My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMCJ36AHM3/I
- Part No.:
- SMCJ36AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ36AHM3/I.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,571
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCJ36AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 36 V standoff voltage (VWM), 40.0–44.2 V breakdown range (VBR), and 1500 W peak pulse power (10/1000 μs). It clamps transients to ≤58.1 V at 25.8 A, operates from –55 °C to +150 °C, and is halogen-free, RoHS-compliant, and AEC-Q101 qualified for automotive electronics.
For engineers reviewing the SMCJ36AHM3/I datasheet, SMCJ36AHM3/I pinout, SMCJ36AHM3/I application, or SMCJ36AHM3/I equivalent, key selection criteria include its unidirectional polarity, 1.0 μA max reverse leakage at 36 V, 0.100 %/°C VBR temperature coefficient, and suitability for protecting MOSFETs, ICs, and sensor signal lines against inductive switching surges and lightning-induced transients.
Technical Context
This TVS diode uses a glass-passivated silicon junction optimized for fast response (<1 ps) and low incremental surge resistance, enabling effective clamping of high-amplitude, short-duration transients without thermal runaway. Its unidirectional configuration provides forward conduction capability (VF = 3.5 V at 100 A) while maintaining precise reverse standoff and sharp avalanche turn-on.
The device is rated for 200 A non-repetitive forward surge current (8.3 ms half-sine), supports automated SMT placement, meets MSL level 1 per J-STD-020 (peak reflow 260 °C), and features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for protected circuitry. |
| VBR min/max | 40.0 V / 44.2 V at 1.0 mA - Confirmed avalanche breakdown range; ensures reliable turn-on within specified tolerance under test conditions. |
| VC @ IPPM | 58.1 V at 25.8 A - Clamped voltage during 1500 W surge; determines maximum stress imposed on downstream components. |
| ID @ VWM | ≤1.0 μA - Reverse leakage current at standoff voltage; critical for low-power and high-impedance signal line protection. |
| PPPM | 1500 W (10/1000 μs) - Peak surge power handling capacity; defines energy absorption capability for standardized lightning/surge waveforms. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive and industrial environments. |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with 8.0 mm × 8.0 mm copper pad thermal design; supports high-current PCB layout. |
Pinout & Package
SMCJ36AHM3/I is housed in an SMC (DO-214AB) plastic package with two terminals: cathode (marked by band) and anode. The package measures 7.75 mm × 6.22 mm × 2.62 mm (L × W × H), features matte tin-plated leads, and is optimized for thermal dissipation via 0.31″ × 0.31″ copper pads per terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Surge current sink | Connected to protected line; conducts transient energy to ground when VWM exceeded; polarity must match system grounding scheme. |
| Anode | Reference/ground return | Typically tied to system ground or low-impedance return path; completes clamping loop during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock per AEC standard. |
| Halogen-free & RoHS | Complies with environmental regulations and eliminates corrosive halogen emissions during board assembly or end-of-life processing. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients, improving clamping precision and reducing stress on protected ICs. |
| MSL Level 1 rating | Enables direct placement into high-temperature reflow profiles (up to 260 °C peak) without moisture-related popcorning or delamination. |
| Glass passivated junction | Provides stable electrical characteristics, enhanced long-term reliability, and immunity to surface contamination or humidity ingress. |
Applications
| Automotive Powertrain Sensors | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protecting crankshaft/camshaft position sensor signal lines from load dump and alternator ripple in 12 V systems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and ECU input to clamp negative-going transients and prevent latch-up. Use Value: Maintains signal integrity below 58.1 V clamping threshold while surviving repeated 25.8 A surges per ISO 7637-2 Pulse 5a. | Use Scenario: Safeguarding microcontroller GPIO pins connected to external limit switches or emergency stop circuits in factory automation. IC Role / Device Role / Timing Role: Standoff-rated TVS on digital input lines to absorb inductive kickback from relay coils and solenoid drivers. Use Value: Prevents false triggering and permanent damage with ≤1.0 μA leakage at 36 V, preserving high-impedance input bias networks. |
| Telecom Line Interface Protection | Consumer Appliance Control Boards |
Use Scenario: Shielding RS-485 transceiver data lines from ESD and lightning-induced surges in outdoor base station equipment. IC Role / Device Role / Timing Role: Primary-level TVS on differential bus lines, coordinated with secondary GDT or polymer PTC for multi-stage protection. Use Value: Fast <1 ps response ensures clamping occurs before transceiver internal structures are stressed, meeting IEC 61000-4-5 Level 4 requirements. | Use Scenario: Securing MCU reset and communication lines on washing machine main control boards exposed to motor commutation noise. IC Role / Device Role / Timing Role: Low-leakage unidirectional suppressor on 3.3 V or 5 V supply rails feeding sensitive logic and display drivers. Use Value: Halogen-free construction meets IEC 61249-2-21 compliance for white goods, while 150 °C TJ max supports sealed enclosure thermal environments. |
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 | Lower PPPM (400 W), SMA package (smaller footprint, lower thermal mass), same VWM/VBR specs. | Suitable for space-constrained consumer electronics but not for automotive or industrial surge levels requiring 1500 W. | Select when board area is limited and surge energy is ≤400 W; verify thermal derating for ambient >70 °C. |
| 1.5KE36A | Through-hole DO-201 package, identical VWM/VBR/VC, higher RθJA (60 °C/W), no AEC-Q101 or halogen-free certification. | Used in legacy industrial power supplies where manual assembly or high-reliability through-hole mounting is required. | Choose only for prototyping or non-automotive production; lacks SMCJ36AHM3/I's automotive qualification and SMT compatibility. |
Compared with SMAJ36AHE3/A and 1.5KE36A, SMCJ36AHM3/I delivers 3.75× higher surge power handling in a surface-mount package with automotive-grade reliability, halogen-free materials, and superior thermal performance-making it the preferred choice for production-grade automotive and industrial designs demanding robust, scalable protection.
