My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMCJ6.5AHM3_A/H
- Part No.:
- SMCJ6.5AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ6.5AHM3_A/H.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,513
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCJ6.5AHM3_A/H from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 6.5 V stand-off voltage (VWM), 7.22–7.98 V breakdown voltage (VBR) at 10 mA, 1500 W peak pulse power (10/1000 µs), 133.9 A peak pulse current (IPPM), and clamps to ≤11.2 V under surge. It is halogen-free, RoHS-compliant, and qualified to AEC-Q101 for automotive electronics.
For engineers reviewing the SMCJ6.5AHM3_A/H datasheet, SMCJ6.5AHM3_A/H pinout, SMCJ6.5AHM3_A/H application, or SMCJ6.5AHM3_A/H equivalent, key selection criteria include its 6.5 V VWM, 11.2 V clamping voltage at rated IPPM, unidirectional polarity with cathode band marking, SMC package thermal resistance (RθJA = 75 °C/W), and AEC-Q101 qualification status - all critical for automotive power rail and sensor interface protection design.
Technical Context
This TVS diode operates as a voltage-clamping device that remains high-impedance below VWM (6.5 V) and rapidly transitions to low-impedance conduction above VBR (min. 7.22 V) to divert transient energy. Its glass-passivated junction ensures stable leakage (<500 µA at VWM) and fast response time (<1 ns).
The device is rated for 1500 W peak pulse power per 10/1000 µs waveform, with a maximum clamping voltage of 11.2 V at 133.9 A, enabling effective protection of downstream ICs such as microcontrollers, CAN transceivers, and sensor front-ends against ESD, load dump, and inductive switching transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - Maximum continuous reverse operating voltage before clamping begins; sets upper limit for protected circuit's normal operating range. |
| VBR (min/max) | 7.22 V / 7.98 V at 10 mA - Confirmed breakdown threshold range; ensures reliable turn-on margin above VWM. |
| VC @ IPPM | ≤11.2 V at 133.9 A - Clamping voltage under full-rated surge; determines maximum stress seen by protected IC during worst-case transient. |
| PPPM | 1500 W - Peak pulse power handling capability with 10/1000 µs waveform; defines surge energy absorption capacity. |
| IPPM | 133.9 A - Corresponding peak surge current at VC; used to size PCB trace width and verify system-level surge compliance. |
| TJ max. | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments with adequate thermal pad layout. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22 standards. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode identified by a single band on the body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point for unidirectional TVS | Connected to ground or return path; completes clamping loop when cathode is tied to protected line. |
| Cathode | High-side connection point (marked with band) | Connected to the line being protected (e.g., 5 V rail, CAN_H); conducts surge current to ground during overvoltage event. |
Key Features
| Feature | Design Value |
|---|---|
| Halogen-free & RoHS-compliant | Meets environmental compliance requirements for automotive and industrial production without compromising surge performance. |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage (<500 µA at VWM) across temperature and lifetime. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns or baking requirements. |
| Low incremental surge resistance | Enables tighter VC/IPPM ratio (11.2 V @ 133.9 A), minimizing voltage overshoot during fast transients. |
| Automated placement compatible | Standard SMC footprint and lead geometry support high-speed pick-and-place assembly in volume manufacturing. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 5 V–12 V power distribution networks in engine control units (ECUs) and body control modules (BCMs) against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between supply rail and chassis ground to shunt surge energy away from LDOs, MCUs, and analog front-ends. Use Value: Limits transient voltage to ≤11.2 V during 133.9 A surges, preserving functionality of 5 V logic interfaces and preventing latch-up in downstream silicon. | Use Scenario: Safeguarding analog and digital signal lines (e.g., LIN, analog sensor outputs) in factory automation sensors exposed to ESD and inductive coupling. IC Role / Device Role / Timing Role: Point-of-entry TVS on sensor PCB, cathode tied to signal line and anode to ground, providing sub-nanosecond response to fast transients. Use Value: Maintains signal integrity by clamping ESD events (IEC 61000-4-2 ±25 kV air) while adding <1 pF capacitance - negligible impact on 100 kHz sensor bandwidth. |
| Telecom DC Power Input Protection | Consumer USB Power Delivery Line Protection |
Use Scenario: Securing 12 V/24 V DC inputs of telecom base station power supplies against lightning-induced surges and AC line cross-talk. IC Role / Device Role / Timing Role: Primary-stage TVS on input bulk capacitor node, absorbing up to 1500 W of transient energy before upstream fusing activates. Use Value: Withstands repeated 10/1000 µs surges per IEC 61000-4-5 Level 4 (4 kV), reducing field failure rates in outdoor-installed equipment. | Use Scenario: Adding secondary overvoltage protection on USB-C VBUS lines after primary protection, targeting residual transients missed by upstream TVS arrays. IC Role / Device Role / Timing Role: Standalone unidirectional TVS with 6.5 V VWM placed directly at USB controller VBUS pin to clamp post-regulator spikes. Use Value: Clamps to ≤11.2 V within nanoseconds, preventing damage to USB PD controllers rated for absolute max 20 V - critical for certified interoperability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.5AHE3_A/H | Lower PPPM (400 W), smaller SMA package (DO-214AC), same VWM/VBR specs | Not suitable for 1500 W surge environments; limited to low-energy signal-line protection | Select only when board space is constrained and surge threat level is ≤400 W (e.g., non-automotive I/O lines). |
| SMCJ6.5AHE3_A/H | Identical electrical specs and SMC package, but RoHS-compliant commercial grade (not AEC-Q101 qualified) | Lacks automotive qualification; not approved for under-hood or safety-critical ECUs | Use in cost-sensitive industrial or consumer designs where AEC-Q101 is not mandated. |
Compared with SMCJ6.5AHM3_A/H, SMAJ6.5AHE3_A/H trades surge capacity for compactness, while SMCJ6.5AHE3_A/H offers identical protection performance without automotive qualification - making SMCJ6.5AHM3_A/H the sole choice when both 1500 W clamping and AEC-Q101 compliance are required.
