My Inquiry
My Account
Diodes Incorporated ASMA6J6.0A
- Part No.:
- ASMA6J6.0A
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
ASMA6J6.0A.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR PP
- Quantity:
- Payment:
- Shipping:
Inventory:8,226
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ASMA6J6.0A from Diodes Incorporated is a surface-mount unidirectional Transient Voltage Suppressor (TVS) diode designed for automotive-grade overvoltage protection in power rails and signal lines. It features a 6.0 V reverse standoff voltage, 7.41 V minimum breakdown voltage at 10 mA, 9.5 V clamping voltage at 61 A peak pulse current, and 600 W peak pulse power dissipation with <1.0 ns response time. It is AEC-Q101 qualified and used in engine control units, infotainment power inputs, and CAN bus interface protection.
For engineers reviewing the ASMA6J6.0A datasheet, ASMA6J6.0A pinout, ASMA6J6.0A application, or ASMA6J6.0A equivalent, key selection criteria include clamping voltage margin relative to protected IC VCC, IPP capability under ISO 7637-2 Pulse 1/2b waveforms, thermal derating above +85°C ambient, and compatibility with lead-free reflow profiles per J-STD-020 Level 1.
Technical Context
The ASMA6J6.0A operates as a unidirectional avalanche diode, conducting only during negative transients when cathode is biased positive relative to anode. Its breakdown initiates at ≥6.70 V and fully clamps within 1.0 ns to limit downstream voltage excursion to ≤9.5 V at 61 A.
It is rated for 600 W peak pulse power (10/1000 µs waveform), 1.5 W steady-state dissipation on PCB, and supports operating junction temperatures from –55°C to +175°C. Thermal resistance from junction-to-ambient is 75°C/W, confirming suitability for high-reliability automotive environments without forced airflow.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VR) | 6.0 V - Maximum continuous reverse voltage before leakage exceeds 100 µA; sets upper limit for protected rail voltage. |
| Breakdown Voltage (VBR) | 6.70–7.41 V @ 10 mA - Confirmed avalanche initiation range; ensures reliable triggering above nominal supply. |
| Clamping Voltage (VC) | 9.5 V @ 61 A - Maximum voltage seen by downstream circuit during 10/1000 µs transient; defines protection margin. |
| Peak Pulse Power (PPK) | 600 W - Sustains single 1 ms surge without failure; meets ISO 7637-2 Pulse 5a requirements. |
| Response Time | <1.0 ns - Enables suppression of fast ESD and switching noise before sensitive logic is disturbed. |
| Reverse Leakage (IR) | ≤100 µA @ 6.0 V - Minimal quiescent load on 5–6 V systems; avoids battery drain in always-on modules. |
| Junction Temperature Range | –55°C to +175°C - Validated operation across full automotive under-hood thermal envelope. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount molded plastic case with cathode band marking; UL 94V-0 rated, halogen- and antimony-free; weight ≈ 0.064 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (non-banded end) | Current sink during transient | Connected to protected line (e.g., 5.5 V rail); conducts surge current to ground path. |
| Cathode (banded end) | Reference terminal / surge return | Connected to system ground or low-impedance chassis; defines polarity and clamping reference. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HTRB, and ESD testing per stress test plan. |
| Lead-free & green construction | Matte tin-plated leads, RoHS 3 compliant, halogen-free (<900 ppm Br/Cl, <1000 ppm Sb), UL 94V-0 molding compound. |
| Low leakage & fast response | IR ≤ 100 µA at VR; sub-1 ns turn-on enables protection of high-speed interfaces like LIN and CAN FD. |
| High surge robustness | 600 W peak power rating supports repeated exposure to ISO 16750-2 load dump surges up to 35 V. |
Applications
| Engine Control Unit (ECU) Power Input | Infotainment System USB Port Protection |
|---|---|
Use Scenario: Protects 5 V microcontroller power rail against load dump and alternator ripple in gasoline/diesel ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input fuse and DC-DC converter input; clamps transients before they reach LDOs and MCU VDD. Use Value: Clamping at 9.5 V ensures MCU reset threshold (typically 4.5–4.7 V) remains unbreached during 60 V/100 ms load dump events. |
Use Scenario: Shields USB 2.0 data lines and VBUS from ESD and hot-plug surges in head unit applications. IC Role / Device Role / Timing Role: Dual ASMA6J6.0A devices (one per D+/D−) with shared cathode to ground; provides bidirectional-like protection via layout symmetry. Use Value: Sub-1 ns response prevents >8 kV HBM ESD pulses from corrupting USB PHY registers or damaging transceivers. |
| CAN Bus Interface Protection | Body Control Module (BCM) Sensor Supply Line |
Use Scenario: Guards CANH/CANL differential pair against ISO 7637-2 Pulse 2a (inductive switch-off) and Pulse 5 (load dump). IC Role / Device Role / Timing Role: One ASMA6J6.0A on CANH-to-ground and one on CANL-to-ground; unidirectional configuration preserves common-mode noise rejection. Use Value: 9.5 V clamping maintains CAN transceiver common-mode range (–2 V to +7 V) while limiting differential overshoot to safe levels. |
Use Scenario: Stabilizes 5 V sensor supply (e.g., for pressure or temperature sensors) against battery voltage spikes during cranking. IC Role / Device Role / Timing Role: Placed upstream of linear regulator feeding analog front-end; absorbs energy before regulator dropout occurs. Use Value: 61 A IPP capacity handles 12 V system surges up to 30 V/500 ms without degradation, ensuring sensor accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.0A (onsemi) | Same SMA package, 6.0 V VR, but 10% tolerance (vs. ASMA6J6.0A's 5%), higher VC = 10.3 V @ 58.3 A. | Lower IPP (58.3 A vs. 61 A) and looser tolerance reduce margin in tight-clamp designs like 5 V MCU rails. | Select SMAJ6.0A only if cost sensitivity outweighs clamping precision and surge headroom. |
| 1.5SMC6.0A (Littelfuse) | Higher power rating (1500 W), DO-214AB package (larger than SMA), VC = 10.5 V @ 143 A. | Physically incompatible with SMA footprints; requires PCB redesign; over-specified for most automotive signal-line protection. | Choose only when legacy board space allows DO-214AB and system demands >1 kW surge handling. |
Compared with SMAJ6.0A and 1.5SMC6.0A, ASMA6J6.0A delivers tighter 5% tolerance, lower clamping voltage, and exact SMA footprint compatibility-making it optimal for new automotive designs where board space, thermal profile, and precise voltage limiting are critical.
