MMDL914T1G - 100V 200mA High-Speed Switching Diode | onsemi
部品番号: MMDL914T1G ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0.13 | $0.13 |
| 10 | $0.1 | $1.00 |
| 100 | $0.06 | $6.00 |
| 500 | $0.045 | $22.50 |
| 1,000 | $0.035 | $35.00 |
MMDL914T1G 概要
A switching diode is a two-terminal semiconductor device optimized for fast transitions between its conducting (forward-biased) and blocking (reverse-biased) states. In the broader component hierarchy, switching diodes fall under small-signal diodes, which sit within discrete semiconductors and ultimately under the power management and signal-conditioning umbrella. Unlike rectifier diodes (designed for 50/60 Hz mains rectification), switching diodes target kilohertz-to-megahertz switching in logic-level translation, clamping, protection, and waveform-shaping circuits.
Key specifications include a 100 V maximum repetitive peak reverse voltage, 200 mA average rectified forward current, a forward voltage drop of approximately 1.0 V at 10 mA, ultra-fast reverse recovery time on the order of a few nanoseconds, and a low junction capacitance. These characteristics enable clean high-speed switching without the slow tail current that slower diodes exhibit, which would otherwise distort fast edges. The SOD-323 package occupies a footprint roughly 40% smaller than the legacy SOD-123, saving board area in dense designs.
The architecture uses a planar silicon PN junction with optimized minority carrier lifetime control to achieve fast turn-off. This same construction also yields low leakage across the rated voltage and predictable temperature behavior, making it suitable for circuits that must operate reliably across wide thermal swings. Its automotive-grade qualification (AEC-Q101) reflects onsemi's ability to deliver PPAP documentation and stricter process control for OEM supply chains.
Typical applications include high-speed logic switching, signal steering and routing in multiplexers, voltage clamping and protection in data lines, freewheeling diodes for small inductive loads, and general-purpose rectification in low-current rails. Engineers frequently select the MMDL914T1G in place of the legacy 1N914 in modern surface-mount designs. The compact SOD-323 footprint also makes it attractive for portable and IoT hardware where PCB area is at a premium.
When designing with this diode, observe the 200 mA average forward current limit and provide adequate thermal copper to keep junction temperature within the -55 C to +150 C window. For switching speeds above 100 MHz, account for the diode's junction capacitance when calculating expected rise times and feedthrough loss.
This page synthesizes onsemi datasheet specifications, distributor availability, AEC-Q101 qualification context, and SOD-323 drop-in alternatives across onsemi, Nexperia, Diodes Incorporated, and Vishay - information not aggregated on any single distributor product page.
ドロップイン代替品: MMDL914T1G — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
クイック比較ツール — 並列比較する代替部品を選択:
MMDL914T3G
✅ ドロップイン📋 参考代替品（カタログ未掲載）
BAS16
✅ ドロップイン📋 参考代替品（カタログ未掲載）
BAS16WS
✅ ドロップイン📋 参考代替品（カタログ未掲載）
1N4148WS-7-F
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MMDL914T1G 最大定格＆電気的特性
| Diode Type | High-Speed Switching Diode |
| パッケージ | SOD-323 |
| 実装タイプ | Surface Mount |
| Maximum Repetitive Peak Reverse Voltage (VRRM) | 100 V |
| Average Rectified Forward Current (IF(AV)) | 200 mA |
| 動作接合温度範囲 | -55 C to +150 C |
| Storage Temperature Range | -55 C to +150 C |
| Automotive Qualification | AEC-Q101 qualified and PPAP capable |
| Pb-Free / Halogen-Free | Yes (Pb-free, halogen free/BFR free) |
| RoHS Compliance | Compliant |
| MSLレベル | 1 (per PartGenie listing) |
MMDL914T1G ピン構成
| ピン 1 | Cathode (K) — Cathode terminal (banded end) |
| ピン 2 | Anode (A) — Anode terminal |
主な用途
MMDL914T1G の用途: 6 件s: High-Speed Logic Signal Switching, Voltage Clamping and ESD Protection, Freewheeling Diode for Small Inductors, Automotive Body Electronics and Sensor Conditioning, Portable and IoT Device Design, Industrial Control and PLC I/O.
High-Speed Logic Signal Switching
The MMDL914T1G's 100 V VRRM and low junction capacitance make it a strong fit for high-speed logic signal routing. In logic-level multiplexer and decoder networks, the diode's fast reverse recovery keeps propagation delay tight, preserving signal integrity at clock edges above 10 MHz. Designers place the SOD-323 part between logic gates and bus lines to steer or block signals with minimal feedthrough loss. Its 200 mA forward current comfortably exceeds typical 5 V / 10 mA logic rail switching demands, while the AEC-Q101 qualification supports automotive body controllers and infotainment switching matrices.
おすすめ
Voltage Clamping and ESD Protection
Use the MMDL914T1G as a clamping or steering diode on data lines, control lines, and low-voltage rails. With 100 V reverse standoff it tolerates transients far above typical 3.3 V / 5 V signal levels, while its SOD-323 footprint fits in dense protection arrays on USB, HDMI, and CAN bus interfaces. The diode's fast switching response suppresses fast transients before they reach sensitive ICs, and the AEC-Q101 rating supports automotive CAN, LIN, and FlexRay protection networks where PPAP documentation is mandatory. Combine with TVS diodes for two-stage protection schemes.
