My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMAJ36AHM3_A/H
- Part No.:
- SMAJ36AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ36AHM3_A/H.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,291
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMAJ36AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power and signal lines. It features 36 V stand-off voltage (VWM), 40.0–44.2 V breakdown voltage (VBR) at 1 mA, 58.1 V maximum clamping voltage (VC) at 6.9 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power rails.
For engineers reviewing the SMAJ36AHM3_A/H datasheet, SMAJ36AHM3_A/H pinout, SMAJ36AHM3_A/H application, or SMAJ36AHM3_A/H equivalent, key selection criteria include its AEC-Q101 qualification, halogen-free RoHS-compliant construction (HM3 suffix), low incremental surge resistance, and verified clamping performance under repetitive 0.01% duty cycle surges.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, activated when reverse voltage exceeds VWM = 36 V and fully conducting above VBR = 40.0–44.2 V. Its junction temperature range spans −55 °C to +150 °C, with thermal resistance RθJA = 120 °C/W and RθJL = 30 °C/W, enabling reliable operation on standard 0.2" × 0.2" copper pads.
It delivers 400 W peak pulse power (derated to 300 W above 78 V), supports 40 A non-repetitive forward surge current (8.3 ms half-sine), and exhibits ≤1.0 μA reverse leakage at VWM, meeting UL 497B recognition and J-STD-020 MSL Level 1 reflow compatibility.
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 - Confirmed breakdown threshold defining turn-on consistency |
| VC @ IPPM | 58.1 V at 6.9 A - Clamped voltage during 10/1000 μs surge, limiting stress on downstream ICs |
| PPPM | 400 W - Peak pulse power handling with 10/1000 μs waveform, critical for lightning/inductive spike immunity |
| IFSM | 40 A - Single half-sine surge current rating (8.3 ms), supporting high-energy load-switching events |
| TJ max. | +150 °C - Maximum junction temperature enabling use in under-hood automotive environments |
| Package | SMA (DO-214AC) - Standardized surface-mount outline with cathode band marking and 0.064 g unit weight |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL Level 1 compliant (peak reflow 260 °C). Polarity indicated by cathode band on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during forward surge events |
| Cathode | Reverse-biased clamping terminal | Connected to higher-potential side; avalanches to clamp transients when VREV > VWM |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics |
| Halogen-free & RoHS-compliant (HM3) | Meets environmental compliance requirements for modern automotive and industrial production |
| 400 W peak pulse power (10/1000 μs) | Robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surge events |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage stress on protected ICs compared to higher-ratio suppressors |
| Fast response time < 1 ps | Clamps transients before sensitive logic or analog circuitry sustains damage |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontrollers and CAN transceivers from load-dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and GND to clamp positive-going transients only. Use Value: Limits voltage to ≤58.1 V during 400 W surges, preventing latch-up or gate oxide damage in downstream ICs. | Use Scenario: Shielding analog front-end inputs of pressure/temperature sensors from ESD and switching noise in factory automation PLCs. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to shunt fast transients before reaching precision ADC inputs. Use Value: Sub-1 μA leakage at 36 V ensures no DC error injection into high-impedance sensor paths. |
| Consumer Power Adapter Input Stage | MOSFET Gate Driver Protection |
Use Scenario: Safeguarding AC-DC adapter primary-side controllers from line surges and cross-talk from nearby relays. IC Role / Device Role / Timing Role: Unidirectional clamp across bulk capacitor input to absorb differential-mode spikes. Use Value: 40 A IFSM rating handles repeated inrush and switching surges without degradation. | Use Scenario: Preventing gate oxide failure in high-side N-channel MOSFET drivers subjected to shoot-through-induced voltage spikes. IC Role / Device Role / Timing Role: TVS placed between gate and source to clamp negative-going transients during fast switching transitions. Use Value: Low VC/VBR ratio ensures gate voltage stays within safe ±20 V window even under 6.9 A surge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36AHE3_A/H | Same electrical specs; RoHS-compliant but not halogen-free (E3 vs HM3) | Lacks halogen-free certification; acceptable for commercial but not automotive Tier-1 supply chains | Select if halogen-free requirement is waived and cost sensitivity outweighs material compliance |
| SMAJ36A-M3/61 | Identical VWM, VBR, VC; same halogen-free HM3 chemistry but different packaging code (/61 reel) | Same functional performance; differs only in tape-and-reel configuration (1800 pcs vs 7500 pcs per reel) | Choose based on production volume and SMT line feeder compatibility |
Compared with SMAJ36AHE3_A/H, the SMAJ36AHM3_A/H provides mandatory halogen-free compliance for automotive OEMs; versus SMAJ36A-M3/61, it shares identical suppression performance but uses /A/H reel coding aligned with Vishay's AEC-Q101 traceability protocol.
