# CBB23B-THB Series Box-Type Metallized Polypropylene Film Capacitors (THB)

> Boxed metallized polypropylene film capacitors for high-voltage, high-frequency pulse circuits; moisture-resistant double-85 type (85 °C / 85% RH). 350 / 400 VAC, 2.2 nF–1 µF.

- Series code: CBB23B-THB
- Product line: [Film capacitors](https://www.songtian-ste.com/en/products/film-capacitors/) › Damp-heat capacitors (THB, 85 °C / 85 % RH)
- Part numbers: Part-number list on request
- Page: https://www.songtian-ste.com/en/products/film-capacitors/cbb23b-thb/
- Chinese version: https://www.songtian-ste.com/zh/products/film-capacitors/cbb23b-thb/
- [Ask AI about this series](https://www.songtian-ste.com/en/products/film-capacitors/cbb23b-thb/?ask=Help%20me%20choose%20a%20part%20from%20the%20STE%20CBB23B-THB%20series.)

## Key specifications

| Parameter | Value |
| --- | --- |
| Humidity type | 85 °C / 85% RH (double-85) |
| Rated voltage | 350 / 400 VAC |
| Capacitance | 0.0022–1.0 µF |
| Tolerance | ±5% / ±10% |
| Lead spacing | 10 / 15 / 22.5 / 27.5 mm |
| Operating temperature | −40 °C to +105 °C |

## Engineering details

### Overview

Metallized polypropylene film capacitors with internal series construction for high-voltage, high-frequency pulse circuits and electronic lighting. Self-healing film in a resin-sealed plastic box; moisture-resistant double-85 type. Rated 350 / 400 VAC, 0.0022–1.0 µF, J ±5% or K ±10%. Lead spacing 10–27.5 mm. Operating temperature −40 °C to +105 °C.

#### Series features

- Internal series construction with self-healing metallized polypropylene film
- Rated 350 / 400 VAC, 0.0022–1.0 µF
- Lead spacing 10, 15, 22.5 and 27.5 mm
- Dissipation factor tan δ ≤0.1% at 1 kHz
- Moisture-resistant double-85 type (85 °C / 85% RH); THB test data on request

#### Typical applications

- High-voltage, high-frequency pulse circuits
- Electronic lighting and ballast circuits
- Snubber and resonant circuits (dV/dt and peak current on request)
- AC filtering in compact power electronics; verify self-heating in the application

### Specifications

|   |   |
| --- | --- |
| Product type | High-voltage AC and pulse film capacitor; not an IEC 60384-14 X/Y safety capacitor |
| Winding construction | Internal series |
| Dielectric and encapsulation | Metallized polypropylene film, self-healing · resin-sealed plastic box |
| Rated AC voltage | 350 · 400 VAC |
| Capacitance range | 0.0022–1.0 µF |
| Capacitance tolerance | J ±5% · K ±10% |
| Operating temperature | −40 °C to +105 °C |
| Climatic category | 40/100/21 |
| Use above 100 °C | Voltage and current derating above 100 °C on request |
| Dissipation factor | tan δ ≤0.1% at 1 kHz, 1.0 Vrms, 20 °C |
| Insulation resistance | ≥50,000 MΩ at 100 VDC, 60 s, 20 °C |
| Voltage proof, terminal to terminal | 1.6 × UR for 5 s |
| Humidity type | Double-85 (85 °C / 85% RH), moisture-resistant |
| Resin flammability | UL 94 V-0 (encapsulation resin; not a component safety approval) |
| Body dimensions | W 13–32 · H 9–33 · T 4–18 mm, depending on voltage, capacitance and lead spacing |
| Lead spacing | 10 · 15 · 22.5 · 27.5 mm |
| Lead diameter | 0.6 mm at 10 mm spacing · 0.8 mm at 15–27.5 mm spacing |
| Lead forms and packing | Long straight · inner-bent · straight taped · bent taped |
| Taping | Tape dimensions specified for P = 10 / 15 / 20 or 22.5 mm; 27.5 mm and bulk packing quantities on request |
| Soldering profile, PP | Preheat Tp ≤110 °C · soldering Ts ≤120 °C for ≤15 s |
| Soldering profile, PE | Preheat Tp ≤125 °C · soldering Ts ≤160 °C for ≤15 s |
| Hand soldering | Iron ≤350 °C · ≤3 s · ≥2 mm from the coating |
| Reflow soldering | Not permitted; film shrinkage can degrade performance |
| Storage temperature | 15–35 °C |
| Further data | On request: permissible AC voltage versus frequency and temperature derating · DC rating · dV/dt · peak and RMS current · ESR · ESL · self-heating · THB bias voltage, duration and post-test ΔC, tan δ and IR limits · storage humidity and shelf life · endurance, overload, thermal-cycle, vibration and lead-strength test results |

### Variants

Ranges by dielectric, package and lead style within this series.

