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Vishay General Semiconductor - Diodes Division SMCJ90AHM3/I
- Part No.:
- SMCJ90AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ90AHM3/I.pdf
- Description:
- TVS DIODE 90VWM 146VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,063
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Product details
Overview
SMCJ90AHM3/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 of DC power rails and signal lines. It features a 90 V stand-off voltage (VWM), 146 V maximum clamping voltage at 10.3 A peak pulse current (IPPM), and 1500 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive power supply inputs and industrial sensor interfaces.
For engineers reviewing the SMCJ90AHM3/I datasheet, SMCJ90AHM3/I pinout, SMCJ90AHM3/I application, or SMCJ90AHM3/I equivalent, key selection criteria include its AEC-Q101 qualification, halogen-free RoHS-compliant construction (HM3 suffix), 150 °C max junction temperature, and verified clamping performance under repetitive surge stress per IEC 61000-4-5.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds 100–111 V breakdown range (VBR), it avalanches to limit transient energy across protected circuit nodes. Its low incremental surge resistance ensures stable clamping under 10/1000 µs surges up to 1500 W without thermal runaway.
Designed for automated SMT assembly, the device uses glass-passivated junction technology and matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. Polarity is marked by cathode band; no marking on bidirectional variants - but SMCJ90AHM3/I is unidirectional per ordering code "A" and marking "GGX".
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - maximum continuous reverse operating voltage before clamping initiates; defines safe DC rail margin for 12 V/24 V/48 V systems. |
| VBR min/max | 100 V / 111 V at 1 mA test current - tight breakdown tolerance ensures predictable turn-on timing during fast transients. |
| VC @ IPPM | 146 V at 10.3 A - clamping voltage limits downstream IC stress during 1500 W surge; critical for MOSFET gate and MCU I/O protection. |
| PPPM | 1500 W - peak pulse power handling with 10/1000 µs waveform; supports Level 4 IEC 61000-4-5 compliance in industrial environments. |
| TJ max | +150 °C - enables operation in under-hood automotive locations and enclosed industrial enclosures without derating. |
| Package | SMC (DO-214AB) - 7.75 mm × 6.22 mm footprint with 1.52 mm lead thickness; compatible with standard SMT reflow profiles (MSL Level 1, 260 °C peak). |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per AEC specification; suffix HM3 denotes qualification. |
Pinout & Package
SMCJ90AHM3/I is housed in the SMC (DO-214AB) surface-mount package: 2-terminal, unidirectional configuration with cathode identified by a visible band on the body. The package uses matte tin-plated leads solderable per J-STD-002 and JESD 22-B102, and meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-potential node; completes clamping path during overvoltage events. |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., 24 V rail); avalanche conduction occurs when voltage exceeds VBR relative to anode. |
Key Features
| Feature | Design Value |
|---|---|
| Halogen-free & RoHS-compliant | HM3 suffix confirms halogen-free molding compound and lead finish - meets automotive and EU environmental mandates without compromising surge robustness. |
| Very fast response time | < 1.0 ps intrinsic junction response - clamps transients before sensitive logic or analog circuits experience damage thresholds. |
| Low incremental surge resistance | Ensures minimal voltage overshoot during high-current surges; stabilizes VC across varying IPPM loads per IEC 61000-4-5 testing. |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow without baking - simplifies manufacturing for high-volume automotive ECUs and industrial PLCs. |
| Glass passivated junction | Provides stable leakage performance (< 1 µA at VWM) and long-term reliability under thermal cycling and humidity exposure. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: 24 V battery-fed control module exposed to load dump (ISO 16750-2) and jump-start surges. IC Role / Device Role / Timing Role: Shunt clamping element placed between power rail and chassis ground; responds within picoseconds to clamp transients above 90 V. Use Value: Limits voltage seen by downstream DC-DC converters and microcontrollers to ≤146 V, preventing latch-up or gate oxide rupture. |
Use Scenario: Analog output line (4–20 mA) from pressure sensor routed through noisy factory environment with EMI and cable-induced surges. IC Role / Device Role / Timing Role: Bidirectional-capable protection (though SMCJ90AHM3/I is unidirectional, used with series impedance for asymmetrical signal paths) placed at connector entry point. Use Value: Clamps induced spikes to safe levels while maintaining < 1 µA leakage at 24 V nominal, preserving signal accuracy and ADC resolution. |
| Telecom DC Power Feeds | Motor Drive DC Bus Snubbing |
|
Use Scenario: -48 V telecom rectifier output feeding base station backplane with lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Unidirectional TVS connected cathode-to-rail, anode-to-ground; absorbs differential-mode surges on primary DC distribution. Use Value: Withstands repeated 1500 W pulses without degradation, ensuring uptime in outdoor cabinet installations per GR-1089-CORE. |
Use Scenario: 300 V DC bus in BLDC motor drive subjected to switching transients from IGBT commutation and regenerative braking. IC Role / Device Role / Timing Role: Parallel-mounted TVS across bus rails to clamp inductive kickback; coordinated with bulk capacitance to reduce dv/dt stress. Use Value: 146 V clamping at 10.3 A prevents overvoltage failure of bus capacitors and gate drivers during rapid current interruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ90AHE3/A | Same VWM (90 V) and VC (146 V), but lower PPPM (400 W); SMA package (smaller footprint, higher RθJA = 110 °C/W). | Restricted to low-energy surges (IEC 61000-4-2 only); unsuitable for IEC 61000-4-5 Level 4 or automotive load dump. | Select when board space is constrained and surge threat level is limited to ESD or low-power transients. |
| SMCJ90A-M3/57T | Identical electrical specs and SMC package, but M3 suffix indicates halogen-free RoHS compliance without AEC-Q101 qualification. | Lacks automotive reliability validation; not approved for under-hood or safety-critical modules per OEM requirements. | Choose for commercial/industrial designs where AEC-Q101 is not mandated and cost optimization is prioritized. |
Compared with SMAJ90AHE3/A and SMCJ90A-M3/57T, SMCJ90AHM3/I uniquely combines 1500 W surge capability, AEC-Q101 qualification, and halogen-free construction - making it the only option qualified for high-reliability automotive power domains requiring both robustness and regulatory compliance.
