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Vishay General Semiconductor - Diodes Division SMA5J36AHM3/H
- Part No.:
- SMA5J36AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J36AHM3/H.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,816
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Product details
Overview
SMA5J36AHM3/H from Vishay General Semiconductor is a unidirectional 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 at 1 mA), 500 W peak pulse power (10/1000 µs), 8.6 A peak pulse current (IPPM), and clamps to ≤58.1 V at rated surge. It is used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the SMA5J36AHM3/H datasheet, SMA5J36AHM3/H pinout, SMA5J36AHM3/H application, or SMA5J36AHM3/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification (HM3 suffix), halogen-free RoHS compliance, 150 °C max junction temperature, and compatibility with automated SMT placement on standard 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a voltage-clamping device triggered by transient overvoltage events exceeding its reverse stand-off voltage of 36 V. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 µA at VWM), while its low incremental surge resistance enables effective energy diversion during 10/1000 µs surges up to 500 W.
The SMA5J36AHM3/H is rated for operation from –55 °C to +150 °C, with thermal resistance of 80 °C/W (junction-to-ambient) and 25 °C/W (junction-to-lead). Its AEC-Q101 qualification confirms suitability for automotive under-hood and powertrain applications where reliability under thermal cycling and mechanical stress is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 36 V nominal systems. |
| VBR (min/max) | 40.0 V / 44.2 V at 1 mA - Confirmed breakdown range ensures predictable turn-on across production lots and temperature. |
| VC @ IPPM | ≤58.1 V - Clamping voltage at 8.6 A surge current; determines maximum stress imposed on protected downstream circuitry. |
| PPPM | 500 W - Peak pulse power handling per 10/1000 µs waveform; supports IEC 61000-4-5 Level 4 surge immunity requirements. |
| IFSM | 40 A - Non-repetitive forward surge rating (8.3 ms half-sine); validates robustness against inrush or load-dump transients. |
| TJ max | +150 °C - Maximum junction temperature; enables use in high-ambient environments such as engine control units. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by band marking; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or lower-potential rail; completes clamping path during positive transients on cathode side. |
| Cathode | Reverse-biased input terminal | Connected to protected line (e.g., 36 V supply rail); conducts only when voltage exceeds VWM, diverting surge to ground. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing. |
| Halogen-free & RoHS-compliant | Meets automotive and industrial environmental compliance mandates without compromising thermal or electrical performance. |
| Glass passivated junction | Ensures stable VBR tolerance, low leakage (<1 µA), and long-term parameter stability under thermal stress. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without preconditioning; eliminates moisture-related popcorning risk. |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 36 V battery-fed ECUs from load dump and alternator transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between 36 V rail and chassis ground to limit voltage excursion during 120 V/100 ms surges. Use Value: Clamps to ≤58.1 V within nanoseconds, preventing damage to 40 V-rated DC-DC controllers and CAN transceivers. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in factory automation PLC modules from ESD and inductive switching noise. IC Role / Device Role / Timing Role: Low-capacitance TVS on 3.3 V or 5 V signal lines, positioned adjacent to connector entry points. Use Value: Sub-1 ns response time and <1 µA leakage preserve signal integrity while absorbing ±15 kV HBM ESD events. |
| Telecom DC Power Feeds | Consumer Power Adapter Outputs |
Use Scenario: Safeguarding PoE-powered equipment (e.g., IP cameras) fed via 48 V DC from induced lightning surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary-level TVS on input stage of DC-DC converter, upstream of filtering and regulation. Use Value: 500 W surge rating handles 10/1000 µs surges up to 1 kV, meeting IEC 61000-4-5 Level 3 requirements. |
Use Scenario: Secondary-side overvoltage suppression on 36 V output rails of laptop adapters exposed to AC line transients. IC Role / Device Role / Timing Role: Final-stage protection device placed immediately after secondary rectifier and bulk capacitor. Use Value: Tight VBR tolerance (±5.5%) and low clamping ratio (VC/VBR ≈ 1.45) minimize overshoot into connected devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J36AHE3/H | Same electrical specs, but RoHS-compliant commercial grade (not AEC-Q101 qualified); uses E3 suffix instead of HM3. | Lacks automotive qualification; suitable for industrial/commercial designs where AEC-Q101 is not mandated. | Select SMA5J36AHE3/H for cost-sensitive non-automotive applications requiring identical clamping performance. |
| SMCJ36A-H | Higher power rating (1500 W), larger SMC (DO-214AB) package, same VWM/VBR range; 12.5 A IPPM. | Used where higher surge energy absorption is required, e.g., main board-level protection vs. point-of-load. | Choose SMCJ36A-H when system-level surge tests exceed 500 W or PCB layout allows larger footprint. |
Compared with SMA5J36AHM3/H, SMA5J36AHE3/H offers identical clamping but no automotive qualification, while SMCJ36A-H provides triple the surge power in a larger package-enabling trade-offs between board space, qualification, and energy handling.