| Variant | Body dimensions | Rated voltage / capacitance | Dielectric / tolerance | Lead / land pattern | Notes |
| --- | --- | --- | --- | --- | --- |
| N · 10 mm | W 13 · H 9–12 · T 4–6 mm | 350 / 400 VAC · 0.0022–0.022 µF | Metallized PP · J/K | P 10 ±1.0 · d 0.6 ±0.05 mm | Smallest lead spacing; low capacitance values for high-frequency duty. |
| Q · 15 mm | W 18 · H 11–19 · T 5–11 mm | 350 / 400 VAC · 0.01–0.12 µF | Metallized PP · J/K | P 15 ±1.0 · d 0.8 ±0.05 mm | Low to medium capacitance; pulse and thermal ratings on request. |
| T · 22.5 mm | W 26.5 · H 15–23 · T 6–13 mm | 350 / 400 VAC · 0.047–0.47 µF | Metallized PP · J/K | P 22.5 ±1.0 · d 0.8 ±0.05 mm | Larger body for pulse duty; dV/dt, current and self-heating data on request. |
| V · 27.5 mm | W 31.5–32 · H 20–33 · T 11–18 mm | 350 / 400 VAC · 0.15–1.0 µF | Metallized PP · J/K | P 27.5 ±1.0 · d 0.8 ±0.05 mm | Highest capacitance; support the body on the board. Lifetime data on request. |

### Selection guide

Define the AC waveform, frequency and pulse stress first. Then select rated voltage, capacitance and lead spacing, and check pulse, humidity and temperature-derating data for the selected part.

1. **Define the circuit position**
   Define the AC waveform, frequency, pulse repetition rate and the applicable equipment standard. The series has no X/Y safety approval; do not use it as a safety capacitor.
2. **Confirm voltage rating and derating**
   Request the permissible AC voltage versus frequency, any DC rating and the temperature derating for the selected part. The 350/400 VAC rating alone does not define pulse capability.
3. **Calculate pulse current and self-heating**
   Request dV/dt, peak and RMS current, ESR, ESL and thermal-resistance limits, and validate the actual ballast, resonant or snubber waveform on the application PCB.
4. **Check humidity performance**
   Double-85 means 85 °C / 85% RH. Request the THB bias voltage, duration and post-test limits and compare them with the mission profile.
5. **Specify dimensions, soldering and packing**
   Map the capacitance to W/H/T, lead spacing, lead diameter, lead form and packing. Validate the soldering profile for the dielectric; reflow soldering is not permitted.

### Design notes

#### Not an X/Y safety capacitor

The series has no IEC 60384-14 safety class and no agency approval. Where the equipment standard requires a safety capacitor, use a certified X or Y capacitor.

#### Internal series construction

Voltage sharing, ESL and failure mode depend on the internal series design; data for the selected part on request.

#### Pulse duty needs waveform data

The 350/400 VAC rating does not define dV/dt, peak current, repetition rate or resonant stress. Validate the actual ballast or snubber waveform against the limits of the selected part.

#### Control temperature rise, not ambient alone

Design with ESR versus frequency, RMS current, thermal resistance, ambient temperature, airflow and hot-spot limits. Validate self-heating in the final enclosure and apply voltage and current derating.

#### Humidity rating

Double-85 denotes the moisture-resistant 85 °C / 85% RH type. For humid service, request the THB test report and compare it with the mission profile.

#### Assembly

Specify body size, lead spacing, lead form, packing, soldering profile, cleaning and coating for each part number. Reflow soldering is not permitted. Support 27.5 mm bodies on the board.

### Part numbering

Example ordering code. Not every combination is available.

`4B · 2J · 334 · J · Q · 1 · B0 · 180 · 145 · 085 · E · S · 8`

| Code | Meaning |
| --- | --- |
| 4B | Series code: CBB23B |
| 2J | Rated voltage code: R2 = 350 VAC, G2 = 400 VAC (for code 2J in the example, see the datasheet) |
| 334 | Capacitance code: 334 = 330 nF |
| J | Capacitance tolerance: J = ±5%, K = ±10% |
| Q | Lead spacing: N = 10 mm, Q = 15 mm, T = 22.5 mm, V = 27.5 mm |
| 1 | Lead form: 1 = long straight, 2 = inner-bent, 5 = straight taped, 6 = bent taped |
| B0 | Lead length code: B0 = 20.0 mm |
| 180 | Body width: 180 = 18.0 mm |
| 145 | Body height: 145 = 14.5 mm |
| 085 | Body thickness: 085 = 8.5 mm |
| E | Environmental code: E = RoHS, F = RoHS + halogen-free |
| S | Code position assigned by STE |
| 8 | STE internal management code |

## Datasheets & approval documents

- [Datasheet: CBB23B-THB series box-type metallized polypropylene (PP) film capacitors, 85 °C / 85 % RH (THB) type — short-form datasheet (2023-10)](https://www.songtian-ste.com/documents/source-cn/%E9%87%91%E5%B1%9E%E8%86%9C%E7%94%B5%E5%AE%B9%E5%99%A8%E7%B3%BB%E5%88%97%E4%BA%A7%E5%93%81%E8%A7%84%E6%A0%BC%E4%B9%A6/%E5%8F%8C85%E7%B3%BB%E5%88%97/%E7%9B%92%E5%BC%8F%E9%87%91%E5%B1%9E%E5%8C%96%E8%81%9A%E4%B8%99%E7%83%AF%E8%86%9C%E5%8F%8C85%E5%9E%8B%E7%94%B5%E5%AE%B9%E5%99%A8%28CBB23B-THB%29%E7%AE%80%E7%89%88%E8%A7%84%E6%A0%BC%E4%B9%A6-202310.pdf) — PDF · Chinese · 2023-10 · 278 KB

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