Availability
SMCJ36AHM3/I is available at Aetrix Electronics and suitable for automotive powertrain systems, industrial motor drives, telecom infrastructure interfaces, and consumer appliance control boards requiring stable component supply, long lifecycle support, and AEC-Q101 compliance.
Supply support for SMCJ36AHM3/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, efficiency, and application-specific optimization.
The SMCJ series was engineered specifically for high-energy transient suppression in harsh environments-including automotive, industrial, and telecom-where consistent clamping performance, thermal resilience, and qualification to AEC-Q101 are mandatory.
FAQ
What is the clamping voltage of SMCJ36AHM3/I at its rated peak pulse current?
The SMCJ36AHM3/I has a maximum clamping voltage (VC) of 58.1 V when subjected to its rated peak pulse current (IPPM) of 25.8 A under the standard 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during a full-power surge event. The SMCJ36AHM3/I maintains this clamping performance across its operational temperature range and is validated for repeatable behavior in automotive-grade applications.
Is SMCJ36AHM3/I suitable for bidirectional signal line protection?
No, SMCJ36AHM3/I is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. It conducts only in reverse breakdown and forward conduction modes-not symmetrically in both directions. For bidirectional protection (e.g., AC lines or differential buses), the SMCJ36CA variant must be used. Using SMCJ36AHM3/I on bidirectional signals risks forward conduction during normal operation and failure to clamp positive transients correctly.
Does SMCJ36AHM3/I meet automotive qualification standards?
Yes, SMCJ36AHM3/I is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HM3", which denotes halogen-free, RoHS-compliant, and AEC-Q101 qualified construction. This qualification covers stress tests including temperature cycling, high-temperature operating life, and ESD, making SMCJ36AHM3/I suitable for under-hood and chassis-mounted automotive applications per ISO/TS 16949 requirements.
What is the thermal resistance of SMCJ36AHM3/I in standard mounting conditions?
The SMCJ36AHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the recommended 0.31″ × 0.31″ (8.0 mm × 8.0 mm) copper pads per terminal. Its junction-to-lead resistance (RθJL) is 15 °C/W, supporting efficient heat transfer to the PCB. These values assume no additional heatsinking and are critical for calculating safe power derating above 25 °C ambient-especially in enclosed automotive or industrial enclosures.
How does the temperature coefficient of VBR affect SMCJ36AHM3/I performance in wide-temperature applications?
The SMCJ36AHM3/I has a VBR temperature coefficient of +0.100 %/°C, meaning its breakdown voltage increases linearly with junction temperature. At 125 °C, VBR rises ~10% above its 25 °C value (40.0–44.2 V → ~44.0–48.6 V), slightly widening the gap between VWM and VBR. This ensures stable clamping margin across automotive and industrial temperature ranges without premature conduction or loss of protection margin.
SMCJ36AHM3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- 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):
- 25.8A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMC)
SMCJ36AHM3/I FAQ
1.How can I place an order for SMCJ36AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ36AHM3/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 SMCJ36AHM3/I reliable?
The price and inventory of SMCJ36AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ36AHM3/I is usually 5 days.
3.What payment methods are accepted for SMCJ36AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ36AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ36AHM3/I?
SMCJ36AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ36AHM3/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 SMCJ36AHM3/I?
For technical support, including SMCJ36AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ36AHM3/I requirements.
6.How does Aetrix verify that SMCJ36AHM3/I is sourced from the original manufacturer or authorized distributors?
All SMCJ36AHM3/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 SMCJ36AHM3/I meets industry standards.
7.What is the process for return or replacement of SMCJ36AHM3/I?
All SMCJ36AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ36AHM3/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 SMCJ36AHM3/I part is unused and in its original packaging.
Return procedure for SMCJ36AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ36AHM3/I 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 …
