My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMA5J7.0AHM3/I
- Part No.:
- SMA5J7.0AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J7.0AHM3/I.pdf
- Description:
- TVS DIODE 7VWM 12VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,263
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMA5J7.0AHM3/I from Vishay General Semiconductor is a unidirectional 500 W transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, featuring 7.0 V stand-off voltage (VWM), 7.78–8.60 V breakdown voltage (VBR at 10 mA), and 12.0 V clamping voltage (VC) at 41.7 A peak pulse current. It protects MOSFETs and ICs against inductive switching transients in automotive power electronics.
For engineers reviewing the SMA5J7.0AHM3/I datasheet, SMA5J7.0AHM3/I pinout, SMA5J7.0AHM3/I application, or SMA5J7.0AHM3/I equivalent, key selection criteria include clamping performance under 10/1000 µs surge, unidirectional polarity with cathode band marking, AEC-Q101 qualification status, and halogen-free RoHS compliance per HM3 suffix.
Technical Context
This TVS diode uses a glass-passivated silicon junction to achieve fast response time (<1 ps) and low incremental surge resistance, enabling effective suppression of ESD and lightning-induced transients. Its thermal resistance (RθJA = 80 °C/W) and 150 °C maximum junction temperature support operation in high-temperature engine bay environments.
The device is rated for 500 W peak pulse power (10/1000 µs waveform), with 40 A non-repetitive forward surge current capability (8.3 ms half-sine). Polarity is unidirectional, marked by a cathode band; it is not rated for bidirectional use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - Maximum reverse operating voltage before clamping begins; sets safe margin below protected circuit's max operating voltage. |
| VBR (min/max) | 7.78 V / 8.60 V at 10 mA - Confirmed breakdown range ensures reliable turn-on without premature conduction during normal operation. |
| VC @ IPPM | 12.0 V at 41.7 A - Clamping voltage limits transient energy delivered to downstream components during 10/1000 µs surge events. |
| PPPM | 500 W - Peak pulse power rating defines maximum transient energy absorption capacity under standardized surge waveform. |
| IFSM | 40 A - Single half-sine surge current rating (8.3 ms) supports robust protection against inductive load dump in 12 V automotive systems. |
| TJ max | 150 °C - Enables reliable operation in under-hood applications where ambient temperatures exceed 105 °C. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by black band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias | Connected to ground or lower-potential node in unidirectional TVS configuration; enables clamping when cathode-side voltage exceeds VWM. |
| Cathode | Current exit terminal in forward bias; marked with band | Connected to protected line (e.g., battery rail or signal trace); reverse-biased during normal operation, avalanches during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing-required for powertrain and chassis ECUs. |
| Halogen-free & RoHS-compliant (HM3) | Meets automotive environmental standards (e.g., ELV, REACH) and supports lead-free reflow assembly without compromising thermal performance. |
| MSL Level 1 (260 °C peak) | Enables single-reflow soldering without moisture sensitivity concerns-no baking required prior to assembly. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for sensitive gate drivers and microcontrollers. |
Applications
| Automotive Power Distribution | Industrial Motor Drive Protection |
|---|---|
Use Scenario: Suppresses load-dump transients (ISO 7637-2 Pulse 5a) on 12 V battery rails feeding body control modules and lighting drivers. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery input and DC-DC converter input stage. Use Value: Clamps 12 V rail to ≤12.0 V during 100 V/100 ms surges, preventing overvoltage damage to buck controller ICs and MOSFETs. |
Use Scenario: Protects gate driver inputs and feedback sensing lines in variable-frequency AC motor drives exposed to IGBT switching noise. IC Role / Device Role / Timing Role: TVS mounted directly at connector interface to shunt coupled transients before reaching isolated gate driver ICs. Use Value: Sub-12.0 V clamping ensures gate oxide integrity of 20 V-rated SiC MOSFET drivers during repetitive 500 V/1 µs edge-induced coupling. |
| Automotive Sensor Interface | Telecom DC Power Input |
Use Scenario: Shields LIN bus transceivers and Hall-effect sensor supply lines from alternator ripple and relay coil kickback in ADAS camera modules. IC Role / Device Role / Timing Role: Unidirectional TVS on 5 V regulated supply rail upstream of linear regulator feeding sensor ICs. Use Value: 7.0 V VWM provides 2 V headroom above nominal 5 V rail while clamping to 12.0 V-prevents latch-up in CMOS sensor interfaces. |
Use Scenario: Guards -48 V telecom power feed inputs against lightning-induced surges per IEC 61000-4-5 (1.2/50 µs + 8/20 µs combo wave). IC Role / Device Role / Timing Role: TVS configured in series with PTC fuse on primary DC input, cathode to -48 V rail. Use Value: 500 W PPPM rating sustains multiple 1 kV/100 A surge events without degradation, maintaining system uptime in central office equipment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J7.0AHE3/I | Same electrical specs; RoHS-compliant but not halogen-free; AEC-Q101 qualified (HE3 suffix). | Acceptable for non-halogen-restricted automotive programs; lacks halogen-free certification required by some Tier 1 OEMs. | Select HE3 if halogen content is not restricted; HM3 is mandatory where ELV Directive Annex II applies. |
| SMCJ7.0A-M3 | Higher PPPM (1500 W), larger SMC (DO-214AB) package, same VWM/VC; halogen-free RoHS. | Used where higher surge margin is needed (e.g., alternator output lines); requires larger PCB footprint and different pad layout. | Choose SMCJ7.0A-M3 only when 500 W is insufficient; SMA5J7.0AHM3/I remains optimal for space-constrained 12 V distribution nodes. |
Compared with SMA5J7.0AHE3/I, the HM3 version adds halogen-free compliance without electrical trade-offs; versus SMCJ7.0A-M3, SMA5J7.0AHM3/I offers identical clamping performance in 40 % smaller footprint-critical for compact ECU designs.