Availability
ASMA6J6.0A is available at Aetrix Electronics and suitable for engine control units, infotainment power inputs, and CAN bus interface protection requiring stable component supply across extended automotive production lifecycles.
Supply support for ASMA6J6.0A 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
Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and mixed-signal solutions, with design, manufacturing, and test facilities certified to IATF 16949.
The ASMA6J SERIES(LS) is part of Diodes' automotive-grade TVS portfolio, engineered specifically for AEC-Q101 compliance, PPAP readiness, and robust operation in harsh vehicle environments including under-hood and body electronics.
FAQ
What is the maximum allowable mounting temperature for ASMA6J6.0A during reflow soldering?
The ASMA6J6.0A is rated for lead-free reflow per J-STD-020 Level 1, supporting peak temperatures up to 260°C for ≤30 seconds. Its matte tin-plated terminals ensure reliable wetting and intermetallic formation without voiding or delamination when using standard SAC305 paste profiles.
Can ASMA6J6.0A be used in bi-directional protection configurations?
No - ASMA6J6.0A is unidirectional only, indicated by its cathode band marking. For bi-directional protection, Diodes specifies ASMA6J6.0CA (with 'C' suffix), which has symmetrical breakdown in both polarities and no cathode band. Using ASMA6J6.0A in reverse bias risks permanent breakdown above 6.0 V.
How does the 600 W peak pulse rating translate to real-world surge immunity?
The 600 W rating corresponds to a 10/1000 µs double-exponential waveform per IEC 61000-4-5. At 9.5 V clamping, this supports up to 61 A peak current - sufficient to suppress ISO 7637-2 Pulse 5a (load dump) events up to 60 V/100 ms when combined with appropriate series impedance (e.g., 1 Ω fuse + 100 µH choke).
Is ASMA6J6.0A suitable for protecting 3.3 V logic interfaces?
No - its 6.0 V standoff and 9.5 V clamping voltage exceed safe limits for 3.3 V systems, risking damage to I/O pins. For 3.3 V rails, Diodes recommends ASMA6J3.3A (VR = 3.3 V, VC = 6.4 V) or PUSB3FR (low-capacitance USB-specific TVS) instead.
ASMA6J6.0A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AC, SMA
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 6V
- Voltage - Breakdown (Min):
- 6.7V
- Voltage - Clamping (Max) @ Ipp:
- 9.5V
- Current - Peak Pulse (10/1000µs):
- 61A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMA
ASMA6J6.0A FAQ
1.How can I place an order for ASMA6J6.0A through Aetrix?
Please submit a Request for Quotation (RFQ) for ASMA6J6.0A 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 ASMA6J6.0A reliable?
The price and inventory of ASMA6J6.0A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ASMA6J6.0A is usually 5 days.
3.What payment methods are accepted for ASMA6J6.0A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ASMA6J6.0A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ASMA6J6.0A?
ASMA6J6.0A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ASMA6J6.0A 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 ASMA6J6.0A?
For technical support, including ASMA6J6.0A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ASMA6J6.0A requirements.
6.How does Aetrix verify that ASMA6J6.0A is sourced from the original manufacturer or authorized distributors?
All ASMA6J6.0A 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 ASMA6J6.0A meets industry standards.
7.What is the process for return or replacement of ASMA6J6.0A?
All ASMA6J6.0A units undergo pre-shipment inspection (PSI). If there is an issue with ASMA6J6.0A, 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 ASMA6J6.0A part is unused and in its original packaging.
Return procedure for ASMA6J6.0A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ASMA6J6.0A 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
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…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
