My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMCJ5.0CAHM3/H
- Part No.:
- SMCJ5.0CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ5.0CAHM3/H.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,892
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCJ5.0CAHM3/H from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection in DC power rails and signal lines. It features a 5.0 V standoff voltage (VWM), 1500 W peak pulse power rating (10/1000 µs), clamping voltage of 9.2 V at 163 A, and operates across -55 °C to +150 °C junction temperature. It is used in automotive sensor interfaces and industrial I/O protection where fast response and low clamping are critical.
For engineers reviewing the SMCJ5.0CAHM3/H datasheet, SMCJ5.0CAHM3/H pinout, SMCJ5.0CAHM3/H application, or SMCJ5.0CAHM3/H equivalent, key selection criteria include bidirectional clamping behavior, 7.07 V maximum breakdown voltage at 10 mA, MSL Level 1 moisture sensitivity, halogen-free RoHS compliance, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This device implements a silicon avalanche diode structure optimized for transient suppression with sub-nanosecond response time and low incremental surge resistance. Its bidirectional symmetry ensures identical clamping performance in both polarities, enabling use on AC-coupled or floating signal paths without polarity concerns.
The SMCJ5.0CAHM3/H leverages glass-passivated junction technology and DO-214AB (SMC) package thermal design to sustain 200 A non-repetitive forward surge current (IFSM) and dissipate 6.5 W continuously at TA = 50 °C. Its 0.057 %/°C VBR temperature coefficient ensures stable breakdown across operating temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse working voltage before clamping initiates |
| VBR (min/max) | 6.40 V / 7.07 V at IT = 10 mA - Ensures reliable turn-on above normal operating voltage with margin |
| VC @ IPPM | 9.2 V at 163 A (10/1000 µs) - Low clamping voltage limits stress on downstream ICs during transients |
| PPPM | 1500 W - Handles high-energy surges such as ISO 7637-2 Pulse 1/2a/5a in automotive systems |
| TJ max. | +150 °C - Supports under-hood and industrial environments with elevated ambient temperatures |
| Package | SMC (DO-214AB) - Surface-mount footprint compatible with automated assembly and provides 75 °C/W RθJA |
| Compliance | AEC-Q101 qualified, halogen-free, RoHS-compliant - Meets automotive reliability and environmental requirements |
Pinout & Package
SMCJ5.0CAHM3/H uses the SMC (DO-214AB) surface-mount package with two terminals: anode and cathode. As a bidirectional device, it has no polarity marking and functions identically in either orientation. The package features 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 | Transient current entry point (positive polarity) | Connects to protected line; conducts during positive transients when voltage exceeds VBR |
| Cathode | Transient current entry point (negative polarity) | Connects to protected line; conducts during negative transients when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR (6.40–7.07 V) and VC (9.2 V) in both directions enables AC and floating-line protection without polarity constraints |
| Low clamping ratio | VC/VWM = 1.84 - Minimizes voltage overshoot during surge events relative to working voltage |
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Halogen-free & RoHS | HM3 suffix confirms halogen-free molding compound and full RoHS compliance for green manufacturing |
| MSL Level 1 | Rated for unlimited floor life at ≤30 °C/60% RH - eliminates bake requirements prior to reflow |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS placed directly at connector or IC input to clamp transients before they reach sensitive interface circuitry. Use Value: Withstands ISO 16750-2 load dump pulses and IEC 61000-4-2 ±15 kV contact discharge while maintaining <9.2 V clamping at 163 A. | Use Scenario: Safeguarding digital and analog inputs/outputs on programmable logic controller modules exposed to field wiring surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC I/O channels, coordinated with upstream fusing and filtering. Use Value: 1500 W peak power rating absorbs repetitive switching transients from solenoid valves and motor drives without degradation. |
| Consumer Power Adapter Input | Telecom Line Interface |
Use Scenario: Secondary-side surge protection on 5 V USB-C PD adapter outputs against hot-plug and cable-induced transients. IC Role / Device Role / Timing Role: Final-stage TVS on low-voltage DC output rail, placed after DC-DC converter and before connector. Use Value: 5.0 V VWM aligns precisely with 5 V system rails; 9.2 V VC prevents latch-up or damage to connected devices during surge events. | Use Scenario: Protection of Ethernet PHY or RS-485 transceiver pins in network edge equipment subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional clamp on differential pairs or single-ended control lines, mounted adjacent to connector. Use Value: Symmetrical clamping ensures equal protection on both signal polarities; DO-214AB footprint supports compact PCB layout near connectors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0CAHE3 | Lower PPPM (400 W), SMA package (DO-214AC), higher RθJA (100 °C/W) | Suitable for lower-energy transients and space-constrained consumer designs, not automotive-grade | Select when cost or board area is prioritized over surge energy handling and AEC-Q101 compliance |
| SMCJ5.0AHE3 | Unidirectional version; same VWM, VBR, VC, and PPPM but polarity-sensitive | Required only where DC bias polarity is fixed and reverse conduction must be blocked | Choose only if circuit topology mandates unidirectional blocking; otherwise SMCJ5.0CAHM3/H offers broader flexibility |
Compared with SMAJ5.0CAHE3 and SMCJ5.0AHE3, the SMCJ5.0CAHM3/H delivers superior surge robustness (1500 W vs. 400 W), automotive qualification, and bidirectional operation-making it the preferred choice for high-reliability industrial and automotive power and signal line protection.