Availability
SMCJ6.5AHM3_A/H is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC input surge suppression requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.
Supply support for SMCJ6.5AHM3_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, 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 - particularly targeting automotive, industrial, and telecom systems where robustness against ISO 7637, IEC 61000-4-2/5, and load-dump events is mandatory.
FAQ
What is the clamping voltage of SMCJ6.5AHM3_A/H at its rated peak pulse current?
The SMCJ6.5AHM3_A/H clamps to a maximum of 11.2 V at its rated peak pulse current of 133.9 A (10/1000 µs waveform). This value is guaranteed per Vishay's datasheet (Document Number: 88394, Rev. 09-Jan-2024) and defines the upper voltage limit imposed on protected circuits during worst-case surge events. The low clamping ratio (VC/VBR ≈ 1.48) reflects optimized junction design for minimal overshoot.
Is SMCJ6.5AHM3_A/H suitable for automotive applications?
Yes, SMCJ6.5AHM3_A/H is AEC-Q101 qualified and specifically intended for automotive use. Its halogen-free, RoHS-compliant construction, MSL Level 1 rating, and validation across temperature cycling, high-temperature reverse bias (HTRB), and ESD stress make it appropriate for under-hood ECUs, body electronics, and ADAS sensor modules. The "HM3" suffix explicitly denotes this automotive qualification.
What does the "HM3" suffix mean in SMCJ6.5AHM3_A/H?
The "HM3" suffix in SMCJ6.5AHM3_A/H indicates halogen-free, RoHS-compliant, and AEC-Q101 qualified construction. Per Vishay's ordering information (Doc. 88394, p.3), "HM3" distinguishes this variant from commercial-grade "M3" parts and confirms full automotive qualification - including extended temperature operation (−55 °C to +150 °C) and reliability testing per JESD22 standards.
How does the SMC (DO-214AB) package of SMCJ6.5AHM3_A/H affect thermal performance?
The SMC (DO-214AB) package of SMCJ6.5AHM3_A/H provides a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads per terminal. This enables effective heat dissipation during repetitive surge events and supports continuous operation at TJ ≤ 150 °C. The package's low profile and matte tin leads also ensure compatibility with automated assembly and lead-free reflow.
Can SMCJ6.5AHM3_A/H be used in bidirectional configurations?
No, SMCJ6.5AHM3_A/H is a unidirectional TVS diode, as indicated by the "A" (not "CA") suffix and cathode band marking. Bidirectional operation requires the "CA" variant (e.g., SMCJ6.5CA). Using SMCJ6.5AHM3_A/H in reverse-biased configurations will result in forward conduction and potential failure. For symmetric transient protection, select the CA-series part with matching voltage ratings.
SMCJ6.5AHM3_A/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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 11.2V
- Current - Peak Pulse (10/1000µs):
- 133.9A
- 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)
SMCJ6.5AHM3_A/H FAQ
1.How can I place an order for SMCJ6.5AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ6.5AHM3_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 SMCJ6.5AHM3_A/H reliable?
The price and inventory of SMCJ6.5AHM3_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 SMCJ6.5AHM3_A/H is usually 5 days.
3.What payment methods are accepted for SMCJ6.5AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ6.5AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ6.5AHM3_A/H?
SMCJ6.5AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ6.5AHM3_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 SMCJ6.5AHM3_A/H?
For technical support, including SMCJ6.5AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ6.5AHM3_A/H requirements.
6.How does Aetrix verify that SMCJ6.5AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMCJ6.5AHM3_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 SMCJ6.5AHM3_A/H meets industry standards.
7.What is the process for return or replacement of SMCJ6.5AHM3_A/H?
All SMCJ6.5AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ6.5AHM3_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 SMCJ6.5AHM3_A/H part is unused and in its original packaging.
Return procedure for SMCJ6.5AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ6.5AHM3_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 …
