My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SM5S10AHM3/I
- Part No.:
- SM5S10AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-218AC
- Datasheet:
-
SM5S10AHM3/I.pdf
- Description:
- TVS DIODE 10VWM 17VC DO218AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,611
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SM5S10AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor in DO-218AB package, rated for 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown (VBR), 3600 W peak pulse power (10/1000 μs), and 175 °C junction temperature - designed for automotive load dump protection in engine control units and body electronics.
For engineers reviewing the SM5S10AHM3/I datasheet, SM5S10AHM3/I pinout, SM5S10AHM3/I application, or SM5S10AHM3/I equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJM = 0.45 °C/W), clamping behavior (VC = 17.0 V at IPPM), and DO-218AB mechanical layout for PCB layout validation and high-reliability system design.
Technical Context
This device uses passivated anisotropic rectifier technology with junction passivation optimized for stable operation up to TJ = 175 °C, meeting ISO 7637-2 surge requirements for automotive load dump transients. Its unidirectional polarity and heatsink-anode configuration enable direct mounting to metal chassis for enhanced thermal dissipation.
Rated for 500 A peak forward surge current (IFSM, 8.3 ms half-sine) and 5 W steady-state power dissipation on infinite heatsink, the SM5S10AHM3/I supports robust transient suppression without derating under sustained ambient temperatures up to +125 °C when mounted per JEDEC 51-14 TDIM methodology.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - maximum continuous reverse operating voltage before clamping begins; defines safe DC bias margin in 12 V automotive systems. |
| VBR (min/typ/max) | 11.1 / 11.7 / 12.3 V at IT = 5 mA - precise breakdown threshold ensures predictable turn-on during transients while minimizing false triggering. |
| VC @ IPPM | 17.0 V at 212 A (10/1000 μs) - clamping voltage limits downstream IC stress to safe levels during ISO 7637-2 Pulse 5a events. |
| PPPM (10/1000 μs) | 3600 W - peak surge handling capacity sufficient for worst-case load dump energy in 12 V vehicle architectures. |
| RθJM | 0.45 °C/W - low junction-to-mount thermal resistance enables direct heatsink coupling for sustained power dissipation without thermal runaway. |
| TJ max. | +175 °C - AEC-Q101 qualified junction rating supports under-hood placement in modern engine compartments. |
| ID @ VWM | 15 μA at TA = 25 °C - ultra-low leakage preserves battery life in always-on automotive modules. |
Pinout & Package
Package: DO-218AB - molded surface-mount case with metal heatsink terminal (anode), matte tin-plated leads, UL 94 V-0 flammability rating, MSL Level 1 (245 °C peak reflow), and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Lead 1 (Anode) | Input terminal for transient energy path | Connected to protected line (e.g., battery rail); serves as primary heat conduction path to PCB copper or external heatsink. |
| Lead 2 / Metal Heatsink | Anode-side thermal and electrical reference | Must be soldered to large copper pour or chassis ground for RθJM = 0.45 °C/W performance; polarity marker indicates anode orientation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - required for ECUs and ADAS modules. |
| Junction passivation | Optimized die surface treatment prevents moisture-induced degradation and leakage drift over 15+ year service life in humid environments. |
| ISO 7637-2 compliance | Meets Pulse 5a (load dump) test conditions up to 35 V, 400 ms duration - eliminates need for external filtering in OEM-compliant designs. |
| Low VF at high IF | VF ≤ 2.0 V at IF = 100 A (300 μs pulse) - minimizes forward conduction loss during bidirectional surge events in clamp-assisted topologies. |
| MSL Level 1 rating | Supports standard SMT reflow profiles without baking - reduces manufacturing cost and avoids moisture-related popcorning defects. |
Applications
| Engine Control Unit (ECU) Power Input Protection | Body Control Module (BCM) Battery Rail Clamping |
|---|---|
Use Scenario: Suppresses 35 V, 400 ms load dump transients generated by alternator field coil de-energization during ignition-off events. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery rail and input filter capacitor, clamping within 1 ns to limit downstream voltage to ≤17.0 V. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V LDOs and microcontrollers without requiring oversized input capacitors or series resistors. |
Use Scenario: Protects BCM power supply against coupled transients from window motor, seat actuator, and lighting load switching. IC Role / Device Role / Timing Role: Standoff-rated TVS (VWM = 10 V) installed upstream of DC/DC converter, conducting only during >11.1 V surges with <15 μA leakage at nominal 12 V. Use Value: Enables use of compact 5 V buck regulators by limiting input voltage excursions to safe levels during repetitive 100 A, 10/1000 μs pulses. |
| Advanced Driver Assistance Systems (ADAS) Camera Power Line | Electric Power Steering (EPS) Motor Driver Supply Rail |
Use Scenario: Shields 12 V camera module power input from ignition-switching noise and alternator ripple spikes in rear-view and surround-view systems. IC Role / Device Role / Timing Role: Fast-response unidirectional suppressor with 175 °C TJ rating mounted directly on camera housing metal frame for thermal stability. Use Value: Maintains signal integrity in image sensor analog front-end by limiting voltage overshoot to <17.0 V during 200 A transients, avoiding pixel corruption or reset events. |
Use Scenario: Absorbs regenerative energy spikes from EPS motor back-EMF during rapid deceleration and steering correction maneuvers. IC Role / Device Role / Timing Role: High-surge-capability TVS (PPPM = 3600 W) connected across H-bridge supply rails, clamping within nanoseconds to protect gate drivers and current sense amplifiers. Use Value: Eliminates need for snubber networks or active crowbar circuits, reducing BOM count and PCB area while sustaining 175 °C under-hood operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10AHE3_A/H | DO-214AC package, lower PPPM (400 W), VBR = 11.1–12.3 V, RθJA = 65 °C/W, same AEC-Q101 grade | Limited to low-energy transients (e.g., ESD, I/O line protection); unsuitable for load dump due to insufficient surge rating | Select SMAJ10AHE3_A/H only for space-constrained non-load-dump applications where thermal mass is limited and peak power <500 W. |
| SM5S10AHM3 | Identical electrical specs and DO-218AB package; differs only in packaging - SM5S10AHM3/I uses 13" tape/reel with anode-toward-sprocket-hole orientation, while SM5S10AHM3 uses standard orientation | No functional or electrical difference; identical thermal, surge, and reliability performance | SM5S10AHM3/I is preferred for automated pick-and-place with vision alignment systems requiring consistent anode orientation; SM5S10AHM3 suits legacy feeders. |
Compared with SMAJ10AHE3_A/H, SM5S10AHM3/I delivers 9× higher surge power handling and 0.45 °C/W vs. ~30 °C/W junction-to-mount resistance - enabling direct chassis mounting in load dump-critical systems. Versus SM5S10AHM3, the /I suffix guarantees anode-first tape orientation for high-yield SMT assembly.