Availability
SMAJ36AHM3_A/H is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and consumer power adapter surge immunity requiring stable component supply and full AEC-Q101 traceability.
Supply support for SMAJ36AHM3_A/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, TVS, MOSFETs, and optoelectronics with emphasis on reliability and automotive-grade validation.
The SMAJ series is engineered for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where repeatable clamping, low leakage, and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of the SMAJ36AHM3_A/H under a 10/1000 μs surge?
The SMAJ36AHM3_A/H has a maximum clamping voltage (VC) of 58.1 V at 6.9 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured per Fig. 1 in Vishay Document 88390 and defines the upper voltage limit imposed on protected circuits during standardized surge events. The SMAJ36AHM3_A/H maintains this clamping performance across its qualified temperature range.
Is the SMAJ36AHM3_A/H suitable for automotive applications?
Yes, the SMAJ36AHM3_A/H is AEC-Q101 qualified (as indicated by the HM3 suffix and documentation in Vishay's 88390 datasheet), making it suitable for automotive applications including engine control modules, body electronics, and infotainment power supplies. Its construction meets halogen-free and RoHS requirements, and it is rated for operation from −55 °C to +150 °C - fulfilling under-hood thermal demands.
What does the "HM3" suffix mean in SMAJ36AHM3_A/H?
The "HM3" suffix in SMAJ36AHM3_A/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. Per Vishay's ordering information (Document 88390, page 3), HM3 parts meet JESD201 Class 2 whisker resistance and are intended for automotive and high-reliability industrial use. This distinguishes it from E3 (RoHS only) and HE3 (AEC-Q101 + RoHS, but not halogen-free) variants.
How does the SMAJ36AHM3_A/H differ from the SMAJ36A-M3/61?
The SMAJ36AHM3_A/H and SMAJ36A-M3/61 share identical electrical specifications, halogen-free chemistry, and AEC-Q101 qualification. Their difference lies solely in packaging: SMAJ36AHM3_A/H uses /A/H reel coding (1800 pcs, 7" reel), while SMAJ36A-M3/61 uses /61 coding (also 1800 pcs, 7" reel) - both are functionally interchangeable. The /A/H variant aligns with Vishay's traceability protocol for automotive customers.
What is the maximum reverse leakage current of the SMAJ36AHM3_A/H at its stand-off voltage?
The SMAJ36AHM3_A/H exhibits a maximum reverse leakage current (ID) of 1.0 μA at its stand-off voltage (VWM) of 36 V, measured at TA = 25 °C. This low leakage ensures minimal power loss and avoids interference with high-impedance sensing circuits - a critical parameter confirmed in the Electrical Characteristics table (page 2) of Vishay Document 88390.
SMAJ36AHM3_A/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:
- Active
- 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):
- 6.9A
- Power - Peak Pulse:
- 400W
- 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)
SMAJ36AHM3_A/H FAQ
1.How can I place an order for SMAJ36AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ36AHM3_A/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 SMAJ36AHM3_A/H reliable?
The price and inventory of SMAJ36AHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ36AHM3_A/H is usually 5 days.
3.What payment methods are accepted for SMAJ36AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ36AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ36AHM3_A/H?
SMAJ36AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ36AHM3_A/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 SMAJ36AHM3_A/H?
For technical support, including SMAJ36AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ36AHM3_A/H requirements.
6.How does Aetrix verify that SMAJ36AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMAJ36AHM3_A/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 SMAJ36AHM3_A/H meets industry standards.
7.What is the process for return or replacement of SMAJ36AHM3_A/H?
All SMAJ36AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ36AHM3_A/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 SMAJ36AHM3_A/H part is unused and in its original packaging.
Return procedure for SMAJ36AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ36AHM3_A/H Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
