9e102 Datasheet May 2026

This article provides a definitive, deep-dive analysis of the 9E102 datasheet, including electrical characteristics, thermal ratings, soldering profiles, equivalent parts, and common application circuits. If you are designing a high-frequency filter, a decoupling network, or troubleshooting a power supply, this guide is for you. Before downloading a datasheet, you must understand how to read the marking. The code 9E102 is a shortened, manufacturer-specific marking typically printed on the body of an SMD ceramic capacitor. The breakdown is as follows:

When sourcing this component, always cross-reference to a full manufacturer part number (e.g., AVX 06035C102KAT2A) and obtain the official datasheet from a distributor. Never rely solely on the marking code. For engineers, mastering these small details prevents field failures and ensures reliable PCB designs. 9e102 datasheet

Introduction In the world of electronic components, few identifiers are as cryptic—and as critical—as the alphanumeric code found on a device’s casing. For engineers, hobbyists, and procurement specialists, the term "9E102 datasheet" frequently appears in search logs, yet it is often misunderstood. Is it a transistor? A capacitor? A specific integrated circuit (IC) from a major manufacturer? This article provides a definitive, deep-dive analysis of

The reality is that is not a universal standard part number across all brands. Instead, it most commonly refers to a surface-mount ceramic capacitor (typically manufactured by AVX, Murata, or KEMET) or, in some legacy cases, a small-signal switching transistor . However, the predominant and most sought-after interpretation in 2025 is the 9E102 capacitor , specifically a 1000 pF (1 nF), 50V to 100V, X7R or C0G dielectric capacitor in an 0603 or 0805 package . The code 9E102 is a shortened, manufacturer-specific marking

VCC (3.3V) → 9E102 → GND. Place within 2 mm of IC power pin. 3.2 Crystal Oscillator Loading Many microcontroller datasheets (e.g., ATmega328P, STM32) require a 12-22 pF load capacitor for 16 MHz crystals. The 9E102 is too large for that role. However, it is used in parallel with a crystal as a DC blocking capacitor in Pierce oscillators for low-frequency crystals (32.768 kHz). Verify with your MCU’s datasheet. 3.3 EMI/RFI Filtering Pair the 9E102 with a ferrite bead to create a pi-filter (C-L-C) for power lines. Example: Input → 10 µF electrolytic → Ferrite bead → 9E102 → Load. This attenuates conducted emissions above 10 MHz. 3.4 Snubber Circuit for Relays Use a 9E102 in series with a 100 Ω resistor across relay contacts or a triac to suppress voltage spikes (dI/dt). For 24V AC or DC circuits, the 50V rating is sufficient. For 110V AC, select the 100V variant. 3.5 Analog Feedback Networks In op-amp circuits (e.g., non-inverting amplifier), a 9E102 placed in parallel with the feedback resistor reduces high-frequency gain and prevents oscillation. For a gain of 10, with Rf = 10 kΩ, the 1 nF cap creates a pole at ≈ 16 kHz. Part 4: Soldering & PCB Layout Guidelines The 9E102 (0603/0805) is sensitive to thermal stress and board flexing. Follow these rules from the official datasheet: 4.1 Reflow Soldering Profile (Lead-free SAC305) | Zone | Temperature | Ramp Rate | Time | |------|-------------|-----------|------| | Preheat | 150°C → 200°C | 1–3°C/sec | 60–120 sec | | Soak | 200°C → 245°C | < 3°C/sec | 30–60 sec | | Reflow Peak | 260°C max | — | 10 sec max | | Cooling | → 180°C | -3 to -6°C/sec | — |

| Symbol | Meaning | Typical Value | |--------|---------|----------------| | | Manufacturer code or voltage/tolerance class (e.g., 9 = 50V or 100V, varies by brand) | 50V (AVX), 100V (Murata) | | E | Dielectric material | X7R or C0G (NP0) | | 102 | Capacitance code (10 × 10² pF) | 1000 pF = 1 nF |