おすすめ
Freewheeling Diode for Small Inductors
The MMDL914T1G is well suited as a freewheeling (flyback) diode across small relay coils, solenoids, and small motor windings where stored inductive energy must circulate safely when the switch opens. Its 200 mA forward current comfortably handles relay pull-in currents, and the 100 V reverse rating accommodates back-EMF from 12 V and 24 V automotive coils. The SOD-323 footprint is small enough to fit inside the relay footprint itself. Designers must still verify that peak surge current during turn-off stays within IFSM ratings to prevent diode failure.
おすすめ
Automotive Body Electronics and Sensor Conditioning
The MMDL914T1G's AEC-Q101 qualification and PPAP capability make it a strong match for automotive body and sensor conditioning modules. Applications include signal rectification in seat-heater controllers, body-control modules (BCMs), and sensor signal paths where the SOD-323 footprint saves PCB area. Its -55 C to +150 C junction temperature range covers under-hood and cabin thermal environments, and its halogen-free / Pb-free construction aligns with automotive environmental compliance programs. Production engineers benefit from onsemi's documented change-control and long-term automotive supply continuity.
おすすめ
Portable and IoT Device Design
Wearable, IoT, and portable consumer electronics benefit from the MMDL914T1G's tiny SOD-323 footprint (roughly 1.7 mm x 1.25 mm) and low capacitance, which preserves battery life and signal integrity. The diode appears in low-power sensor interfaces, button-debounce networks, charge-path steering, and battery-balancing auxiliary circuits. Its Pb-free and halogen-free construction satisfies consumer electronics environmental compliance including RoHS and REACH, and onsemi's wide distributor availability supports the high-mix, low-quantity logistics typical of consumer IoT. Use the part where 100 V reverse margin protects against ESD-induced transients.
おすすめ
Industrial Control and PLC I/O
In industrial PLC, factory automation, and process-control designs, the MMDL914T1G handles low-current switching and signal conditioning on 24 V digital inputs and outputs. The 100 V reverse rating exceeds the typical 24 V rail transients seen in industrial environments, and the AEC-Q101 qualification gives OEMs an upgrade path to higher-reliability platforms without changing the BOM. The SOD-323 package supports dense I/O cards where each channel needs discrete clamping or steering, and the wide -55 C to +150 C operating range covers unheated cabinet and outdoor enclosures.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: MMDL914T1G — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | MMDL914T3G | BAS16 | BAS16WS | 1N4148WS-7-F | MMBD914 |
|---|---|---|---|---|---|---|
| Brand | onsemi | onsemi | Nexperia | Nexperia | Diodes Incorporated | onsemi |
| Package | SOD-323 | SOD-323 - same | SOD-323 - same | SOD-323 - same | SOD-323 - same | SOT-23 - different (NOT drop-in for SOD-323 footprint) |
| Maximum Reverse Voltage (VRRM) | 100 V | 100 V | 100 V | 100 V | 75 V | 100 V |
| Average Forward Current (IF(AV)) | 200 mA | 200 mA | 200 mA | 200 mA | 150 mA | 200 mA |
| Pb-Free / Halogen-Free | Yes | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature Range | -55 C to +150 C | -55 C to +150 C | -65 C to +150 C | -65 C to +150 C | -65 C to +150 C | -55 C to +150 C |
| Source | Verified Web Data | web_data | web_data | web_data | web_data | llm_knowledge (same-family reference; package differs - NOT true drop-in) |
主な差別化要因
- AEC-Q101 / PPAP automotive qualification （vs 1N4148WS-7-F (Diodes Incorporated))
- Tighter 100 V VRRM (vs 75 V) for higher-voltage margin （vs 1N4148WS-7-F (Diodes Incorporated))
- Same-brand pin-compatible second source for multi-sourcing （vs MMDL914T3G (onsemi))
設計ノート
Estimated: the MMDL914T1G in SOD-323 dissipates roughly 200 mW at 200 mA with a forward drop near 1 V. Per onsemi, the SOD-323 has a typical thermal resistance in the 400 C/W range; at full rated current in still air the junction temperature rise is approximately 80 C above ambient. Provide minimum 25 mm^2 of 1 oz copper land on each terminal, and derate IF(AV) by roughly 1 mA/C above 25 C ambient. For pulsed loads, refer to the IFSM rating and pulse thermal curves in the datasheet.
Place the MMDL914T1G close to the signal source being clamped or steered to minimize parasitic inductance that would otherwise reduce effectiveness at high dV/dt. Per onsemi, the SOD-323 cathode band identifies the cathode terminal - mirror this orientation across all instances on a multi-diode array to simplify visual inspection and rework. Use a reflow profile compatible with MSL 1 (unlimited floor life per JEDEC J-STD-020) to simplify logistics.
Do not exceed the 100 V VRRM rating on transient events - even brief excursions above VRRM can cause avalanche stress and shorten life. Ensure DC reverse bias stays comfortably below this rating (typically derated to 75% of VRRM for reliability). When using the MMDL914T1G as a freewheeling diode, verify that the peak reverse voltage generated at switch-off stays below 100 V, and consider a TVS in parallel for additional margin on harsh inductive loads.
For high-speed switching above 10 MHz, the MMDL914T1G's junction capacitance (typically in the low pF range) adds loading to the signal path. Per onsemi, designers should include this capacitance in rise-time and bandwidth calculations, especially in multiplexers and sampling circuits. Where lower capacitance is needed, consider a dedicated RF switching diode; where higher current is needed, step up to a Schottky or rectifier diode.
コンプライアンス情報
Per onsemi datasheet: AEC-Q101 qualified (automotive grade), PPAP capable, Pb-free, halogen free/BFR free. RoHS and REACH compliant per PartGenie compliance notes (ROHS3 Compliant, REACH Unaffected). Note: AEC-Q101 (automotive discrete) is the applicable qualification standard rather than AEC-Q100 (automotive IC).