Availability
SMA5J7.0AHM3/I is available at Aetrix Electronics and suitable for automotive power distribution, industrial motor drive protection, and telecom DC input protection requiring stable component supply across extended production lifecycles.
Supply support for SMA5J7.0AHM3/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, and protection devices with emphasis on automotive, industrial, and computing applications.
The SMA5J series was designed specifically for high-power-density transient suppression in space-constrained automotive and industrial systems, balancing AEC-Q101 reliability with surface-mount manufacturability.
FAQ
What does the "HM3" suffix indicate for SMA5J7.0AHM3/I?
The HM3 suffix denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. SMA5J7.0AHM3/I meets JEDEC JESD201 Class 2 whisker resistance and UL 94 V-0 flammability requirements, making it suitable for automotive under-hood applications where material compliance is strictly enforced.
Is SMA5J7.0AHM3/I bidirectional or unidirectional?
SMA5J7.0AHM3/I is unidirectional. Its cathode is marked by a band on the SMA (DO-214AC) package body. Bidirectional variants carry a "CA" suffix (e.g., SMA5J7.0CA); SMA5J7.0AHM3/I is not rated for symmetrical clamping in both polarities.
What is the maximum clamping voltage for SMA5J7.0AHM3/I under surge conditions?
The maximum clamping voltage (VC) for SMA5J7.0AHM3/I is 12.0 V at 41.7 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is guaranteed per Vishay's datasheet revision 09-Jan-2024, Document Number 88875.
Can SMA5J7.0AHM3/I replace SMA5J7.0A-E3/61 in an existing design?
SMA5J7.0AHM3/I is not a direct replacement for SMA5J7.0A-E3/61 due to differences in qualification and material content: HM3 adds AEC-Q101 qualification and halogen-free compliance, whereas E3 is commercial-grade only. Electrical parameters match, but automotive programs require HM3 validation.
What is the thermal resistance of SMA5J7.0AHM3/I, and how does it affect PCB layout?
SMA5J7.0AHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on 0.2" × 0.2" copper pads. To maintain TJ ≤ 150 °C at full 500 W surge, designers must provide adequate copper area and avoid thermal bottlenecks near the SMA5J7.0AHM3/I footprint.
SMA5J7.0AHM3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7V
- Voltage - Breakdown (Min):
- 7.78V
- Voltage - Clamping (Max) @ Ipp:
- 12V
- Current - Peak Pulse (10/1000µs):
- 41.7A
- Power - Peak Pulse:
- 500W
- 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)
SMA5J7.0AHM3/I FAQ
1.How can I place an order for SMA5J7.0AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J7.0AHM3/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 SMA5J7.0AHM3/I reliable?
The price and inventory of SMA5J7.0AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J7.0AHM3/I is usually 5 days.
3.What payment methods are accepted for SMA5J7.0AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J7.0AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J7.0AHM3/I?
SMA5J7.0AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J7.0AHM3/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 SMA5J7.0AHM3/I?
For technical support, including SMA5J7.0AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J7.0AHM3/I requirements.
6.How does Aetrix verify that SMA5J7.0AHM3/I is sourced from the original manufacturer or authorized distributors?
All SMA5J7.0AHM3/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 SMA5J7.0AHM3/I meets industry standards.
7.What is the process for return or replacement of SMA5J7.0AHM3/I?
All SMA5J7.0AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J7.0AHM3/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 SMA5J7.0AHM3/I part is unused and in its original packaging.
Return procedure for SMA5J7.0AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J7.0AHM3/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
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