Availability
SMCJ5.0CAHM3/H is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC I/O protection, and telecom line interface applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for SMCJ5.0CAHM3/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 SMCJ series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecommunications systems where failure resilience and AEC-Q101 compliance are mandatory.
FAQ
What does the "HM3" suffix indicate in SMCJ5.0CAHM3/H?
The HM3 suffix in SMCJ5.0CAHM3/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It specifies that the device uses a halogen-free molding compound, meets JEDEC JESD201 Class 2 whisker resistance, and is rated for automotive-grade reliability-distinct from commercial-grade M3 or E3 variants.
Is SMCJ5.0CAHM3/H unidirectional or bidirectional?
SMCJ5.0CAHM3/H is a bidirectional transient voltage suppressor. The "CA" in the part number explicitly indicates bidirectional functionality, meaning it clamps symmetrically for both positive and negative voltage transients without polarity dependence-ideal for AC-coupled or floating signal lines.
What is the maximum clamping voltage of SMCJ5.0CAHM3/H at rated surge current?
The maximum clamping voltage (VC) of SMCJ5.0CAHM3/H is 9.2 V at 163 A peak pulse current (IPPM), tested with a 10/1000 µs waveform. This value is guaranteed per Vishay's datasheet and defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
Does SMCJ5.0CAHM3/H require special PCB layout considerations?
Yes-SMCJ5.0CAHM3/H should be placed as close as possible to the protected port or IC input with minimal trace length. Mounting on 8.0 mm × 8.0 mm copper pads per terminal is recommended to achieve specified thermal and surge performance; inadequate copper area reduces IPPM derating and increases clamping voltage under surge conditions.
How does SMCJ5.0CAHM3/H compare to standard Zener diodes for surge protection?
Unlike standard Zener diodes, SMCJ5.0CAHM3/H is specifically designed for transient suppression: it offers 1500 W peak pulse power, sub-nanosecond response, low dynamic impedance, and guaranteed clamping performance under high-current surges. Standard Zeners lack surge-rated construction, thermal robustness, and consistent clamping behavior at high di/dt.
SMCJ5.0CAHM3/H 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 163A
- 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)
SMCJ5.0CAHM3/H FAQ
1.How can I place an order for SMCJ5.0CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ5.0CAHM3/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 SMCJ5.0CAHM3/H reliable?
The price and inventory of SMCJ5.0CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ5.0CAHM3/H is usually 5 days.
3.What payment methods are accepted for SMCJ5.0CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ5.0CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ5.0CAHM3/H?
SMCJ5.0CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ5.0CAHM3/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 SMCJ5.0CAHM3/H?
For technical support, including SMCJ5.0CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ5.0CAHM3/H requirements.
6.How does Aetrix verify that SMCJ5.0CAHM3/H is sourced from the original manufacturer or authorized distributors?
All SMCJ5.0CAHM3/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 SMCJ5.0CAHM3/H meets industry standards.
7.What is the process for return or replacement of SMCJ5.0CAHM3/H?
All SMCJ5.0CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ5.0CAHM3/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 SMCJ5.0CAHM3/H part is unused and in its original packaging.
Return procedure for SMCJ5.0CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ5.0CAHM3/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 …
