (cathode band absent) | Thermal and mechanical interface | Exposed metal slug provides primary heat dissipation path to PCB copper; requires minimum 5.0 mm × 5.0 mm pad per terminal per datasheet fig. 2. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage (<1.0 μA) across -55 °C to +150 °C, critical for long-term field reliability. |
| MSL Level 1 (260 °C peak) | Enables standard lead-free reflow without pre-baking; compatible with high-volume SMT assembly lines using JEDEC-compliant profiles. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD, relay bounce), improving clamping precision for sensitive 3.3 V/5 V logic. |
| AEC-Q101 qualification (HE3 suffix) | Confirms compliance with automotive stress tests including 1000-cycle temperature cycling and 1000-hr HTOL - required for Tier 1 supplier BOMs. |
| 500 W peak pulse power | Supports protection of CAN FD, LIN, RS-485, and 24 V power rails against coupled lightning surges per IEC 61000-4-5 (10/700 μs). |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine control units exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Shunt TVS element placed between signal line and ground, clamping transients before they reach ADC input or op-amp buffer. Use Value: Maintains signal integrity by limiting voltage excursions to ≤58.1 V during 500 W surges, preventing latch-up or parametric drift in 12-bit sensor front-ends. |
Use Scenario: Safeguarding 24 V digital input channels on PLC modules subjected to inductive kickback from solenoid drivers. IC Role / Device Role / Timing Role: Bidirectional clamp across input terminal and common rail, absorbing reverse EMF without polarity constraints. Use Value: Eliminates need for dual unidirectional devices; reduces BOM count while delivering symmetric 36 V standoff and 58.1 V clamping in both directions. |
| Telecom Line Interface | Consumer Power Adapter Output |
Use Scenario: Surge suppression on POTS or DSL line interface circuits where differential-mode transients exceed 1 kV. IC Role / Device Role / Timing Role: Primary protection stage before GDT or MOV secondary clamping, placed across tip/ring or data pair. Use Value: Fast response (<1 ns) and low capacitance (<100 pF at 0 V) preserve signal bandwidth up to 10 MHz without distortion or insertion loss. |
Use Scenario: Secondary-side overvoltage clamp on 5 V/9 V USB-C PD adapter outputs during hot-plug or short-circuit recovery. IC Role / Device Role / Timing Role: Standby-mode protector between VBUS and GND, activated only during fault conditions exceeding 36 V. Use Value: Prevents damage to connected devices during abnormal regulation events while drawing <1.0 μA standby current - no impact on no-load efficiency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J36CAHM3_A/I | Halogen-free, RoHS-compliant variant with identical electrical specs and AEC-Q101 qualification; same thermal and clamping performance. | Required when halogen-free material compliance is mandated by OEM environmental specifications (e.g., VW 80101). | Select SMA5J36CAHM3_A/I if halogen-free content is contractually required; otherwise SMA5J36CAHE3_A/I offers standard RoHS compliance at lower cost. |
| SMA6J36CAHE3_A/I | 600 W peak pulse power rating (vs. 500 W), higher IPPM (10.3 A), same VWM/VC, identical package and AEC-Q101 qualification. | Preferred for systems requiring higher surge margin (e.g., commercial vehicle 24 V battery systems with extended load dump profiles). | Choose SMA6J36CAHE3_A/I when design margin demands >500 W surge handling; SMA5J36CAHE3_A/I remains optimal for cost-sensitive automotive body electronics. |
Compared with SMA5J36CAHM3_A/I, the SMA5J36CAHE3_A/I offers identical protection performance with standard RoHS compliance; versus SMA6J36CAHE3_A/I, it trades 100 W surge headroom for lower unit cost and footprint compatibility in space-constrained modules.
Availability
SMA5J36CAHE3_A/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC inputs, and telecom line protection requiring stable component supply, AEC-Q101 traceability, and long-term production continuity.
Supply support for SMA5J36CAHE3_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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with global manufacturing and testing facilities focused on high-reliability passive protection components.
The SMA5J series was developed specifically for high-power-density, AEC-Q101-compliant transient suppression in automotive and industrial environments where compact size, thermal robustness, and repeatable clamping are mandatory.
FAQ
What is the clamping voltage of the SMA5J36CAHE3_A/I and how is it measured?
The SMA5J36CAHE3_A/I has a maximum clamping voltage (VC) of 58.1 V, measured at 8.6 A peak pulse current using a 10/1000 μs waveform per IEC 61000-4-5. This value reflects the actual voltage seen by protected circuitry during standardized surge events and is guaranteed across the full operating temperature range of -55 °C to +150 °C. The SMA5J36CAHE3_A/I achieves this with low incremental surge resistance and a tightly controlled breakdown distribution.
Is the SMA5J36CAHE3_A/I suitable for automotive applications?
Yes, the SMA5J36CAHE3_A/I is AEC-Q101 qualified and explicitly intended for automotive use, including engine control units, ADAS camera modules, and body electronics. Its qualification covers HTOL, temperature cycling, and ESD testing per automotive stress requirements. The HE3 suffix denotes RoHS-compliant, AEC-Q101-qualified construction, and the device is rated for continuous operation up to 150 °C junction temperature - meeting under-hood thermal demands.
Does the SMA5J36CAHE3_A/I have polarity markings, and how is it mounted?
No, the SMA5J36CAHE3_A/I is a bidirectional TVS diode and carries no cathode band or polarity marking - both terminals are functionally identical. It is mounted in the SMA (DO-214AC) package using standard SMT reflow, with recommended 5.0 mm × 5.0 mm copper pads per terminal for optimal thermal dissipation. The device meets MSL Level 1 and requires no pre-bake prior to assembly.
How does the SMA5J36CAHE3_A/I compare to unidirectional variants like SMA5J36AHE3_A/I?
The SMA5J36CAHE3_A/I differs from unidirectional SMA5J36AHE3_A/I solely in polarity configuration: it provides symmetrical clamping in both directions, whereas the unidirectional version clamps only in reverse bias and conducts forward current up to 40 A IFSM. The bidirectional SMA5J36CAHE3_A/I eliminates polarity concerns on AC or floating lines but lacks forward surge capability. Both share identical VWM, VBR, VC, and PPPM ratings.
What is the leakage current specification for the SMA5J36CAHE3_A/I at its standoff voltage?
The SMA5J36CAHE3_A/I exhibits a maximum reverse leakage current (ID) of 1.0 μA at its 36 V standoff voltage (VWM) and 25 °C ambient temperature. This low leakage ensures minimal power loss in always-on circuits and prevents false triggering in high-impedance sensor interfaces. Leakage remains below 5.0 μA across the full -55 °C to +125 °C operating range, as verified in Vishay's AEC-Q101 qualification testing.
SMA5J36CAHE3_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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J36CAHE3_A/I FAQ
1.How can I place an order for SMA5J36CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J36CAHE3_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 SMA5J36CAHE3_A/I reliable?
The price and inventory of SMA5J36CAHE3_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 SMA5J36CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMA5J36CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J36CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J36CAHE3_A/I?
SMA5J36CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J36CAHE3_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 SMA5J36CAHE3_A/I?
For technical support, including SMA5J36CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J36CAHE3_A/I requirements.
6.How does Aetrix verify that SMA5J36CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMA5J36CAHE3_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 SMA5J36CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMA5J36CAHE3_A/I?
All SMA5J36CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J36CAHE3_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 SMA5J36CAHE3_A/I part is unused and in its original packaging.
Return procedure for SMA5J36CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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