Availability
SMCJ90AHM3/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controllers, and telecom power distribution systems requiring stable component supply and full traceability.
Supply support for SMCJ90AHM3/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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The SMCJ series was engineered specifically for high-energy transient suppression in harsh environments - emphasizing AEC-Q101 qualification, stable clamping, and manufacturability in automated SMT lines.
FAQ
What is the clamping voltage of SMCJ90AHM3/I at its rated peak pulse current?
The SMCJ90AHM3/I has a maximum clamping voltage (VC) of 146 V at its rated peak pulse current (IPPM) of 10.3 A, measured with a 10/1000 µs waveform. This value is specified in the Vishay datasheet (Document Number: 88394, Revision: 09-Jan-2024) and defines the upper voltage limit imposed on protected circuitry during surge events. The SMCJ90AHM3/I maintains this clamping performance across its operational temperature range.
Is SMCJ90AHM3/I qualified for automotive applications?
Yes, SMCJ90AHM3/I is AEC-Q101 qualified, as confirmed by the "HM3" suffix and documentation in Vishay's official datasheet. The HM3 designation indicates halogen-free, RoHS-compliant construction combined with full AEC-Q101 stress testing - including temperature cycling, high-temperature reverse bias, and ESD. This makes SMCJ90AHM3/I suitable for under-hood and chassis-mounted automotive modules.
What does the "I" in SMCJ90AHM3/I indicate?
The "I" in SMCJ90AHM3/I denotes the packaging configuration: 13-inch diameter plastic tape and reel, with a base quantity of 3500 units. This is defined in Vishay's Ordering Information table (page 3 of Document Number 88394). The "HM3" portion specifies halogen-free, RoHS-compliant, and AEC-Q101-qualified construction, while "A" confirms unidirectional polarity.
How does SMCJ90AHM3/I differ from bidirectional SMCJ90CA variants?
SMCJ90AHM3/I is unidirectional, with polarity marked by a cathode band and intended for DC rail protection where current flows in one direction. In contrast, SMCJ90CA devices are bidirectional, have no polarity marking, and protect AC or symmetrical signal lines. Their breakdown and clamping characteristics apply equally in both directions, whereas SMCJ90AHM3/I conducts only in reverse bias - forward voltage drop is 3.5 V at 100 A, per datasheet note (6).
What is the thermal resistance of SMCJ90AHM3/I, and how does it affect layout?
The SMCJ90AHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. This value assumes minimum recommended pad layout per Vishay's mechanical drawing. To maintain safe operation at full 1500 W surge rating, PCB layout must provide adequate copper area and avoid thermal bottlenecks - undersized pads increase junction temperature and risk parametric shift or failure during repeated surges.
SMCJ90AHM3/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):
- 90V
- Voltage - Breakdown (Min):
- 100V
- Voltage - Clamping (Max) @ Ipp:
- 146V
- Current - Peak Pulse (10/1000µs):
- 10.3A
- 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)
SMCJ90AHM3/I FAQ
1.How can I place an order for SMCJ90AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ90AHM3/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 SMCJ90AHM3/I reliable?
The price and inventory of SMCJ90AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ90AHM3/I is usually 5 days.
3.What payment methods are accepted for SMCJ90AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ90AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ90AHM3/I?
SMCJ90AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ90AHM3/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 SMCJ90AHM3/I?
For technical support, including SMCJ90AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ90AHM3/I requirements.
6.How does Aetrix verify that SMCJ90AHM3/I is sourced from the original manufacturer or authorized distributors?
All SMCJ90AHM3/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 SMCJ90AHM3/I meets industry standards.
7.What is the process for return or replacement of SMCJ90AHM3/I?
All SMCJ90AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ90AHM3/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 SMCJ90AHM3/I part is unused and in its original packaging.
Return procedure for SMCJ90AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ90AHM3/I Tags
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