Availability
SM5S10AHM3/I is available at Aetrix Electronics and suitable for automotive engine control units, body electronics modules, ADAS camera power supplies, and electric power steering systems requiring stable component supply with full AEC-Q101 traceability and long-term lifecycle support.
Supply support for SM5S10AHM3/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 SM5SxxAHM3 family was engineered specifically for automotive load dump protection, combining DO-218AB thermal efficiency, AEC-Q101 qualification, and 3600 W surge capability to replace older axial-leaded TVS solutions in next-generation ECUs and ADAS platforms.
FAQ
What is the clamping voltage of SM5S10AHM3/I at its rated peak pulse current?
The SM5S10AHM3/I has a maximum clamping voltage (VC) of 17.0 V at its rated peak pulse current (IPPM) of 212 A under the 10/1000 μs waveform condition. This value is measured per the test method defined in the Vishay datasheet 88382 and ensures downstream circuitry remains within safe operating voltage limits during standardized load dump transients. The SM5S10AHM3/I maintains this clamping performance across its full operating temperature range.
Is SM5S10AHM3/I qualified to AEC-Q101 standards?
Yes, SM5S10AHM3/I is fully AEC-Q101 qualified, as confirmed in the Vishay datasheet 88382 and ordering information table. This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and humidity testing - validating its suitability for automotive under-hood applications. The "H" in the part number explicitly denotes AEC-Q101 qualification, and the device carries RoHS-compliant, halogen-free construction per Vishay's material categorization policy.
What does the "/I" suffix mean in SM5S10AHM3/I?
The "/I" suffix in SM5S10AHM3/I specifies the packaging configuration: 13-inch diameter plastic tape and reel with anode lead oriented toward the sprocket hole. This orientation enables reliable vision-based pick-and-place alignment in high-speed SMT lines. The electrical, thermal, and reliability characteristics of SM5S10AHM3/I are identical to SM5S10AHM3; only the tape orientation differs, making /I optimal for automated assembly systems requiring consistent anode positioning.
Can SM5S10AHM3/I be used in bidirectional transient protection circuits?
No, SM5S10AHM3/I is strictly unidirectional, as stated in the Vishay datasheet features section and confirmed by its polarity marking (heatsink = anode). It conducts only during positive transients relative to the anode terminal and provides no suppression for negative-going surges. For bidirectional protection, a separate complementary device or a dedicated bidirectional TVS such as SMBJ10CAHE3 must be used - SM5S10AHM3/I is not rated or characterized for reverse conduction.
What is the thermal resistance from junction to mount (RθJM) for SM5S10AHM3/I?
The SM5S10AHM3/I has a typical junction-to-mount thermal resistance (RθJM) of 0.45 °C/W, measured using the Transient Dual Interface Method (TDIM) per JEDEC 51-14. This low value is achieved via direct metal heatsink contact and enables efficient heat transfer to a PCB copper pour or external chassis. Proper soldering of the metal heatsink terminal to ≥25 mm² of 2 oz. copper is required to realize this thermal performance in actual designs.
SM5S10AHM3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-218AC
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 212A
- Power - Peak Pulse:
- 3600W (3.6kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-218AC
SM5S10AHM3/I FAQ
1.How can I place an order for SM5S10AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM5S10AHM3/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 SM5S10AHM3/I reliable?
The price and inventory of SM5S10AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM5S10AHM3/I is usually 5 days.
3.What payment methods are accepted for SM5S10AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM5S10AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM5S10AHM3/I?
SM5S10AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM5S10AHM3/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 SM5S10AHM3/I?
For technical support, including SM5S10AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM5S10AHM3/I requirements.
6.How does Aetrix verify that SM5S10AHM3/I is sourced from the original manufacturer or authorized distributors?
All SM5S10AHM3/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 SM5S10AHM3/I meets industry standards.
7.What is the process for return or replacement of SM5S10AHM3/I?
All SM5S10AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SM5S10AHM3/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 SM5S10AHM3/I part is unused and in its original packaging.
Return procedure for SM5S10AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM5S10AHM3/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 …