Availability
SMA5J36AHM3/H is available at Aetrix Electronics and suitable for automotive power modules, industrial sensor nodes, and telecom DC feeds requiring stable component supply with guaranteed AEC-Q101 compliance and halogen-free material content.
Supply support for SMA5J36AHM3/H 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 SMA5J series is part of Vishay's TRANSZORB® TVS platform, engineered for high-power-density transient suppression in space-constrained automotive and industrial systems where fast response and repeatable clamping are essential.
FAQ
What is the polarity configuration of SMA5J36AHM3/H?
The SMA5J36AHM3/H is a unidirectional TVS diode, meaning it conducts only in reverse bias above its breakdown voltage. The cathode is marked by a band on the SMA package body, and the anode connects to ground. This configuration protects positive-going transients on the cathode-connected line while blocking normal forward operation.
Does SMA5J36AHM3/H meet automotive qualification standards?
Yes, SMA5J36AHM3/H is AEC-Q101 qualified, as confirmed by the "HM3" suffix and Vishay documentation. This qualification covers stress tests including temperature cycling, high-temperature operating life, and mechanical shock-validating its use in automotive powertrain and body electronics where reliability under harsh conditions is mandatory.
What is the maximum clamping voltage for SMA5J36AHM3/H at rated surge current?
The maximum clamping voltage (VC) for SMA5J36AHM3/H is 58.1 V at its rated peak pulse current (IPPM) of 8.6 A, measured under the standardized 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
Can SMA5J36AHM3/H be used in bidirectional applications?
No, SMA5J36AHM3/H is strictly unidirectional. For bidirectional protection, Vishay specifies the CA-suffixed variant (e.g., SMA5J36CA). Using SMA5J36AHM3/H in bidirectional configurations would result in unintended forward conduction during negative transients, potentially damaging the device or failing to protect the circuit.
What is the thermal resistance specification for SMA5J36AHM3/H?
SMA5J36AHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W and junction-to-lead resistance (RθJL) of 25 °C/W, measured on the recommended 0.2" × 0.2" copper pad layout. These values inform thermal design margins when operating near its 150 °C maximum junction temperature.
SMA5J36AHM3/H 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:
- 1
- Bidirectional Channels:
- -
- 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)
SMA5J36AHM3/H FAQ
1.How can I place an order for SMA5J36AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J36AHM3/H 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 SMA5J36AHM3/H reliable?
The price and inventory of SMA5J36AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J36AHM3/H is usually 5 days.
3.What payment methods are accepted for SMA5J36AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J36AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J36AHM3/H?
SMA5J36AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J36AHM3/H 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 SMA5J36AHM3/H?
For technical support, including SMA5J36AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J36AHM3/H requirements.
6.How does Aetrix verify that SMA5J36AHM3/H is sourced from the original manufacturer or authorized distributors?
All SMA5J36AHM3/H 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 SMA5J36AHM3/H meets industry standards.
7.What is the process for return or replacement of SMA5J36AHM3/H?
All SMA5J36AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J36AHM3/H, 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 SMA5J36AHM3/H part is unused and in its original packaging.
Return procedure for SMA5J36AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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